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SMC AL40-D Lubricator Operation Manual PDF
Summary of Content for SMC AL40-D Lubricator Operation Manual PDF
Doc. No. AL-OMX0056-A
PRODUCT NAME
Lubricator
MODEL / Series / Product Number
AL20-(F,N)01(F,N)02(B)(-2,3,6,C,R,Z)-D
AL30-(F,N)02(F,N)03(B)(-2,3,6,8,R,W,Z)-D
AL40-(F,N)02(F,N)04(B)(-2,3,6,8,R,W,Z)-D
AL40-(F,N)06(B)(-2,3,6,8,R,W,Z)-D
AL50-(F,N)06(F,N)10(B)(-2,3,6,8,R,W,Z)-D
AL60-(F,N)10(B)(-2,3,6,8,R,W,Z)-D
Contents
Page
1. Safety Instructions 2-6
2. Application 7
3. Standard Specifications 7
4. How to Order 8
5. Structural Drawing, Option and Replacement Parts 9
6. Bowl Assembly Specifications 10-14
7. Assembly of Optional Parts 15
8. Operation and Adjustment 16-19
8-1. Adjustment of Dripping Amount 16
8-2. Lubrication 17-18
8-3. Oil Discharge from the Product with Drain Cock 19
9. Trouble Shooting 20
10. How to Replace the Components 21-30
10-1. Bowl Assembly Replacement 21-23
10-2. Bumper Retainer Assembly Replacement 24-27
10-3. Bumper and Sight Dome Assembly Replacement 28-30
11. Disassembly Drawing 31-32
12. Dimensions 33
-1-
Safety Instructions These safety instructions are intended to prevent hazardous situations and/or equipment damage. These instructions indicate the level of potential hazard with the labels of Caution, Warning or Danger. They are all important notes for safety and must be followed in addition to International Standards (ISO/IEC)*1) , and other safety regulations. *1) ISO 4414: Pneumatic fluid power -- General rules relating to systems. ISO 4413: Hydraulic fluid power -- General rules relating to systems. IEC 60204-1: Safety of machinery -- Electrical equipment of machines .(Part 1: General requirements) ISO 10218: Manipulating industrial robots -Safety. etc.
Caution Caution indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.
Warning Warning indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.
Danger Danger indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.
Warning 1. The compatibility of the product is the responsibility of the person who designs the equipment or
decides its specifications. Since the product specified here is used under various operating conditions, its compatibility with specific equipment must be decided by the person who designs the equipment or decides its specifications based on necessary analysis and test results. The expected performance and safety assurance of the equipment will be the responsibility of the person who has determined its compatibility with the product. This person should also continuously review all specifications of the product referring to its latest catalog information, with a view to giving due consideration to any possibility of equipment failure when configuring the equipment.
2. Only personnel with appropriate training should operate machinery and equipment. The product specified here may become unsafe if handled incorrectly. The assembly, operation and maintenance of machines or equipment including our products must be performed by an operator who is appropriately trained and experienced.
3. Do not service or attempt to remove product and machinery/equipment until safety is confirmed. 1.The inspection and maintenance of machinery/equipment should only be performed after measures to
prevent falling or runaway of the driven objects have been confirmed. 2.When the product is to be removed, confirm that the safety measures as mentioned above are implemented and the power from any appropriate source is cut, and read and understand the specific product precautions of all relevant products carefully. 3. Before machinery/equipment is restarted, take measures to prevent unexpected operation and malfunction.
4. Contact SMC beforehand and take special consideration of safety measures if the product is to be used in any of the following conditions. 1. Conditions and environments outside of the given specifications, or use outdoors or in a place exposed to direct sunlight. 2. Installation on equipment in conjunction with atomic energy, railways, air navigation, space, shipping,
vehicles, military, medical treatment, combustion and recreation, or equipment in contact with food and beverages, emergency stop circuits, clutch and brake circuits in press applications, safety equipment or other applications unsuitable for the standard specifications described in the product catalog.
3. An application which could have negative effects on people, property, or animals requiring special safety analysis.
4.Use in an interlock circuit, which requires the provision of double interlock for possible failure by using a mechanical protective function, and periodical checks to confirm proper operation.
-2-
Safety Instructions
Caution The product is provided for use in manufacturing industries.
The product herein described is basically provided for peaceful use in manufacturing industries. If considering using the product in other industries, consult SMC beforehand and exchange specifications or a contract if necessary.
If anything is unclear, contact your nearest sales branch.
Limited warranty and Disclaimer/Compliance Requirements The product used is subject to the following Limited warranty and Disclaimer and Compliance Requirements. Read and accept them before using the product.
Limited warranty and Disclaimer
1.The warranty period of the product is 1 year in service or 1.5 years after the product is
delivered,whichever is first.2) Also, the product may have specified durability, running distance or replacement parts. Please consult your nearest sales branch.
2. For any failure or damage reported within the warranty period which is clearly our responsibility, a replacement product or necessary parts will be provided. This limited warranty applies only to our product independently, and not to any other damage
incurred due to the failure of the product. 3. Prior to using SMC products, please read and understand the warranty terms and disclaimers
noted in the specified catalog for the particular products.
2) Vacuum pads are excluded from this 1 year warranty. A vacuum pad is a consumable part, so it is warranted for a year after it is delivered.
Also, even within the warranty period, the wear of a product due to the use of the vacuum pad or failure due to the deterioration of rubber material are not covered by the limited
warranty.
Compliance Requirements
1. The use of SMC products with production equipment for the manufacture of weapons of mass destruction(WMD) or any other weapon is strictly prohibited.
2. The exports of SMC products or technology from one country to another are governed by the relevant security laws and regulation of the countries involved in the transaction. Prior to the shipment of a SMC product to another country, assure that all local rules governing that export are known and followed.
