Operation and maintenance manual

Section 230-0060
Body System - Body Control Valve
SM 1410 Rev 2 2-02
6
5. Check body control valve assembly and hydraulic
lines for leaks. Tighten as required.
6. Remove all blocking from road wheels and place
steering lock bar in the stowed position.
MAINTENANCE
Relief valve pressure should be checked on a regular
basis to ensure correct operating pressures are being
maintained. Limited repair of the control valve is with
replacement of parts only.
* * * *
BODY CONTROL VALVE DIAGNOSIS
CONDITION REASON CHECK AND/OR REMEDY
Valve leaks at 'O' rings Defective 'O' ring Partially pull out control spool and replace the
defective 'O' ring.
Control spool does not Faulty return spring Replace return spring.
Corrosion or contamination Disassemble control spool assembly, clean parts and
replace any worn parts.
System does not build up Defective relief valve Check relief valve pressure. Adjust as required.
pressure
Load drops with control Excessive clearance Replace control valve assembly.
spool in 'Hold' position between control spool and
bore
return to 'Hold' position
SERVICE TOOLS
There are no special tools required for the procedures
outlined in this section. Refer to Section 300-0070,
SERVICE TOOLS, for part numbers of general
service tools and adhesives. These tools and
adhesives are available from your dealer.