SOFTWARE GP-MONITOR 5603609 - Caterpillar

Illustration 1 g03217016
Thruster leg motor and flexible coupling removal
Carefully lift off the hydraulic motor to allow access to the flexible coupling.
Illustration 2 g03260858
Thruster flexible coupling
(1) Motor spider hub
(2) Spider washer
(3) Motor spider screw
(4) Spider flexible element
(5) Thruster spider screw
(6) Spider washer
(7) Thruster spider hub
(8) Thruster tapered sleeve
Remove the original motor spider hub (1) as shown in the Illustration above.
Remove the original thruster spider hub (7) and tapered sleeve (8). Note: Do not damage the tapered sleeve during Disassembly and Assembly.
Install the new tapered sleeve on the thruster leg shaft.
Install the new spider hubs on the leg and motor. Apply LOCTITE 243 to the threads of the bolts and torque the bolts according to the table.
Table 1
Torque Specifications
Model Bolt Size Torque
CT220 NA NA
CT300 Motor spider bolt: M6x16
Thruster spider bolt: M10x20 Use the standard S.A.E. grade or metric fastener torque specified in S.A.E. torque standards.
CT400 Motor spider bolt: M6x16
Thruster spider bolt: M10x20
CT550 Motor spider bolt: M6x40
Thruster spider bolt: M12x25
CT600 Motor spider bolt: M6x40
Thruster spider bolt: M12x25
Without the spider flexible element (4) installed, lower the motor into place. No metal to metal contact is allowed.
Place the spider flexible element (4) in the thruster spider hub (7). Note: Allowing the motor to rest on the flexible element may cause damage to the flexible element leading to premature failure of the element.
Carefully lower the hydraulic motor into position so that the spider flexible element (4) and hydraulic motor are properly engaged.