Caution SMC products are not intended for use as instruments for legal metrology. Measurement instruments that SMC manufactures or sells have not been qualified by type approval tests relevant to the metrology (measurement) laws of each country.
Therefore, SMC products cannot be used for business or certification ordained by the metrology
(measurement) laws of each country.
-3-
Precautions for Design
Warning
(1) Consult SMC if no leakage is allowed due to the environment, or if the operating fluid is not air.
(2) Polycarbonate resin is used for external parts including the bowl and sight dome. Organic
solvents including thinner, acetone, alcohol and ethylene chloride; chemicals including sulphuric
acid, nitric acid and hydrochloric acid; cutting oil, synthetic oils, ester-based compressor oil, alkali,
kerosene, gasoline, lock material of screw are harmful. Do not use the product where these are
present.
Chemical resistance of polycarbonate and nylon used for the bowl and sight dome
When the above factors are present or there is some doubt, use a metal bowl for safety.
(3) Avoid the application where charge and discharge of pressure to/from a standard bowl is switched
frequently. This may damage the bowl. A metal bowl is recommended in these cases.
(4) Shield from ultra violet light and radiation with protective cover.
-4-
Polycarbonate Nylon
Hydrochloric acid
Sulfuric acid
Phosphoric acid
Chromic acid
Sodium hydroxide (Caustic soda)
Potash
Calcium hydroxide (Slack lime) Ammonia water
Carbotane of soda
Sodium sulfide
Potassium nitrate Sulfate of soda
Carbon tetrachloride
Chloroform
Ethylene chloride
Methylene chloride
Benzene
Toluene
Paint thinner
Acetone
Methyl ethyl ketone
Cyclohexane
Ethyl alcohol
IPA
Methyl alcohol
Gasoline
Kerosene
Phthalic acid dimethyl
Phthalic acid diethyl Acetic acid
Methyl ether
Ethyl ether
Thread-lock fluid
Sea water Leak tester
: Essentially safe.: Some effects may occur.: Effects will occur.
Amino Methyl amino
Cutting oil
Brake oil additives
Rubber accelerator
Others -
Ester Synthetic oil
Anti-rust additives
Ether Brake oil additives
Ketone
Photographic film
Dry cleaning
Textile industries
Alcohol Antifreeze
Adhesives
Oil -
Aromatic series Coatings
Dry cleaning
Alkaline
Degreasing of metals
Industrial salts
Water-soluble cutting oil
Inorganic salts -
Chlorine solvents
Cleaning liquid for metals
Printing ink
Dilution
Type Chemical name Application examples Material
Acid Acid washing liquid for metals
Selection
Warning
(1) Please consult SMC when the lubricator is used other than for lubricating pneumatic equipment.
(2) Please consult SMC when the lubricator is used at high frequency, such as press machine, as the
internal components may break or operation failure may occur on the outlet side equipment.
(3) If the air consumption is small, oil may not drip. Select a proper size of product according to the
minimum dripping flow rate.
(4) Do not flow from the outlet side (backflow) as it may cause breakage of the internal components.
(5) When the piping is branched on the inlet side, install a check valve on the inlet side of the lubricator
to prevent the lubricant from back flowing.
Installation
Warning
(1) Do not drop or apply impact during transportation or installation. It will cause damage to the product
and result in operation failure.
(2) Do not install in areas of high humidity or high temperature. Operation outside of the product
specification range may cause damage to the product or operation failure, or shorten the product
life.
(3) Connect the product ensuring the direction of "1"(IN) and "2"(OUT) for air direction and indicated
arrow. Incorrect connections may cause malfunction.
(4) Install with adequate space for maintenance beneath the product. Refer to section [12.
Dimensions] (P 33) for necessary space.
(5) Install the lubricator vertically so that the bowl is downward. It cannot be used in horizontal or
upward direction.
Piping
Warning
(1) Before piping is connected, it should be thoroughly blown out with air (flushing) or washed to
remove chips, cutting oil and solid foreign material from inside the pipe. Contamination of piping
may cause damage or malfunction.
(2) When screwing together pipes and fittings, etc., be certain that chips from the pipe threads and
sealant do not get inside the pipe. When a sealant tape is used, leave 1.5 to 2 thread ridges
exposed at the end of the threads.
(3) Connect piping/fittings using the recommended torque while holding the female thread side tightly.
Insufficient tightening torque leads to cause of loosening or sealing failure, and excessive
tightening torque leads to cause of breakage of screws. Tightening without holding female thread
applies an excessive force to the piping bracket directly, leading to breakage.
Recommended tightening torque Unit: N m
Thread size 1/8 1/4 3/8 1/2 3/4 1
Torque 7 to 9 12 to 14 22 to 24 28 to 30 28 to 30 36 to 38
(4) Before using an SMC fitting and S coupler, please refer to "Tightening the threaded portion of the
connection thread" of the Fittings & Tubing Precautions.
(5) Do not apply torsion or bending moment other than the weight of the product itself. External piping
needs to be supported separately as it may cause breakage. Non-flexible piping like steel tube is
susceptible to excessive moment load or vibration. Insert flexible tubes to prevent this.
(6) The cylinder volume should be larger than the piping volume between the solenoid valve and
cylinder. If the cylinder volume is smaller, operation oil may not be fed to the cylinder.
Caution
(1) Avoid rising piping and piping branches on the outlet piping. Otherwise, lubricating failure may
occur.
-5-
Air Source
Warning
(1) Use clean air. Do not use compressed air containing chemicals, organic solvent, synthetic oil or
corrosive gas as it may be cause of breakage of components or operation failure.
(2) Air containing too much moisture may cause malfunction. Install an air drier or aftercooler before
the lubricator.
Maintenance
Warning
(1) Release the pressure in the product to the atmosphere when replacing parts or removing piping.
