16575128_ed2
5
Press the Bevel Pinion Bearing (39) over the threaded end and
onto the Bevel Pinion Driver (31).
NOTICE
If the Pinion (40) needs to be replaced, replace both the
Pinion and the Bevel Gear. They are a matched set and
cannot be matched with other Bevel Gears.
b. Check the Pinion for worn or broken teeth.
c. Screw the Pinion onto the Bevel Pinion Driver and tighten to
14 to 19 ft-lb (19 to 26 Nm) torque.d.
Coat the inner surface of the Arbor Coupling (42), the spline
of the Rotor (26) and the spline of the Bevel Pinion Driver with
3 to 4 cc of
Ingersoll Rand
No. 68 Grease.
Do not substitute
any other grease.
e. Install the Arbor Coupling onto the spline end of the Bevel
Pinion Driver.
f. Install the Thrust Spacer (38) over the Arbor Coupling (42) until
it is against the Bevel Pinion Bearing.
2. Grasp the Angle Arbor Housing (43) horizontally in leather-
covered or copper-covered vise jaws.
3. Slide the assembled Bevel Pinion Driver into the Angle Arbor
Housing.
4.
For Model 77A45W109, 77A60W107, 77A60P107, 77A60P109
or 77A75P107,
next install the Motor Spacer (41).
NOTICE
Make sure the Throttle Lever Assembly (17) mounting boss
on the Throttle Handle (1) aligns with the I-R logo on the
exterior of the Angle Arbor Housing.
NOTICE
For Model 77A25F107, make sure the spline on the Rotor (26)
properly engages the spline in the Rotor Pinion (35).
5. Slide the assembled Throttle Handle into the Angle Arbor
Housing.
6. Clean the Coupling Nut (21) threads and carefully apply a uniform
coat of Vibra-Tite® * * VC3 No. 205 to at least the first three
threads. Allow the Vibra-Tite to cure for ten to twenty minutes
before assembly.
CAUTION
Do not exceed 52.5 ft-lb (71.2 Nm) torque. The motor may be
damaged if this torque is exceeded.
7. Using the No. 77H-281 Coupling Nut Wrench, install the Coupling
Nut and tighten it between 48 to 52.5 ft-lb (64 to 71 Nm) torque.
Assembly of the Throttle Lever and Inlet
Locking Lever Assembly
(Dwg. TPD662)
Assemble the Throttle Lever Assembly (17) as illustrated.
Align the holes in the Throttle Lever Assembly (17) with the slots
in the Throttle Handle. Using a soft hammer, tap the Throttle Lever
Pin (16) into the Throttle Lever Assembly until it slightly protrudes
from the opposite end. File off any sharp edges. Operate the
a.
b.
1.
2.
mechanism to assure operation.
Grasp the flats of the Throttle Handle Assembly (1) in leather-
covered or copper-covered vise jaws, air inlet up.
Insert the Throttle Valve Spring (6), small end first, into the Handle.
** Registered trademark of ND Industries.
NOTICE
The Inlet Bushing (4) has an interference thread. Apply a light
film of oil to the threads before assembly.
5. Clean the face of Inlet Bushing (4) and the Inlet Bushing
Screen (5) with a suitable cleaning solution and allow to dry.
Insert the parts into the end of the Throttle Handle. Tighten the
Inlet Bushing to 125-26 ft-lb (170-35 Nm) torque.
Assembly of the Angle Head
For Model 77A60P107, 77A60P109 or 77A75P107:
Install the Lower Arbor Spring Washer (51) onto the Depressed
Center Wheel Arbor (60).
Press the Arbor Lower Bearing (50) onto the Depressed Center
Wheel Arbor until it contacts the Lower Arbor Spring Washer.
NOTICE
If the Bevel Gear (40) is worn or broken, replace both the
Bevel Gear and the Pinion as they are a matched set and
cannot be matched with other Pinions.
3. Grasp the flats of the Depressed Center Wheel Arbor in leather-
covered or copper-covered vise jaws, arbor bearing end up.
Tighten the Bevel Gear to 8.5 to 11.5 ft-lb (11.5 to 15.5 Nm)
torque.
4. Install the Bevel Gear Spacer (49).
5. Clean the threads on the Arbor; apply a film of thread locking
compound to the threads. Screw the Bevel Gear Nut (48) onto
the Arbor and tighten to 8.5 to 11.5 ft-lb (11.5 to 15.5 Nm) torque.
Remove the Arbor from the vise.
6. Grasp the Angle Arbor Housing (43) in leather-covered or copper-
covered vise jaws, angle head up. Install the Upper Bearing Spring
Washer (46) and Upper Arbor Bearing (47).
7. If replacement of the Mounting Plate Pin (45) is necessary, press a
new pin into the Angle Arbor Housing.
8. Install the assembled Depressed Center Wheel Arbor into the
Angle Arbor Housing.
9. Place the Depressed Center Wheel Guard (59) in position on the
Angle Arbor Housing, making sure the Mounting Plate Pin aligns
with the pin hole in the guard.
10. Install the Screw Lock Washers (53) and Guard Screws (54).
Tighten to 7.5 to 8 ft-lb (10 to 11 Nm) torque.
11. Slide the Autobalancer Assembly (61), rectangular hub side
leading, onto the Arbor.
12. To mount the wheel on the tool, proceed as follows:
For Type 27 and Type 28 Plain Hole Mounted Wheels:
Thread the Depressed Center Wheel Flange (66 or 68) onto the
Arbor against the Auto balancer Assembly.
Slide the wheel onto the Arbor against the Depressed Center
Wheel Flange.
Thread the Depressed Center Wheel Nut onto the Arbor
against the wheel and tighten the Nut using the Depressed
Center Wheel Spanner Wrench (Part No. D32-26). Tighten the
Nut only enough to drive the wheel and prevent slippage.
Using a hex wrench, install the Wheel Retaining Screw (65) in
the end of the Arbor.
For Type 27 Mounted Wheels:
Install two Depressed Center Wheel Spacers (63) on the Arbor
against the Auto balancer Assembly.
Thread the wheel onto the Arbor.
Using the hex wrench, install the Wheel Retaining Screw (65)
in the end of the Arbor.
3.
4.
1.
2.
a.
b.
c.
d.
a.
b.
c.
