Landoll Drexel SLT30 AC, Руководство по обслуживанию

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2-6 F-459-R1
TIRES, BRAKES AND DRIVETRAIN
9. Repeat preceding, “Steps 8 through 10” to adjust the
other brake shoe. When you are finished, rotate the
wheel a few times to get a feel for the amount of effort
needed. You want to duplicate this feel on the other
side of the truck to insure both sides are adjusted
evenly.
10. Remove the support stand and lower the truck.
Reposition the tire support blocks for the next wheel
to be serviced.
11. Repeat this procedure for the other side of the truck.
12. Connect the battery and perform a road test. Road
test the truck by getting up to speed and apply the
brakes ten (10) times in forward and reverse. Do not
lock the brakes when stopping to avoid flat-spotting.
13. Observe the braking of the truck. If the truck pulls to
one side, recheck and adjust the star wheel.
Checking/Changing Brake Shoes
The brakes are located in the front drum/wheel assembly
and are attached to a backing plate. For typical brake
assembly illustration, See Figure 2-4.
1. Follow steps 1-7 on “Load Wheel Bearing
Maintenance” on page 2-3.
NOTE
In extreme cases of wear, the brake shoes must be fully
returned (retracted) before the wheel can be removed.
This involves loosening the star adjusters, which is done
through the access holes in the wheel hub. Brake fluid
will damage paint. Have a container and shop rags
available to manage spills. Cover all body parts and be
careful not to spill fluid during this procedure.

CAUTION
2. Check the inside contact surfaces of the wheel rim
for cracks, score marks, deep grooves, a raised lip on
the outer edge and signs of overheating. If the wheel
rims show blue spots, indicating overheated areas,
the wheel rim must be replaced. Also, look for
surface glazing, grease or brake fluid on the shoe
contact surfaces. Grease and brake fluid can be
removed from metal surfaces, but if the shoes are
contaminated, they must be replaced. Surface
glazing, which is a glossy, highly polished finish, can
be removed with medium grit emery cloth (100-120
grit).
Figure 2-4: Brake Assembly
3. Before removing the internal brake components,
wash (spray) them with brake cleaner and allow to
dry. Position a container under the brake assembly to
catch the excess residue. 4. Pull or press to release the star wheel adjuster
latches and turn the star wheel to retract both the
front and rear brake shoes of each drum.
Do not use forced air to clean brake parts.
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