Classen HTS-20HD User manual

MAN 4176449 Rev A 06-2018 Original Language Instructions
MODELS:
HTS-20HD
Hydro Overseeder Honda GX270
HYDRO OVERSEEDER
OPERATOR’S, PARTS, & SAFETY MANUAL

CALIFORNIA
Proposition 65 Warning
Diesel engine exhaust and some
of its constituents are known to the
State of California to cause cancer,
birth defects and other reproductive
harm.
WARNING
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects or other reproductive harm.
CALIFORNIA
Proposition 65 Warning
Battery posts, terminals, wiring
insulation, and related accessories
contain lead and lead compounds,
chemicals known to the State of
California to cause cancer and birth
defects or other reproductive harm.
WASH HANDS AFTER HANDLING.

3
HTS-20HD
06-2018
TABLE OF CONTENTS FIGURES PAGE
SAFETY.......................................................................................................................................................4-10
SPECIFICATIONS.......................................................................................................................................... 11
LABELS....................................................................................................................................................12, 13
SET-UP INSTRUCTIONS............................................................................................................................... 14
CONTROLS .............................................................................................................................................15, 16
OPERATION ............................................................................................................................................17, 18
MAINTENANCE/ STORAGE.....................................................................................................................19-23
TROUBLESHOOTING ...................................................................................................................................24
PARTS SECTION........................................................................................................................................... 25
HANDLE ASSEMBLY ...............................................................................................................................26, 27
DRIVE ASSEMBLY.............................................. `................................................................................... 28, 29
REEL ASSEMBLY .................................................................................................................................... 30, 31
HOPPER ASSEMBLY ..............................................................................................................................32, 33
ASSEMBLY LABELS................................................................................................................................ 34, 35
WARRANTY ............................................................................................................................... BACK COVER
IMPORTANT MESSAGE
Thank you for purchasing this Classen product. You have purchased a world class product, one of the best designed and built anywhere.
This machine comes with an Operation and Safety Manual, Parts and Service Manual, and Engine Manual. The useful life and good service you
receive from this machine depends to a large extent on how well you read and understand these manuals. Treat your machine properly, lubricate
and adjust it as instructed, and it will give you many years of reliable service.
Your safe use of this Classen product is one of our prime design objectives. Many safety features are built in, but we also rely on your good
sense and care to achieve accident-free operation. For best protection, study the manuals thoroughly. Learn the proper operation of all controls.
Observe all safety precautions. Follow all instructions and warnings completely. Do not remove or defeat any safety features. Make sure those
who operate this machine are as well informed and careful in its use as you are.
See a Classen dealer for any service or parts needed. Classen service ensures that you continue to receive the best results possible from Classen
products. You can trust Classen replacement parts because they are manufactured with the same high precision and quality as the original parts.
Classen designs and builds its equipment to serve many years in a safe and productive manner. For longest life, use this machine only as
directed in the manuals, keep it in good repair and follow safety warnings and instructions. You’ll always be glad you did.
Classen
Schiller Grounds Care, Inc.
1028 Street Road
Southampton, PA 18966-4217
This Operator, Parts and Safety Manual is part of the machine. Suppliers of both
new and second-hand machines must make sure that this manual is provided
with the machine THESE INSTRUCTIONS ARE FOR YOUR SAFEY. PLEASE
READ THROUGH THEM THOROUGHLY BEFORE USE AND RETAIN THEM FOR
FUTURE REFERENCE.

