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BRAKES
Hydraulic power unit (2)
Brake calipers - front - (5) rear - (6)
Hydraulic power unit comprises an electrically driven
pump and a pressure switch. Pressure switch
incorporates three electro-mechanical switches: one
for pump, another, at a different presure setting, to
illuminate pressure warning light. The latter switch
plus third switch inform ECU of low pressure and that
ABS function should cease whilst pressure remains
low.
NOTE: To identify separate hydraulic
circuits, they are referred to as
HYDROSTATIC and POWER circuits.
Power circuit - Consists of rear calipers and upper
pistons in the front calipers, supplied by direct
hydraulic power from power valve.
The pump also incorporates a non-return valve, a low
pressure inlet filter, and a pressure relief valve to
protect the system.
Hydrostatic circuit - Lower pistons in the front
calipers form this circuit, supplied with hydraulic
energy from servo cylinders comprising a combination
of master cylinder pressure and direct hydraulic
power.
Accumulator (3)
Diaphragm accumulator is precharged with nitrogen at
up to 80 bar (1160 psi), its function is to store
hydraulic energy.
Electronic traction control valve block (7)
Refer to BRAKES - Electronic Traction Control,
repair, ETC Valve Block
Pressure conscious reducing valve (PCRV) (4)
PCRV valve is located between power valve and ABS
solenoid valves for rear axle. Its function is to limit
brake pressure to rear axle.
4
DESCRIPTION AND OPERATION
| Categories | Land Rover, Range Rover |
|---|---|
| Tags | Land Rover |
| Model Year | 1995 |
| Download File |
|
| Document Type | Owners Manual |
| Language | English |
| Product Name | Range Rover Classic |
| Product Brand | Land Rover |
| Document File Type | |
| Publisher | landrover.com |
| Wikipedia's Page | http://en.wikipedia.org/wiki/Land_Rover |
| Copyright | Attribution Non-commercial |
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