Product Manual

©2017 Spyker Spreaders/A Brinly-Hardy Co. Page 17 1017628-C
Calibration
!
READ BEFORE USING
How to Set the Correct Product Application Rate (Spyker Dial Setting):
Complete “How to Test for a Uniform Distribution Pattern” (pages 15-16) to ensure distribution is even.
1. Once distribution is even, use the same data in
Chart A (pg 16) to complete the steps below.
2. Find the pan on both the LH and RH side of the
center that has approximately 50% of the amount of
material as the center pan. Example:
A. Center Pan has 0.25lb of material.
B. Divide .25 lb / 2 = 0.125 lb
C. Find the LH and RH pan with
approximately 0.125 lbs of material.
3. The effective pattern width is the distance from the
LHpanto theRHpanfound instep2.Tondthe
effective width, nd the distance between the LH
pan and RH pan.
A. Example:
LH Pan = 48” from center
RH Pan = 48” from center
Total Width = 96” (8 ft)
4. Find the linear distance needed to spread 1,000
sq. ft, taking into consideration the effective pattern
width.
A. Example:
1,000 sq ft / 8 ft (effective width)
= 125 ft.
B. Measure out a linear
distance equal to 125 ft.
5. Weigh 20 lbs. of product and place it in the spreader
hopper. Place Spyker Dial at #4 position. Spread
material over the distance necessary to equal the
linear distance found in step 4 (Ex. 125 ft.).
While you are spreading, ensure you are traveling at
a constant speed, usually 3 mph.
6. Weigh the product left in the hopper and subtract
this amount from the amount with which you started.
The result is the application rate for this product in
pounds per 1,000 sq. ft.
A. Example:
20 lbs – 10 lbs (left over in hopper
after spreading for 125 ft)
= 10lbs
7. Adjust the Spyker dial up or down as needed and
repeat this procedure until the correct application
rate is achieved.
NOTE:
Remember, speed is important, so
ensure the speed you calibrate your
spreader is the same speed that
you travel during actual use.