IR Ingersoll Rand 6LH1A1, Руководство по эксплуатации и обслуживанию

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20
MAINTENANCE SECTION
Disassembly of the Motor and Throttle
1. Using a pin punch and hammer, drive the Throttle
Lever Pin (4) out of the Rear Muffler (12) to release
the Throttle Lever (3).
2. Grasp the splined end of the Rotor (23) in
leather–covered or copper–covered vise jaws and pull
the assembled motor from the Motor Housing (1).
3. Remove the Rear End Plate Gasket (18) from the
Motor Housing.
4. Using a wrench, unscrew and remove the Rear Rotor
Bearing Retaining Nut (19).
5. Remove the Rotor from the vise and remove the
Bearing Thrust Washer (20), Rear End Plate (22),
Cylinder (25) and Vanes (24).
6. Check the Front Rotor Bearing (28) for damage or
roughness. If replacement is necessary, support the
Front End Plate (26) between two blocks of wood on
the table of an arbor press. Press the Rotor from the
Front Rotor Bearing. Using a flat face punch on the
inner ring, tap the Bearing out of the End Plate.
7. Check the Rear Rotor Bearing (21) for damage or
roughness. If replacement is necessary, use a flat face
punch on the inner ring and tap the Bearing out of the
End Plate.
8. Being careful not to distort the Housing, grasp the
flats on the Motor Housing in leather–covered or
copper–covered vise jaws with the inlet upward.
9. Using a wrench on the flats, unscrew and remove the
Inlet Bushing (16) and the Air Strainer Screen (17).
10. Remove the Throttle Valve Spring (9).
11. Remove the Rear Muffler (12), Inlet Bushing
Spacer (15), two Exhaust Silencers (14), Muffler
Element (13), Exhaust Deflector Seal (11) and the
Silencer Seal Ring (10).
12. Lift out the Throttle Valve (8) and Throttle Plunger
Assembly (5).
13. Remove the Throttle Plunger Seal (6) from the
Throttle Plunger.
Only remove the Throttle Valve Seat (7) when
replacing it or when the Throttle Plunger
Bushing (2) must be replaced.
14. To remove the Throttle Valve Seat, insert a wire
hook through the central hole of the Seat and hooking
the underside of the Seat; pull the Seat out of the
Motor Housing.
15. Before removing the Throttle Plunger Bushing (2) all
seals and components must be removed from the
Motor Housing. To remove the Throttle Plunger
Bushing, proceed as follows:
a. Grasp the rear hub of the Motor Housing in
leather–covered or copper–covered vise jaws with
the Throttle Plunger Bushing upward.
Apply enough heat to warm the Housing, but
not enough heat to distort it.
b. Using a torch, apply heat to the Motor Housing
around the Bushing.
c. Thread a 5/16”–18 tap into the Bushing and pull
the Bushing out of the Housing with the tap.
ASSEMBLY
General Instructions
1. Always press on the inner ring of a ball–type
bearing when installing the bearing on a shaft.
2. Always press on the outer ring of a ball–type
bearing when pressing the bearing into a bearing
recess.
3. Unless otherwise noted, always press on the stamped
end of a needle bearing when installing the needle
bearing in a recess.
4. Whenever grasping a tool or part in a vise, always
use leather–covered or copper–covered vise jaws.
Take extra care with threaded parts and housings.
5. Always clean every part and wipe every part with a
thin film of oil before installation.
6. Apply a film of O–ring lubricant to all O–rings
before final assembly.
7. Check every bearing for roughness. If an open
bearing must be cleaned, wash it thoroughly in a
suitable cleaning solution and dry with a clean cloth.
Sealed or shielded bearing should never be
cleaned. Work grease thoroughly into every open
bearing before installation.
Assmbly of the Motor and Throttle
1. If the Throttle Plunger Bushing (2) was removed,
proceed as follows:
a. Insert the Throttle Plunger Bushing into the Motor
Housing (1) to a depth approximately one–half the
length of the Bushing.
b. Put a few drops of a quality sealant in the
counterbore surrounding the outside diameter of
the Bushing.
c. Rotate the Bushing approximately 180
°
to make
certain the sealant makes complete contact around
the outside of the Bushing.
d. Push the Bushing into the Housing until it bottoms
against the shoulder inside the Housing.
e. Allow the sealant to cure for eight hours at room
temperature.