(2) Maintenance and checks should be done by following the procedure in this operation manual.
Incorrect handling of the product may cause breakage or operation failure of the equipment or
device.
(3) Perform periodical check to find cracks, flaws or other deterioration on resin bowl. If any of these
appear, replace with a new or metal bowl. Otherwise, breakage may occur. Investigate and/or
review the operating conditions if necessary.
(4) Check for dirt in resin bowl periodically. If any dirt is seen, replace with new bowl. If removing dirt by
washing the resin bowl, never use washing material other than neutral detergent. Otherwise, the
bowl is damaged.
(5) Open and close the drain cock manually. The use of tools can result in damage to the product.
(6) Use class 1 turbine oil (with no additives) ISO VG32. Using other lubricant can cause damage to
devices and result in malfunction.
(7) Adjustment of the oil regulating valve should be carried out manually, the use of tools etc. can
result in damage to the unit. Refer to section [8. Operation and Adjustment] (P16-19) for
adjustment of the amount of oil.
(8) AL20-D cannot replenish lubricant while being pressurized. Before lubrication, exhaust the inlet
pressure and make sure that there is no pressure in the bowl. Refer to section [8. Operation and
Adjustment] (P16-19) for the oil supply method.
(9) Loosen the lubrication plug and release the pressure in the bowl before lubricating using AL30-D,
AL40-D, AL50-D or AL60-D. As air containing oil may come out, be sure to wear protective glasses
when lubricating. Refer to section [8. Operation and Adjustment] (P16-19) for the oil supply
method.
Caution
(1) Check the dripping amount once a day. Drip failure can cause damage to the components that
need lubrication.
(2) Use clean oil. Otherwise, it may cause dripping failure or clogging.
(3) The lubrication amount should be less than the upper limit of oil level of the bowl.
(4) Discharge drain periodically so that the drain is not accumulated beyond the upper limit of the drain
level of the bowl. If a large amount of drain enters lubricator, it may cause dripping failure.
-6-
2. Application
3. Standard Specifications
-7-
This product aims at lubricating air-driven equipment and solenoid operated directional control valves
and supplying oil into compressed air.
Model AL20-D AL30-D AL40-D AL40-06-D AL50-D AL60-D
Port size 1/8, 1/4 1/4, 3/8 1/4, 3/8, 1/2 3/4 3/4, 1 1
Fluid
Ambient and fluid temperature
Proof pressure
Max. operating pressure
Min. dripping flow rate Note 1) 15 L/min (ANR) Port size 1/4: 30 L/min(ANR)
Port size 3/8: 40 L/min(ANR)
Port size 1/4: 30 L/min(ANR)
Port size 3/8: 40 L/min(ANR)
Port size 1/2: 50 L/min(ANR)
50 L/min(ANR) 190 L/min(ANR) 220 L/min(ANR)
Oil capacity 25 cm3 55 cm3
Recommended lubricant
Bowl material
Bowl guard Semi-standard (Steel)
Weight 0.10 kg 0.18 kg 0.37 kg 0.41 kg 0.92 kg 0.99 kg
Air
-5 to 60 oC (with no freezing)
1.5 MPa
- For a circuit that repeatedly turns ON and OFF on the outlet side, make the adjustment so that the average air consumption per minute becomes equal to
the minimum dripping flowrate or more.
Note 1) - The flow rate is 5 drops/min under the following conditions: Inlet pressure of 0.5 MPa; Class 1 turbine oil (ISO VG32); Temperature at 20oC; Oil adjustment valve
fully open.
1.0 MPa
135 cm3
Class 1 turbine oil (ISO VG32)
Polycarbonate
Standard (Polycarbonate)
4. How to Order
AL - - - D
-8-
30 03 BE
Note 1) Semi-standard: Select one each for a to d. Note 2) : For NPT thread type only.
20 30 40 50 60
Nil N F 01
02
03
04
06
10 Nil Without mounting option B With bracket Nil Polycarbonate bowl 2 Metal bowl 6 Nylon bowl 8 Metal bowl with level gauge C With bowl guard
6C With bowl guard (Nylon bowl)
Nil Without drain cock 3 With drain cock
3 Drain cock with barb fitting Nil Flow direction: Left to right R Flow direction: Right to left Nil Pressure unit: MPa Temp. unit: oC Z Pressure unit: psi Temp. unit: oF Note 2) Note 2) Note 2) Note 2) Note 2)
d Pressure unit
Temp. unit
Option (Mounting)
S e m
i- s ta
n d a rd
a Bowl
b
Lubricant
exhaust
port
Thread type
Rc
NPT
G
c Flow
direction
1/8
1/4
3/8
1/2
Body size
Port size
3/4
1
Symbol Description
5. Structural Drawing, Option and Replacement Parts
-9-
Structural drawing / Option / Replacement parts
AL30-D / AL40-D AL50-D / AL60-D
(2)
(3)
(1)
(5)
(4)
(6)
(7)
Option
AL20-D AL30-D AL40-D AL40-06-D AL50-D AL60-D
(1) Bracket assembly Note2) AF24P-070AS AF34P-070AS AF44P-070AS AF49P-070AS
Note 1)
Note 2)
The number in the table and structural drawing is consistent with the number in [10. How to Replace the Components] (P21-30and
[11. Disassembly Drawing] (P31-32).
Assembly of 2 types of bracket and 2 set screws.
DescriptionNo. Note 1) Part No.
