UDRF01.04GB
Maintenance manual DRF 400–450
7 Load handling – 7.2.3 Pressure reducer
9
7.2.3
Pressure reducer
page
–
Pressure reducer, checking servo pressure
1 Operate and warm up the machine so that the hydraulic oil
reaches operating temperature, at least 50
°
C.
2 Machine in service position, see section
B Safety
.
3 Depressurize the hydraulic systems, see section
B Safety
.
4 Turn the start key to position 0.
5 Connect a pressure gauge (0–25 MPa) to the test outlet on the
pressure reducer.
6 Start the engine and check the servo pressure. Compare with
pressure plate.
Turn the steering wheel or activate a load handling function to
activate the hydraulic oil pumps. The servo pressure is higher
than the stand-by pressure of the hydraulic oil pumps.
7 Depressurize the hydraulic and brake systems, see section
B
Safety
,
Hydraulic and brake systems, depressurizing
.
8 Remove the pressure gauge and fit the protective cap on the
pressure check connection.
W A R N I N G
Hot, pressurized oil.
Personal injury, burn injury, rash or irritation.
Always depressurize the hydraulic systems before
starting to work on the hydraulic systems. Avoid
skin contact with the oil, use protective gloves.
MPa
MPa
MPa
MPa
MPa
MPa
MPa
MPa
MPa
MPa
920643.0024
001029
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Summary of Contents for DRF420-60S5
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Page 18: ...UDRF01 04GB Maintenance manual DRF 400 450 2 BSafety https www forkliftpdfmanuals com ...
Page 60: ...UDRF01 04GB Maintenance manual DRF 400 450 2 1Engine https www forkliftpdfmanuals com ...
Page 86: ...UDRF01 04GB Maintenance manual DRF 400 450 2 2Transmission https www forkliftpdfmanuals com ...
Page 100: ...UDRF01 04GB Maintenance manual DRF 400 450 2 3Driveline axle https www forkliftpdfmanuals com ...
Page 106: ...UDRF01 04GB Maintenance manual DRF 400 450 2 4Brakes https www forkliftpdfmanuals com ...
Page 124: ...UDRF01 04GB Maintenance manual DRF 400 450 2 5Steering https www forkliftpdfmanuals com ...
Page 130: ...UDRF01 04GB Maintenance manual DRF 400 450 2 6Suspension https www forkliftpdfmanuals com ...
Page 150: ...UDRF01 04GB Maintenance manual DRF 400 450 2 7 Load handling https www forkliftpdfmanuals com ...
Page 320: ...UDRF01 04GB Maintenance manual DRF 400 450 2 D Error codes https www forkliftpdfmanuals com ...
Page 412: ...UDRF01 04GB Maintenance manual DRF 400 450 2 ESchematics https www forkliftpdfmanuals com ...