4-4
1
2
10
13
15
14
9
8
4
12
11
22
17
21
16
20
19
5
6
3
7
18
5. BRAKE MASTER CYLINDER(DRY TYPE)
STRUCTURE
DISASSEMBLY
Remove the master cylinder boot(10) and remove the rod(13).
Remove the key wire(9) and take out the plate(8), the piston(2), the piston primary cup(3), and
piston spring(5).
Specification of master cylinder.
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Cylinder bore diameter : 19.05mm
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Piston stroke : 23.0mm
I
I
NSPECTION
Clean and check these components.
Use isopropyl alcohol or brake fluid for washing the components. Do not use gasoline, kerosene or any
other mineral oils. When using alcohol, do not leave rubber parts in the liquid for more than 30 seconds.
Inspect the inside wall of the master cylinder, and if any faults are found, replace the cylinder assembly.
Replace the boot(10), the primary cup(3), piston(2), if deformation or any other defect is found.
ASSEMBLY
Prior to assembly make sure again of no contaminant of the components. Apply a thin coat of
brake oil to the components.
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Assembly is in opposite order to disassembly.
1)
2)
(1)
(2)
(3)
1
Body
2
Piston
3
Primary cup
4
Secondary cup
5
Spring
6
Spring seat
7
Spacer
8
Plate
9
Key wire
10
Boot
11
Check valve
12
Valve seat
13
Rod
14
Yoke
15
Nut
16
Nipple
17
Band
18
Band bolt
19
Band plate
20
Band washer
21
Cap
22
Cap
D255BS04
3)
(1)
ö
(2)
(3)
4
4)
ö
