Specifications
WARNING: Always perform vehicle undercarriage installations with the keys re-
moved from the vehicle’s ignition. Properly tag the ignition switch to alert others
work is being performed on the vehicle.
WARNING: ALWAYS attach a “DO NOT OPERATE” tag to the ignition switch and/or
steering wheel in the cab of the vehicle to alert others that service or maintenance
is being performed. If necessary, place additional warning tags around the vehicle.
Serious injury or death could occur if the engine is started and the vehicle and/or
snowplow are moved while performing service or maintenance.
WARNING: Most newer trucks are equipped with driver and passenger’s side air
bags. DO NOT remove, disable, or reposition any sensory equipment related to the
safe operation of the air bags.
WARNING: Vehicles equipped with air bags are designed to be activated in a frontal
collision equivalent to hitting a solid object or barrier at approximately 14 mph or
more. Careless or high speed driving while plowing snow, which results in vehicle
impact deceleration equivalent to or greater than the airbag deployment threshold
described above, would deploy the airbag. Review your vehicle Owner’s Manual for
specific information regarding airbag deployment.
WARNING: ALWAYS follow the vehicle manufacturer’s recommendations for install-
ing snowplowing equipment.
CAUTION: Always follow the maintenance guidelines in a timely manner. Failure to
observe maintenance guidelines may result in poor snowplow operation, increased
component wear or possibly lead to part failure.
•Note: Vehicles equipped with Blizzard Snowplows are recommended to be equipped with the
vehicle manufacturer’s recommended snowplow options (i.e. Snowplow prep packages).
• Note: The installation, modification or addition of accessories to Blizzard snowplow undercar-
riage mounts and/or snowplows must be in compliance with published Blizzard snowplow
recommendations and instructions.
• Note: For some snowplow applications, it may be necessary to use a form of load boosting
device to accommodate a snowplow installation.The use of suspension airbags, booster springs,
Timbren kits or other similar load boosting devices is the responsibility of the snowplow
purchaser. The selection, installation and purchase of load boosting devices is also the respon-
sibility of the purchaser.
•Note: For some snowplow applications, it may be necessary to use a form of ballast to provide
increased vehicle traction or maximum braking and handling. The use of ballast, such as sand
bags, etc., is the responsibility of the snowplow purchaser. The selection, installation and pur-
chase of ballast devices is also the responsibility of the purchaser.
•Note: For proper undercarriage installation, the vehicle must be parked on a level surface.
• Note: The recommended push beam height for Models 680LT and 720LT Blizzard straight
blade snowplows is 10-1/2" from the center of the push beam to level ground. DO NOT exceed
12-1/2" in height for this push beam installation. Review the diagram to the right.
• Note: The recommended push beam height for Blizzard snowplow models 760LT, 760, 800, 860
810 and 8611 is 12-1/2" from the center of the push beam to level ground. DO NOT exceed
14-1/2" in height for these push beam installations. Review the diagram to the right.
•Note: Routinely inspect all undercarriage mount hardware for tightness. Review the recom-
mended maximum bolt torque chart in your Blizzard snowplow Operation & Assembly manual.
•Note: Routinely clean and lubricate all electrical plugs, headlight connections, ground and bat-
tery cables, solenoid connections and switch connections to prevent corrosion. Apply dielectric
grease for every 25 hours of snowplow use. You may need to grease more frequently depending
on your plowing environment.
• Note: Follow all maintenance guidelines indicated in your Blizzard snowplow Operation &
Assembly manual.
• Note: Follow all safety and warning labels indicated on the snowplow and/or in your Blizzard
snowplow Operation & Assembly manual.
SAFETY PRECAUTIONS AND SNOWPLOW
UNDERCARRIAGE INSTALLATION RECOMMENDATIONS
10-1/2" (680LT & 720LT Only)
12-1/2" (All Other Plow Models)
The recommended push beam height for the
680LT & 720LT undercarriage assembly is 10-1/2"
from the center of the push beam to level ground.
The recommended push beam height for all other
truck-mounted snowplow models is 12-1/2".
DO NOT exceed 12-1/2" (680LT & 720LT Only) or
14-1/2" (All other models) in height for these under-
carriage assemblies.
CAUTION: If your vehicle is equipped
with oversize tires, they may come into
contact with the undercarriage hanger plates
when turning the vehicle.
The problem may be resolved by setting the
steering stops on the vehicle. If this does not
correct the problem, the original tires will
need to be installed on the vehicle.
Undercarriage & Light Conversion Harness Guide
Pub. No. 64008 3