Kärcher TRK-3500 Operator'S Manual Download

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9.800-199.0 • Kärcher Trailer Manual • Rev. 01/08

TRAILER

OPERA

TOR’S MANU

BraKeS

Brake adjustment

Brakes should be adjusted (1) after the first 200 miles
of operation after the brake shoes and drums have
“seated”, (2) at 000 mile intervals or () as use and
performance require. The brakes should be adjusted in
the following manner:
1. Jack up trailer and secure on adequate capacity jack

stands. Check that wheel and drum rotate freely.

2. Remove adjusting hole cover from adjusting slot on

bottom of brake backing plate.

. With screwdriver or standard adjusting tool, rotate

the starwheel of the adjuster assembly to expand
the brake shoes. Adjust the brake shoes out until
the pressure of the linings against the drum makes
the wheel very difficult to turn.

Note:

With drop spindle axles, a modified adjusting

tool with about an 80° angle should be used.

4. Then rotate starwheel in opposite direction until

wheel turns freely with slight lining drag.

5. Replace the adjusting hole cover and lower wheel

to ground.

6. Repeat above procedure on all brakes.

CAUTION: Never crawl under your trailer
unless it is resting on properly placed jack
stands.

Do not lift or place supports on any part of the suspen-
sion system.

Brake Cleaning & inspection

Your trailer brakes must be inspected and serviced at
yearly intervals or more often as use and performance
require. Magnets and shoes must be changed when they
become worn or scored thereby preventing adequate
vehicle braking.
Clean the backing plate, magnet arm, magnet and brake
shoes. Make certain that all the parts removed are re-
placed in the same brake and drum assembly. Inspect
the magnet arm for any loose or worn parts. Check shoe
return springs, hold down springs and adjuster springs
for stretch or deformation and replace if required.

CAUTION: Asbestos Dust Hazard. Since
some brake shoe friction materials con-
tain asbestos, certain precautions need
to be taken when servicing brakes:

1. Avoid creating or breathing dust.
2. Avoid machining, filing or grinding the brake lin-

ings.

. Do not use compressed air or dry brushing for clean-

ing. (Dust can be removed with a damp brush).

Trailer STOrage

Preparation

If your trailer is to be stored for an extended period of
time or over the winter, it is important that the trailer
be prepared properly.
1. Remove the emergency breakaway battery and

store inside, out of the weather. Charge the bat-
tery at least every 90 days.

2. Jack up the trailer and place jack stands under

trailer frame so that the weight will be off the tires.
Never jack up or place jack stands on the axle
tube or on the equalizers.

. Lubricate mechanical moving parts that are exposed

to weather, such as hitch and suspension parts.

Note:

On oil lubricated hubs the upper part of the roller

bearings are not immersed in oil and are subject to po-
tential corrosion. For maximum bearing life it is recom-
mended that you revolve your wheels periodically (every
2- weeks) during periods of prolonged storage.

after Prolonged Storage — inspection
Procedures

Before removing trailer from jack stands:
1. Remove all wheels and hubs or brake drums.

Note which spindle and brake that the drum was
removed from so that it can be reinstalled in the
same location.

2. Inspect suspension for wear.
. Check tightness of hanger bolt, shackle bolt and

U-bolt nuts per recommended torque values.

4. Check brake linings, brake drums and armature

faces for excessive wear or scoring.

5. Check brake magnets with an ohmmeter. The

magnets should check .2 ohms. If shorted or
worn excessively, replace.

6. Lubricate all brake moving parts using a high

temperature brake lubricant. (LUBRIPLATE or
equivalent).

CAUTION: Do not get grease or oil on brake lin-
ings or magnet face.