AF54P-070AS
AL20-D
(5)
(3)
(6)
(1)
(2)
(4)
(7)
Replacement part
AL20-D AL30-D AL40-D AL40-06-D AL50-D AL60-D
(2) Sight dome assembly Note 2)
(3) Lubrication plug assembly AL24P-060AS AL34P-060AS
Bumper retainer assembly Note 3) AL20P-030AS AL30P-030AS
Bumper seat retainer assembly Note 3) - - AL54P-030AS AL60P-030AS
Bumper AL20P-040S AL30P-040S
Bumper assembly - -
(6) Bowl seal C2SFP-260S C32FP-260S
(7) Bowl assembly
Note 1)
Note 2)
Note 3)
The numbers in the table and structural drawing are consistent with the numbers in [10. How to Replace the Components] (P21-30and
[11. Disassembly Drawing] (P31-32).
For the bumper retainer assembly and bumper seat retainer assembly for the metal bowl with level gauge, add -8 to the end of the product number.
Example: AL30P-030AS-8
Refer to section [6. Bowl Assembly Specifications] (P10-P14).
For nylon type (material: PA), add -6 to the end of the product number. Example: AL20P-080AS-6
Part No.
C42FP-260S
-
AL60P-040AS
(4) -
AL20P-080AS
AL44P-060AS
-AL40P-030AS
(5) AL44P-040S
-
No. Note 1) Description
6. Bowl Assembly Specifications
6-1. Bowl assembly for AL20-D
Semi-standard symbol 6 C 6C
Semi-standard symbol 3 36 3C 36C
Semi-standard symbol
Note 1) Part No. (7) includes Bowl seal (6). Refer to section [11. Disassembly Drawing] (P31).
Note 2) "Z" in Part No. (7) indicates semi-standard specifications. The pressure unit: psi. The temperature unit: o F.
Note 3) Refer to section [4. How to Order] (P8) for option and semi-standard symbols.
-10-
Appearance and
part No.
Appearance and
part No.
2 23
Appearance and
part No.
Semi-standard: - (Standard)
Rc
G
NPT C2SL(-Z)-D
Semi-standard: 6
Rc
G
NPT C2SL-6(Z)-A
C2SL-D
C2SL-6-A
Piping port
thread ty pe (7) Part No.
(7) Part No. Piping port
thread ty pe
Semi-standard: C
Rc
G
NPT C2SL-C(Z)-D
Semi-standard: 6C
Rc
G
NPT C2SL-6C(Z)-A
C2SL-C-D
C2SL-6C-A
Piping port
thread ty pe (7) Part No.
(7) Part No. Piping port
thread ty pe
Semi-standard: 3
Rc
G
NPT C2SL-3(Z)-D
Semi-standard: 36
Rc
G
NPT C2SL-36(Z)-A
C2SL-3-D
C2SL-36-A
(7) Part No.
(7) Part No. Piping port
thread ty pe
Piping port
thread ty pe
Semi-standard: 3C
Rc
G
NPT C2SL-3C(Z)-D
Semi-standard: 36C
Rc
G
NPT C2SL-36C(Z)-A
C2SL-3C-D
(7) Part No.
(7) Part No.
C2SL-36C-A
Piping port
thread ty pe
Piping port
thread ty pe
Semi-standard: 2
Rc
G
NPT C2SL-2(Z)-A
C2SL-2-A
Piping port
thread ty pe (7) Part No.
Semi-standard: 23
Rc
G
NPT C2SL-23(Z)-A
C2SL-23-A
(7) Part No. Piping port
thread ty pe
6-2. Bowl assembly for AL30-D
Semi-standard symbol 6 3 36
Semi-standard symbol 3W 36W
Semi-standard symbol
-11-
Appearance and
part No.
Appearance and
part No.
Appearance and
part No.
2 23
Semi-standard: - (Standard)
Rc
G
NPT C3SL(-Z)-D
Semi-standard: 6
Rc
G
NPT C3SL-6(Z)-A
C3SL-D
(7) Part No.
C3SL-6-A
(7) Part No. Piping port
thread ty pe
Piping port
thread ty pe
Semi-standard: 3
Rc
G
NPT C3SL-3(Z)-D
Semi-standard: 36
Rc
G
NPT C3SL-36(Z)-A
(7) Part No.
(7) Part No.
C3SL-3-D
C3SL-36-A
Piping port
thread ty pe
Piping port
thread ty pe
Semi-standard: 3W
Rc
G
NPT C3SL-3W(Z)-D
Semi-standard: 36W
Rc
G
NPT C3SL-36W(Z)-A
C3SL-36W-A
(7) Part No.
(7) Part No. Piping port
thread ty pe
C3SL-3W-D
Piping port
thread ty pe
Semi-standard: 2
Rc
G
NPT C3SL-2(Z)-A
Piping port
thread ty pe
C3SL-2-A
(7) Part No.
Semi-standard: 23
Rc
G
NPT C3SL-23(Z)-A
C3SL-23-A
Piping port
thread ty pe (7) Part No.
Semi-standard symbol
Note 1) Part No. (7) includes Bowl seal (6). Refer to section [11. Disassembly Drawing] (P31).
Note 2) "Z" in Part No. (7) indicates semi-standard specifications. The pressure unit: psi. The temperature unit: o F.
Note 3) Refer to section [4. How to Order] (P8) for option and semi-standard symbols.
-12-
Appearance and
part No.
8 38
Semi-standard: 8
Rc
G
NPT C3LL-8(Z)-A
C3LL-8-A
Piping port
thread ty pe (7) Part No.
Semi-standard: 38
Rc
G
NPT C3LL-38(Z)-A
(7) Part No.
C3LL-38-A
Piping port
thread ty pe
6-3. Bowl assembly for AL40, 50, 60-D
Semi-standard symbol 6 3 36
Semi-standard symbol 3W 36W
Semi-standard symbol
-13-
Appearance and
part No.
Appearance and
part No.
2 23
Appearance and
part No.
Semi-standard: (Standard)
Rc
G
NPT C4SL(-Z)-D
Semi-standard: 6
Rc
G
NPT C4SL-6(Z)-A
(7) Part No.
