2003 SSANGYONG MUSSO Service Manual

4A-12 HYDRAULIC BRAKES
LCRV (LOAD CONSCIOUS REDUCING VALVE)1 Brake Tube (from the master cylinder)
2 Brake Tube (from the rear brake)
3 LCRV Bracket
4 Bolt ........................................................... 12 Nm
5 LCRV Assembly
6 Connecting Link
7 Spring Washer
8 Nut ....................................................... 14-18 Nm

HYDRAULIC BRAKES 4A-13
Construction LCRV consists of sensing part and hydraulic control part.
1. Sensing PartIt detects the changes of vehicle height caused by vehicle load. It consists of load sensing spring and control leverwhich change according to vehicle load.
2. Hydraulic Control Part It consists of valve stem devices which controls hydraulicpressure according to load detected by sensing part.
Trouble Shooting Poor Braking Possible Cause
Air in Brake System Poor Adjustment of Sensor SpringDamaged Sensor SpringFluid Leaking from LCRV Remedy
Bleeding Adjust
Replace Replace
Possible Cause
Poor Adjustment of Sensor Spring Internal Fluid Leaking of LCRV Remedy
Adjust
Replace
Abnormal Locking

4A-14 HYDRAULIC BRAKES
LCRV SETTING METHOD
1. LCRV setting should be performed with unladen vehiclecondition.
2. Install the connecting rod (a) to the No.1 hole.
Tightening Torque 14 - 18 Nm
3. Adjust the clearance “X” to be 0 mm and tighten the bolt (c) using the lock nut (b).
Tightening Torque 14 - 18 Nm
4. Remove the connecting rod (a) from the No.1 hole and reinstall it to the No. 2 hole.
5. Place alignment marks between the lock nut (b) and adjusting screw (c) after the valve setting.

SECTION 4B
MASTER CYLINDER
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 4B-1Fastener Tightening Specifications . . . . . . . . . 4B-1
Maintenance and Repair . . . . . . . . . . . . . . . 4B-2 TABLE OF CONTENTS
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Application
Master Cylinder Nut Booster Nut
N 

 m
14 - 22 8 - 18
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 4B-2
Booster & Brake Master Cylinder . . . . . . . . . . 4B-2

4B-2 MASTER CYLINDER
1 Nut .......................................................14-22 Nm
2 Washer
3 Master Cylinder Assembly
4 Oil Level Sensor
5 Check V alve
6 Booster
7 Clevis Pin
8 Snap Pin9 Seal
10 Spacer 11 Nut ......................................................... 8-18 Nm
12 Front Tube (LH)
13 Front Tube (RH)
14 Rear Tube
15 1st Tube (Primary)
16 2nd Tube (Secondary)
MANDO
PBR
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
BOOSTER AND BRAKE MASTER CYLINDER

MASTER CYLINDER 4B-3
Removal & Installation Procedure
1. Remove the oil level sensor connector.
2. Remove the tube from the master cylinder.Installation Notice Notice
Be careful not to drop the oil when removing the tube.
If the oil is dropped, promptly sweep up.
3. Remove the booster vacuum hose. Notice
Connect fully to the end of vacuum hose when installing.
4. Loosen the nut of master cylinder. Installation Notice
5. Remove the clevis pin and disconnect the pedal and brake booster push rod. Notice
Install in the upper hole when PBR brake.
Connect the snap pin in the hole of clevis pin fully.
Apply the grease around the hole of clevis pin.
Tightening Torque 14 - 22 Nm
Tightening Torque 15 - 19 Nm

4B-4 MASTER CYLINDER
6. Loosen the nut of booster and remove the booster from thedash panel. Installation Notice
Tightening Torque 8 - 18 Nm
7. Installation should follow the removal procedure in the reverse order.
8. Add the fluid and bleed.
9. If necessary, adjust the pedal height, pedal stroke and free play.

SECTION 4C
POWER BOOSTER
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 4C-1General Specifications . . . . . . . . . . . . . . . . . . 4C-1
Maintenance and Repair . . . . . . . . . . . . . . . 4C-2 TABLE OF CONTENTS
SPECIFICATIONS
GENERAL SPECIFICATIONS
Application
Type Ratio
N 

 m
Vacuum Assisted 5.6 : 1
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . .
4C-2
Booster & Brake Master Cylinder . . . . . . . . . . 4C-2
Pedal Stroke Inspection . . . . . . . . . . . . . . . . . 4C-5