8
Calculating Your Flow Setting
To calculate how many pounds of material to spread
per 1000 square feet of lawn. Follow these steps.
1.
Read on your material bag how many square feet
of area the contents of the bag will cover and how
many pounds the bag weighs.
Example:
You have purchased a bag of fertilizer that states
that it will cover 5,000 square feet, and weighs
16.0 pounds.
2.
To calculate coverage divide bag weight by
suggested coverage to obtain pounds per square
foot that is needed to be applied.
Example:
16.0 lbs.
÷
5,000 sq. ft. = .0032 lbs./sq. ft.
3.
To calculate how much you need for 1000 sq. ft.
multiply the pounds per square foot obtained
above by 1000.
Example:
.0032 lbs/sq. ft. x 1000 = 3.2 lbs./1000 sq. ft.
4.
Refer to standard settings table and locate the
appropriate settings number.
Example:
3.2 lbs./1000 sq. ft is closest to a 3 lbs./1000 sq. ft
so the spreader setting is a 2.5.
These are general information setting intended to
be used as only references.
STANDARD SETTINGS
Fertilizer
Setting
Lbs. per 1000 sq. ft.
Broadcast Spreaders
2.5
2
3.0
2.5
3.5
2.75
4.0
3
Grass Seed
Setting
Blue Grass
1.5
Bent Grass
1.5
Fine Mixture
5
Coarse Seed
5
Insecticide
Setting
(Diazinion)
1.75
_____________________Length
X_____________________Width
=_____________________Total sq. ft.
-
______________________Non
-
Lawn Area
House, drive etc.
=_____________________Total sq. ft.
Coverage
Caution
On the bag of
fertilizer
there should be a
chart
that gives the recommended settings for
that particular bag. Because different manufac-
tures of
fertilizer
make the granules different
sizes it is impossible for spreader manufactures
to give guidelines for all of the different fertiliz-
ers. In addition to this walking speed and ter-
rain, may vary, therefore settings may need to
be adjusted. Because of these conditions,
Groundworks makes no warranty as to the uni-
formity of coverage actually obtained from any
of these calculations.
CALCULATING COVERAGE AREA
Length
W
id
th
5
2. Place long end of Tow Bar
between Left and Right Hitch
Arms then insert
1/4”
x 1.5
Round Head Bolts through
holes and tighten with
1/4”
Nylock Nuts. Insert Thumb
Screw and
1/4”
Washer into
slide on Number Pad and se-
cure with Wingnut. Tap both
1”
Tube Plug into place. See
Figure 2.
4. Thread a
1/4”
Hex Head Nut onto Fertilizer Spreader Control Rod then insert the Control Rod
through hole in Tab and secure with a
1/4”
Hex Head Nut. Insert other end of the Control Rod
through hole in the Slide Plate and secure with a
1/4”
Nylock Nut. See Figure 3. The tab can
3. Remove the tape from the
slide plate at the bottom of
the hopper to release it.
1/4”
x
1”
Thumb Screw
Right Hitch
Arm
1/4”
x
1.5”
Round Head
Bolt
1/4”
Nylock Nut
1”
Tube Plug
Single Bent Tow Bar
Left Hitch
Arm
1/4”
Wing Nut
1”
Tube Plug
Figure 2
1/4”
Washer
Figure 3
1/4”
Hex Head
Nut
Fertilizer Spreader
Control Road
Tab
1/4”
Nylock
Jam Nut
Slide Plate
