Land Rover Anti Lock Control Traction Control Rover Manual
Have a look at the manual Land Rover Anti Lock Control Traction Control Rover Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 364 Land Rover manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
COMPONENT LOCATIONS - 4.0L NOTE: RHD shown, LHD similar Brake booster1 Vacuum pump relay2 Vacuum pump3 Vacuum pipe connections to vacuum pump and inlet manifold 4 Check valve5 Vacuum pipe connection to brake booster6 Vacuum pipes7 (G421077) Technical Training128 Lesson 2 – ChassisBrake Booster
COMPONENT LOCATIONS - 4.4L NOTE: LHD shown, RHD similar Vacuum pump relay1 Brake booster2 Vacuum pump3 Vacuum pipe connection to brake booster4 Check valve5 Vacuum pipe connection to vacuum pump6 Vacuum pipes7 Vacuum pipe connection to inlet manifold8 Brake BoosterLesson 2 – Chassis 129Technical Training (G421077)
COMPONENT LOCATIONS - 2.7L DIESEL NOTE: LHD shown Vacuum pump1 Brake booster2 Vacuum pipe connection to brake booster (includes check valve) 3 Vacuum pipe connection to vacuum pump4 Vacuum pipes5 (G421077) Technical Training130 Lesson 2 – ChassisBrake Booster
GENERAL Power assistance for the brakes is provided by a vacuum operated brake booster. On petrol models, the vacuum is produced by the intake manifold and an electric vacuum pump. On diesel models, the vacuum is produced by an engine driven vacuum pump. VACUUM PIPES Plastic vacuum pipes connect the brake booster to the vacuum source. Check valves are incorporated into the vacuum pipes. On petrol models there are two in-line check valves, to maintain the vacuum in the brake booster when the throttle is open and the vacuum pump is not running, and prevent fuel vapor entering the brake booster. On diesel models there is a single check valve integrated into the vacuum pipe connection with the brake booster, to maintain the vacuum in the brake booster when the vacuum pump is operating at less than the optimum. BRAKE BOOSTER The brake booster is installed in the driver side of the engine compartment, on the engine bulkhead. The brake booster is a dual diaphragm unit with a boost ratio of 7.0 : 1. The input push rod is connected to the brake pedal. The output push rod locates in the primary piston of the brake master cylinder. A vacuum pipe, installed in a grommet in the front face of the housing, connects the brake booster to the intake manifold and electric vacuum pump (petrol models) or the engine driven vacuum pump (diesel models). Brake BoosterLesson 2 – Chassis 131Technical Training (G421077)
VACUUM PUMP (4.0L AND 4.4L) Anti-vibration mount1 Pump cover2 Vacuum pump inlet3 Rubber shroud for exhaust port4 Motor cover5 Electrical connector6 On petrol models the electric vacuum pump supplements the main vacuum supply from the engine manifold. The vacuum pump is installed on a mounting bracket in the front left corner of the engine compartment. Two anti-vibration mounts on the vacuum pump are located on studs on the mounting bracket and secured with nuts. The vacuum pump consists of a radial vane pump driven by an electric motor. The rotor and vanes of the pump are made from a self-lubricating carbon based material. A stub pipe is installed in the inlet of the pump to provide a connection point for the vacuum pipe from the brake booster. A second stub pipe, which is covered by a rubber shroud, is installed in the outlet from the pump. Operation of the vacuum pump is controlled by the Engine Control Module (ECM), which uses the brake vacuum pump relay in the Battery Junction Box (BJB) to switch power to the vacuum pump. The ECM controls the time for which the vacuum pump is switched on and has in-built safeguards to protect the pump from overuse, e.g. continuous running is not allowed so a minimum delay time is specified between applications. (G421077) Technical Training132 Lesson 2 – ChassisBrake Booster
VACUUM PUMP (2.7L DIESEL) Vacuum connection (not used)1 Vacuum connection for brake booster2 Drive dog3 Seal4 Oil inlet port5 Oil return/air vent6 A vacuum pump is installed on diesel models as the air inlet system does not produce sufficient vacuum for satisfactory operation of the brake booster. The vacuum pump is a radial vane pump which is attached to the rear of the RH cylinder head and driven at half engine speed by the exhaust camshaft. The vacuum pipe from the brake booster connects to an elbow on the rim of the vacuum pump. The vacuum pump is lubricated and cooled by engine oil supplied to a port in the front face of the vacuum pump from a gallery in the cylinder head. The oil return is through a vent in the front face of the pump into a drain cavity in the cylinder head. Air extracted from the brake booster is vented into the drain cavity with the returning engine oil. Brake BoosterLesson 2 – Chassis 133Technical Training (G421077)
VACUUM PUMP CONTROL DIAGRAM (4.0L AND 4.4L) NOTE: A = Hardwired connection Battery1 Fuse 24E, battery junction box2 Vacuum pump relay3 Vacuum pump4 Engine control module5 (G421077) Technical Training134 Lesson 2 – ChassisBrake Booster
New Product Introduction 2005.0 Discovery 3 Description and Operation Technical Training en 05/2004
To the best of our knowledge, the illustrations, technical information, data and descriptions in this issue were correct at the time of going to print. The right to change prices, specifications, equipment and maintenance instructions at any time without notice is reserved as part of our policy of continuous development and improvement for the benefit of our customers. No part of this publication may be reproduced, stored in a data processing system or transmitted in any form, electronic, mechanical, photocopy, recording, translation or by any other means without prior permission of Premier Automotive Group. No liability can be accepted for any inaccuracies in this publication, although every possible care has been taken to make it as complete and accurate as possible. Copyright ©2004
PAGE Lesson 1 – General Information Lesson 2 – Chassis 9Objectives.................................................................................................................................................... 11Front Suspension........................................................................................................................................ 12GENERAL...................................................................................................................................................................... 13DAMPER MODULE - AIR SUSPENSION.................................................................................................................. 15DAMPER MODULE - COIL SPRING SUSPENSION................................................................................................. 17ANTI-ROLL BAR.......................................................................................................................................................... 18UPPER CONTROL ARM.............................................................................................................................................. 20LOWER CONTROL ARM............................................................................................................................................ 21WHEEL KNUCKLE, HUB AND BEARING ASSEMBLY......................................................................................... 23Rear Suspension.......................................................................................................................................... 24GENERAL...................................................................................................................................................................... 25DAMPER MODULE - AIR SUSPENSION.................................................................................................................. 27DAMPER MODULE - COIL SPRING SUSPENSION................................................................................................. 29ANTI-ROLL BAR.......................................................................................................................................................... 30UPPER CONTROL ARM.............................................................................................................................................. 31LOWER CONTROL ARM............................................................................................................................................ 32WHEEL KNUCKLE, WHEEL HUB AND BEARING ASSEMBLY.......................................................................... 34Wheels and Tires........................................................................................................................................ 34GENERAL...................................................................................................................................................................... 34WHEELS........................................................................................................................................................................ 34TIRES.............................................................................................................................................................................. 37TIRE PRESSURE MONITORING SYSTEM (TPMS)................................................................................................. Table of Contents 3Technical Training