Lesco OSH220L Manual de usuario
1
Original Instructions
IMPORTANT- READ CAREFULLY BEFORE USE AND KEEP FOR FUTURE REFERENCE
OSH220L
Overseeder
Self-Propelled Overseeder
Owner's Manual
OSH220L
NOT FOR REPRODUCTION
2
CONTENTS
SPECIFICATIONS AND SAFETY 3
INSTRUCTION LABELS 4
PACKING CHECKLIST 5
ASSEMBLY 6
OPERATION 7-8
MAINTENANCE & TROUBLESHOOTING 9-10
PARTS LIST 11-22
NOT FOR REPRODUCTION
3
SPECIFICATIONS
OSH220L
Engine: HP’
9.0 HP (6.7kW)
Engine: Model
GX270UTQA2
Engine: Type
Honda
Engine: Fuel Capacity
5.6 qt. (5.3 L)
Engine: Oil Capacity
1.16 qt. (1.1 L)
Total Unit Weight:
323# (147 kg)
Max. operating slope
20o
SAFETY
WARNING
This product can expose you to chemicals including gasoline engine exhaust, which is known to the State
of California to cause cancer, and carbon monoxide, which is known to the State of California to cause
birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
NOT FOR REPRODUCTION
4
INSTRUCTION LABELS
The labels shown below were installed on your Overseeder. If any labels are damaged or missing, replace them before operating
this equipment. Item numbers from the Illustrated Parts List and part numbers are provided for convenience in ordering
replacement labels. The correct position for each label may be determined by referring to the Figure and Item numbers shown.
LABEL DANGER KEEP HANDS LABEL CLUTCH ITEM #142 LABEL TRANS. RELEASE
AND FEET AWAY P/N 500177 ITEM #146 P/N 351507
ITEM #145 P/N 400424
LABEL CAUTION GUARDS LABEL DEPTH GAUGE
ITEM #133 P/N 900327 ITEM #59 P/N 351504
LABEL INSTRUCTIONS SEEDER BOX LABEL SEED METERING
ITEM #56 P/N 351501 ITEM #66 P/N 351503
(pg 12) (pg 12)
ENGINE LABELS
HONDA
NOT FOR REPRODUCTION
5
PACKING CHECKLIST
Your Overseeder is shipped from the factory in one carton.
PUT OIL IN ENGINE BEFORE STARTING
READ all safety instructions before assembling unit.
TAKE CAUTION when removing the unit from the box, the Handle Assembly is attached to the unit and
cables could snag.
Boxing Parts
Checklist
Honda 9 OHV
Parts bag
P/N-351009
Foot pedal
assembly
PARTS BAG & LITERATURE
General Safety and Warnings Manual - 400972
Owner's Manual - 5109836
Quick Setup Guide - 351529
Warranty Sheet - 100305
Inner Pivot Shaft Pin - 351421
Hardware Kit - 351349
NOT FOR REPRODUCTION
6
ASSEMBLY
NOTE: Items in ( ) can be referenced in the Parts Illustrations and Parts Lists on pages 11-22.
1. UNFOLD the upper handle and slide handle lock loops (item 35) into place to secure the upper handle to the lower.
2. ATTACH the bar of the foot pedal to the bracket located on the engine. Use the lock nut (item 93) from the parts bag.
3. ATTACH the pedal section to the rear of the frame between the two brackets by aligning the holes and inserting the tube
(item 201) from the parts bag.
4. TAP the two pins (item 202) into both ends of the tube installed in step 3, and using pliers, spread the cotter pins to keep
it from coming out.
5. CHECK engine oil level and fill to proper level with engine manufacturers recommended grade of oil. Make sure to adjust
the machine so that the engine is level during checking. See engine manufacturers’ instruction manual.
6. CONNECT spark plug wire.
93
201
202
NOT FOR REPRODUCTION
7
OPERATION
ADJUSTING BLADE DEPTH
The depth of the blades can be raised or lowered by rotating the knob located at the rear of the
machine. The relative depth of the blades can be gauged by using the depth scale located on
the rear of the machine and the bar next to it. (See Fig. 1)
NOTE: Items in ( ) can be referenced in the Parts Illustrations and Parts Lists on pages 11-22.
FOLDING HANDLE
This unit is equipped with a folding upper handle for easier storage and transportation. The handle can be folded by sliding the
handle lock loops (item 35) up. This releases the upper handle, allowing it to be folded over the unit.
BLADE POSITION & DEPTH CONTROL LEVER
The blades can be raised or lowered into the ground by the height adjustment foot pedal at the
rear of the unit. The blades will be in lowered position when the foot pedal is unlocked from the
bracket and will be in transport position when the pedal is locked to the bracket. See Fig. 2 & 3
for operation. The resulting blade depth can be adjusted higher or lower.
VERTI-CUTTING OPERATION
SET DEPTH: With engine off, set the raking depth so that the blades just touch on a flat surface (i.e. driveway, or sidewalk).
