parking brake SUZUKI JIMNY 2005 3.G Service User Guide

Downloaded from www.Manualslib.com manuals search engine REAR SUSPENSION 3E-21
11) Connect brake flexible hose (2) to bracket on axle housing
and secure it with E-ring (1).
12) Connect brake pipe to brake flexible hose and tighten brake
pipe flare nut to specified torque.
Tightening torque
Brake pipe flare nut
(a) : 16 N·m (1.6 kg-m, 11.5 lb-ft)
13) Clean mating surface of axle housing (2) (right & left) with
brake back plate and apply sealant as shown.
“B” : Sealant 99000-31090
14) Apply grease to axle shaft oil seals lip (1) (right & left) as
shown.
“A” : Grease 99000-25010
15) Install rear axle shafts, brake shoes, brake drums and
wheels. For details, refer to “Rear Axle Shaft and Wheel
Bearing” in this section.
16) Lower hoist.
17) Tighten right and left trailing arm nuts and shock absorber
lower bolts to specified torque.
Tighten lateral rod bolt and nut to specified torque.
Tightening torque
Trailing arm nuts and lateral rod bolt and nut
(a) : 90 N·m (9.0 kg-m, 65.0 lb-ft)
Shock absorber lower bolts
(b) : 85 N·m (8.5 kg-m, 61.5 lb-ft)
18) Check to ensure that brake drum is free from dragging and
proper braking is obtained.
19) Perform brake test (foot brake and parking brake). (For
brake test, see Section 5.)
20) Check each installed part for oil leakage.
NOTE:
When tightening these bolts and nuts, be sure that vehi-
cle is off hoist and in non loaded condition.
1. Shock absorber
2. Trailing arm
3. Lateral rod

Downloaded from www.Manualslib.com manuals search engine BRAKES 5-1
6F1
6F2
6G
6H
6K
7A
7A1
7B1
7C1
7D
7E
5
9
10
10A
10B
9
10
10A
10B
SECTION 5
BRAKES
CONTENTS
General Description ......................................... 5-3
Diagnosis .......................................................... 5-4
Road Testing Brakes ...................................... 5-4
Brake Fluid Leaks .......................................... 5-4
Substandard or Contaminated Brake Fluid .... 5-4
Diagnosis Table ............................................. 5-5
Brake Pedal Free Height Adjustment ............. 5-8
Brake Pedal Play Check ................................ 5-8
Stop Light Switch Adjustment ........................ 5-8
Excessive Pedal Travel Check ....................... 5-9
Front Brake Disc Check ................................. 5-9
Front Brake Pad Check .................................. 5-9
Rear Brake Shoe Check .............................. 5-10
Master Cylinder and Brake Fluid Level
Check ........................................................... 5-10
Rear Drum Brake Shoe Adjustment ............. 5-11
Parking Brake Inspection and Adjustment ... 5-11
Booster Operation Check ............................. 5-12Fluid Pressure Test
(If Equipped with LSPV) ............................... 5-15
On-Vehicle Service ........................................ 5-17
Air Bleeding of Brake System ...................... 5-17
Brake Hose and Pipe Inspection.................. 5-18
Front Disc Brake .......................................... 5-19
Brake pad ................................................. 5-20
Caliper assembly...................................... 5-22
Brake Disc.................................................... 5-26
Rear Brake ................................................... 5-29
Brake drum............................................... 5-29
Brake shoe ............................................... 5-32
Wheel Cylinder............................................. 5-33
Brake back plate ...................................... 5-34
Master Cylinder .............................................. 5-36
Master Cylinder Reservoir ........................... 5-36
Master Cylinder Assembly ........................... 5-37 WARNING:
For lifting point of vehicle, refer to Section 0A.
WARNING:
For vehicles equipped with Supplement Restraint (Air Bag) System:
Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
NOTE:
When inspecting and servicing vehicle equipped with ABS, be sure to refer to section 5E first.
All brake fasteners are important attaching parts in that they could affect the performance of vital
parts and systems, and/or could result in major repair expense. They must be replaced with one of
same part number or with an equivalent part if replacement becomes necessary. Do not use a
replacement part of lesser quality or substitute design. Torque values must be used as specified
during reassembly to assure proper retention of all parts. There is to be no welding as it may result
in extensive damage and weakening of the metal.

Downloaded from www.Manualslib.com manuals search engine 5-2 BRAKES
Master Cylinder ............................................ 5-38
Fill Reservoir ................................................ 5-40
LSPV (Load Sensing Proportioning Valve)
Assembly (If Equipped) ................................. 5-42
LSPV Assembly ........................................... 5-43
P (Proportioning) Valve ................................. 5-44
Brake Booster ................................................ 5-45
Inspection and adjustment ....................... 5-46
Brake Hose/Pipe .......................................... 5-48Front brake hose/pipe ............................... 5-48
Rear Brake Hose/Pipe .................................. 5-51
Parking Brake Lever/Cable ........................... 5-52
Parking brake lever ................................... 5-52
Parking Brake Cable ..................................... 5-53
Tightening Torque Specifications ................. 5-54
Required Service Material.............................. 5-54
Special Tool .................................................... 5-55

