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Always wear eye protection when operating or
performing maintenance on this tool.
Always turn off the air supply and disconnect the air
supply hose before installing, removing or adjusting
any accessory on this tool, or before performing any
maintenance on this tool.
LUBRICATION
Whenever a Series 88V Grinder is disassembled for
overhaul or replacement of parts, lubricate as follows:
1. Inject about 1.5 cc of Ingersoll–Rand No. 50 Oil into
the Inlet Bushing (4) after assembly.
2. If the Grinder is used in an extremely dirty
environment, once each week or after each forty
hours of operation, pour a liberal amount of a
suitable cleaning solution into the slots in the handle.
Work the throttle lever vigorously to wash the
cleaning solution around, and then pour the solution
and accumulated dirt from the handle. Repeat this
process until the cleaning solution is clean when it
comes out of the handle. Immediately after flushing
with the cleaning solution, inject a liberal amount of
Ingersoll–Rand No. 50 Oil in the slots and, again,
work the throttle lever vigorously to lubricate the
cleaned parts.
DISASSEMBLY
General Instructions
1. Do not disassemble the tool any further than
necessary to replace or repair damaged parts.
2. Whenever grasping a tool or part in a vise, always use
leather–covered or copper–covered vise jaws to
protect the surface of the part and help prevent
distortion. This is particularly true of threaded
members and housings.
3. Do not remove any part which is a press fit in or on a
subassembly unless the removal of that part is
necessary for repairs or replacement.
MAINTENANCE SECTION
4. Do not disassemble the tool unless you have a
Disassembly of the Motor and Throttle
1. Grasp the flats of the live air handle in
2. Remove the Cylinder Case Screws (46), the Lock
3. Remove the Grinder from the vise.
4. Grasp the Arbor (27) in the vise. Lift off the Cylinder
5. Remove the Controller Ring (40) and unscrew the
6. Lift off the Rotor Bearing Seal (38) and the Rear End
7. Lift off the Cylinder (33).
8. Remove the Vanes (32).
9. Withdraw the Rotor (31) and lift out the Rotor
10. Remove the arbor and end plate assembly from the
11. If the Front Rotor Bearing (28) is to be replaced, press
12. Insert the Controller into the No. 99V60–A952
17
complete set of new gaskets and O–rings for
replacement.
leather–covered or copper–covered vise jaws, Guard
up.
Washers (45), the Guard, Cylinder Case Gasket (42)
and two Motor Clamp Washers (41).
Case to expose the motor.
Use only the special No. 88V60–950 Controller
Wrench for removing the Controller Assembly
(39). Do not attempt to disassemble the Controller.
It is available only as a unit and is guaranteed for
the life of the tool if it is not abused.
Controller Assembly which has a left–hand thread
that requires a clockwise rotation for removal.
Plate (35).
Key (30).
vise. Grasp the End Plate (29) in one hand and tap
the small diameter end of the arbor with a soft
hammer to remove the End Plate.
it from the arbor.
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.
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