Table 3-1. Operator/Crew Troubleshooting Table - CONT
TEST OR INSPECTION
HYDRAULIC SYSTEM - CONT
Check that suspension shut-off and gooseneck isolation valves (para. 2-6) are in correct position.
Suspension shut-off valve handle and gooseneck isolation valve handle should be in ADJUST
position, both handles pulled outboard.
Check for general hydraulic failures.
Refer to symptom 10 for general hydraulic failures.
GOOSENECK DRIFTS DOWN, DROPS, OR WILL NOT SUPPORT ITSELF
Check that gooseneck isolation valve is in correct position.
If uncoupled from a tractor, gooseneck isolation valve handle should be in ADJUST position (para.
Check for evidence of leakage at gooseneck cylinder rod seals, line fracture valves, gooseneck
control valve, and gooseneck isolation valves.
If leaks are found, notify unit maintenance.
OIL OR AIR RELIEVING FROM GOOSENECK CYLINDER AIR RESERVOIR
The air reservoir contains a small amount of oil to minimize corrosion. Some of
the oil may escape through the relief valve or air breather valve during operation.
Therefore, occasional dripping is not considered a malfunction.
Check for damaged gooseneck cylinder air reservoir.
Check for dents, cracks and damage to reservoir. If damaged, notify unit maintenance.
Check that oil is dripping or running from relief valve or air breather/check valve at gooseneck
cylinder air reservoir.
Check air reservoir for leaks. Tighten fittings if necessary. If joint still leaks, notify unit maintenance.