Mitsubishi 380. Manual — part 301
DISC BRAKE ASSEMBLY
BASIC BRAKE SYSTEM
35A-38
<<A>> PISTON BOOT/CALIPER PISTON
REMOVAL
CAUTION
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
CAUTION
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 "g" on the bolt head) at the bleeder nip-
ple side of the caliper body and a lock pin (with "l" on the bolt
head) at the opposite side.
INSPECTION
M1351008300039
• 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.
.
AC204331
AC204684
DISC BRAKE ASSEMBLY
BASIC BRAKE SYSTEM
35A-39
PAD WEAR CHECK
WARNING
•
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.
ACX00690
SPECIFICATIONS
BASIC BRAKE SYSTEM
35A-40
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
M1351009600390
GENERAL SPECIFICATIONS
M1351000200362
ITEM
SPECIFICATION
Brake line
Brake tube flare nut
15
± 2 N⋅m
Brake pedal
Brake booster nut
14
± 2 N⋅m
Brake pedal bolt
13
± 2 N⋅m
Front disc brake
Brake hose connector bolt
30
± 4 N⋅m
Caliper bleeder
12.5
± 1.5 N⋅m
Front brake assembly mounting bolt
100
± 10 N⋅m
Front brake bolt (guide pin bolt)
36.5
± 1.5 N⋅m
Master cylinder assembly and brake booster
Brake booster nut
14
± 2 N⋅m
Brake master cylinder mounting nut
25
± 2 N⋅m
Rear disc brake
Brake hose connector bolt
30
± 4 N⋅m
Caliper bleeder
12.5
± 1.5 N⋅m
Rear brake assembly mounting bolt
60
± 5 N⋅m
Rear brake bolt (guide pin bolt)
36.5
± 1.5 N⋅m
ITEM
SPECIFICATION
Master
cylinder
Type
Tandem type
I.D. mm
25.4
Brake
booster
Type
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 SYSTEM
35A-41
SERVICE SPECIFICATIONS
M1351000300477
LUBRICANTS
M1351000400429
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)
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