4-13. TROUBLESHOOTING (CONT)
TEST OR INSPECTION
HYDRAULIC SYSTEM - CONT
STEERING WILL NOT ADJUST - CUNT
Check that steering system steers in one direction but system pressure gage reads over 3800 psi
(26201 kPa) and still does not adjust in the other direction.
a. Steering manifold pilot check valves P01 thru P04 may be leaking, may be defective, or may be
failing to pilot. Remove pilot check valves, clean, repair, or replace parts as required (para. 4-78).
b. Steering manifold resistance valve RV1 thru RV8 may be stuck closed and/or open, and dirty or
defective. Remove resistance valves, clean, repair, or replace parts as required (para. 4-78).
STEERING PRESSURE INDICATOR LIGHT COMES ON
Indicator light comes on and semitrailer also has other malfunction symptoms, such as poor tracking
behind tractor or steering will not adjust.
Check for general hydraulic failures that would limit fluid flow to hydraulic controls. (Refer to symptom
Check for external leaks at hydraulic fittings/joints.
Indicator light remains lit after numerous general hydraulic checks.
a. Bleed and recharge hydraulic system to remove possible air trapped in hydraulic system. Refer