Downloaded from www.Manualslib.com manuals search engine BRAKES 5-3
General Description
When the foot brake pedal is depressed, hydraulic pressure is developed in the master cylinder to actuate pis-
tons (two in front and four in rear).
The master cylinder is a tandem master cylinder. Three (or two) brake pipes are connected to the master cylin-
der and they make two independent circuits. One connects front brakes (right and left) and the other connects
rear brakes (right and left).
The load sensing proportioning valve (LSPV), the proportioning and bypass (P & B) valve or proportioning (P)
valve is included in these circuits between the master cylinder and the rear brake.
In this brake system, the disc brake type is used for the front wheel brake and a drum brake type (leading/trailing
shoes) for the rear wheel brake.
The parking brake system is mechanical. It applies brake force to only rear wheels by means of the cable and
mechanical linkage system. The same brake shoes are used for both parking and foot brakes.
NOTE:
The figures shows left-hand steering vehicle.
WARNING:
If any hydraulic component is removed or brake line disconnected, bleed the brake system. The
torque values specified are for dry, unlubricated fasteners.
[A] : Vehicle without ABS, LSPV 1. Master cylinder 4. P & B valve F: Forward
[B] : Vehicle with LSPV 2. 5-way joint (4-way joint) 5. P (Proportioning) valve
[C] : Vehicle with ABS 3. LSPV (Load Sensing Proportion-
ing valve)6. Hydraulic Unit

Downloaded from www.Manualslib.com manuals search engine 5-6 BRAKES
Excessive pedal travel
(Pedal stroke too
large)Partial brake system failure Check brake systems and repair as
necessary.
Insufficient fluid in master cylinder reservoirs Fill reservoirs with approved brake
fluid.
Check for leaks and air in brake
systems.
Check warning light. Bleed system
if required.
Air in system (pedal soft/spongy) Bleed system.
Rear brake system not adjusted (malfunctioning
auto adjusting mechanism)Repair auto adjusting mechanism.
Adjust rear brakes.
Bent brake shoes Replace brake shoes.
Worn rear brake shoes Replace brake shoes.
Dragging brakes (A
very light drag is
present in all disc
brakes immediately
after pedal is released)Master cylinder pistons not returning correctly Repair master cylinder.
Restricted brake tubes or hoses Check for soft hoses or damaged
tubes and replace with new hoses
and/or new brake tubes.
Incorrect parking brake adjustment on rear
brakesCheck and adjust to correct specifi-
cations.
Weakened or broken return springs in the brake Replace.
Sluggish parking-brake cables or linkage Repair or replace.
Wheel cylinder or caliper piston sticking Repair as necessary.
Malfunctioning ABS, if equipped with ABS Check system and replace as nec-
essary.
Pedal pulsation (Pedal
pulsates when
depressed for brak-
ing.) Damaged or loose wheel bearings Replace wheel bearings.
Distorted steering knuckle or rear axle shafts Replace knuckle or rear axle shaft.
Excessive disc lateral runout Check per instructions. If not within
specifications, replace or machine
the disc.
Parallelism not within specifications Check per instructions. If not with
specifications, replace or machine
the disc.
Rear drums out of round. Check runout.
Repair or replace drum as neces-
sary.
Braking noise
Glazed shoe linings, or foreign matters stuck to
liningsRepair or replace brake shoe.
Worn or distorted shoe linings Replace brake shoe (or pad).
Loose front wheel bearings Replace wheel bearing.
Distorted backing plates or loose mounting
boltsReplace or retighten securing bolts.
Brake warning light
turns on after engine
startParking brake applied Release parking brake and check
that brake warning light turns off.
Insufficient amount of brake fluid Add brake fluid.
Brake fluid leaking from brake line Investigate leaky point, correct it
and add brake fluid.
Brake warning light circuit faulty Repair circuit. Condition Possible Cause Correction

Downloaded from www.Manualslib.com manuals search engine BRAKES 5-7
Brake warning light
turns on when brake
is appliedBrake fluid leaking from brake line Investigate leaky point, correct it
and add brake fluid.
Insufficient amount of brake fluid Add brake fluid.
Faulty P & Differential valve (Differential switch) Replace.
Brake warning light
fails to turn on even
when parking brake is
appliedBulb burnt out Replace bulb.
Brake warning light circuit open Repair circuit.
ABS warning light
does not turn on for 2
sec. after ignition
switch has turned ON.Bulb burnt out Replace bulb.
ABS warning light circuit open, if equipped with
ABS (including check relay)Check system referring to “TABLE-
A” in Section 5E.
ABS warning light
remains on after igni-
tion switch has turned
on for 2 sec.Malfunctioning ABS, if equipped with ABS Check system referring to “TABLE-
B” in Section 5E. Condition Possible Cause Correction

