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Page Title:
LEFT AND RIGHT REAR STEERING CYLINDERS DO NOT EXTEND OR RETRACT - continued |
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 TM 10-3930-673-20-1
7. LEFT AND RIGHT REAR STEERING CYLINDERS DO NOT EXTEND OR RETRACT (CONT).
KNOWN INFO
TEST OPTIONS
4
Left and right front steering
Pressure Test.
Is hydraulic oil flow rate at
cylinders extend or retract.
STE/ICE-R #51.
Hydraulic oil level OK.
large section of tandem gear
REASON FOR QUESTION
Steering cylinders hydraulic hoses
pump at 41.3 to 55.2 gpm (156
If hydraulic oil flow rate is not at
OK.
to 209 Lpm)?
41.3 to 55.2 gpm (156 to 55.2
Steering cylinders hose
Lpm), tandem gear pump is
connections OK.
faulty.
POSSIBLE PROBLEMS
Tandem gear pump faulty.
Priority valve faulty.
Steering control valve faulty.
Steering select valve faulty.
Left and/or right rear steering
cylinders faulty.
Test/replace faulty
NO
tandem gear pump
(Para 18-3).
YES
5
KNOWN INFO
TEST OPTIONS
Left and right front steering
Pressure Test.
Is hydraulic oil pressure at
cylinders extend or retract.
STE/ICE-R #51.
priority valve at 2500 +/- 50 psi
Hydraulic oil level OK.
REASON FOR QUESTION
Steering cylinders hydraulic hoses
(17237.5 +/- 345 kPa)?
If hydraulic oil pressure is not at
OK.
2500 +/- 50 psi (17237.5 +/-
Steering cylinders hose
345 kPa), priority valve is faulty.
connections OK.
Tandem gear pump OK.
POSSIBLE PROBLEMS
Priority valve faulty.
Steering control valve faulty.
Steering select valve faulty.
Left and/or right rear steering
cylinders faulty.
Test/replace faulty
NO
priority valve
(Para 18-7).
YES
2-826
Change 1
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