MECHANICAL BRAKES
Read all of Section B and this section before attempting any procedure. Pay particular attention to all Notes, Cautions and Warnings
Wheel Brake Inspection
AwARNINGA
Wear a dust mask and
eye protection whenever
wo r k i ng o n wheel
brakes. Do not use pressurized air to blow dust from
brake assemblies. Replace both brake shoes on both
wheels if one or more shoes are worn below .06"
(1.5mm) thickness at any point.
CAUTION
Do NOT touch any of the wheel brake
mechanism except as instructed.
Do NOT use a commercial brake cleaner unless the entire brake
has been disassembled.
1. Remove the brake drums.
Do not disturb adjuster mechanisms. Remove excess
dust and dirt from the drum with a brush.
AwARNINGA
The drum must not be
turned to "true" a worn
friction surface. Turning
will make the drum too thin causing drum failure and
a loss of brakes.
2. Inspect the brake drum.
Look for a blue coloration or blistered paint that would
indicate that it has overheated. Check for evidence of
scoring. Check for excessive wear indicated by the
friction surface being significantly worn and leaving a
ledge of unworn drum. Inspect the splines for galling,
wear and corrosion. If any of these problems are
found, the drum must be replaced.
3. Remove any accumulated brake dust from the wheel
brake assembly with a brush.
4. Visually inspect the axle seal for oil leakage and the
condition of the thrust washer. If oil is present, see
REAR AXLE
section.
5. Verify the inner brake drum washer is present and
check its condition. Replace if damaged or missing.
.AwARNINGA
must also be replaced.
If one wheel b r a k e
a s s e m b l y requ ires
replacement, the second
CAUTION
Use care when handling the adjuster
arm. Too much force will damage the
adjuster and require that both wheel brake assemblies be
replaced.
6. Visually check the condition and operation of the
adjuster mechanism.
Inspect the brake lever for damage or wear. Test the
adjuster function as follows:
Push the front brake shoe in the direction of the rear
of the vehicle and hold in position.
Operate the brake lever.
Observe the brake adjuster arm and note if the arm
engages the star wheel and attempts to rotate it (Ref
Fig. 15 on page M-12).
Wheel Brake
Lever
Star
Wheel
Brake Adjuster
Arm
Front of Vehicle
Fig. 15 Adjuster Mechanism
If the adjuster arm
engages and turns
the star
wheel, proceed. If the arm
fails to engage
the star
wheel, it has been damaged and both wheel brake
assemblies must be replaced.
If the adjuster arm engages the star wheel but
fails to
rotate it,
the adjuster assemblies must be replaced
with new color-coded adjusters. Note the location of
the two Teflon coated washers (Ref Fig. 22 on page
M-16).
7. Check the condition and operation of the moving
anchor assembly (Ref Fig. 22 on page M-16).
Operate the brake lever to check for free motion. The
adjuster assembly and brake lever should move
smoothly from front to back on the backing plate. If
the moving anchor assembly is damaged or binds
against the backing plate, replace both of the wheel
brake assemblies.
AwARNINGA
A backing plate assem
bly that shows any indi
cation of g all ing or
gouging is not repairable and must be replaced with a
new wheel brake assembly. Always replace wheel
brake assemblies in pairs.
8. Inspect the backing plate.
Inspect for gouges, galling or other damage, particu
larly where the backing plate is contacted by the
brake shoes and by the moving anchor assembly.
Replace both backing plates if any gouges or galling
is found.
Page M-12
Repair and Service Manual
Содержание FLEET 1999
Страница 6: ...TABLE OF CONTENTS Notes __________________________ _ Page iv Repair and Service Manual...
Страница 10: ...SAFETY INFORMATION Notes _________________________ _ Page viii Repair and Service Manual...
Страница 26: ...SAFETY Notes _ _ ___________________________ _ Page B ii Repair and Service Manual...
Страница 48: ...BODY Notes _ _ ___________________________ _ Page C ii Repair and Service Manual...
Страница 56: ...WHEELS AND TIRES Notes __________________________ _ Page D ii Repair and Service Manual...
Страница 60: ...FRONT SUSPENSION AND STEERING Notes ________________________ _ Page E ii Repair and Service Manual...
Страница 72: ...SPEED CONTROL Notes _ _ ________________________ _ Page F ii Repair and Service Manual...
Страница 80: ...ENGINE Notes _ _ __________________________ _ Page G ii Repair and Service Manual...
Страница 94: ...FUEL SYSTEM Notes _ _ _________________________ _ Page H ii Repair and Service Manual...
Страница 104: ...CONTINUOUSLY VARIABLE TRANSMISSION CVT Notes _______________________ _ Page J ii Repair and Service Manual...
Страница 110: ...ELECTRICAL Notes _ _ _________________________ _ Page K ii Repair and Service Manual...
Страница 120: ...ACCESSORY WIRING Notes __________________________ _ Page L ii Repair and Service Manual...
Страница 148: ...REAR SUSPENSION Notes __________________________ _ Page N ii Repair and Service Manual...
Страница 154: ...REAR AXLE Notes _ _ ___________________________ _ Page P ii Repair and Service Manual...
Страница 158: ...PAINT Notes _ _ ___________________________ _ Page Q ii Repair and Service Manual...
Страница 162: ...TROUBLESHOOTING Notes _ _ ________________________ _ Page R ii Repair and Service Manual...
Страница 170: ...LIMITED WARRANTY Notes __________________________ _ Page S ii Repair and Service Manual...
Страница 176: ...LIMITED WARRANTY Notes __________________________ _ Page S 6 Repair and Service Manual...
Страница 178: ...GENERAL SPECIFICATIONS Notes _________________________ _ Page T ii Repair and Service Manual...