Quantcast BRAKE ACTUATORS (LEFT AND/OR RIGHT REAR AND LEFT AND/OR RIGHT FRONT) DO NOT OPERATE CORRECTLY - continued - TM-10-3930-673-20-10912

 

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BRAKE ACTUATORS (LEFT AND/OR RIGHT REAR AND LEFT AND/OR RIGHT FRONT) DO NOT OPERATE CORRECTLY - continued - TM-10-3930-673-20-10911
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TM-10-3930-673-20-1 All Terrain Lifter Army System (ATLAS) 10 000 lb Capacity Manual
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BRAKE ACTUATORS (LEFT AND/OR RIGHT REAR AND LEFT AND/OR RIGHT FRONT) DO NOT OPERATE CORRECTLY - continued - TM-10-3930-673-20-10913
TM 10-3930-673-20-1
10. BRAKE ACTUATORS (LEFT AND/OR RIGHT REAR AND LEFT AND/OR RIGHT FRONT) DO NOT
OPERATE CORRECTLY (CONT).
4
KNOWN INFO
TEST OPTIONS
Is hydraulic oil pressure at
Hydraulic oil level OK.
Pressure test.
small section of tandem gear
Hydraulic hoses OK.
STE/ICE-R #51.
pump at 2600 to 2700 psi
Hose connections/fittings OK.
REASON FOR QUESTION
(17940 to 18630 kPa)?
POSSIBLE PROBLEMS
If hydraulic oil pressure is not at
Tandem gear pump faulty.
2600 to 2700 psi (17940 to
Frame tilt/brakes relief valve faulty.
18630 kPa), tandem gear pump
Brake control valve faulty.
is faulty.
Brake hydraulic accumulator faulty.
Test/replace
NO
tandem gear pump
(Para 18-3).
YES
5
KNOWN INFO
TEST OPTIONS
Hydraulic oil level OK.
Pressure test.
Is hydraulic oil pressure at
Hydraulic hoses OK.
STE/ICE-R #51.
frame tilt/brakes relief valve at
Hose connections/fittings OK.
REASON FOR QUESTION
Tandem gear pump OK.
2600 and 2700 psi (17940 and
If hydraulic oil pressure is not at
POSSIBLE PROBLEMS
18630 kPa)?
2600 to 2700 psi (17940 and
Frame tilt/brakes relief valve faulty.
18630 kPa), relief valve is faulty.
Brake control valve faulty.
Brake hydraulic accumulator faulty.
Adjust pressure or
NO
replace faulty relief
valve (Para 18-8).
YES
2-854
Change 1

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