Mitsubishi Canter (FE, FG). Manual - part 22

88

6 Modifications to the basic vehicle 

6.6 Brake systems

MITSUBISHI FUSO body/equipment mounting directives for FE, FG  Issue date: 06. 07. 2012

!

 Only print out complete sections from the current version

i

6.6 Brake systems

All accident prevention regulations must be complied 
with when working on the vehicle.

Comply with all federal, state, and local regulations 
and codes.

Disc brake

Extreme caution is required in handling brake tubing 
because of the importance of the components due to 
brake safety. Tubing, joints, and brake components 
should be protected with covers during mounting work 
to prevent them from dents, damages, welding sparks, 
and heat and routing changes of tubing necessary for 
coupling with trailers, etc., should be performed in 
accordance with the following cautions.

a

Risk of accident

Work carried out incorrectly on the brake system 
may impair its function. This may lead to the failure 
of components or parts relevant to safety. This 
could cause an operator to lose control of the 
vehicle and cause an accident with possible injury 
or death.

!

Do not impede cooling by attaching spoilers below 
the bumper, additional hub caps or brake disc 
covers, etc.

i

After any modifications the brake system must be 
tested for proper operation and approved by a 
technical inspection authority otherwise the 
operating permit will be invalidated.

Further information can be found in Section 5 
"Damage prevention" 

컄 page 62.

89

6 Modifications to the basic vehicle 

6.6 Brake systems

MITSUBISHI FUSO body/equipment mounting directives for FE, FG  Issue date: 06. 07. 2012

!

 Only print out complete sections from the current version

i

6.6.1

Chassis tubing form and dimension 
specifications

The chassis uses steel brake lines which conform to 
the following specifications.

(Double Flare type)

Unit: mm {in.}

(ISO flare type) Material is the same as Double Flare types.

Unit: mm {in.}

D4 is an outside diameter on the sealing surface. The 
surface-roughness is 

Nominal

diameter

A

B

t

C

S 

min.

Material

4.75
4.76

{0.19}

6.6-7.1

{0.26-0.28}

3.0-3.7

{0.12-0.15}

0.7

{0.03}

1.4

{0.06}

1.0

{0.04}

SPCC (JIS)

(ASTM A109 or 

A366)

Double walled

steel tubes

6.35

{0.25}

8.6-9.1

{0.34-0.36}

4.5-5.2

{0.18-0.20}

0.7

{0.03}

1.4

{0.06}

1.0

{0.04}

Nominal

diameter

D1

D2

D3

D4 min.

T

L

4.75
4.76

{0.19}

4.83-4.69

{0.190-

0.185}

7.28-6.92

{0.286-

0.273}

3.5-3.0
{0.137-

0.119}

4.7

{0.19}

0.77-0.63

{0.030-0.025}

2.8-2.2

{0.110-0.087}

6.35

{0.25}

6.42-6.28

{0.252-

0.248}

8.98-8.62

{0.353-

0.340}

5.1-4.6
{0.201-

0.182}

6.3

{0.25}

Fig. 1

90

6 Modifications to the basic vehicle 

6.6 Brake systems

MITSUBISHI FUSO body/equipment mounting directives for FE, FG  Issue date: 06. 07. 2012

!

 Only print out complete sections from the current version

i

The tightening torques for the flare nuts which 
connect the brake lines are shown below.

6.6.2

Making additional tubes

• Only use brake tubes of the same material as the 

tubes connected to the chassis when extending 
the brake tubes.

• Only use steel tubes to extend the brake fluid 

tubes. Never use copper tubes.

• Only use metric pipe tools to form the flared end of 

brake lines as shown in the "Flared end shape 
figure" in Fig. 1. Be careful to not scratch the tubes, 
or damage the mating surfaces when flaring the 
ends.

• A brass nut used with steel tubes could cause 

uneven fitting between the flared surface of the 
tubes and the connecting surface joint, resulting in 
fluid leakage.

• Use the flare nuts specified in the table below.

• Use a tubing bending tool to bend the brake lines 

correctly. Do not use heat to bend the brake lines.

• The bend curvature R should strictly conform to the 

minimum allowable bend radius R shown in the 
table below.

Nominal

Diameter

mm {in.}

Tightening torque

N·m {ft.lbs, kgf.cm}

4.75
4.76

{0.19}

13 to 17

{9.4 to 12.3, 130 to 170}

6.35

{0.25}

19 to 25

{13.7 to 18.8, 190 to 260}

Nominal

diameter of

tube

mm {in.}

Fig. 2

4.75
4.76

{0.19}

MF651001 (Double flare type) 

MK678335 (ISO flare type)

6.35

{0.25}

MF651002 (Double flare type) 

MK678336 (ISO flare type)

Nominal

diameter

mm {in.}

Bend radius

mm {in.}

4.75
4.76

{0.19}

25 {0.98}

6.35

{0.25}

30 {1.18}

91

6 Modifications to the basic vehicle 

6.6 Brake systems

MITSUBISHI FUSO body/equipment mounting directives for FE, FG  Issue date: 06. 07. 2012

!

 Only print out complete sections from the current version

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• The required length of the straight portion of the 

line end and the bent portion must conform to the 
dimensions specified in Fig. 3.

• Use high pressure air nozzle to clean and remove 

foreign matter from inside the brake lines before 
use. Use compressed air for cleaning. Cleaning oil 
is not recommended, but completely remove any 
residue if it is used.

6.6.3

Running additional lines

• Avoid crossing brake lines. If this is unavoidable, 

position each line so it clears the other by more 
than 15 mm {0.59 in.}. (Fig. 4)

• Position the brake lines so that they are not closer 

than 15 mm {0.59 in.} to sharp edges of the frame 
or other parts. (Fig. 5)

Fig. 3

Fig. 4