User Guidelines Manual

2512 SERIES
WHEEL CHOCKS
FOR ALL INDUSTRIAL APPLICATIONS
INDUSTRIAL WHEEL CHOCKS
1910.178 (k) Trucks and railroad cars. (1) the
brakes of highway trucks shall be set and wheel
chocks placed under the rear wheels to prevent
the trucks from rolling while they are boarded
with powered industrial trucks.
OSHA SPECIFIES
WHEEL CHOCK USER GUIDELINES
www.checkersindustrial.com
#ZIS-WRB2512
Ver: 11/11
Wheel chocks are effective holding devices, but only when used
properly. Namely, chocks must be used in pairs and positioned
downhill and below the vehicles center of gravity. This could mean
chocking in front of the front wheels if the vehicle is disabled while
traveling down a grade or the back of the rear wheels if the vehicle is
disabled while traveling up a grade. This could also mean chocking the
front and back of one wheel if the direction of the grade cannot be
determined or even using multiple pairs of chocks in severe conditions.
Although these are generally accepted chocking procedures, it is the decision
of each individual end user to make the final determination about chocking.
Various combinations of chocking procedures should be evaluated and tested
under various situations and conditions.
Wheel chocks should be used not only when a vehicle becomes disabled on a
grade, but also during maintenance and any time the vehicle is left unattended.
Chocks must also be positioned snugly and squarely against the center of the
tire tread. Improper positioning decreases the wheel chock’s effectiveness.
Chocks should be used only after the parking brake is applied and tested.
WARNING!
Individual end user testing required to ensure proper chock selection
and application
• Improper use may result in product failure
• Select wheel chock according to vehicle type and size
• Always use in pairs and on firm surfaces
• Multiple pairs may be required in extreme conditions
• Chock in direction of grade
• Chock both sides of wheel if direction of grade is undetermined
• Use only after parking brake is applied and tested
• Center chocks snugly and squarely against tread of each wheel
• Always test chocks to ensure they meet requirements
• Do not drive over wheel chocks
NOTE: If using a horizontal mounting bracket, it should be mounted in an
apparatus compartment and not under the vehicle.
DOWNHILL GRADE
Chock front wheels on each side of truck
LEVEL GRADE
Chock both sides of wheel
UPHILL GRADE
Chock outside rear wheels on
each side of truck
These guidelines are for land vehicle use only - NOT for aircraft!
2512 SERIES Wheel Chocks comply with NFPA 1901, NFPA 1906, and meet SAE-J348 Standard for up to 32 in. (810 mm) wheel diameter.