6
Section 2
Hydraulic Brakes
ITEM DESCRIPTION
1 Backing Plate
2 Lock Washer
3 Capscrew
4 Hold Down Retainer Pin
5 Capscrew
6 Wheel Cylinder Assy.
7 Spider
8 Anchor Pin
9 Shoe Return Spring (Black)
10 Shoe Hold Down Clip
11 Shoe Lining Assy. (Trailing)
12 Shoe Spring
13 Adjuster Bolt Assy.
14 Automatic Adjuster Stamped Spring
15 Automatic Adjuster Wire (Long)
16 Automatic Adjuster Pivot
17 Shoe and Lining Assy.(Leading)
18 Adjuster Wire Pin
19 Automatic Adjuster Wire (Short)
20 Shoe Return Spring (Green)
21 Parking Lever Spring Clip
22 Link
23 Pivot Pin - Link
24 Parking Lever
25 Pivot Pin - Parking Lever
26 Slide Pin - Link
3. Raise the vehicle so that the wheels to be serviced
are off the ground. Support the vehicle with
safety stands.
4. Remove the wheels and brake drums from the
axle. If necessary, manually retract the brake
shoes through the forward adjustment slot so
that the brake drums will clear the linings. Insert
a stiff wire or pick through the adjustment slot to
push the automatic adjustment stamped spring
away from the star wheel while using an
adjusting tool to rotate the adjustment bolt star
wheel.
5. Remove the fastener that attaches the
automatic adjusting wires and the pivot to
the leading shoe.
6. Remove the two brake shoe return springs
from the anchor pins.
7. Support the leading shoe with one hand and
remove the shoe hold-down spring clip. Lift
and rotate the spring clip until it is released
from the retainer pin.
8. Remove the shoe spring and the adjustment
bolt at the bottom of the brake.
9. Support the trailing shoe with one hand and
remove the two shoe hold-down spring clips.
Lift and rotate each spring clip until it is
released from the retainer pin.
10. If the brake has a parking brake lever,
disassemble the link from the leading shoe by
removing the spring clip. To disassemble the
parking lever from the trailing shoe, remove
its spring clip.
11. Remove the anchor pins from holes.
12. If complete disassembly is necessary,
disconnect the hydraulic line and remove
the wheel cylinder capscrews and the
wheel cylinder.
13. Clean and inspect all parts. Refer to Section 4.
Assemble DSH Brake
CAUTION
Do not permit grease to contact the brake drum
or linings. Grease on the linings can cause poor
brake performance. Contaminated linings MUST
be replaced.
1. Before assembly, apply a thin layer of
Meritor specification 0-616 brake lubricant
such as Texaco Thermatex EP-2 grease or
equivalent (listed on page 31) to the
following parts:
a. Adjustment bolt assemblies.
b. All edges of brake levers and shoes that
slide against each other.
