BobCat 753 – HYDRAULIC CONTROL VALVE (FOOT CONTROL) – Removal And Installation (S/N 515840211 & Below)

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

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

Stop the engine. Raise the seat bar.

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

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

Thoroughly clean the area around the control valve.

Drain the hydraulic reservoir. (See Replacing Hydraulic Fluid on Page 10-120-3.)

Mark all tubelines and hoses for correct installation.

Disconnect the wire harness connectors (Item 1) [Figure 20-40-1] from the solenoid connectors.

Disconnect the wire harness connector (Item 2) [Figure 20-40-1] from the BICSTM valve solenoid connector.

Disconnect the drain hoses (Item 3) [Figure 20-40-1] from the main control valve.

Disconnect the hose (Item 4) [Figure 20-40-1] from the lift arm by-pass control valve.

Disconnect the tubeline (Item 1) [Figure 20-40-2] from the control valve.

Disconnect the tubeline (Item 1) [Figure 20-40-3] from the auxiliary section of the control valve.

Disconnect and remove the tubeline (Item 2) [Figure 20-40-3] from the auxiliary section of the control valve.

Disconnect the tilt tubelines (Item 1) [Figure 20-40-4].

Disconnect the three tubelines (Item 1) [Figure 20-40-5] from the lift section of the control valve.

Disconnect the drain hose (Item 2) [Figure 20-40-5].

Remove the two mounting bolts (Item 1) [Figure 20-40-6] from the lift arm by-pass control bracket.

Remove the clevis pin (Item 1) [Figure 20-40-7] from the tilt spool linkage.

Remove the clevis pin (Item 2) [Figure 20-40-7] from the lift spool linkage.

Connect a hoist to the control valve [Figure 20-40-8].

Locate the drive motor cover (Item 1) and the access cover (Item 2) [Figure 20-40-9] on the right side of the
loader frame.

Remove the drive motor cover and loosen the rear mounting bolt and remove the front mounting bolt from
the rectangular access cover [Figure 20-40-10].

Rotate the cover to expose the access slot in the loader [Figure 20-40-10].

Disconnect the inlet hose from the control valve through the access slot [Figure 20-40-11].

Remove the two control valve mounting bolts/nuts (Item 1) [Figure 20-40-12] from the loader frame.

Remove the control valve from the loader.

Installation: Tighten the mounting bolt & nut to 18-20 ft.-lbs. (24-27 Nm) torque.

Reverse the removal procedure to install the control valve.

 

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