Meritor Automobile Accessories MM-9902 Manuel D’Utilisation
13
Blue Marks or Bands
Blue marks or bands indicate that the disc was
very hot. If blue marks or bands are present,
refer to Section 6 to find and correct the cause
of the problem.
very hot. If blue marks or bands are present,
refer to Section 6 to find and correct the cause
of the problem.
Figure 5.5.
Figure 5.5
Measure Disc Thickness
Measure the thickness of the disc when you
reline the brakes. The disc must be at least
0.866-inches (22.0 mm).
reline the brakes. The disc must be at least
0.866-inches (22.0 mm).
Figure 5.6.
If the disc
thickness is outside specification, replace the
disc.
disc.
Figure 5.6
ORIGINAL DISC MAXIMUM DISC MINIMUM DISC
THICKNESS WEAR THICKNESS
THICKNESS WEAR THICKNESS
1.00-inch
0.067-inch
0.866-inch
(25.4 mm)
(1.7mm)
(22.0 mm)
Caliper Assembly
The caliper and saddle assembly are not
serviceable. Replace the brake assembly when a
caliper is worn or damaged.
serviceable. Replace the brake assembly when a
caliper is worn or damaged.
Cleaning
WARNING
To prevent serious eye injury, always wear safe
eye protection when you perform vehicle
maintenance or service.
Solvent cleaners can be flammable, poisonous
Solvent cleaners can be flammable, poisonous
and cause burns. Examples of solvent cleaners
are carbon tetrachloride, emulsion-type cleaners
and petroleum-based cleaners. To avoid serious
personal injury when you use solvent cleaners,
you must carefully follow the manufacturer’s
product instructions and these procedures:
•
•
Wear safe eye protection.
•
Wear clothing that protects your skin.
•
Work in a well-ventilated area.
•
Do not use gasoline or solvents that contain
gasoline. Gasoline can explode.
•
You must use hot solution tanks or alkaline
solutions correctly. Follow the
manufacturer’s instructions carefully.
Cleaning Ground or Polished Metal
Parts
• Use a cleaning solvent to clean ground or
polished parts or surfaces. Kerosene or diesel
fuel oil can be used for this purpose. NEVER
USE GASOLINE.
fuel oil can be used for this purpose. NEVER
USE GASOLINE.
• Be careful not to damage ground surfaces.
• DO NOT clean ground or polished parts in a
hot solution tank, water, steam or alkaline
solution.
solution.
Cleaning Metal Parts With Rough
Finishes
• Parts with a rough finish can be cleaned with
cleaning solvent or in a hot solution tank
with a weak alkaline solution.
with a weak alkaline solution.
• Parts must remain in hot solution tanks until
completely cleaned and heated.
•
Parts must be washed with water until the
alkaline solution is removed
alkaline solution is removed
•
Use a wire brush to clean the threads of
fasteners and fittings.
fasteners and fittings.