STEERING/HYDRAULIC SYSTEM TROUBLESHOOTING PROCEDURES - CONTINUED
Table 1. Steering System Troubleshooting Procedures - Continued.
TEST OR INSPECTION
Difficult Steering -
Check movement of flow control
1. If flow control valve sticks, or is
valve in steering control valve.
damaged or defective, replace (WP
2. Go to Test 9.
10. Check implement valve.
1. Replace implement pump if worn,
damaged or defective (WP 0322 00).
2. If valve is OK, go to Test 10.
11. Check follow-up cylinder relief valve
1. Replace relief valves or check valves, if
and check valves (WP 0308 00 and
damaged or defective (WP 0309 00 and
WP 0309 00).
WP 0310 00).
2. If valves are OK, go to Test 11.
12. Check valve spool on steering control
1. If valve spool requires adjustment,
adjust (WP 0312 00).
2. If valve spool is damaged or defective,
replace (WP 0312 00).
Do NOT remove hydraulic tank filler cap or disconnect or remove any hydrau-
lic system line or fitting unless hydraulic system pressure has been relieved.
Hydraulic system pressure can be over 2,500 psi (17,237 kPa), even with engine
and pump OFF. To relieve pressure, lower all hydraulic attachments to the
ground and shut down engine. Move control levers through all operating posi-
tions, then SLOWLY loosen hydraulic tank filler cap. After maintenance,
tighten all connections before applying pressure. Escaping hydraulic fluid under
pressure can penetrate the skin, causing injury or death.
At operating temperature, hydraulic oil is hot. Allow hydraulic oil to cool before
disconnecting any hydraulics. Failure to do so may cause injury.
Hydraulic oil is slippery and can cause falls. To avoid injury, wipe up spilled oil
Check follow-up cylinder relief valve and
If relief valves or check valves leak or are
check valves (WP 0308 00 and WP 0309
damaged or defective, replace (WP 0309
00 and WP 0310 00).