BobCat 753 – HYDROSTATIC MOTOR – Carrier Removal And Installation

Raise the loader lift arms and install an approved lift arm support device. (See Installing Lift Arm Support Device on Page 10-20-1.)

Lift and block the loader. (See LIFTING AND BLOCKING THE LOADER on Page 10-10-1.)

Raise the loader operator cab. (See Raising The Operator Cab on Page 10-30-1.)

Drain the fluid from the chaincase. (See Removing The Oil on Page 40-30-1.)

Remove the engine speed control. (See Removal And Installation on Page 70-20-1.)

Remove the control panel. (See Removal and Installation on Page 50-100-1.)

Remove the lift arm by-pass control valve. (See Removal And Installation on Page 20-50-1.)

Remove the traction lock assembly. (See TRACTION LOCK on Page 60-110-1.)

Remove the center chaincase cover. (See Center Cover Removal And Installation on Page 40-30-3.)

Remove the front chaincase cover. (See Front Cover Removal And Installation on Page 40-30-2.)

Remove the front axle and sprocket. (See Axle Sprocket And Bearings Removal And Installation on Page 40-20-3.)

Remove the hydrostatic motor. (See Removal And Installation on Page 30-20-1.)

Remove the parking brake disc (Item 1) [Figure 30-20-55]. (See Disc Removal And Installation on Page 40-10-2.)

Remove the six motor carrier mounting bolts (Item 2) [Figure 30-20-55] from the inside of the chaincase.

Installation: Tighten the motor carrier mounting bolts to 125-140 ft.-lbs. (170-190 Nm) torque.

For ease of removal, fasten the front drive chain (previously removed) to the chaincase as shown [Figure 30-20-56].

Tip the end of the sprocket toward the rear of the loader and remove the rear drive chain (Item 1) [Figure 30-20-56] from the sprocket.

Slide the motor carrier out of the chaincase [Figure 30-20-57].

Installation: Check the motor carrier gasket (Item 1) [Figure 30-20-57] for wear or damage and replace if
necessary.

Use one of the motor carrier mounting bolts (Item 1) [Figure 30-20-58] and install partially into one mounting
hole on the carrier.

Fasten a chain hoist to the bolt on the motor carrier and remove the carrier from the loader.

Reverse the removal procedure to install the motor carrier.

 

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