Downloaded from www.Manualslib.com manuals search engine BRAKES 5-11
Rear Drum Brake Shoe Adjustment
Rear brake has self-adjusting mechanism but it does require
adjustment for proper drum to shoe clearance when brake shoe
has been replaced or brake drum has been removed for some
other service.
Adjustment is automatically accomplished by depressing brake
pedal about 30 times with approximately 30 kg (66 Ibs) load after
all parts are installed.
Then check brake drum for dragging and brake system for proper
performance. After lowering vehicle from hoist, brake test should
be performed.
Parking Brake Inspection and Adjustment
INSPECTION
Hold center of parking brake lever grip and pull it up with 20 kg
(44 Ibs) force.
With parking brake lever pulled up as above, count ratchet
notches.
There should be 6 to 8 notches.
Also, check if both right and left rear wheels are locked firmly. To
count number of notches easily, listen to click sounds that ratchet
makes while pulling parking brake lever without pressing its but-
ton.
One click sound corresponds to one notch.NOTE:
Be sure to use particular brake fluid either as indicated
on reservoir cap of that vehicle or recommended in
owner’s manual which comes along with that vehicle.
Use of any other fluid is strictly prohibited.
Fluid level should be between MIN and MAX lines marked
on reservoir.
When brake warning lamp lights sometimes during driv-
ing, replenish fluid to MAX level.
When fluid decreases quickly, inspect brake system for
leakage.
Correct leaky points and then refill to specified level.
CAUTION:
Do not use shock absorber fluid or any other fluid which
contains mineral oil. Do not use a container which has
been used for mineral oil or a container which is wet from
water. Mineral oil will cause swelling and distortion of
rubber parts in hydraulic brake system and water mixed
into brake fluid will lower fluid boiling point. Keep all fluid
containers capped to prevent contamination.

Downloaded from www.Manualslib.com manuals search engine 5-12 BRAKES
If number of notches is out of specification, adjust cable by refer-
ring to adjustment procedure described on the following so as to
obtain specified parking brake stroke.
ADJUSTMENT
After confirming that above 5 conditions are all satisfied, adjust
parking brake lever stroke by loosening or tightening adjusting nut
(3) indicated in figure.
Parking brake stroke (when lever is pulled up at 200 N (20
kg, 44 Ibs) : 6 – 8 notches
Booster Operation Check
There are two ways to perform this inspection, with and without a
tester. Ordinarily, it is possible to roughly determine its condition
without using a tester.NOTE:
Check tooth tip of each notch for damage or wear. If any
damage or wear is found, replace parking brake lever.
NOTE:
Make sure for following conditions before cable adjust-
ment.
No air is trapped in brake system.
Brake pedal travel is proper.
Brake pedal has been depressed a few times with
about 30 kg (66 Ibs) load.
Parking brake lever (1) has been pulled up a few times
with about 20 kg force.
Rear brake shoes are not worn beyond limit, and self
adjusting mechanism operates properly.
NOTE:
Check brake drum for dragging after adjustment.
2. Brake cable
NOTE:
For this check, make sure that no air is in hydraulic line.

Downloaded from www.Manualslib.com manuals search engine BRAKES 5-29
Rear Brake
Brake drum
REMOVAL
1) Hoist vehicle and pull up parking brake lever.
2) Remove wheel.
3) Release parking brake lever.
4) Loosen parking brake cable adjusting nut (1).
1. Brake back plate 5. Shoe return spring lower 9. Shoe hold down pin
2. Brake shoe 6. Adjuster lever 10. Wheel cylinder
: Apply brake fluid to piston cap
3. Spring and rod assembly 7. Adjuster spring Tightening torque
4. Parking brake shoe lever 8. Shoe hold down spring

Downloaded from www.Manualslib.com manuals search engine BRAKES 5-31
Brake Shoe
Where lining is worn out beyond service limit, replace shoe.
If one of brake linings is to service limit, all linings must be
replaced at the same time.
Brake shoe thickness (lining + shoe rim) “a”
Standard (lining + rim) : 6.5 mm (0.26 in.)
Service limit : 3.0 mm (0.12 in.)
INSTALLATION
1) Before installing brake drum, check outer diameter of brake
shoes. If it is not within value as specified below, adjust it to
specification by turning adjuster (1).
Outer diameter of brake shoes
“a” : 219.4 - 219.7 mm (8.638 - 8.650 in.)
2) Install brake drum after making sure that inside of brake
drum and brake shoes are free from dirt and oil.
3) Upon completion of all jobs, depress brake pedal with about
30 kg (66 lbs) load about 30 times so as to obtain proper
drum-to-shoe clearance.
Adjust parking brake cable.
4) Install wheel and tighten wheel nuts to specified torque.
Tightening torque
Wheel nuts
(a) : 95 N·m (9.5 kg-m, 69.0 lb-ft)
5) Check to ensure that brake drum is free from dragging and
proper braking is obtained. Then remove vehicle from hoist
and perform brake test (foot brake and parking brake). NOTE:
Never polish lining with sandpaper. If lining is polished
with sandpaper, hard particles of sandpaper will be
deposited in lining and may damage drum. When it is
required to correct lining, replace it with a new one.
NOTE:
See NOTE at the beginning of this section.
2. Spring and rod assembly
3. Brake shoes