BobCat 753 – HYDRAULIC CONTROL VALVE (FOOT CONTROL) – Load Check Valves

Remove the BICS valve assembly from the control valve.
(See BICSTM Valve, Removal And Installation on Page 20-41-9.)

Remove the four large O-rings (Item 1) [Figure 20-40-52] and small O-ring (Item 2) [Figure 20-40-52]. Always
replace these O-rings before installing the BICS valve assembly.

Mark each valve section, spool and related parts so that they will be returned to its original valve section during
assembly.

Use bolts to fasten the control valve to a work bench for easier disassembly and assembly procedures.

Loosen the load check valve plugs (Item 1) [Figure 20-40-53].

Installation: Always use new O-ring. tighten the plug to 35-40 ft.-lbs. (47-54 Nm) torque.

Remove the load check plugs (Item 1) [Figure 20-40-54].

Remove the spring (Item 2) and poppet (Item 3) [Figure 20-40-54].

The auxiliary section (Item 1) uses an orifice load check poppet (Item 2) [Figure 20-40-55].

NOTE: For correct port locations and valve component valves. (See Identification Chart on Page 20-40-16.)

 

Leave a Reply

Your email address will not be published. Required fields are marked *