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Section 4
Prepare Parts for Assembly
Clean Ground or Polished
Parts
WARNING
To prevent serious eye injury, always wear safe
eye protection when you perform vehicle
maintenance or service.
WARNING
If you use cleaning solvents, hot solution tanks
or alkaline solutions incorrectly, serious personal
injury can occur. To prevent serious personal
injury, follow the instructions supplied by the
manufacturer of these products. Do NOT use
gasoline to clean parts. Gasoline can explode
and cause serious personal injury.
CAUTION
•
Do not use cleaning solvents on hydraulic
seals, boots or pistons. Cleaning solvents can
damage these components. Protect the brake
lining from solvents, lubricants, rust
inhibitors, or other contaminants that can
change the friction properties of the lining.
Contaminated linings MUST be replaced.
•
Use only solvent cleaners to clean ground or
polished metal parts. Hot solution tanks or
water and alkaline solutions will damage
these parts. Isopropyl alcohol, kerosene or
diesel fuel can be used for this purpose.
•
If required, use a sharp knife to remove
gasket material from parts. Be careful not to
damage the ground or polished surfaces.
a. Use a cleaning solvent to clean ground or
polished parts and surfaces. Kerosene or
diesel fuel can be used for this purpose.
DO NOT USE GASOLINE.
b. DO NOT clean ground or polished parts
in a hot solution tank or with water,
steam or alkaline solutions. These
solutions will cause corrosion of
the parts.
Clean Parts With Rough
Finishes
a. Rough parts can be cleaned with the ground
or polished parts.
b. Rough parts also can be cleaned in hot
solution tanks with a weak alkaline solution.
c. Parts must remain in the hot solution
tanks until they are completely cleaned
and heated.
Dry Cleaned Parts
a. Parts must be dried immediately after they
are cleaned.
b. Dry parts with clean paper or rags, or
compressed air.
Prevent Corrosion and Rust on
Cleaned Parts
CAUTION
Wheel cylinders and cup seals must only be
lubricated with the fluid used in vehicle brake
system. Cylinder boots must be kept dry to
avoid rust and corrosion.
a. Apply axle lubricant to the cleaned and dried
metal parts that are to be immediately
assembled.
b. If parts are to be stored, apply a special
material that prevents rust and corrosion to
all surfaces.
Inspect Parts
It is important that you carefully inspect all parts
before assembly starts. Check all parts for wear
or damage and repair or replace them as
required. Replacement of these parts now can
prevent problems with the assembly later.
a. Check all castings and backing plates for
cracks, loose rivets and correct alignment.
Replace all damaged parts.
b. Check all adjusting bolts, guide pins and
pawl pins for corrosion and wear. Replace or
repair damage parts.
