MITSUBISHI 380 2005 Workshop Manual

DISC BRAKE ASSEMBLY
BASIC BRAKE SYSTEM35A-36
DISASSEMBLY AND ASSEMBLY <REAR>M1351008200076
DISASSEMBLY STEPS
1. PAD & SHIM ASSEMBLY
2. CLIP
3. N/A
>>A<<4. REAR BRAKE BOLT
5. CALIPER BODY
6. GUIDE PIN7. PIN BOOT
8. CALIPER SUPPORT
<<A>>9. PISTON
<<A>>10. PISTON BOOT
<<B>>11. PISTON SEAL
12. BLEEDERDISASSEMBLY STEPS (Continued)

DISC BRAKE ASSEMBLY
BASIC BRAKE SYSTEM35A-37
LUBRICATION POINTS
DISASSEMBLY SERVICE POINTS
When disassembling the disc brakes, disassemble both
sides (left and right) as a set.
.

DISC BRAKE ASSEMBLY
BASIC BRAKE SYSTEM35A-38
<<A>> PISTON BOOT/CALIPER PISTON
REMOVAL
Blow air little by little to remove the piston. The piston will
pop out if a force of air is applied suddenly.
Place a piece of wood, etc. against the caliper body as shown.
Blow compressed air through the brake hose connection hole
to remove the piston boot and piston.
.
<<B>> PISTON SEAL REMOVAL
Do not use a flat-tipped screwdriver or similar tool to
remove piston seal. These may damage the inner side of
the cylinder.
1. Remove the piston seal with your finger tip.
2. Clean piston surface and inner cylinder with alcohol or brake
fluid DOT 3 or DOT 4.
ASSEMBLY SERVICE POINT
.
>>A<< REAR BRAKE PIN INSTALLATION
Attach a guide pin (with &#34;g&#34; on the bolt head) at the bleeder nip-
ple side of the caliper body and a lock pin (with &#34;l&#34; on the bolt
head) at the opposite side.
INSPECTIONM1351008300039
Check the cylinder for wear, damage or rust.
Check the piston surface for wear, damage or rust.
Check the caliper body or sleeve for wear.
Check the pad for damage or adhesion of grease, check the
backing metal for damage.
.

DISC BRAKE ASSEMBLY
BASIC BRAKE SYSTEM35A-39
PAD WEAR CHECK
Always replace both brake pads on each wheel as
a set (both front wheels or both rear wheels). Fail-
ure to do so will result in uneven braking, which
may cause unreliable brake operation.
If there is significant difference in the thickness of
the pads on the left and right sides, check the slid-
ing condition of the piston and slide pins.
1. Measure thickness at the thinnest and most worn area of the
pad.
Standard value: 10 mm (0.39 inch)
Minimum limit: 2.0 mm (0.08 inch)
2. Replace the pad assembly if pad thickness is less than the
limit value.

SPECIFICATIONS
BASIC BRAKE SYSTEM35A-40
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONSM1351009600390
GENERAL SPECIFICATIONSM1351000200362
ITEM SPECIFICATION
Brake line
Brake tube flare nut 15
2 Nm
Brake pedal
Brake booster nut 14
2 Nm
Brake pedal bolt 13
2 Nm
Front disc brake
Brake hose connector bolt 30
4 Nm
Caliper bleeder 12.5
1.5 Nm
Front brake assembly mounting bolt 100
10 Nm
Front brake bolt (guide pin bolt) 36.5
1.5 Nm
Master cylinder assembly and brake booster
Brake booster nut 14
2 Nm
Brake master cylinder mounting nut 25
2 Nm
Rear disc brake
Brake hose connector bolt 30
4 Nm
Caliper bleeder 12.5
1.5 Nm
Rear brake assembly mounting bolt 60
5 Nm
Rear brake bolt (guide pin bolt) 36.5
1.5 Nm
ITEM SPECIFICATION
Master
cylinderType Tandem type
I.D. mm 25.4
Brake
boosterType Vacuum type, tandem
Effective dia. of power
cylinder mm 205 + 230
Boosting ratio 6.5
Rear wheel hydraulic control method Electronic brake-force distribution (EBD)
Front brakes Type Floating caliper, Aluminium housing, 2 piston, ventilated disc
Disc effective dia
thickness
mm 296 28.0
Wheel cylinder I.D. mm 42.0 x 2
Pad thickness mm 10.0
Clearance adjustment Automatic

SPECIFICATIONS
BASIC BRAKE SYSTEM35A-41
SERVICE SPECIFICATIONSM1351000300477
LUBRICANTSM1351000400429
Rear brakes Type Floating caliper, Aluminium housing, 1 piston, ventilated disc
Disc effective dia
thickness
mm 303 18
Wheel cylinder I.D. mm 40.5
Pad thickness mm 10.0
Clearance adjustment Automatic ITEM SPECIFICATION
ITEM STANDARD VALUE LIMIT
Brake pedal height mm A/T 168.5
171.5
M/T 169.4 172.4
Brake pedal free play mm 3
8
Brake pedal to floor board clearance mm 110 or more
Disc brake pad thickness mm 10.0 Minimum 2.0
Disc brake disc thickness
mm Front 28.0 Minimum 26.4
Rear 18.0 Minimum 16.4
Disc brake disc run-out
mm Front
0.1
Rear
0.04
Disc brake drag force N Front 64 or less
Rear 54 or less
Hub end play mm 0.05
Brake booster push rod protruding length mm.
[When applying negative pressure of 66.7 kPa to the
brake booster]5.0
0.1
ITEM SPECIFIED LUBRICANT
Brake fluid DOT3 or DOT4
Piston boot, piston seal Repair kit grease
Front brake pin, rear brake pin (guide pin)

