REAR AXLE 3D-3
SSANGYONG MY2002
DIAGNOSTIC INFORMATION AND PROCEDURES
Lack of Oil
Low Viscosity of Oil
Inferior Oil
Excessive Backlash of Ring Gears
Worn or Damaged Tooth of Ring and Pinion Gear
Worn or Damaged Tooth of Drive Pinion Gear
Wear of Side Bearing and Side Gear Spline
Bending of Axle Housing
Distortion of Differential Case
Wear of Pinion Shaft
Incorrect Drive Pinion Preload.
Incorrect Contact of Ring Gear and Pinion
Excessive Oil
Fault Seal of Carrier Contact Surface
Axle Housing Crack
Worn or Damaged Oil Seal
Worn or Damaged Tooth of Pinion or Side Gear
Wear of Pinion Shaft
Excessive Backlash of Pinion Gear and Side Gear
Excessive End-Play of Rear Axle Shaft
Incorrect Contact of Side Gear and Differential Case
Axle Housing Crack
Distortion or Poor Installation of Drive pinion Oil Seal
Damaged of Torn Drive Pinion Oil Seal
Loosened Bearing Collar
Worn or Damaged Universal Joint
Worn or damaged Axle Shaft Bearing
Lock of Oil
Insufficient Backlash of Gears
Excessive Preload of BearingReplenish
Replace
Replace
Adjust
Replace
Replace
Replace
Replace
Replace
Replace
Adjust
Reassembly
Adjust
Correct
Replace
Replace
Replace
Replace
Replace
Adjust
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replenish
Adjust
Adjust Checks Phenomena
Noise
(During Straight
Driving)
Oil Leakage
Noise (During Turning)
Heating
Action
REAR AXLE 3D-19
SSANGYONG MY2002
1 Drive Pinion Lock Nut
...........................240 - 310 Nm (177 - 229 lb-ft)
2 Washer
3 Companion Flange
4 Pinion Oil Seal
5 Bearing Slinger
6 Bearing
7 Shim
8 Shim
9 Bearing Cup
10 Breather Nipple
11 Rear Axle Housing
12 Oil Drain Plug............ 28 - 42 Nm (21 - 31 lb-ft)
13 Shim
14 Bearing
15 Drive Pinion
16 Bearing Cap17 Bolt......................... 87 - 124 Nm (64 - 94 lb-ft)
18 Bearing
19 Shim
20 Ring Gear
21 Shaft Lock Pin
22 Differential Case
23 Ring Gear Mounting Bolt
.................................. 75 - 90 Nm (55 - 66 lb-ft)
24 Thrust Washer
25 Differential Pinion
26 Thrust Washer
27 Side Gear
28 Differential Shaft
29 Housing Cover
30 Bolt............................ 38 - 46 Nm (28 - 34 lb-ft)
31 Oil Filler Plug............ 28 - 42 Nm (21 - 31 lb-ft)
REAR AXLE 3D-23
SSANGYONG MY2002
Assembly
1. Clean all parts and check the followings.
Check the ring gear, drive pinion for wear and
damage. If damaged, replace it as a set.
Check the bearing for sticks, wear, noise and
turning resistance.
Check the side gear, pinion, pinion shaft and
thrust washer for wear and damage.
Check the differential carrier for crack and wear
(bearing contact surface). Check the gear case
for crack.
KAA3D590
KAA3D600
KAA3D620
KAA3D610
2. Assemble the drive pinion assembly to the axle
housing and then tighten the pinion lock nut.
Installation Notice
Tightening torque 240 - 310 Nm
Tightening Torque75 - 90 Nm
(55 - 66 lb-ft) 3. Assemble the differential carrier assembly. Align
the ring gear to the mark of differential carrier,
tighten the fixing bolts.
Installation Notice
4. Measure the backlash of side gear and pinion gear.
Specified value 0 - 0.5 mm
SECTION 4A
HYDRAULIC BRAKES
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.
TABLE OF CONTENTS
Description and Operation...................................4A-2
General Description.............................................4A-2
Diagnostic Information and Procedures..............4A-3
Brake System Testing ..........................................4A-3
Brake Hose Inspection.........................................4A-3
Brake Warning Lamp Circuit Description..............4A-4
Brake Warning Lamp Diagnosis...........................4A-5
LCRV (Load Conscious Reducing Valve)..............4A-8
Repair Instructions..............................................4A-10On-Vehicle Service...............................................4A-10
Manual Bleeding The Brakes.............................4A-10
Front Brake Hose...............................................4A-13
Rear Brake Hose...............................................4A-13
Stoplamp Switch................................................4A-14
Brake Pedal.......................................................4A-14
Specifications.....................................................4A-15
General Specification .........................................4A-15
Fastener Tightening Specifications.....................4A-16
SSAMGYONG MY2002
4A-2 HYDRAULIC BRAKES
DESCRIPTION AND OPERATION
GENERAL DESCRIPTION
Brake fluid should meet the DOT 4 specification. Use
only clear fluid from a sealed container.
Fluid that is exposed to the air will absorb moisture.
Water in the brake fluid will cause the fluid to boil and
the rubber components to deteriorate.
Thoroughly clean the master cylinder reservoir cap be-
fore removing it. Do not let any dirt or foreign material
fall into the fluid reservoir.
There is a brake fluid level switch under the master
cylinder reservoir.When the fluid level is low, the BRAKE lamp in the
instrument cluster will turn on.