C4SL-D
(7) Part No.
C4SL-6-A
Piping port
thread ty pe
Piping port
thread ty pe
Semi-standard: 3
Rc
G
NPT C4SL-3(Z)-D
Semi-standard: 36
Rc
G
NPT C4SL-36(Z)-A
(7) Part No.
(7) Part No.
C4SL-3-D
Piping port
thread ty pe
Piping port
thread ty pe
C4SL-36-A
Semi-standard: 3W
Rc
G
NPT C4SL-3W(Z)-D
Semi-standard: 36W
Rc
G
NPT C4SL-36W(Z)-A
(7) Part No.
C4SL-3W-D
(7) Part No.
C4SL-36W-A
Piping port
thread ty pe
Piping port
thread ty pe
Semi-standard: 2
Rc
G
NPT C4SL-2(Z)-A
(7) Part No. Piping port
thread ty pe
C4SL-2-A
Semi-standard: 23
Rc
G
NPT C4SL-23(Z)-A
Piping port
thread ty pe
C4SL-23-A
(7) Part No.
Semi-standard symbol
Note 1) Part No. (7) includes Bowl seal (6). Refer to section [11. Disassembly Drawing] (P31-32).
Note 2) "Z" in Part No. (7) indicates semi-standard specifications. The pressure unit: psi. The temperature unit: o F.
Note 3) Refer to section [4. How to Order] (P8) for option and semi-standard symbols.
-14-
8 38
Appearance and
part No.
Semi-standard: 8
Rc
G
NPT C4LL-8(Z)-A
(7) Part No.
C4LL-8-A
Piping port
thread ty pe
Semi-standard: 38
Rc
G
NPT C4LL-38(Z)-A
(7) Part No. Piping port
thread ty pe
C4LL-38-A
7. Assembly of Optional Parts
7-1. Bracket
1) Mounting of bracket A
2) Mounting of bracket B
-15-
Insert bracket A from the front of the lubricator so that
the fingers of the bracket A hold the lubricator at the
groove and the bottom of the body.
Fix the bracket B with the set screw (2 pcs.) included
in the package. Refer to the table below for the
tightening torque.
Lubricator
Bracket A
Bracket B
Set screw (2 pcs.)
Groove
Fingers
Bottom of the body
Model Tool Tightening torque
AL20-D
AL30-D
AL40-D
AL50-D
AL60-D
0.75+/-0.2 N m Phillips
screw driver
1.5+/-0.2 N m
8. Operation and Adjustment
8-1. Adjustment of Dripping Amount
-16-
Oil regulating valve
While supplying air, rotate the oil regulating valve to adjust the amount of oil. Rotate the valve in the arrow direction shown in the figure to increase the amount of oil supplied. (The amount of oil decreases when rotated in reverse.) From the fully closed position, three rotations will bring it to the fully opened position. Do not rotate it any further than this. Note that the numbered scale markings are guidelines for adjusting the position, and not indicators of the dripping amount. Furthermore, oil may drip even when the oil regulating valve is at a fully closed position. If dripping is not acceptable, please stop using the lubricator.
8-2. Lubrication
-17-
AL20-D cannot replenish lubricant while being pressurized.
Be sure to release the internal pressure before starting lubrication.
AL20-D
Lubrication plug
Remove the lubrication plug. Tool: Screwdriver (-)
Lubrication
Supply lubricant up to the threaded part (A) of the bowl. Note) If an oil film appears on the lubrication port, oil may overflow. Supply lubricant slowly so that the oil film is not generated.
After supplying lubricant, check the mounting condition of
the lubrication plug O-ring and screw it in gently.
Because of the O-ring seal structure, it is not necessary to screw strongly.
Make sure that no air is
coming out of the gap.
Loosen for approx. 1 turn.
Make sure that no air exists in the bowl by checking the lubrication plug.
Remove the lubrication plug.
A
AL30-D, AL40-D, AL50-D, AL60-D
-18-
AL30-D, AL40-D, AL50-D and AL60-D can replenish lubricant while being pressurized. When supplying
lubricant under pressure, loosen the lubrication plug slowly by approximately one turn to exhaust the air in the
bowl. After confirming that the exhaust is complete, remove the lubrication plug (there is a small leakage even
after the exhaust is complete). There is always a small leakage from the lubrication port. Supply lubricant
slowly up to the oil level limit so that an oil film is not generated.
Supply lubricant until the oil surface comes between the lower and upper limits of the oil level of the bowl. Note) If an oil film appears on the lubrication port, oil may overflow. Supply lubricant slowly so that an oil film is not generated. Air containing oil may come out. Be sure to wear protective glasses when supplying lubricant.
Exhaust internal
pressure from the gap.
Exhaust internal air from the lubrication plug.
Max. oil level
Min. oil level
Lubrication plug
Loosen for approx. 1 turn.
Remove the lubrication plug. Tool: Screwdriver (-)
Remove the lubrication plug.
Lubrication
After supplying lubricant, check the mounting condition of the lubrication plug O-ring and screw it in gently. Because of the O-ring seal structure, it is not necessary to screw strongly.
8-3. Oil Discharge from the Product with Drain Cock
-
-
-19-
Pressurize the inside of the lubricator when discharging oil. Oil will not be discharged properly if not pressurized.
Oil discharge mechanism is different depending on the bowl assembly. Check the bowl assembly and discharge the oil
following the method below.
Rotation type: After discharging the oil, tighten the drain cock to the opposite direction by hand until the seal inside seals
correctly. Use of a tool can damage the product.
