Ingersoll-Rand ST900 Series - Page 20

20 03540598_ed12
Needle Bearing Inserting Tool
Shoulder to
regulate depth
Pilot to t I.D. of Bearing.
Length of Pilot to be
approximately 1/8” less than
length of Bearing
15°
(Dwg. TPD786)
10. Install the Drive Housing O-ring (35) onto the Drive Housing.
11. Install the Drive Housing onto the Gear case, aligning the
punches.
12. Install the eight Drive Housing Cap Screws (40) and Drive Housing
Cap Screw Lock Washers (41). Tighten to 28 ft-lb (38 Nm) torque.
Refer to Dwg. TPD1168.
41
40
32
38
(Dwg. TPD1168)
Installation of the Motor Housing, Motor Assembly and
Intermediate Gear Case
1. Press one Idler Gear Bearing (20) into a Idler Gear (19).
2. Press Idler Gear Spacer (21) into the Idler Gear until it seats
against the Bearing.
3. Press the other Idler Gear Bearing into the Idler Gear until it seats
against the Spacer. Repeat this procedure for the other two Idler
Gears.
4. Install the assembled Idler Gears in the Idler Gear Frame (18) by
aligning the holes in the Gears and the Bearings with the holes in
the Idler Gear Frame and pressing in the Idler Gear Shafts.
5. Press the Gear Frame Bearing (23) on the Shaft of the Idler Gear
Frame. Refer to Dwg. TPD1741.
20
20
24
18
24
23
22
21
19
(Dwg. TPD1741)
6. Install the Idler Gear Frame Assembly in the front of the Motor
Housing and secure it with Loctite and torque to 10 ft-lb with Cap
Screws (24). Refer to Dwg. TPD1745.
*** Registered trademark of Permabond
8
24
Planet Gear
Frame Assembly
(Dwg. TPD1745)
7. Install the Spacer (17) on the shaft of the Carrier/Ring Gear (17A).
8. Using a bearing pressing tool of the proper size, press the
Bearing (17C) into the rear of the Intermediate Gear Case (13).
9. Using a sleeve which contacts the outer ring of the Seal (16),
press the Seal over the Spacer,  at side  rst.
NOTICE
Make sure that the  at side of the seal will be installed against
the Bearing.
10. Install the shaft of the Carrier through the Spacer until the
shoulder of the Carrier seats against the Spacer. Refer to
Dwg. TPD1743.
17A
17C
14
13
15
17
(Dwg. TPD1743)
11. Install the Intermediate Pinion (17B) making sure that the notches
at the rear of the Pinion align with the notches and tangs in the
shaft of the Idler Gear Frame.
12. Clean the threads of the Intermediate Pinion Retaining
Screw (17D) and apply 2-3 drops of Permabond HMll® *** to the
threads approximately 3 mm from the end of the Screw. Install
Screw and tighten enough to hold assembly together.
13. For  nal tightening, position the Intermediate Gear Case so the
Intermediate Pinion is secured in the jaws of a leather-covered or
copper-covered vise. Tighten the Intermediate Pinion Retaining
Screw to 90 ft-lb (122 Nm) torque. Refer to Dwg. TPD1739.
13
26
Loosen 1-1/2 turns
only. Do not remove.
(Dwg. TPD 1739)
14.
Remove the Intermediate Gear Case from the vise and set it on a
bench.
Align the punch marks on the Intermediate Gear Case and Gear
Case and using a plastic hammer, tap the Intermediate Gear Case
until it seats in the rear of the Gear Case. Mike sure the Intermediate
Pinion meshes with Drive Gear. Refer to Dwg. TPD1746.