| |
(2)
Remove rubber boots (2 and 9) and
connecting links (1 and 10) from cylinder ends.
cups (4 and 71, and spring (5) from cylinder body (6).
Low pressure air at fluid inlet can also be used to
remove internal parts.
(4)
Remove bleeder (11).
1. Connecting link
8. Piston
2. Boot
9. Boot
3. Piston
10. Connecting link
4. Piston cup
11. Bleeder
5. Spring
12. Screw
6. Cylinder body
13. Lock washer
7. Piston cup
Figure 6-1. Brake wheel cylinder, exploded view.
d.
Cleaning and Inspection.
(1)
Clean all parts thoroughly and keep them
clean until unit is ready for assembly. Use lint free cloth
for cleaning.
Caution: Wash parts thoroughly in
denatured alcohol or clean brake
fluid. Never use gasoline, kerosene,
paint thinner or other mineral base
solvents as they will damage rubber
components.
(2)
Thoroughly inspect all parts for wear,
corrosion or other conditions which might impair cylinder
action.
Caution: Do not use emery cloth or
sandpaper.
(3)
Inspect cylinder bore. Deep blemishes
require boring to resurface the cylinder wall. Do not bore
beyond manufacturers specifications. Pressure marks
may be polished out with crocus cloth.
(4)
If it is necessary to resurface the cylinder
wall, use the following procedure:
(a)
Coat walls of cylinder bore with
hydraulic brake fluid.
(b)
Secure cylinder body in a bench
vise.
(c)
Using honing equipment, remove
material from cylinder bore in single passes.
(d)
After
each
pass
is
completed,
remove hone and inspect for scratches and pitting.
Remove only enough material to recondition cylinder
bore. Do not hone cylinder oversize.
Note. If the cylinder has been honed
oversize or greater than 1.507 of an
inch, it must be replaced.
6-2
|