4
PREPARATION AND SAFETY
• Always wear safety glasses or eye shields when using your
spreader.
• Dress properly. Wear only closed toed shoes with good traction.
Do not operate spreader when barefoot or wearing open
sandals.
• Wear long-sleeved clothes that are snug fitting. Avoid wearing
loose clothing.
• Wear either tightly cuffed or cuffless pants.
• Wear non-slip gloves during operation. Wear a respirator if
appropriate for the type of material being spread.
• Long hair should be tied back and kept away from the
spreader.
• Make directional adjustments before using the spreader.
• Use only in daylight or good artificial light.
• Read all instructions of the chemical manufacturer.
CAUTION
• Keep your eyes and mind on the job at hand. Do not become
distracted.
• Always be sure of your footing. Use extra caution in wet or
slippery areas. WALK - DON’T RUN.
WARNING: Chemicals or materials which can be harmful to
individuals or the environment should be avoided. Follow all
warnings of the chemical manufacturer.
MAINTENANCE AND STORAGE
• Check all bolts, nuts, and screws at frequent intervals for
proper tightness to be sure the spreader is in safe working
condition.
• Keep all safety devices in place and working.
CUSTOMER RESPONSIBILITIES
• Read and observe the Safety Rules.
• Follow a regular schedule in maintaining, caring and using
your spreader.
• Follow the instructions under the Maintenance and Storage
sections of this manual.
ASSEMBLY
Your SOLO 421 spreader needs to have the carry strap and the
crankhandle attached before operation.
Remove the hopper lid. The crank handle and carry strap are
located inside.
Mounting the Crank Handle
• Place the spreader on it’s left side (as viewed from the
operators position). Figure A.
• Find the threaded crankshaft and affix the crank handle in a
clockwise motion, tighten the jamnut against the crank handle.
Carry Strap
• Stand the spreader upright at about waist level on a table,
bench or stand.
• Adjust the strap to ist longest reach.
• Attach the strap hook to the top right eye on the hopper (as
viewed from operator’s position).
• With the back of the spreader facing your chest, slip the strap
over your right shoulder and across your back.
• Set strap hook under spreader housing. See Figure B.
• With the spreader fitted, crank the handle and determine if
the spreader is set at a comfortable height. Remove the
spreader, adjust the strap and try again until you are
comfortable with fit and function.
Lubrication Point
• With the spreader on it’s right side (crankhandle side up),
observe the small oil hole in the gearcase.
• Add a few drops of light oil every four hours of operation
Figure C.
Adjusting the Spreader
Your spreader is adjustable for both volume and direction. Four
factors determine the volume and derection. They are:
Flow Limiter Stop -
This brass stop nut allows you to limit the
hopper opening for consistent delivery of material to the impeller.
Flow Rate Lever -
Look down into the hopper to observe how
the drop chute opening varies as you adjust the flow rate lever.
Directional Lever
- This control adjusts the point where the
material is to be deposited on the impeller and consequently, the
width of spread. The lever can be set for center, left or right
spreading. Figure D.
Deflector Shield
- Increase or decreases the width of spread.
Figure E.
Cranking Speed -
Cranking faster or slower affects volume and
coverage.
SPREAD RATE TABLE
Pelletized fertilizer is usually thrown about 10-12 feet (300-400cm)
in front of the operator and about 5-7 feet on each side at 55-60
rpm. Grass seed usually carries 5-6 feet (180-200 cm) forward and
4-5 feet (150-170 cm) to the side. A walking speed of 2.5 to 3.0
feet per second (80-90 cm/sec) is suggested.
Please test the product you are spreading to achieve the
manufacturer’s recommended coverage.
FILLING THE HOPPER
• Move flow rate lever to zero position.
• Set spreader on a flat surface.
• Remove hopper lid.
• Fill hopper. For the initial use it is wise to partly fill the hopper
and practice spreading and making adjustments.
• Replace hopper lid - the lid prevents spillage and heilps keep
dust and otrher material away from the operator. When
spreading chemicals be sure to wear protective clothing,
respirator and eye protection.
• Do not load hopper while carrying spreader.
OPERATING INSTRUCTIONS
• Set spreader on a surface to safely and conveniently fit the
carry strap as outlined in assembly section.
• Set deflector to desired position.
• Adjust spreading direction lever to the desired position.
Directional changes can also be made simply by walking in the
desired direction.
• While turning the crankhandle with your right hand, move the
flow rate lever with the left hand to adjust flow rate. Flow
limiter stop will control flow rate. Caution: Keep hands away
from rotating impeller.
• After use, turn the flow rate lever to the closed (zero) position.
Crank the handle several times to make sure no material
residue is attached to impeller. Clean the whole unit
thoroughly using soap and water.
OTHER OPERATINS SUGGESTIONS
• Walking speed: 2.5 - 3.0 feet per second (80-90 cm/sec.) .
• Crankhandle speed: 55-65 rpm.
• Each complete revolution of the crankhandle causes the
impeller to rotate 7 1/2 turns.
Flow rate adjuster
setting # 6 (full open)
Pounds/Kg Delivered/
per minute
7.44 / 3,37
10.0 / 4,54
2.0 / 0,91
Flow rate adjuster
setting # 3 (middle)
Pounds/Kg Delivered/
per minute
4.4 / 2,0
3.75 / 1,70
10.0 / 4,54
Cran-
king
RPM
55-60
55-60
55-60
Pelletized
Fertilizer
Ø 2-3,5 mm
Ø 2-5 mm
Grass seed