Drain cock OPEN
(discharging oil)
PUSH
(discharging oil)
AL20-D: Drain cock (rotation type)
(Polycarbonate bowl / Nylon bowl)
AL30-D/ AL40-D/ AL50-D/ AL60-D: Drain cock / with barb fitting (push type)
(Polycarbonate bowl / Nylon bowl)
Drain cock with barb
fitting
OPEN
(discharging oil)
PUSH
(discharging oil)
AL20-D: Drain cock (push type)
(Metal bowl)
AL30-D/ AL40-D/ AL50-D/ AL60-D: Drain cock (rotation type)
(Metal bowl / Metal bowl with level gauge)
Drain cock
Drain cock
Drain cock
Drain cock
9. Trouble Shooting
Category Failure
Oil does not drip. 1. The product is installed opposite to the
flow direction.
Install the product correctly after confirming
the flow direction. "1 indicates the IN and
"2 indicates the OUT. -
2. Oil level in the bowl is low. Supply lubricant so that the oil surface
appears above the "MIN. OIL LEVEL"
display on the bowl. P17-18
3. The flow rate is insufficient. Supply air more than the minimum dripping
flow rate. If the flow rate cannot be
increased, select the model based on the
minimum dripping flow rate.
P7
4. Bumper is damaged. Replace the bumper.
P28-30
5. Oil regulating valve is closed. While supplying air, open the oil regulating
valve to adjust the dripping amount. Refer
to section [8. Operation and Adjustment]
(P16) for the adjustment of the dripping
amount.
P16
6. Air leakage from the bowl or lubrication
plug.
Replace the bowl seal or lubrication plug
assembly. P18
P21-23
7. Element at the end of the siphon tube is
clogged.
Replace the damper retainer assembly.
P24-27
8. Air leakage from the sight dome. Replace the sight dome assembly.
P28-30
Bubble exists in
an oil droplet.
1. Seal of the siphon tube is damaged. Replace the damper retainer assembly.
P24-27
2. Oil level in the bowl is low. Supply lubricant so that the oil surface
appears above the "MIN. OIL LEVEL"
display on the bowl. P17-18
Air or oil leaks
from the sight
dome.
1. The sight dome or O-ring is damaged. Replace the sight dome assembly.
P28-30
Air leaks from
the lubrication
plug.
2. O-ring is damaged. Replace the lubrication plug assembly.
Refer to section [8-2 Lubrication] of [8.
Operation and Adjustment] for the
replacement of the lubrication plug.
P17-18
Air leaks from
the gap between
the bowl and
body.
3. Bowl seal is damaged. Replace the bowl seal.
Apply grease before replacing the bowl
seal. Note)
P21-23
Air leaks from
the bowl.
4. The bowl is damaged. Replace the bowl assembly.
(If the solvent is considered to be harmful,
replacement to the metal bowl is
recommended)
P21-23
-20-
Refer to sections [8. Operation and Adjustment] (P16-P19), [10. How to Replace the Components] (P21-30) and [11. Disassembly
Drawing] (P31-32). A
ir l e a k a g e
Page for
reference
Note) Fluorine grease is recommended.
Trouble CountermeasurePossible cause
O il
d ro
p le
ts
10. How to Replace the Components
Warning Before replacement, make sure that no pressure remains in the product.
After replacement, confirm that the product satisfies specific functions and no external leakage occurs before operating it.
10-1. Bowl Assembly Replacement
Applicable
model
Work
category Tool Criteria
Disassembly 1) Remove the bowl assembly from the product. If
the bowl assembly is tightened too much to be
removed, use a hook spanner until it can be
loosened by hand.
Spanner specified for SMC
Product No.: 1129129
Work
category Tool Criteria
Assembly 2) Screw the bowl assembly into the product.
Tighten it referring to the specified torque.
Reference
tightening
torque: 2.2 N m
-21-
Procedure
AL20
Procedure
(7) Bowl assembly
Product
(7) Bowl assembly
Product
(6) Bowl seal
Applicable
model
Work
category Tool Criteria
Disassembly 1) Remove the bowl assembly from the product.
While the lock button is held down, rotate the
bowl assembly by approx. 30 degrees so that
the mating marks of the body and bowl
assembly meet each other. Then remove the
bowl assembly by pulling it downward.
Work
category Tool Criteria
Assembly 1) Mount the bowl assembly to the product and
rotate the bowl assembly until the lock button is
locked in position as shown in the figure below.
-22-
Procedure
AL30
AL40
Procedure
Align the mating marks
Lock button
Step 1
Step 2
Mating mark of the bowl assembly
Mating mark of the body
Make sure that the lock button
is locked to the flute of the
product before pressurising it.
Caution Step 2
Step 1
Product
Product
Lock button
Rotate 30 degrees
Pull downward
Rotate 30 degrees
Insert upward
(6) Bowl seal
(7) Bowl assembly
(7) Bowl assembly
Applicable
model
Work
category Tool Criteria
Disassembly 1) Remove the bowl assembly from the product.
While the lock button is held down, rotate the
bowl assembly by approx. 30 degrees so that
the mating marks of the body and bowl
assembly meet each other. Then remove the
bowl assembly by pulling it downward.
Work
category Tool Criteria
Assembly 1) Mount the bowl assembly to the product and
rotate the bowl assembly until the lock button is
locked in position as shown in the figure below.
-23-
Procedure
AL50
AL60
Procedure
(6) Bowl seal
Lock button
Product
(7) Bowl assembly
Align the mating marks
Mating mark of the body
Mating mark of the bowl assembly
Step 1
Step 2
Rotate 30 degrees
Pull downward
Product
Lock button
(7) Bowl assembly
Step 2
Rotate 30 degrees
Step 1
Insert upward
Make sure that the lock button
is locked to the flute of the
product before pressurising it.
Caution
10-2. Bumper Retainer Assembly Replacement
Applicable
model
Work
category Tool Criteria
Disassembly 1) Remove the bowl assembly referring to section [10-1.