The correct brake fluid level is marked on the both
side of the brake fluid reservoir. If the fluid level is
below the MIN indicator mark, check the hydraulic brake
system for leaks. Fix any leaks. Then refill the reservoir
to the MAX indicator mark.
The hydraulic brake system is parallel split on Antilock
Brake Systems. This means the left front and left rear
brakes are on one hydraulic circuit and the right front
and right rear are on the other.
HYDRAULIC BRAKES 4A-3
SSANGYONG MY2002
DIAGNOSTIC INFORMATION AND PROCEDURES
BRAKE SYSTEM TESTING
Brakes should be tested on a dry, clean, reasonably
smooth and level roadway. A true test of brake perfor-
mance cannot be made if the roadway is wet, greasy,
or covered with loose dirt which can cause tires not to
grip the road unequally. Testing also will be inaccurate
on a crowned roadway because the wheels tend to
bounce.
Test the brakes at different vehicle speeds with both
light-and heavy-pedal pressure; however, avoid locking
the brakes and sliding the tires. Locked brakes and
slid-ing tires do not indicate brake efficiency since
heavily braked but turning wheels will stop the vehicle
in less distance than locked brakes. More tire-to-road
friction is present with a heavily braked, turning tire
than with a sliding tire.
Because of the high deceleration capability, a firmer
pedal may be felt at higher deceleration levels.
There are three major external conditions that affect
brake performance:
•Tires having unequal contact and grip of the road
will cause unequal braking. Tires must be equally
inflated, and the tread pattern of the right and the
left tires must be approximately equal.
Unequal loading of the vehicle can affect the brake
performance since the most heavily loaded wheels
require more braking power, and thus more braking
effort, than the others.
Misalignment of the wheels, particularly conditions
of excessive camber and caster, will cause the
brakes to pull to one side.
To check for brake fluid leaks, hold constant foot pres-
sure on the pedal with the engine running at idle and
the shift lever in NEUTRAL. If the pedal gradually falls
away with the constant pressure, the hydraulic system
may be leaking. Perform a visual check to confirm any
suspected leaks.
Check the master cylinder fluid level. While a slight
drop in the reservoir level results from normal lining
wear, an abnormally low level indicates a leak in the
system. The hydraulic system may be leaking either
internally or externally. Refer to the procedure below
to check the master cylinder. The system may appear
to pass this test while still having a slight leak. If the
fluid level is normal, check the vacuum booster pushrod
length. If an incorrect pushrod length is found, adjust
or replace the rod.Check the master cylinder using the following proce
dure:
Check for a cracked master cylinder casting or a
brake fluid leak around the master cylinder. Leaks
are indicated only if there is at least one drop of
fluid. A damp condition is not abnormal.
Check for a binding pedal linkage and for an
incorrect pushrod length. If both of these parts are
in satisfactory condition, disassemble the master
cylinder and check for an elongated or swollen
primary cylinder or piston seals. If swollen seals
are found, substandard or contaminated brake fluid
should be suspected. If contaminated brake fluid
is found, all the components should be
disassembled and cleaned, and all the rubber
components should be replaced. All of the pipes
must also be flushed.
Improper brake fluid, or mineral oil or water in the fluid,
may cause the brake fluid to boil or cause deterioration
of the rubber components. If the primary piston cups in
the master cylinder are swollen, the rubber parts have
deteriorated.
If deterioration of the rubber is evident, disassemble
all the hydraulic parts and wash the parts with alcohol.
Dry these parts with compressed air before reassembly
to keep the alcohol out of the system. Replace all the
rubber parts in the system, including the hoses. When
working on the brake mechanisms, check for fluid on
the linings. If excessive fluid is found, replace the
linings.
If the master cylinder piston seals are in satisfactory
condition, check for leaks or excessive heat conditions.
If these conditions are not found, drain the fluid, flush
the master cylinder with brake fluid, refill the master
cylinder, and bleed the system.
BRAKE HOSE INSPECTION
The hydraulic brake hoses should be inspected at least
twice a year. The brake hose assembly should be
checked for road hazard damage, cracks, chafing of
the outer cover, and for leaks or blisters. Inspect the
hoses for proper routing and mounting. A brake hose
that rubs on a suspension component will wear and
eventually fail. A light and a mirror may be needed for
an adequate inspection. If any of the above conditions
are observed on the brake hose, adjust or replace the
hose as necessary.
SSAMGYONG MY2002
4A-8 HYDRAULIC BRAKES
YAD4A170
YAD4A180
LCRV (LOAD CONSCIOUS
REDUCING VALVE)
LCRV consists of sensing part and hydraulic control
part.
1. Sensing Part
It detects the changes of vehicle height caused
by vehicle load. It consists of load sensing spring
and control lever which change according to
vehicle load.
2. Hydraulic Control Part
It consists of valve stem devices which controls
hydraulic pressure according to load detected by
sensing part.
YAD4A190
4. Place alignment marks between the lock nut (b)
and adjusting screw (c) after the valve setting.
5. LCRV setting should be performed with unloaded
vehicle condition.
Setting Method
1. Install the connecting rod (a) to the No.1 hole.
2. Adjust the clearance “X” to be 0mm and tighten
the bolt (c) using the lock nut (b).
Installation Notice
Tightening Torque14 - 18 Nm
(10 - 13 lb-ft)
3. Remove the connecting rod (a) from the No.1 hole
and reinstall it to the No.2 hole.
Installation Notice
Tightening Torque14 - 18 Nm
(10 - 13 lb-ft)
