BobCat 753 – MAIN RELIEF VALVE – Removal and Installation

Remove the four motor cover mounting bolts (Item 1) [Figure 20-30-6].

Clean the area around the control valve. Loosen and remove the main relief valve (Item 1) [Figure 20-30-7].
Remove the O-rings and back-up washers [Figure 20-30-5].

Clean the main relief valve in clean solvent. Use air pressure to dry the valve.

Install new O-rings and back-up washers. Install the main relief valve (Item 1) [Figure 20-30-7] and tighten. Check
the pressure again. (See MAIN RELIEF VALVE (CONT’D) on Page 20-30-3.)

Installation: Tighten the main relief valve to 35-40 ft.-lbs. (47-54 Nm) torque.


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