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5. MAIN HYDRAULIC PUMP FLOW TEST
SPECIFICATION
Oil temperature
45
±
5˚C (113
±
9˚F)
Engine speed
2230
±
25 rpm
Test pressure 200
±
5 bar (2900 psi)
Maximum pump flow 185
ℓ
/min (48.9 gpm)
FLOW METER GAUGE AND TOOL
Gauge 0~35 MPa (0~350 bar, 0~5000 psi)
Temperature reader
Make test connections.
Install temperature reader.
(see temperature reader installation
procedure in this group)
Heat hydraulic oil to specifications.
(see hydraulic oil warm up procedure in this
group)
Run engine at test specifications.
Close flow meter loading valve to increase
pressure to test specifications.
Read flow meter.
If flow is below specifications, check suction
line and suction pressure for abnormality
before removing pump.
·
·
1)
2)
3)
4)
5)
6)
7)
Flow meter
Hyd tank
Main pump
MCV
757F6WE29
Содержание HL955
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