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Page Title:
LEFT AND RIGHT FRONT STEERING CYLINDERS DO NOT EXTEND OR RETRACT - continued |
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 TM 10-3930-673-20-1
8. LEFT AND RIGHT FRONT STEERING CYLINDERS DO NOT EXTEND OR RETRACT (CONT).
KNOWN INFO
TEST OPTIONS
4
Left and right rear steering
Pressure test.
Is hydraulic oil pressure 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 2600 to 2700 psi
If hydraulic oil pressure is not at
OK.
(17940 to 18630 kPa)?
2600 to 2700 psi (17940 to
Steering cylinders hose
18630 kPa), tandem gear pump
connections OK.
is faulty.
POSSIBLE PROBLEMS
Tandem gear pump faulty.
Priority valve faulty.
Steering control valve faulty.
Steering select valve faulty.
Left and/or right front steering
cylinders faulty.
Test/replace faulty
NO
tandem gear pump
(Para 18-3).
YES
5
KNOWN INFO
TEST OPTIONS
Left and right rear steering
Pressure test.
Is hydraulic oil pressure at
cylinders extend or retract.
STE/ICE-R #51.
priority valve at 2600 to
Hydraulic oil level OK.
REASON FOR QUESTION
Steering cylinders hydraulic hoses
2700 psi (17940 to
If hydraulic oil pressure is not at
OK.
18630 kPa)?
2600 to 2700 psi (17940 to
Steering cylinders hose
18630 kPa), priority valve is
connections OK.
faulty.
Tandem gear pump OK.
POSSIBLE PROBLEMS
Priority valve faulty.
Steering control valve faulty.
Steering select valve faulty.
Left and/or right front steering
cylinders faulty.
Test/replace faulty
NO
priority valve
(Para 18-7).
YES
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