ENGAGE BLADES: Push the Reel Lever down on the operator handle (upper left side). NOTE: When engaging the blades in
heavy load conditions (i.e. heavy thatch, or very uneven turf), push down on the operator handle lifting the front wheels slightly.
Engage the blades. Slowly lower the unit into the turf.
SLICE: Verti-cut a small test area and examine the results. Some thatch and cut stems should be removed and deposited on top
of the healthy grass. Grass runners should be cut and ready for removal. If excessive damage occurs to healthy grass, adjust
the blade depth to decrease damage. Continue raking the yard, working in one direction (i.e. north-south, or east-west). NOTE: If
a large drop in engine RPM occurs, or bounces during operation, the blade depth is set too low.
REMOVE THATCH/STEMS: After verti-cutting, a layer of thatch and cut stems will be deposited over the top of the lawn. We
suggest the use of a lawn vacuum or wheeled blower for collection and removal of the thatch/stems.
OVERSEEDING OPERATION
DRY: Be sure grass is dry. Wet conditions can cause increased damage to healthy grass.
SEED:Spread grass seed according to the seed suppliers directions (e.g. 10 lbs. per 1000 ft2 [4.5 kg. per 93 m2]) Adjustments to
the seed drop is located on the front of the unit on the seed dial and should be used in conjunction with the seed chart on the
console.
SET DEPTH: With engine off, set the raking depth so that the blades reach 1/4"-1/2" (6-12 mm) below a flat surface (i.e. driveway,
or sidewalk).
ENGAGE REEL AND SEED DROP: Push down on the reel lever on the operators handle. NOTE: When engaging the reel in heavy
load conditions (i.e. heavy thatch, or very uneven turf), push down on the operators handle lifting the front wheels slightly. Engage
the reel. Slowly lower the unit into the turf.
SLICE: Run machine over the area that has been seeded to incorporate the seed into the soil. If excessive damage occurs to
healthy grass, adjust the blade depth to decrease damage. Continue raking the yard, working in one direction (i.e. north-south, or
east-west). NOTE: If a large drop in engine RPM occurs, or bounces during operation, the blade depth is set too low.
WATER/FERTILIZE: After the seed has been worked into the soil, water and fertilize according to the seed supplier’s directions.
Pressing on the outside tabs of the pedal will allow it to unlock
from the bracket and lower into position. (See Fig. 2)
Pressing on the center of the pedal and pushing it into the bracket
will allow it to be locked in transport position. (See Fig. 3)
Fig. 1
Fig. 2
Fig. 3
NOT FOR REPRODUCTION
8
Fig. 6
Fig. 5
ADJUSTING SEED RATE
INSTRUCTION LABEL P/N 351501
To set the seed flow rate, loosen the knob on the indicator dial and turn it to the
corresponding stop setting on the seed application chart (below or on the console) for the
type and amount of seed being used. (See Fig. 4)
*****TIPS*****
Before beginning, it is best to evaluate the condition of the lawn by cutting one or more core samples from area to be treated. A core can
be cut using a piece of PVC, or metal pipe. Hammer the pipe into the ground, remove it, push the core out of the pipe and inspect it to
determine the depth of thatch in your yard.
MOW
Mow the lawn to its normal cut height. Be sure grass is dry. Wet conditions can cause increased damage to healthy grass.
INSPECT
Check the lawn before beginning work. Remove all rocks, wire, string, or other objects that can present a hazard during work.
IDENTIFY
Mark all fixed objects to be avoided during work, such as sprinkler heads, water valves, buried cables, or clothes line anchors, etc.
THATCH
Thatch is a dense layer of dead grass, clippings, and roots that builds up over time at the base of the lawn preventing air, water, and
fertilizer from reaching the soil. This can cause shallow root development and make a lawn more susceptible to drought and disease.
Thatch also provides an ideal environment for insects to hide and multiply. Periodic removal of thatch will keep your lawn in good health.
HEAVY THATCH
Lawns with an excessive amount of thatch will require multiple treatments for effective removal. Trying to remove excessive thatch
(greater than 3/4"[19 mm] deep) in one treatment will damage or destroy the living part of the lawn. It is best to remove heavy thatch in
seasonal treatments (i.e. spring, and fall).
SLOPES
Rake slopes across not up and down the slope. This is much easier and safer for the operator and is better for the lawn. Raking across
will help to reduce runoff during watering and allow the sloped ground to hold more seed, fertilizer, and water. The unit’s maximum
operating slope is 35% or 19°.
DEPTH
The wide range of depth adjustment on your unit is provided to allow for blade wear. Setting the reel deeper will not produce better results.
The flail reel is intended to be set so it just touches the surface on flat ground. The slicing reel should be set even with the ground for verti-
slicing work, and set to a maximum 1/2" depth for overseeding. Setting the reel deeper will only result in premature wear on the unit (i.e.
failed belt). If you desire to work the ground deeper than the above guidelines, it should be done gradually in multiple passes.
SLICING / OVERSEEDING: Mow the lawn to shorter than the normal cut height before starting (i.e. approximately 2" tall for fescue grass).
