4
16573339_ed2
NOTICE
Thread the Controller onto the Rotor. Before tightening the
Controller, be certain that the dowel holes in the Cylinder and
End Plate are aligned. Tighten the Controller to 7.5 to 8.0 ft-lb
(10.1 to 10.8 Nm) torque. Do not exceed 8 ft-lb (10.8 Nm) torque
as the Controller could be damaged. Allow Loctite to cure for six
hours before putting Grinder back in service.
WARNING
Always check the free speed of the Grinder after it has been
reassembled and before it is put back into service. Never use
a Grinder with a free speed that exceeds the maximum speed
listed on the Nameplate.
11. Remove the Rotor from the vise.
12. Insert the Cylinder Dowel (32) so it is flush with the face of the
Front End Plate and protrudes from the back of the Rear End Plate
Assembly.
13. Install a new Rear End Plate Gasket (26) into the Throttle
Handle (1).
14. Install the assembled motor into the Throttle Handle (1), making
sure the Cylinder Dowel (32) aligns with the pin hole inside the
Throttle Handle.
15. Install the Motor Spacer (33) into the large end of the Arbor
Housing (22).
16.
For Wire Brush Machines
, install the Planet Gear Bearings (68)
into the Planet Gears (67).
Install one assembled Planet Gear (67) into one of the slots
in the gear head. Make sure the shaft hole aligns in both the
Planet Gear and the gear head.
Press the Planet Gear Shaft (71) into the hole opposite the
tapered shaft hole in the gear head until it is flush with the
face of the gear head.
Install the Rotor Pinion (69) making sure the teeth of the
Planet Gear and Pinion mesh. Install the other assembled
Planet Gear into the other slot of the gear head. Make sure the
teeth of the Planet Gear and Pinion mesh and the shaft hole
aligns in both the Planet Gear and the gear head.
Press the other Planet Gear Shaft (71) into the hole opposite
the tapered shaft hole in the gear head until it is flush with the
face of the gear head.
Press the Gear Frame Bearing (70) onto the gear head end of
the Arbor (39).
Install the Internal Gear (72) over the gear head end of the
Arbor (39), making sure the splines of the Internal Gear mesh
with the planet gear teeth.
Lubricate the Gearing liberally with
Ingersoll Rand
Lubricant
No. 68 and install the assembled Arbor into the Arbor
Housing (22).
NOTICE
In the following step, make sure the Lever (17) on the Throttle
Handle (1) aligns with the I-R logo on the exterior of the Arbor
Housing (22).
17. Slide the assembled Throttle Handle (1) into the Arbor
Housing (22).
CAUTION
For Wire Brush Machines, make sure the spline on the Rotor (28)
properly engages the spline in the Rotor Pinion (69).
18. Grasp the Arbor Housing in a vise, air inlet up.
19. 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.
** Registered trademark of ND Industries.
a.
b.
c.
d.
e.
f.
g.
NOTICE
In the following step, do not exceed 52 ft-lb (70.5 Nm) torque.
The motor may be damaged if this torque is exceeded.
20. Using No. 77H-281 Coupling Nut Wrench, install the Coupling Nut
and tighten it to 50 to 52 ft-lb (68 to 70.5 Nm) torque.
Assembly of the Throttle Lever and Inlet
Assemble the Throttle Lever Assembly (17) as illustrated in
Dwg. TPD662.
(Dwg.TPD662)
2. 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) through the Throttle Lever Assembly. File off any
sharp edges. Operate the mechanism to assure operation.
3. Grasp the flats of the Throttle Handle Assembly (1) in a vise, air
inlet up.
4. Insert the new Throttle Valve Spring (6), small end first.
NOTICE
The Inlet Bushing in the next step has an interference thread.
Apply a light film of oil to the threads before assembly.
5. Clean the face of the Inlet Bushing (4) and the Inlet Bushing
Screen (5) in a suitable cleaning solution before assembling into
the tool. Insert the parts in the end of the Throttle Handle. Using
a wrench, tighten the Inlet Bushing (4) to 40 ± 5 ft-lb (54 ± 7 Nm)
torque.
6. Fill the Oil Chamber with the recommended oil and install the Oil
Chamber Plug (7). Tighten to 4 ft-lb (5.4 Nm) torque.
Assembly of the Arbor
For Models 77H120H63, 77H120H63-EU, 77H90H84,
77H90H84-EU, 77H120H84 and 77H120H84-EU,
press the
Wheel End Bearing (42 or 51) onto the Arbor (35 or 36).
Grasp the Arbor (35 or 36) in a vise, spline end up.
Install the Bearing Lock Washer (41 or 50) and Bearing Locknut
(40 or 49) onto the Arbor. Tighten the Locknut snugly. Bend the
tangs of the Bearing Lock Washer into the grooves of the Bearing
Locknut.
Remove the Arbor from the vise.
Grasp the Arbor Housing (22) in a vise, guard end up. Install the
Dust Seal (36B) on the Arbor Housing.
Lubricate with 3 to 4 cc of
Ingersoll Rand
No. 68 Grease and
install the Arbor Coupling (34) into the Arbor Housing (22) and
onto the spline of the rotor shaft. Slide the spline of the Arbor (35
or 36) into the Arbor Coupling (34).
Place the Wheel Guard (43 or 52) onto the Arbor Housing,
keeping the Dust Seal (36B) in place and making sure the holes
are aligned. Install the Guard Lock Washers (48 or 56) and Wheel
Guard Screws (47 or 55). Tighten the two upper screws to 9.0 to
9.5 in-lb (10.25 to 10.75 Nm) torque. Tighten the two lower Screws
to 4.2 to 4.3 in-lb (4.75 to 5.50 Nm) torque.
1.
1.
2.
3.
4.
5.
6.
7.
Summary of Contents for 77H Series
Page 7: ...Notes...
