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ATTACHMENT CYLINDER DOES NOT OPERATE - continued |
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 TM 10-3930-673-20-1
4. ATTACHMENT CYLINDER DOES NOT OPERATE (CONT).
4
KNOWN INFO
TEST OPTIONS
Hydraulic oil OK.
Pressure test.
Is hydraulic oil pressure at
Hydraulic hoses OK.
STE/ICE-R #51.
piston pump 160 psi
Hose/tube connections OK.
REASON FOR QUESTION
(1103.2 kPa)?
POSSIBLE PROBLEMS
If hydraulic oil pressure is not
Piston pump faulty.
160 psi, piston pump is faulty.
Attachment control valve faulty.
Attachment cylinder faulty.
Test/replace faulty
NO
piston pump
(Para 18-4).
YES
5
KNOWN INFO
TEST OPTIONS
Hydraulic oil OK.
Pressure test.
Is hydraulic oil pressure at
Hydraulic hoses OK.
STE/ICE-R #51.
attachment control valve
Hose/tube connections OK.
REASON FOR QUESTION
Piston pump OK.
between 160 psi (minimum
If hydraulic oil pressure is not
POSSIBLE PROBLEMS
stand-by pressure) and
between 160 and 3625 psi,
3625 psi (maximum operating
Attachment control valve faulty.
attachment control valve is faulty.
pressure) (1103.2 and
Attachment cylinder faulty.
24994.4 kPa)?
Replace faulty
NO
attachment control
valve (Para 18-6).
YES
2-800
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