Ingersoll Rand 88S Serie Manual De Operación Y Mantenimiento página 17

11. If the Front Rotor Bearing (28) is to be replaced, press
it from the Arbor.
12. Insert the Controller into the No. 99V60–A952
Bearing Clamp and tighten the nut on the fixture.
Insert the No. 99V60–951 Seal Pressing Tool in the
center and press off the Controller. Release the clamp.
13. Place the Cylinder Case in leather–covered or
copper–covered vise jaws to remove the Inlet
Bushing (4), Inlet Bushing Screen (5) and the Throttle
Valve Spring (6). The Bushing has an interference
thread and is tightly fit.
14. Drive out the Throttle Lever Pin (13) to release the
Lever Assembly (14).
15. Using a 3/32" hex wrench, reach inside the handle and
remove the Valve Seat Screw (12) from the Throttle
Valve Seat Support Assembly (7).
16. Thread a No. 8–32 screw about 5" (127 mm) long
into the throttle valve seat support in place of the
removed valve seat screw. A piece of 5/32" welding
rod can be threaded on one end to serve the same
purpose.
17. Grasp the protruding end of the screw in a vise, and
while tapping lightly on the housing or handle with a
plastic hammer, pull on the housing or handle to
withdraw the throttle parts.
18. The Air Strainer Screen (8) can now be removed and
cleaned.
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. Whenever grasping a tool or part in a vise, always use
leather–covered or copper–covered vise jaws. Take
extra care not to damage threads or distort housings.
4. Always clean every part and wipe every part with a
thin film of oil before installation.
5. Apply a film of O–ring lubricant to all O–rings before
final assembly.
6. Check every bearing for roughness. If an open bearing
must be cleaned, wash it thoroughly in a clean,
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.
MAINTENANCE SECTION
Assembly of the Throttle and Inlet
1. Assemble the Valve Seat Support parts (7, 8, 9, 10, 11
2. Insert the assembly into the handle, large diameter
3. Apply O–ring lubricant to the Seals (3). Fit the seals to
4. Assemble the Locking Lever Assembly (14) as
5. Align the holes in the Lever Assembly with the
6. Insert the Throttle Valve Spring (6) small end first.
7. Clean the face of the Inlet Bushing and the Inlet
Assembly of the Motor
1. Using an arbor press against the inner race of the
2. Inspect the Front End Plate (29) for nicks or burrs. If
17
and 12). Tighten the Valve Seat Screw to 12 in–lb
(1.4 Nm) torque.
first. Position a punch against the flat of the screw
head and tap it with a hammer until the assembly is
firmly seated.
the Throttle Valve (2) and push the assembly, small
diameter first, into the handle until it seats firmly.
illustrated below:
Locking Lever Assembly
slots in the Cylinder Case. With a soft face hammer,
tap the Throttle Lever Pin (13) through the Lever
Assembly. File off any sharp edges. Operate the
mechanism internally by hand to assure operation.
Bushing Screen (5) with a suitable cleaning solution
and allow to air dry. Insert the parts into the live air
handle. Grasping the flats of the Cylinder Case with a
wrench, tighten to 35 to 45 ft–lb (47 to 61 Nm) torque.
bearing, install the Front Rotor Bearing (28) onto the
Arbor (27).
replacement is necessary, wipe the part with oil. Press
the Front Rotor Bearing into the Front End Plate.
(Dwg. TPD563)