FORM 402911 PAGE 5
BEFORECONNECTING
AIRMOTOR TO AIR LINE
LINCOLN SERIES III AIRMOTORS are fully
pneumatic and require a minimum specified
size of air supply hose for proper operation.
Check specification for minimum ID. of the air
supply hose and select corresponding sizes
of air controls and accessories for non-
restrictive air flow. Lincoln filter, regulator
with gauge and lubricators are available as
combination units (FRL).
For 3/8 air line - Model 85387-6
For 1/2 air line - Model 85387-8
For 3/4 air line - Model 85387-12
If quick disconnect coupling should be used,
install supplied coupler to insure proper
airmotor operation.
NOTE: Whenever flammable materials are
pumped, ground Airmotor according to
Local Codes.
OPERATING PRECAUTIONS
Use Lincoln replacement parts to assure
compatible pressure rating.
Heed ALL warnings.
DO NOT OPERATE Airmotor in excess of
recommended pressure range.
Disconnect air line and relieve (vent)
pressure when Airmotor sits idle for long
periods of time and before servicing.
SERVICE AND DISASSEMBLY
PROCEDURE
ATTACHING AIRMOTOR TO
PUMPTUBE
1.Tightly attach the tie rods(ltem 41) to
the Airmotor lower casting. Use short
threaded end of tie rods.
2.Mount Airmotor on top of pump tube
outlet and tightly connect pump tube
coupling nut to Airmotor Piston Rod
(Item 5).
3.Hand tighten tie rods to the pump tube
with four nuts (Item 42) supplied with
Airmotor.
4.Connect air supply and slowly cycle
pump several times using only enough
air pressure to operate pump without
stalling.
5. STOP pump on "UP" stroke and tighten
four nuts to securely fasten Airmotor to
pump tube.
TOOLS REQUIRED
1. 7/64 (.109) Hex Wrench
2. 5/32 (.156) Hex Wrench
3. 3/16 (.189) Hex Wrench
4. 1/8 (.125) Hex Wrench
5. 3/4 (.750) Open End Wrench
(for 6 Airmotor)
6. 15/16 (.937) Open End Wrench
(for 8 Airmotor)
7. 1/2 (.500) Open End Wrench
(for 4-1/4 and 3 Airmotor)
8. 1-1/8 (1.125) Open End Wrench
(for 10 Airmotor)
9. 1/2" (.500) Box End Wrench
10. Pliers
11. 0-100 in. lb. Torque Wrench
The modular design of the Airmotor and
accessibility of vital operation parts make
service available without taking Airmotor out
of line or without complete disassembly.
Power Valve
1. Remove four screws (Items 27 & 34)
with 3/16 hex wrench
(2 on each side).
2.Remove End Caps (Items 10 & 14).
3. Push out Valve Spool (Item 13).
4.Remove Spool Bumpers (Item 9)
(One from each end).
5.Remove O Ring (Item 11 )(One from
each end of valve body).
6.Remove four Screws (Item 37) with
3/16 hex wrench and lift valve body (Item
12).
7.Remove Gasket (Item 15) to complete
valve disassembly.
8.To REASSEMBLE, REVERSE procedure.
Cylinder Tube and Muffler
1. Remove Air Brakes Subassembly (See
previous instructions).
2. Remove two Screws (Item 30) with
3/16 hex wrench and pull off Mufler
(Item 29).
3. Remove Gasket (Items 28).
4. Remove four Nuts (Item 26) with open
end wrench.
5. Lift upward and remove Upper Casting
(Item 8).
6. Remove four Tie Rods (Item 25).
7. Remove Air Tube (Item 7).
8. Lift upward and remove Cylinder Tube
(Item 6).
9. Remove Piston and Piston Rod (Item 5).
10. Remove four Connecting Rods (Item
41) with open end wrench.
11. To REASSEMBLE,REVERSE
procedure.
NOTE: Align two holes on the the Cylinder Tube (Item 6)
with two holes on the Air Brake®Subassembly before
tightening Tie Rods (Item 25) so that proper seal with
"0"-rings is acheived.
Air Brake®Subassembly
1. Remove four Screws (Item 23)(two on
each end) with 3/16" hex wrench and
pull out Air Brake® Subassembly.
2. Remove two Screws (Item 39), with
7/64" hex wrench and lift out Valve
Body (Item 17).
3. Remove four Screws (Item 32)(two on
each side of Air Brake®) with 1/8" hex
wrench and remove Signal Valve Caps
(Item 31) and Air Signal Valves (Item20).
4. Remove four Screws (Item 24) with
3/16 hex wrench and lift off Upper
Body (Item 50) and Upper Gasket
(Item 51).
5. Remove Gasket Plate (Item 52) and
Lower Gasket (Item 53).
6. Remove Air Filter (Item 40) in two
locations.
7. Remove Pump Sleeve (Item 56) and
Piston (Item 55).
8. Remove Diaphragm Seal and Retainer,
Diaphragm, Spring and Stop Valve Assy.
(Items 61, 57, 58, 59 & 60).
9. Remove cover from Bleed Assembly
(Item 67) and remove lock screw. Using
1/2 box end wrench, remove bleed
valve bolt and remaining parts.
10. Remove Trip Indicator (Item 48).
11.ToREASSEMBLE, REVERSE
procedure, insuring that:
a. Upper and Lower Gaskets (Items 51
& 53) are well oiled with 10 wt. motor oil.
b. Assembly Screws (Items 23 & 24) are
torqued to 65 to 70 in. lbs.
