UDRF01.04GB
Maintenance manual DRF 400–450
4 Brakes – 4.3 Service brake system
5
4.3
Service brake system
page
–
Power-assisted brake system, function
description
The power-assisted brake system consists of a brake oil tank, brake
oil pump, brake oil filter, accumulator charging valve, accumulators,
brake valve, pressure sensors, brake cylinder and wheel brake units.
The brake oil pump pumps oil (from tank) which is cleaned in the oil
filter. The accumulator charging valve directs pressure to the accu-
mulators that store pressure or direct the oil through the wheel
brake for cooling of the brake discs. The brake valve directs pressure
from the accumulators to the brake cylinder. The brake cylinder
compresses the discs in the brake units that brake the machine.
Make-contact brake pressure gives a signal so that the brake lights
are activated when the brake cylinder is pressurized.
When the accumulators are charged, the accumulator charging
valve controls oil through the drive axle's brake units and cools the
brakes. The oil passes through the cooler back to the tank. An elec-
tric cooling fan increases the air flow through the cooler when the
temperature needs to be lowered. A thermal by-pass valve leads the
oil past the cooler if the oil's temperature is low. The temperature
sensor controls activation of fan and temperature warning on the
display.
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Содержание DRD450-80S4X
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Страница 18: ...UDRF01 04GB Maintenance manual DRF 400 450 2 BSafety https www forkliftpdfmanuals com...
Страница 34: ...UDRF01 04GB Maintenance manual DRF 400 450 2 C Preventive maintenance https www forkliftpdfmanuals com...
Страница 52: ...UDRF01 04GB Maintenance manual DRF 400 450 2 0 Complete machine https www forkliftpdfmanuals com...
Страница 60: ...UDRF01 04GB Maintenance manual DRF 400 450 2 1Engine https www forkliftpdfmanuals com...
Страница 86: ...UDRF01 04GB Maintenance manual DRF 400 450 2 2Transmission https www forkliftpdfmanuals com...
Страница 100: ...UDRF01 04GB Maintenance manual DRF 400 450 2 3Driveline axle https www forkliftpdfmanuals com...
Страница 106: ...UDRF01 04GB Maintenance manual DRF 400 450 2 4Brakes https www forkliftpdfmanuals com...
Страница 122: ...UDRF01 04GB Maintenance manual DRF 400 450 18 4 Brakes 4 8 14 Oil brake system https www forkliftpdfmanuals com...
Страница 124: ...UDRF01 04GB Maintenance manual DRF 400 450 2 5Steering https www forkliftpdfmanuals com...
Страница 130: ...UDRF01 04GB Maintenance manual DRF 400 450 2 6Suspension https www forkliftpdfmanuals com...
Страница 150: ...UDRF01 04GB Maintenance manual DRF 400 450 2 7 Load handling https www forkliftpdfmanuals com...
Страница 216: ...UDRF01 04GB Maintenance manual DRF 400 450 68 7 Load handling 7 10 4 Synchronous lift https www forkliftpdfmanuals com...
Страница 218: ...UDRF01 04GB Maintenance manual DRF 400 450 2 8 Control system https www forkliftpdfmanuals com...
Страница 248: ...UDRF01 04GB Maintenance manual DRF 400 450 32 8 Control system 8 5 Setup https www forkliftpdfmanuals com...
Страница 250: ...UDRF01 04GB Maintenance manual DRF 400 450 2 9 Frame body cab and accessories https www forkliftpdfmanuals com...
Страница 286: ...UDRF01 04GB Maintenance manual DRF 400 450 2 10 Common hydraulics https www forkliftpdfmanuals com...
Страница 304: ...UDRF01 04GB Maintenance manual DRF 400 450 2 11 Common electrics https www forkliftpdfmanuals com...
Страница 320: ...UDRF01 04GB Maintenance manual DRF 400 450 2 D Error codes https www forkliftpdfmanuals com...
Страница 410: ...UDRF01 04GB Maintenance manual DRF 400 450 92 D Error codes 8 Control system https www forkliftpdfmanuals com...
Страница 412: ...UDRF01 04GB Maintenance manual DRF 400 450 2 ESchematics https www forkliftpdfmanuals com...
Страница 440: ...UDRF01 04GB Maintenance manual DRF 400 450 30 E Schematics 11 Common electrics https www forkliftpdfmanuals com...
Страница 572: ...UDRF01 04GB Maintenance manual DRF 400 450 2 F Technical data https www forkliftpdfmanuals com...
Страница 588: ...UDRF01 04GB Maintenance manual DRF 400 450 2 G Terminology and index https www forkliftpdfmanuals com...