For the best result, slice/overseed in single pass pattern (See Fig. 5 & 6).
Fig. 4
NOT FOR REPRODUCTION
9
MAINTENANCE
NOTE: Items in ( ) can be referenced in the Parts Illustrations and Parts Lists on pages 11-22.
PERIODIC MAINTENANCE
Periodic maintenance should be performed at the following intervals:
Maintenance Operation
Every Use (daily)
Every 25 Hours
Inspect for loose, worn or damaged parts
Check engine oil
Inspect belts
Engine (See Engine Manual)
Grease bearings
Inspect and clean engine air filter
Oil height adjustment linkage
SLICING BLADE WEAR
1. Wait for engine to cool and disconnect spark plug.
2.Close fuel valve on engine (if available).
3. Lean unit back onto lower handles and secure in place.
4. Inspect blades for wear and immediately replace any deformed or cracked blades. Measure the overall diameter of the
blade.
5. If blades are warped or are no longer sharp, they must be replaced. NOTE: We recommend replacing all the blades at
once.
ENGINE BELT REPLACEMENT
1. Wait for engine to cool and disconnect spark plug.
2. Place the rear of the unit on blocks.
3. Remove the right rear tire (item 11) and spring (item 155) attaching the housing to the frame.
4. Remove three screws (item 114) holding the belt guard (item 19) in place.
5.Remove the four screws (item 107) holding the mule drive assembly (item 60) in place.
6. Remove the belt (item 14) by rotating the mule drive pulley and walking it out of the groove, and remove the mule
assembly leaving the belt on the transmission.
7. Remove the carriage bolt and nuts holding the right bearing on the jackshaft. Do not remove the bearing and pulley.
8. Remove the belt guard (item 58) by removing the three screws (item 114).
9. Walk the belt off of the crankshaft pulley, and then slide it down the jackshaft to the bearing hole. This will allow the belt
to be slid around the mule pulley.
10. Replace the belt by feeding it into the hole and around the pulley where the old one was removed. Make sure it is seated
in the jackshaft pulley and then walk it onto the crankshaft pulley making sure it is inside the belt fingers.
11. Reattach the bearing and tighten the hardware securely.
12. Reattach the mule drive and belt, making sure that the belt is seated properly in the transmission pulley and the mule
drive assembly.
13. Check the idler tension on the belt when the drive lever is engaged, if it is too loose, the spring (item 82) holding the idler
arm will need to be replaced.
14. Reattach the guards, tire, spring and spark plug and make sure of proper operation.
NOT FOR REPRODUCTION
10
TROUBLESHOOTING
MULE BELT REPLACEMENT
1. Wait for engine to cool and disconnect spark plug.
2. Place the rear of the unit on blocks.
3. Remove the right rear tire (item 11) and spring (item 155) attaching the housing to the frame.
4. Remove (3) screws (item 114) holding the belt guard (item 19) in place.
5.Remove the four screws (item 107) holding the mule drive assembly (item 60) in place. This will allow access to the belt.
6. Remove the belt (item 14) by rotating the mule drive pulley and walking it out of the groove, and then sliding it off of the
transmission. Discard old belt.
7. Install new belt using same procedure to walk the belt into the groove, making sure it is seated fully in all pulleys. Reattach
the mule drive assembly.
8. With new belt installed, pull the drive levers up and make sure the idler pulley puts tension on the cable. The proper
adjustment should have the drive lever fully engaged and the belt should be snug on the pulleys.
9. Re-install the belt guard, spring, and tire, then reattach the spark plug.
REEL BELT REPLACEMENT
1. Wait for engine to cool and disconnect spark plug.
2. Remove two screws (item 38) holding the belt guard (item 20) in place
3. Remove the belt (item 17) by rotating the reel pulley (item16) and walking it out of the groove. Discard old belt.
4. Install new belt using same procedure to walk the belt into the groove, making sure that it is inside the belt fingers.
5. With new belt installed, push the reel drive lever down and make sure the idler pulley puts tension on the cable. The proper
adjustment should have the blade lever fully engaged and the belt should be snug on the pulleys.
6. Re-install the belt guard and reattach the spark plug.
Problem Possible Cause Solution
Abnormal vibration
Damaged or missing blades. Loose
handle bolts. Loose engine bolts.
Stop work immediately. Replace any
damaged or missing blades. Tighten all
loose nuts and bolts.
Engine stalls or labors when
raking
Blades set too deep into ground.
Raise blades so that they just touch
the ground on a level surface.
Engine will not start
Stop switch off (Honda only). Throttle
in off position.
Check choke position.
Out of gasoline or bad, old gasoline. Check gasoline.
Spark Plug wire disconnected. Connect spark plug wire.
Gas valve off. Turn on gas valve.
Dirty air cleaner.
Clean or replace air cleaner. Contact a
qualified service person.
Engine is locked, will not pull
over
Debris locked against reel, or drive
pulleys. Engine problem.
Pull spark plug wire and remove debris.
Contact an engine servicing dealer for
engine problems.
NOT FOR REPRODUCTION
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