|
Check the lining of all
discs.
| note |
- If the lining is flaking or has
discoloured, or if it is worn or the
print mark
is wearing away, replace with a new
discs. When replacing, check the contact
surfaces between
the flange, the plate and the disc. If
they are scratched or have discoloured,
replace with
new parts.
- Before replacing with new discs, soak
them at least 2 hours in ATF.
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|
1.Make sure that the
low/reverse brake piston moves smoothly when pulling
and releasing
the compressed air gun lever while applying compressed air
into the transmission case.
|
|
2.Using vernier calipers,
measure the level difference (length A) between the upper
surface
of the low/reverse brake piston and the hitting
surface of the flange at both ends across
the low/reverse brake piston diameter, and calculate
the average.
| note |
The low/reverse brake
piston must be securely installed to the end
face of the
transmission case.
|
Standard value: 36.35 -
37.09 mm
(For length A)
3.Using vernier
calipers, measure the thickness (length B) of the 2 flanges,
8 discs
and the 7 plates altogether at both ends across the
diameter, and calculate the average.
Standard
value: 33.94 -
35.04 mm
(For length B)
4.If the pack
clearance is not within the specified range, select and a
flange that
brings the pack clearance to be within the specified
range.
Standard value: 0.8 -
1.1 mm
(For brake B4 pack clearance)
| note |
- Brake pack clearance =
Length A - Length B - 0.55 mm - Length
H
- There are 11 types of flanges that can
be used to adjust the pack clearance.
Select
the one with the most appropriate
thickness.
|
|
Thickness
H:
Flange
|
Mark
|
Thickness
(mm)
|
0
|
0
|
1
|
0.09
-
0.25
|
3
|
0.23
-
0.39
|
4
|
0.37
-
0.53
|
5
|
0.51
-
0.67
|
7
|
0.65
-
0.81
|
8
|
0.79
-
0.95
|
10
|
0.93
-
1.09
|
11
|
1.07
-
1.23
|
12
|
1.21
-
1.37
|
14
|
1.35
-
1.51
|
|
|
|
|
1.Make sure that the brake
piston No. 1 moves smoothly when pulling and releasing the
compressed
air gun lever while applying compressed air into the
transmission case.
|
|
2.Using vernier calipers,
measure the level difference (length A) between the upper
surface
of the brake piston No. 1 and the hitting surface of the
flange at both ends across the brake
piston No. 1 diameter, and calculate the average.
| note |
The brake piston No. 1 &
brake cylinder No. 1 must be securely installed
to the
end face of the transmission case.
|
Standard value: 19.74 -
20.22 mm
(For length A)
3.Using vernier
calipers, measure the thickness (length B) of the 4 discs
and the 4
plates altogether at both ends across the diameter, and
calculate the average. Add the correction value
to the calculated value.
Standard value: 18.93
-
19.39 mm
(For length B)
Correction value: 1.6
mm
| note |
A load of 39 ±
2.7 N is applied during measurement.
|
4.If the pack clearance is not within the
specified range, select and install a flange
that brings the pack clearance to be within the specified
range.
Standard value: 0.56 -
0.86 mm
(For brake B1 pack clearance)
| note |
- Pack clearance =
Length A - Length B +
1.6 mm - Length H
- There are 4 types of flanges that can be
used to adjust the pack clearance.
Select
the one with the most appropriate
thickness.
|
|
Thickness
H:
Flange
|
Mark
|
Thickness
(mm)
|
0
|
1.95
-
2.05
|
4
|
1.35
-
1.45
|
5
|
1.55
-
1.65
|
6
|
1.75
-
1.85
|
|
|
|