Wheel Lugs - Landa ECOS 7000 Operator's Manual

wear or tire failure. Balancing recommended. Preferred
balancing method is to center off of stud holes, since
13" through 16.5" wheels are not hub piloted.
Wheels
Check wheels for hole elongation or "out of round".This
condition can be caused by lug nuts not being tight
or being too tight. Trailer wheels can be damaged by
chuck holes or curb jumping. You may not be aware of
the road shock to the wheels without periodic checks.
Replace any wheel that is bent. Replace any wheel if
you see elongation of the bolt holes.

Wheel Lugs

Wheel lug nuts must be tightened with a torque wrench.
Refer to the chart below for proper
torque
1. Start all bolts or nuts by hand to
prevent cross threading.
2. Tighten bolts or nuts following
sequence at right.
3. The tightening of the fasteners should be done in
stages. Following the recommended sequence,
tighten fasteners per wheel torque chart below.
4. Wheel nuts/bolts should be torqued before first
road use and after each wheel removal. Check and
re-torque after the first 10 miles, 25 miles and again
at 50 miles. Check periodically thereafter
Wheel Torque Requirements
TORQUE SEQUENCE
Wheel
1st Stage 2nd Stage 3rd Stage
Size
20 - 25
15"
ft. lbs
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.
Hitch Balls
These come in a variety of diameters and capacities.
The GVWR (General Vehicle Weight Rating) capacity is
always stamped on the ball. Use a 2-5/16" ball. Always
be sure the hitch ball at least matches the GVWR of
your trailer. Always be sure the diameter of the hitch
ball matches the coupler diameter. Never attempt to tow
your trailer with improper size ball. Always keep ball
greased to avoid excessive wear. Replace worn hitch
ball or locking dogs promptly.
4
TRAILER INFORMATION
1
4 3
2
5
50 - 60 90 - 120
ft. lbs ft. lbs
9.801-316.0 • Landa ECOS 7000 Operator Manual • Rev. 12/12
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.
Tire inflation pressure is the most important factor in
tire life. Inflation pressure should be as recommended
by the manufacturer for the load. (50psi recommended)
Pressure should be checked cold before operation. Do
not bleed air from tires when they are hot. Check infla-
tion pressure weekly during use to insure the maximum
tire life and tread wear. The following tire wear diagnostic
chart will help you pinpoint the causes and solutions of
tire wear problems.
NOTE: Tire wear should be checked frequent-
ly because once a wear pattern becomes firmly
established in a tire it is difficult to stop, even if the
underlying cause is corrected.
Center
Inflation
Wear
Edge
Inflation
Wear
Side Loss of
Wear
camber or
overloading
Cup-
ping balance
Flat
Spots
skidding
Over Adjust pressure to
particular load per
tire catalog.
Under Adjust pressure to
particular load per
tire catalog.
Make sure
load doesn't
exceed axle
rating.
Out of Check bearing
adjustment and
balance tires.
Wheel Avoid sudden
lockup stops when
& tire possible and
adjust brakes.