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Page Title:
BOOM EXTEND CYLINDER SLOW OR DOES NOT EXTEND OR RETRACT - continued |
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 TM 10-3930-673-20-1
TANDEM GEAR PUMP
PRESSURE TEST
(1) Remove cover from diagnostic coupler
on large section tandem gear pump.
(2) Perform STE/ICE Test #51
(TM 9-4910-571-12&P).
(3) Read output pressure on test device.
(a) If hydraulic oil pressure is at
3050+/- 50 psi (21029.75 +/-
345 kPa), go to Step 5 of this fault.
(b) If hydraulic oil pressure is not at
3050+/- 50 psi (21029.75 +/-
345 kPa), shut down engine (TM
10-3930-673-10) and test and
replace tandem gear pump (Para
18-3).
TR01263
MAIN CONTROL VALVE
PRESSURE TEST
(1) Remove cover from diagnostic coupler
on main control valve.
(2) Perform STE/ICE Test #51
(TM 9-4910-571-12&P).
(3) Read the output pressure on test
device.
(a) If hydraulic oil pressure is at 3050
+/- 50 psi (21029.75 +/- 345 kPa),
go to Step 6 of this fault.
(b) If the hydraulic oil pressure is not
at 3050 +/- 50 psi (21029.75 +/-
345 kPa), shut down engine
(TM 10-3930-673-10) and replace
main control valve (Para 18-5).
TR01814
Change 1
2-819
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