TM 5-3805-248-23-1
STEERING/HYDRAULIC SYSTEM TROUBLESHOOTING PROCEDURES - CONTINUED
0015 00
Table 2. Hydraulic System Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6.
Hydraulic System Slow to
Respond.
WARNING
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
with rags.
1.
Check for leaks in hydraulic suction
1. If damaged, replace hose(s) (WP 0233
hoses causing aeration of hydraulic
oil.
2. If hoses are OK, go to Test 3.
2.
Check for leaks at ejector, bowl and
1. If damaged, replace hydraulic
apron cylinders.
cylinder(s) (WP 0242 00 through WP
2. If cylinder(s) are OK, go to Test 3.
3.
Perform hydraulic system flow meter
1. Correct as indicated in WP 0321 00.
tee tests (WP 0321 00).
2. If problem still exists, replace hydraulic
implement pump (WP 0322 00).
7.
Hydraulic Oil Is
Overheating (Indicated by
Blown Oil Seals, Decreased
Life of Components).
WARNING
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
with rags.
1.
Perform hydraulic system tests (WP
Adjust or repair affected component(s) as
0321 00).
directed by test results (WP 0321 00).
