10
What to Check and How to Check
Wheel Torque Requirements
Ball Coupler Hitches
Coupler assembly includes a latch lever and latch lever
safety pin or hitch pin. Be sure the latch lever is locked
and the pin properly secured before moving your trailer.
The pin can be engaged fully only if ball is properly
seated in the coupler.
Tires
Before mounting tires onto wheels make certain that
the rim size and contour is approved for the tire as
shown in the Tire and Rim Association Yearbook or the
tire manufacturer’s catalog. Also make sure the tire will
carry the rated load. If the load is not equal on all tires
due to trailer weight distribution, use the tire rated for
the heaviest wheel position.
NOTE: The capacity rating molded into the sidewall
of the tire is not always the proper rating for the tire if
used in a trailer application. Use the following
guideline:
1. LT and ST tires: use the capacity rating molded into
the tire.
2. Passenger Car Tires: Use the capacity rating
molded into the tire sidewall divided by 1.10.
Use tire mounting procedures as outlined by the
Rubber Manufacturer’s Association or the tire
manufacturers.
NOTE: Tire wear should be checked frequently
because once a wear pattern becomes firmly
established in a tire it is difficult to stop, even if the
underlying cause is corrected.
WEAR PATTERN
CAUSE
ACTION
ACTION
Center Wear
Over
Inflation
Adjust pressure to
particular load per
tire catalog.
Edge Wear
Under
Inflation
Adjust pressure to
particular load per
tire catalog.
Side Wear
Loss of camber
or overloading
Make sure load
doesn't exceed axle
rating. Align at
alignment shop.
Toe Wear
Incorrect
toe-in
Align at
alignment shop.
Cupping
Out of
balance
Check bearing
adjustment and bal-
ance tires.
Flat Spots
Wheel lockup &
tire skidding
Avoid sudden stops
when possible and
adjust brakes.
Landa TRV-3500 Service Manual 8.917-470.0 - R
TORQUE SEQUENCE
WHEEL
SIZE
1st
Stage
2nd
Stage
3rd
Stage
15"
20 - 25
50 - 60
90 - 120
Summary of Contents for TRV-3500
Page 13: ...13 Parts Parts 1 103 820 0 LANDA TRV 3500 Landa TRV 3500 Service Manual 8 917 470 0 R...
Page 32: ...32 Wiring Diagram Hydraulic Option Landa TRV 3500 Service Manual 8 917 470 0 R...
Page 33: ...33 Landa TRV 3500 Service Manual 8 917 470 0 R Standard Wiring Diagram...
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