Magnum C3C Spreader Sprayer
Operator Manual
Refer to the cover page for restrictions regarding
Page 36
reproduction or disclosure of this material.
Septenber/08
SPREADER CALIBRATION, ADJUSTMENT, AND OPERATION (continued)
adjustment lever (left-hand side of the hopper) so that the slide plate just contacts the
gauge. Move the memory lock (grey sliding piece) until it pops into the lever and locks
its position. Remove the gauge.
e. Place the third-hole remote adjustment lever at the OFF position, then return it to the
memory lock position. Verify the gauge fits snugly in the hole in the #11 gauge position.
Repeat the setting process, if necessary.
4. Determine the rate lever setting for each product that will be used. The machine is designed
to apply fertilizer evenly by overlapping 50 percent of the last pass. Most fertilizer products
spread 14 foot wide. One half of 14 feet (or 7 feet) is the effective material spread width,
and used as the basis for calibration.
a. Measure a distance of 143 feet (44 meters) over turf. This will provide a spread area of
approximately 1,000 ft
2
(93 m
2
). The effective material spread width is 7 feet; therefore,
7 x 143 = 1,001 ft
2
(93 m
2
).
b. With the machine in neutral (and the hopper closed), run the engine at full throttle.
Check the tachometer to make sure the engine is running at 3450 rpm. Once we know
that the engine is operating at the correct speed, we can be sure that you’ll be traveling
at the right speed, as well.
c. With the machine traveling in HIGH at full throttle, use a stopwatch or wristwatch to
measure and record the time required to travel the 143-foot (44 meter) turf course. The
normal time is approximately 20 seconds.
d. With the machine operating in LOW at full throttle, record the time required to cover the
143-foot (44 meter) turf course. The normal time is approximately 28 seconds.
e. Place the Spreader Sprayer over a paved surface and place enough material to cover
1,000 ft
2
(93 m
2
) in the hopper. This must be calculated for each specific product. The
Spreader Sprayer may remain stationary on the hard surface for the remainder of the
calibration to make collection and reuse of the material easier.
f. In neutral, with the engine at full throttle, spread the product, but do not record the first
time. The first time required to spread the product is not an accurate measure because
some of the product always remains in the hopper.
g. Leave the product that did not spread in the hopper and add enough additional material
for 1000 ft
2
(93 m
2
) of coverage to the hopper.
h. Spread the product. Measure and record the time required to discharge the product.
i. If the time to spread the product differs from the time measured in step (b), above, adjust
the rate lever setting. Moving the rate lever to the right will decrease the time required to