Bowl Assembly Replacement] (P21). After removing
the bowl assembly, rotate the oil regulating valve by
hand to close the valve fully before disassembly.
Remove the bumper retainer assembly by hooking the
round nose pliers to the holes and turning them in the
direction of the figure.
Round nose pliers
(125 or 150)
Work
category Tool Criteria
Assembly 2) Screw the damper retainer assembly into the product.
After assembling, mount the bowl assembly referring
to section [10-1. Bowl Assembly Replacement] (P21). Round nose pliers
(125 or 150)
-24-
Procedure
AL20
Procedure
Product
Round nose plier hole
Product
(4) Bumper retainer assembly
(4) Bumper retainer assemblyOil regulating valve
Tightening torque [N m]
Model Torque
AL20-D 1.4+/-0.1
Round nose plier hole
Applicable
model
Work
category Tool Criteria
Disassembly 1) Remove the bowl assembly referring to section [10-1.
Bowl Assembly Replacement] (P22). After removing
the bowl assembly, rotate the oil regulating valve by
hand to close the valve fully before disassembly.
Remove the four screws, and then remove the bumper
retainer assembly. There is an O-ring between the
bumper retainer assembly and the holder assembly. Be
careful not to miss it.
Phillips
screwdriver
Work
category Tool Criteria
Assembly 2) Ensure that the O-ring is mounted correctly. Mate the
holders and the positioning holes on the bumper
retainer assembly. Tighten the bumper retainer
assembly with 4 screws as in the figure below. After
assembling, mount the bowl assembly referring to
section [10-1. Bowl Assembly Replacement] (P22).
Phillips
screwdriver
-25-
Procedure
AL30
AL40
Procedure
Product
Product
O-ring
Positioning holes
2 places
Holder
(4) Bumper retainer
assembly
(4) Bumper retainer assembly
Oil regulating valve
Screw (4 pcs. Tool: Phillips screwdriver
Screw (4 pcs. Tool: Phillips screwdriver
Tightening torque [N m]
Model Torque
AL30-D 0.4+/-0.1
AL40-D 0.7+/-0.2
Applicable
model
Work
category Tool Criteria
Disassembly 1) Remove the bowl assembly referring to section [10-1.
Bowl Assembly Replacement] (P23). After removing
the bowl assembly, rotate the oil regulating valve by
hand to close the valve fully before disassembly.
Remove 4 screws. Remove the housing and O-ring.
Hexagon wrench
(Nominal size: 5)
Work
category Tool Criteria
Disassembly 2) Remove the four screws and then remove the bumper
retainer. There is an O-ring between the bumper
retainer assembly and the holder assembly. Be careful
not to miss it.
Phillips
screwdriver
-26-
Procedure
AL50
AL60
Procedure
(4) Retainer assembly
Oil regulating valve
Screw (4 pcs. Tool: Hexagon wrench
(Nominal size: 5)
Housing
Screws (4 pcs.)
O-ring
Product
Product
Screw (4 pcs. Tool: Phillips screwdriver
Screws (4 pcs.)
O-ring
Holder
Applicable
model
Work
category Tool Criteria
Assembly 1) Ensure that the O-ring is mounted correctly. Match the
position of the oil passage tube on the retainer
assembly with the protruded guide around the oil
passage on the holder. Mount the retainer assembly to
the holder in the direction shown in the drawing below
and tighten it with 4 screws.
Phillips
screwdriver
Work
category Tool Criteria
Assembly 2) Mount the O-ring and housing to the body. Assemble
them with 4 screws. After assembling, mount the bowl
assembly referring to section [10-1. Bowl Assembly
Replacement] (P23).
Hexagon wrench
(Nominal size: 5)
-27-
Procedure
AL50
AL60
Procedure
Screw (4 pcs. Tool: Phillips screwdriver
Product
O-ringHolder
Screw (4 pcs. Tool: Hexagon wrench
(Nominal size: 5)
Housing
O-ring
Product
Oil passage tube
(4) Retainer assembly
Protruded guide around the oil passage
Tightening torque [N m]
Model Torque
AL50-D
AL60-D 1.4+/-0.1
Tightening torque [N m]
Model Torque
AL50-D
AL60-D 3.5+/-0.3
10-3. Bumper and Sight Dome Assembly Replacement
Applicable
model
Work
category Tool Criteria
Disassembly 1) Remove the bumper retainer assembly referring to section [10-2.
Bumper Retainer Assembly Replacement] (P24). After removing the
bumper retainer assembly, remove the holder assembly by pushing
the oil regulating value (sight dome assembly) into the body.
Separate the holder assembly and sight dome assembly by hand.
There is a steel ball inside. Please take care not to miss it.
Work
category Tool Criteria
Assembly 2) Assemble the spacer, sight dome assembly, steel ball and holder.
Place the steel ball in the oil inlet of the holder assembly and
assemble the sight dome assembly by aligning the zero point
alignment mark of the sight dome assembly with the zero point
alignment mark of the holder assembly. Next, install the bumper in
the holder assembly. Assemble them in a direction that matches the
shape of the bumper and the protrusion of the holder assembly.
Lastly, assemble the holder assembly to the body. When the holder
assembly and body are assembled with correct positioning, the end
surfaces of the holder and body become flat. After assembling the O-
ring, assemble the bumper retainer assembly referring to section [10-
2. Bumper Retainer Assembly Replacement] (P24).
-28-
Procedure
AL20
Procedure
Insert upward
Oil regulating valve
Product
Product
Holder assembly
Positioning groove (different width)
Positioning protrusion (different width)
Steel ball
(2) Sight dome
assembly
Holder assembly
(5) Bumper
O-ring
Spacer
Zero point alignment mark
Zero point
alignment
mark
Spacer
Sight dome assembly
Holder
Joint
Bumper
Steel ball
O-ring
I N
Holder assembly
Applicable
model
Work
category Tool Criteria
Disassembly 1) Remove the bumper retainer assembly referring to section [10-
2. Bumper Retainer Assembly Replacement] (P25).
Remove the sight dome assembly by pushing it in the arrow
direction. Separate the holder assembly and sight dome
assembly by hand. Remove the bumper using tweezers so that
it is not damaged.
