15
Section 2
Hydraulic Brakes
2. Install the wheel cylinder to the backing plate.
Tighten the capscrews and lock washers to
25-35 lb-ft (34-47 N•m).
3. Connect the hydraulic lines.
4. Assemble the anchor pins to the backing plate
with the washers and lock nuts.
NOTE: The punch marks on the base of the
adjustable anchor pins must meet and the flat
sides of the anchor pins must be aligned.
Figure 2.18.
5. Put the shoe and lining assemblies in correct
position over the guide pins. Install the guide
pin washers, lock rings and the anchor pin
“C” washers.
6. Turn the adjusting cams so that the push rod
ends of the shoes are engaged with the wheel
cylinder push rods.
7. To assemble the shoe return spring, put one
hook in position in the brake shoe. Pull the
spring open to install the opposite hook in the
other shoe.
8. Bleed the hydraulic system after all the brakes
are assembled. (See page 19).
Figure 2.18
5. Disconnect the brake shoe return spring or
springs.
6. Remove the anchor pin “C” washers and the
guide pin locks and washers.
7. Remove the brake shoe and lining
assemblies.
8. Remove the anchor pin lock nuts, lock
washers and anchor pins.
9. If complete disassembly is necessary,
remove the capscrews, washers and wheel
cylinder assembly. Disconnect the hydraulic
lines.
10. Clean and inspect all parts. Refer to Section 4.
Assemble H 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. Surfaces of the adjusting cams and the
matching surfaces of the shoe webs.
b. Push rod ends of shoes and cylinder.
c. Surfaces of anchor pins and matching
surfaces of shoe webs.
