Figure 5-135. Steering Valve Assembly

Figure 5-135. Steering Valve Assembly

b. Wash all parts in a Stoddard type cleaning

replaced as a unit if badly worn. Do not rework or

solvent.

attempt to touch up the valve spool. This practice

will only result in improper steering unit operation

c. Inspect all fluid passages in valve body to be

and performance.

certain they are clean and free of obstructions.

5-116. REASSEMBLY.

d. Check each disassembled part for wear, cracks

or pitting that would render them unfit for

a. Immerse all parts in clean hydraulic fluid to

continued use. Replace all defective parts.

facilitate assembly. Coat all O-rings and seals with

petroleum jelly prior to assembly.

e. Inspect valve spool and valve spool bore for

deep scoring and excessive wear. As these parts are

b. Install new O-ring (coated with grease or

not ordinarily serviced separately, they should be

petroleum jelly) in cylinder end of valve body and

5-89