1998 SSANGYONG MUSSO brakes

4E-2 REAR DISC BRAKES
1 Rear Brake Disc Assembly
2 Brake Pad
3 Brake Caliper
4 Gasket ................................................... Replace
5 Bolt........................................................... 20 Nm
6 Gasket ................................................... Replace
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
REAR DISC BRAKE
Preceding Work : Removal of wheels and tires
7 Brake Hose
8 Gasket ................................................... Replace
9 Eye-hose Bolt......................................15-18 Nm
10 Washer
11 Bolt....................................................85-105 Nm

REAR DISC BRAKES 4E-3
Tightening Torque 15 - 18 Nm
Tightening Torque 85 - 105 Nm
Removal & Installation Procedure
1. Remove the eye-hose bolt and disconnect the hose.
Installation Notice
2. Unscrew the mounting bolts and remove the brake caliper
assembly.
Installation Notice
3. Pull out the brake pads. Replace pads if necessary.
Notice
Always change the all pads on one wheel at a time.
4. Installation should follow the removal precedure in the
reverse order.
5. Bleed the air from the system.

4E-4 REAR DISC BRAKES
Standard
10.4 mmWear Limit
9.3 mm
UNIT REPAIR
REAR DISC BRAKE
Inspection Procedure
1. Clean all components and visually check the followings.
lCheck the cylinder and piston for wear, rust or damage.
lCheck the caliper body and guide pin for wear, damage
or crank.
lCheck the pads for uneven wear or oiliness.
lCheck the boots for damage or tear.
Standard
f40.5 mm
f38.2 mmWear Limit
f41.5 mm
f39.2 mm
2. Measure caliper housing inner diameter.
3. Measure pad thickness.
Standard
9.5 mmWear Limit
2.0 mm
Notice
Always change the all pads on one wheel at a time.
4. Measure rotor disc thickness.
5. Check the rotor disc for score or runout.
Item
With PBR
With MANDO

ANTILOCK BRAKE SYSTEM 4F-7
ABD SYSTEM DESCRIPTION
General:
The Automatic Brake Differential Lock (ABD) is a traction system by means of brake intervention only, available in
a low speed range (< 60kph).
It workes on m-split roads with sidewise different friction coefficients.
The spinning driven wheel is braked and the drive torque can be transferred to the wheel on the high- m side.
During ABD active, the ABD information lamp is blinking.
The temperature of the brakes is calculated by a mathematical model and ABD is switched passive if the calculated
temperature is greater than a threshold value(500°C).
ABD is permitted again, when the calculated temperature is less than 350°C.
Control Algorithm:
The input signals for the control algorithm are the filtered
wheel speed signals from the ABS speed processing.
With the speed difference of the driven wheels, the control
deviation is calculated.
If the control deviation exceeds a certain threshold value,
the wheel with the greater slip is braked actively.
The threshold value depends on the vehicle speed:
It is reduced with increasing vehicle speed down to a constant
value.
Pressure Modulation:
Depending on the control deviation and the wheel acceleration of the spinning wheel, pressure increase, hold and
decrease are made.
The pressure modulation is done with the conventional control with the valves. ASV, USV, EV and AV according
the the following table:
Speed Range:
ABD is available in the speed range £ 60 kph.
Above 60 kph vehicle speed, ABD is passive.
It is possible to initiate ABD operation up to a vehicle speed of 55kph.
Increase
Open Open Open ASVDecrease Hold
Closed Closed Closed
Closed Closed Open
Open Closed Closed USV
EV
AV
Speed difference driven wheels [kph]
18
6
1260ABD operation
Vehicle
speed
[kph]

4F-8 ANTILOCK BRAKE SYSTEM
Temperature Model:
ABD operation is a high thermal load for the brakes.
To avoid any damages at the brakes, the disk temperature is calculated with a mathematical model for each driven
wheel separately. After ignition on, the calculation starts with 30°C and then three different phases are evaluated
separately and added:
ABD operation, braking and coling phase.
If the temperature is highter than 500°C, ABD is disabled for this wheel.
It is permitted again, if the model has calculated down the 350°C.
Lamp Concepts:
The system is equipped with an ABD information lamp, which is blinking during ABD operation.
The activation of the EBD, ABS warning lamp and the ABD info lampo is summarized in the following table:
Ignition
ONABS
OperationABD
OperationSystem failure
(EBD,ABS or ABD are
not distinguished)ABD passive due
to temperature
model
ABS warning
lamp
ABD info
lamp
EBD warning
lamp2s on for lamp
check
2s on for lamp
check
2s on for lamp
checkOFF
EBD operation
/ OFFOFFOFF
Dlinking
(Flashing)
OFFON
OFF
ONOFF
OFF
OFF