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SECTION 3 - CHASSIS & TURNTABLE
NOTE: Refer to figure below for installing O-Rings (8D), (8F) and
Backup Rings (8E), (8H).
6. Lightly grease cylinder walls of Brake Housing (6) and
install Brake Piston (8A) into Brake Housing (6). If neces-
sary, place T-134711 on top of brake and lightly tap until
Brake Piston (8A) contacts brake disk stack.
7. Insert 8 Springs (8L) into Brake Piston (8A) spring holes.
8.
Install Pressure Plate (8M) into Brake Housing (6) bore
and onto top of Springs (8L).
9. Insert and tighten the 0.250-20 UNC Flat Head
Capscrews through the Pressure Plate (8M) and into the
Brake Piston (8A) to compress the springs. Tighten
Socket Head Capscrews incrementally to evenly com-
press Springs (8L)
SAFETY GLASSES MUST BE WORN DURING THESE NEXT STEPS.
10. Using retaining ring pliers, install large Retaining Ring
(8N) into groove in Brake Housing (6) making sure that it
is seated properly.
NOTE: Use caution when installing retaining ring (8N) into Brake
Housing (6). It may cause injury if it slips out of retaining
ring pliers.
11. Remove Flat Head Capscrews from Brake Piston (8A)
incrementally to release slowly release spring tension.
Discard Flat Head Capscrews.
12. Perform brake test following instructions in this section.
13. Grease and install O-Ring (26) in Motor (31) pilot.
3-24
14. Install Motor (31) in Brake Housing (6). Ensure motor
valve mounting face is aligned with radial brake release
port in Housing (1G).
Figure 3-36. Swing Motor Installation
15. Install Bolts (29) in Brake Housing (6) through Lifting
Lugs (28) and Motor (31) flange. Torque bolts to
80-100 ft-lb (108.5-135.5 Nm).
31215019
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