Tweezers
Work
category Tool Criteria
Assembly 2) Assemble the spacer, sight dome assembly and holder.
Assemble the sight dome assembly by aligning the zero point
alignment mark of the sight dome assembly with the zero point
alignment mark of the holder assembly. Next, install the
bumper in the holder assembly. Assemble them in a direction
that matches the shape of the bumper and the concave of the
holder assembly. Lastly, assemble the holder assembly to the
body. When the holder assembly and body are assembled with
correct positioning, the end surfaces of the holder and body
become flat. After assembling, mount the bumper retainer
assembly referring to section [10-2. Bumper Retainer
Assembly Replacement] (P25).
-29-
Procedure
AL30
AL40
Procedure
(5) Bumper
Holder
(2) Sight dome assembly
Spacer
Push upward
Holder assembly
Product
Joint
Product
Positioning protrusion
Positioning concave
I N
Spacer (5) Bumper
Holder assembly
(2) Sight
dome
assembly
Holder assembly
Holder
Zero point
alignment
mark
Zero point alignment mark
Applicable
model
Work
category Tool Criteria
Disassembly 1) Remove the retainer assembly referring to section 10-2.
Retainer Assembly Replacement] (P26 to 27).
Remove the sight dome assembly by pushing it in the
arrow direction. Separate the holder assembly and sight
dome assembly by hand. Remove the bumper assembly
using tweezers so that it is not damaged.
Tweezers
Work
category Tool Criteria
Assembly 2) Assemble the spacer, sight dome assembly and holder.
Assemble the sight dome assembly by aligning the zero
point alignment mark of the sight dome assembly with the
zero point alignment mark of the holder assembly. Next,
install the bumper assembly in the holder assembly.
Assemble the bumper assembly and holder assembly
when their positioning hole match. Be careful with the
side of the protrusion. Lastly, assemble the holder
assembly and O-ring to the body. When the holder
assembly and body are assembled with correct
positioning, the end surfaces of the holder and body
become flat. After assembling, mount the retainer
assembly referring to section 10-2. Retainer Assembly
Replacement] (P26 to 27).
-30-
Procedure
AL50
AL60
Procedure
I N
Holder assembly
Product
Push upward
(5) Bumper assembly
Holder
(2) Sight dome assembly
Spacer
O-ring
Holder
Spacer
Zero point alignment mark
(5) Bumper assembly
Holder assembly
Zero point
alignment
mark
Product
Positioning protrusion
Positioning concave
Holder assembly
O-ring
Positioning hole
Positioning hole (protruded)
(2) Sight
dome
assembly
11. Disassembly Drawing
-31-
Body
I N
OUT
AL30-D, AL40-DAL20-D
Body
I N
OUT
(4) Bumper retainer assembly
(5) Bumper
(6) Bowl seal
Spacer
Holder
(7) Bowl assembly
(2) Sight dome assembly
O-ring
(3) Lubrication plug assembly
cross recessed round head screws
(3) Lubrication plug assembly
(7) Bowl assembly
(6) Bowl seal
(4) Bumper retainer assembly
(5) Bumper
Holder
(2) Sight dome assembly
Spacer
-32-
I N
OUT
AL50-D, AL60-D
Body
cross recessed round head screws
(3) Lubrication plug assembly
(6) Bowl seal
(5) Bumper assembly
Holder
(2) Sight dome assembly
Spacer
Housing
O-ring
O-ring
(7) Bowl assembly
(4) Retainer assembly
Hexagon socket
head cap screws
12Dimensions
-33-
(Port size)
C le
a ra
n c e f
o r
m a in
te n a n c e
Standard specifications Bracket mount
P A B C D E G J M N Q R S T U V
AL20-D 1/8, 1/4 40 79.3 35.9 21 60 21 30 27 22 5.4 8.4 60 2.3 28
AL30-D 1/4, 3/8 53 104.3 38.1 26.5 30 80 26.5 41 35 25 6.5 13 71 2.3 32
AL40-D 1/4, 3/8, 1/2 70 136.1 44 35.5 38.4 110 35.5 50 52 30 8.5 12.5 88 2.3 39
AL40-06-D 3/4 75 138.1 44 35.5 38.4 110 35.5 50 52 34 8.5 12.5 88 2.3 43
AL50-D 3/4, 1 90 209.1 48 45 110 45 70 66 40.5 11 13 113 3.2 52.5
AL60-D 1 95 223.1 48 45 110 45 70 66 40.5 11 13 113 3.2 52.5
Model
Semi-standard bowl
Semi-standard specifications
With drain
cock
With barb
fitting
Without
drain cock
With drain
cock
Without
drain cock
With drain
cock
B B B B B B
AL20-D 87.6 84.5 87.4 AL30-D 115.4 123.9 104.3 117.8 124.3 137.8
AL40-D 147.1 155.6 136 149.5 156.1 169.5
AL40-06-D 149.1 157.6 138 151.5 158.1 171.5
AL50-D 220.1 228.6 209 222.5 229 242.5
AL60-D 234.1 242.6 223 236.5 243 256.5
Metal bowl
with level gauge PC/PA bowl
Model
Metal bowl
Revision history
40-06,50,60 size added.
Dec. 2020.
4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021 JAPAN Tel: + 81 3 5207 8249 Fax: +81 3 5298 5362 URL https://www.smcworld.com Note: Specifications are subject to change
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