1998 SSANGYONG MUSSO Vacuum

SECTION 4A
HYDRAULIC BRAKES
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 4A-1
General Specifications . . . . . . . . . . . . . . . . . . 4A-1
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-2
Noise or Vehicle Vibration When Applied
Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-2
Pulls to One Side When Braking . . . . . . . . . . . 4A-2
Poor Braking . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-2
Increasing Pedal Stroke (Pedal Goes to
Floor) or Brake Dragging . . . . . . . . . . . . . . . 4A-3
Poor Braking of Parking Brake . . . . . . . . . . . . 4A-3
TABLE OF CONTENTS
Component Locator . . . . . . . . . . . . . . . . . . . 4A-4
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-4
ABS / ABD . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-5
Non-ABS / ABD . . . . . . . . . . . . . . . . . . . . . . . . 4A-6
Maintenance and Repair . . . . . . . . . . . . . . . 4A-7
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 4A-7
Bleeding the Brakes . . . . . . . . . . . . . . . . . . . . 4A-7
Brake Pedal . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-9
LCRV (Load Conscious Reducing Valve) . . . 4A-12
Caution: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this
cable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK
unless otherwise noted.
Type
Pedal Ratio
Pedal Stroke
Pedal Freeplay
Type
Inner Diameter
Type
Ratio
Type
I.D. of Caliper Cylinder
Thickness of Brake Pad
Thickness of Disc Plate
Type
I.D. of Caliper Cylinder
Thickness of Brake Pad
Thickness of Disc Plate
Type
Operation
SpecificationPBR Brake
4.3 : 1
132 mm
f23.81 mm
5.0 : 1
f60.4 mm
¬
f40.5 mm
9.5 mm
¬ Suspended
1 - 4 mm
Tandem Type with Lever Sensor
Vacuum Booster Type
Ventilated Disc
10 mm
24 mm
Rear Wheel Internal Expansion Type
Mechanical
SAE J1703, DOT3
SPECIFICATIONS
GENERAL SPECIFICATIONS
Brake Pedal
Master Cylinder
Brake Booster
Front Brake
Rear Brake
Parking Brake
Brake FluidMANDO Brake
4.3 : 1
138 mm
f25.4 mm
5.6 : 1
f60 mm
Solid Disc
f38.2 mm
10.0 mm
10.4 mm
Application

HYDRAULIC BRAKES 4A-11
Adjustment Procedure
1. Pedal Height
Notice
If pedal height is not in specified value, loosen the stop
lamp nut (B) and adjust the pedal height.
2. Pedal Stroke
Height (A) 150 mm (From the carpet)
Notice
If pedal stroke is not in specified value, loosen the stop bolt
and lock nut (F) and adjust the pedal stroke.
3. Free Play
Stroke (C)Mando : 138 mm
PBR : 132mm
Notice
To adjust, depress the brake pedal several times until there
is no more vacuum left in the vacuum line.
To adjust, loosen the lock nut (D) of the push rod and turn
the rod.
Free Play (E)1 - 4 mm
Inspection Procedure
1. Inspect the wear of bushing.
2. Inspect the warp and bend of brake pedal.
3. Inspect the return spring of brake pedal.
4. Inspect the conductivity when connecting the tester to the
stop lamp switch connector.

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
lBe careful not to drop the oil when removing the tube.
lIf the oil is dropped, promptly sweep up.
3. Remove the booster vacuum hose.
Notice
lConnect 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
lInstall in the upper hole when PBR brake.
lConnect the snap pin in the hole of clevis pin fully.
lApply the grease around the hole of clevis pin.
Tightening Torque 14 - 22 Nm
Tightening Torque 15 - 19 Nm

SECTION 4C
POWER BOOSTER
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 4C-1
General Specifications . . . . . . . . . . . . . . . . . . 4C-1
Maintenance and Repair . . . . . . . . . . . . . . . 4C-2
TABLE OF CONTENTS
SPECIFICATIONS
GENERAL SPECIFICATIONS
Application
Type
RatioN
· ·· ·
·m
Vacuum Assisted
5.6 : 1
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 4C-2
Booster & Brake Master Cylinder . . . . . . . . . . 4C-2
Pedal Stroke Inspection . . . . . . . . . . . . . . . . . 4C-5

POWER BOOSTER 4C-3
Removal & Installation Procedure
1. Remove the oil level sensor connector.
2. Remove the tube from the master cylinder.
Installation Notice
Notice
lBe careful not to drop the oil when removing the tube.
lIf the oil is dropped, promptly sweep up.
3. Remove the booster vacuum hose.
Notice
lConnect 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
lInstall in the upper hole when PBR brake.
lConnect the snap pin in the hole of clevis pin fully.
lApply the grease around the hole of clevis pin.
Tightening Torque 14 - 22 Nm
Tightening Torque 15 - 19 Nm

6E-4 STEERING WHEEL AND COLUMN
6. Disconnect each connectors.
7. Remove the vacuum hose from the ignition switch(Diesel
only) .
9. Remove the lower shaft by removing the bolt of the steering
column shaft.
Installation Notice
Tightening Torque 9 - 14 Nm
8. Remove the combination switch assembly.
10. Remove the dash panel mounting bolts.
Installation Notice
Tightening Torque 30 - 40 Nm

MANUAL & SEMIAUTO-HVAC 7B/C-11
Evacuating Refrigeration System
1. Connect the manifold gauge to the charging valves.
2. Connect the center hose of the gauge to the vacuum pump.
3. Run the vacuum pump and open both high and low pressure
hand valves.
4. Run the vacuum pump 15-20 minutes.
5. Check that both high and low pressure gauge reading is
more than (-) 750mmHg of vacuum and close both valves.
Check for Refrigerant Leaks
1. Connect the center hose of the gauge to the refrigerant
tank.
2. Open the high pressure valve of the gauge to charge with
refrigerant gas.
3. Charge until the low pressure gauge reads 1.0kg/cm and
close the valve.
4. Using a gas leak detector, check the system for leaks.
5. If a leak is found, replace a O-ring or repair the faulty
connection
2
6. Stop the vacuum pump and wait about 5 minutes.
7. After 5 minutes, check that low pressure gauge reading is
changed or not.
8. If low pressure gauge reading is changed, check the system
for leaks and repair as necessary and repeat steps from
‘1’ to ‘7’.
9. If there are no changes in low pressure gauge reading,
disconnect the vacuum pump.
4. After the high pressure gauge reading drops below 3.5kg/
cm2 , slowly open the low pressure valve.
5. When both high and low pressure gauges reading drops to
0 kg/cm, discharging is completed.