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Page Title:
FRAME TILT CYLINDER DOES NOT EXTEND OR RETRACT - continued |
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 TM 10-3930-673-20-1
9. FRAME TILT CYLINDER DOES NOT EXTEND OR RETRACT (CONT).
KNOWN INFO
TEST OPTIONS
4
Hydraulic oil level OK.
Pressure test.
Is hydraulic oil pressure at
Frame tilt cylinder hydraulic hoses
STE/ICE-R #51.
OK.
small section of tandem gear
REASON FOR QUESTION
Frame tilt cylinder hose
pump at 2600 to 2700 psi
If hydraulic oil pressure is not at
connections/tube OK.
(17940 to 18630 kPa)?
2600 to 2700 psi (17940 to
POSSIBLE PROBLEMS
18630 kPa), tandem gear pump
Tandem gear pump faulty.
is faulty.
Frame tilt/brakes relief valve faulty.
Frame tilt valve faulty.
Frame tilt cylinder faulty.
Test/replace faulty
NO
tandem gear pump
(Para 18-3).
YES
5
KNOWN INFO
TEST OPTIONS
Hydraulic oil level OK.
Pressure test.
Is hydraulic oil pressure at
Frame tilt cylinder hydraulic hoses
STE/ICE-R #51.
the frame tilt/brakes relief
OK.
REASON FOR QUESTION
Frame tilt cylinder hose
valve at 2600 to 2700 psi
If hydraulic oil pressure is not at
connections/tube OK.
(17940 to 18630 kPa)?
2600 to 2700 psi (17940 to
Tandem gear pump OK.
18630 kPa), relief valve is faulty.
POSSIBLE PROBLEMS
Frame tilt/brakes relief valve faulty.
Frame tilt valve faulty.
Frame tilt cylinder faulty.
Adjust pressure or
NO
replace faulty relief
valve (Para 18-8).
YES
2-846
Change 1
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