Determining Vehicle Payload - Fisher POLY-CASTER Installation Instructions Manual

DETERMINING VEHICLE PAYLOAD

WARNING
Overloading could result in an accident or
damage. Do not exceed GVWR or GAWR
ratings as found on the driver-side door
cornerpost of the vehicle. See Loading
Section to determine maximum volumes of
spreading material.
1. Install the hopper spreader and optional
equipment according to the instructions.
2. Install or attach any other equipment that will be
on the vehicle while the hopper spreader will be in
use (step bumper, trailer hitch, snowplows, etc.).
Fill gas tanks.
3. Obtain the Gross Vehicle Weight Rating (GVWR),
Front Gross Axle Weight Rating (FGAWR) and
Rear Gross Axle Weight Rating (RGAWR) from
the certifi cation label located inside the driver-side
door jamb or door.
4. With the occupants in the truck for normal hopper
spreader operation, weigh the vehicle to obtain
gross vehicle weight (GVW).
5. Subtract the GVW from the GVWR to determine
the available material payload.
6. Obtain the weight per cubic yard (lb/cu yd) of
the desired material. Divide the weight into the
payload to determine the maximum volume of
material that can be carried.
Lit. No. 43573/43583/43593, Rev. 01
LOADING
7. Compare the maximum volume to determine the
maximum height of the material in the hopper
spreader.
8. Fill the hopper with the material to the calculated
height. Reweigh the vehicle with occupants
and verify the GVW, Front Gross Axle Weight
and Rear Gross Axle Weight are less than the
vehicle's ratings.
9. Repeat Steps 7 and 8 for each type of material.
Do not overload vehicle. Use chart below
to calculate weight of material. Weights of
material are an average for dry materials.
Never use wet materials or materials with
foreign debris with any of these spreaders.
These units are designed to handle dry, clean,
free fl owing material.
Material
Rock Salt
Sand/Salt Mix
8
WARNING
CAUTION
Density
(lb/ft
80–90
– Dry
95–120
– Dry
3 )
August 15, 2013