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9. PILOT CONTROL VALVE (EH CONTROL BLOCK) PRESSURE TEST
EH control block
P
Safety valve
760F6WE38
SPECIFICATION
Oil temperature 45
±
5˚C (113
±
9˚F)
Engine speed
High idle
Minimum pressuer 30 bar
Pressure range 35 ~ 50 bar
GAUGE AND TOOL
Gauge 0~7 MPa (0~70 bar, 0~1000 psi)
Lower boom to ground.
Connect gauge to the pilot pressure port of
function to be checked.
Install temperature reader (see temperature
reader installation procedure in this group).
Heat hydraulic oil to specification (see
hydraulic oil warm up procedure in this
group).
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Summary of Contents for HL955
Page 557: ...7 6 MEMORANDUM MEMORANDUM ...