Product Manual

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WORK AREA
Keep work area clean, free of clutter and well lit. Cluttered and dark work areas can cause
accidents.
Keep children and bystanders away while operating a tandem wheel chock/lock. Distractions
can cause you to lose control, so visitors should remain at a safe distance from the work area.
PERSONAL SAFETY
Dress properly. Do not wear loose clothing, dangling objects, or jewelry. Keep your hair,
clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught.
Use safety apparel and equipment. Use safety goggles or safety glasses with side shields
which comply with current national standards, or when needed, a face shield.
TANDEM WHEEL CHOCK/LOCK USE AND CARE
For optimal stability the tandem wheel chock/lock should be used on both sides of
vehicle/trailer.
Do not modify the tandem wheel chock/lock in any way. Unauthorized modification may
impair the function and/or safety and could affect the life of the equipment. There are specific
applications for which the tandem wheel chock/lock was designed.
Always check for damaged or worn out parts before using the tandem wheel chock/lock.
Broken parts will affect the tandem wheel chock/lock operation. Replace or repair damaged or
worn parts immediately.
Use the tandem wheel chock/lock on flat and level surfaces only. A load on a slanted or
uneven surface can result in loss of control.
Storing tandem wheel chock/lock. When tandem wheel chock/lock is not in use, store it in a
secure place out of the reach of children. Inspect it for good working condition prior to storage
and before re-use.
Do not over tighten this wheel chock/lock. Damage can be done to tires or Tandem Wheel
chock/lock. This damage is not covered by the warranty.
NEVER rely on this tandem wheel chock/lock as a brake. While it will assist in braking, other
independent devices such as blocks or wedges must be used to keep the vehicle in the parked
position.
OPERATION
NOTE: You may need to repeat adjustment steps several times to find final fit for your
trailer/vehicle.
The original state of the unit is at the narrowest position and will not function until adjustments
are made. REFER TO FIGURE #1 and #2 BELOW while following instructions below.
Figure #1
Handle in “open” position
Figure #2
Handle in “closed” position
Adjusting Nut and
Threaded Rod.
Make adjustments
in “open” position