NOTES

36-1
GROUP 36
PARKING BRAKES
CONTENTS
GENERAL DESCRIPTION. . . . . . . . .36-2
PARKING BRAKE DIAGNOSIS . . . .36-2
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . 36-2
TROUBLESHOOTING STRATEGY . . . . . . 36-2
SYMPTOM CHART. . . . . . . . . . . . . . . . . . . 36-2
SYMPTOM PROCEDURES . . . . . . . . . . . . 36-3
ON-VEHICLE SERVICE . . . . . . . . . . .36-3
PARKING BRAKE LEVER STROKE CHECK
AND ADJUSTMENT . . . . . . . . . . . . . . . . . . 36-3
PARKING BRAKE SWITCH CHECK . . . . . 36-5
PARKING BRAKE LINING SEATING
PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . 36-5
PARKING BRAKE LEVER . . . . . . . . .36-6
REMOVAL AND INSTALLATION . . . . . . . . 36-6
PARKING BRAKE CABLE . . . . . . . . .36-7
REMOVAL AND INSTALLATION . . . . . . . . 36-7
PARKING BRAKE LINING AND
DRUM . . . . . . . . . . . . . . . . . . . . . . . . .36-8
REMOVAL AND INSTALLATION . . . . . . . . 36-8
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 36-11
SPECIFICATIONS . . . . . . . . . . . . . . .36-12
FASTENER TIGHTENING SPECIFICATIONS36-12
SERVICE SPECIFICATIONS . . . . . . . . . . . 36-12
LUBRICANT . . . . . . . . . . . . . . . . . . . . . . . . 36-12

GENERAL DESCRIPTION
PARKING BRAKES36-2
GENERAL DESCRIPTIONM1361000100344
The parking brakes are a mechanical rear wheel
brake design and controlled by a lever.
CONSTRUCTION DIAGRAM
PARKING BRAKE DIAGNOSIS
INTRODUCTIONM1361003700282
If the parking brake is faulty, parking brake effort will
become insufficient. The cause may be a malfunc-
tion of parking brake parts or the parking brake pedal
being out of adjustment.
TROUBLESHOOTING STRATEGYM1361003800290
Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will be sure that you
have exhausted most of the possible ways to find a
parking brakes fault.
1. Gather Information from the customer.2. Verify that the condition described by the
customer exists.
3. Find the malfunction by following the Symptom
Chart.
4. Verify malfunction is eliminated.
SYMPTOM CHARTM1361004100302
SYMPTOM INSPECTION PROCEDURE REFERENCE PAGE
Brake drag
Refer to GROUP 35A, Basic Brake
System Diagnosis
Symptom
Chart P.35A-6.
Insufficient parking brake function 1
P.36-3

ON-VEHICLE SERVICE
PARKING BRAKES36-3
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Insufficient Parking Brake Function
DIAGNOSIS
STEP 1. Check the excessive parking brake lever
stroke.
Refer to P.36-3.
Q: Is the parking brake lever stroke adjusted
properly?
YES :
Go to Step 2.
NO : Adjust the parking brake lever stroke or
check the parking brake cable routing. Then
go to Step 5.
STEP 2. Check the parking brake cable for
sticking.
Q: Is the parking brake cable stuck?
YES :
Replace the cable. Then go to Step 5.
NO : Go to Step 3.
STEP 3. Check the brake lining and brake drum
for wear.
Refer to P.36-11.
Q: Is the brake lining thickness or brake drum inside
diameter outside of specification?
YES :
Replace the rear brake shoe assembly or
rear brake disc (Refer to P.36-8). Then go to
Step 5.
NO : Go to Step 4.
STEP 4. Check for oil, water, etc., on the lining
contact surfaces.
Q: Is oil, water, etc., on the lining contact surface?
YES :
Replace the part and determine and repair
source/cause of foreign material. Then go to
St e p 5.
NO : Carry out the parking brake lining seating
(Refer to P.36-5) and then go to Step 5.
STEP 5. Retest the system.
Q: Is the malfunction eliminated?
YES :
The procedure is complete.
NO : Recheck from Step 1.
ON-VEHICLE SERVICE
PARKING BRAKE LEVER STROKE CHECK AND
ADJUSTMENT
M1361000900362
1. Pull the parking brake lever with a force of approximately
200 N (45 pounds) and count the number of notches.
Standard value: 5
7 notches
2. If the parking brake lever stroke is not within the standard
value, adjust as described below.
(1) Release the parking brake.