TM 5-3805-248-23-1
STEERING/HYDRAULIC SYSTEM TROUBLESHOOTING PROCEDURES - CONTINUED
0015 00
Table 1. Steering System Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3.
Slow Steering Response.
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 cylinders, hoses,
Replace defective cylinders, hoses, lines
lines and fittings.
and fittings (WP 0180 00).
2.
Check seal on piston in steering
1. If seal is damaged or defective, replace
cylinder.
(WP 0308 00).
2. If problem still exists, go to Test 3.
3.
Check relief valve (WP 0312 00).
1. Replace relief valve if opens at a low oil
pressure, or is damaged or defective
(WP 0322 00).
2. If valve OK, go to Test 4.
4.
Check implement pump.
1. If implement pump is worn, damaged or
defective, replace (WP 0322 00).
2. If problem still exists, perform steering
flow meter tee tests (WP 0306 00).