4
HTS-20HD
MODEL NUMBER: This number appears on
sales literature, technical manuals and price lists
and serial tag.
SERIAL NUMBER: This number appears only
on your unit. It contains the model number fol-
lowed consecutively by the serial number. Use
this number when ordering parts or seeking war-
ranty information.
Schiller Grounds Care, Inc.
1028 Street Road
Southampton, PA 18966 U.S.A
Phone: [phone]
Fax: [phone]
MODEL NUMBER
SERIA
L NUMBER
SAFETY
NOTICE !!!
Unauthorized modications may present extreme
safety hazards to operators and bystanders and
could also result in product damage.
Schiller Grounds Care, Inc. strongly warns against,
rejects and disclaims any modications, add-on
accessories or product alterations that are not
designed, developed, tested and approved by Schiller
Grounds Care, Inc. Engineering Department. Any
Schiller Grounds Care, Inc. product that is altered,
modied or changed in any manner not specically
authorized after original manufacture-including the
addition of “after-market” accessories or component
parts not specically approved by Schiller Grounds
Care, Inc. will result in the Schiller Grounds Care,
Inc. Warranty being voided.
Any and all liability for personal injury and/or
property damage caused by any unauthorized
modications, add-on accessories or products not
approved by Schiller Grounds Care, Inc. will be
considered the responsibility of the individual(s) or
company designing and/or making such changes.
Schiller Grounds Care, Inc. will vigorously pursue
full indemnification and costs from any party
responsible for such unauthorized post-manufacture
modications and/or accessories should personal
injury and/or property damage result.
This symbol means:
ATTENTION!
BECOME ALERT!
Your safety and the safety of others is involved.
Signal word denitions:
The signal words below are used to identify levels
of hazard seriousness. These words appear in this
manual and on the safety labels attached to Schiller
Grounds Care, Inc. machines. For your safety and
the safety of others, read and follow the information
given with these signal words and/or the symbol
shown above.
DANGER indicates an imminently hazardous
situation which, if not avoided, WILL result in death
or serious injury.
WARNING indicates a potentially hazardous
situation which, if not avoided, COULD result in
death or serious injury.
CAUTION indicates a potentially hazardous situation
which, if not avoided, MAY result in minor or moderate
injury. It may also be used to alert against unsafe
practices or property damage.
CAUTION used without the safety alert symbol
indicates a potentially hazardous situation which, if
not avoided, MAY result in property damage.

5
HTS-20HD SAFETY
WARNING
If the seeder is used improperly or safety
precautions are not followed, the users
risk serious injury to themselves, others
and property. Read and understand this
manual before attempting to operate this
seeder.
CAUTION
Slicing blades will continue to run for
several seconds after turning off the seeder.
Wait until the blades have completely
stopped before lifting the seeder or
conducting inspection and maintenance.
WARNING
Some dust and debris created by the use of
the tool could contain chemicals know to
the State of California to cause cancer and
birth defects or other reproductive harm.
Some examples of these chemicals are:
• Chemicals in fertilizers
• Compounds in insecticides, herbicides
and pesticides.
• Arsenic and chromium from chemically
treated lumber
Your risk from exposure to these chemicals
varies, and depends on how often you do
this type of work. To reduce your exposure,
work in a well ventilated area and with
approved safety equipment, such as dust
masks that are specically designed to
lter out microscopic particles.
WARNING
Adopt proper measures to protect yourself
against vibration exposures. Take the whole
work process including times the seeder is
running under no load or switched off into
consideration. Proper measures include
among others, regular maintenance and
care of product and accessories, keeping
hands warm, periodic breaks and proper
planning of work processes.
WARNING
In some countries regulations dene at
what time of the day and on what special
days products are allowed to be used and
what restrictions apply! Ask your local
agencies for all detailed information and
observe regulations!.
SAFETY DECAL INFORMATION: On the product, the rating label, and within these
instructions you will nd among others the following symbols and abbreviations.
Familiarize yourself with them to reduce hazards like personal injuries and damage to
property.
Caution / Warning.
Read the instruction manual.
Wear hearing protection.
Wear eye protection.
Wear a dust mask.
Wear protective gloves.
Wear protective, slip-resistant footwear.
Pay special attention when working on the cutting
device! Pay special attention when working on or
near the slicing blades!

6
HTS-20HD
SAFETY
• Do not operate machine while under the
inuence of drugs or alcohol, or any other
condition of impairment.
• The owner/user can prevent and is respon-
sible for accidents or injuries occurring to
themselves, other people, or property.
SITE PREPARATION &
CIRCUMSTANCES
• Evaluate the terrain to determine how to safely
perform the job. Only use accessories and
attachments approved by the manufacturer.
• Clear the area of objects such as rocks, toys,
wire or any other debris that may be thrown or
get tangled in the seeder.
• Be sure the area is clear of pets and people,
especially young children. Never assume they
will remain where you last saw them. Stop the
machine if any enter the area.
• Keep work area clean and well lit. Cluttered,
dark areas invite accidents. Work only in day-
light or in good articial light.
• Keep in mind that the operator or user is
responsible for accidents or hazards occurring
to other people or their property.
• Exercise extreme caution when changing
direction on slopes.
• Avoid dangerous environments. Do not use
the seeder in rain or in damp or wet locations.
Do not operate the seeder in gaseous or
explosive atmospheres or use the seeder new
ammable or combustible liquids. Engines
in these type of tools normally spark, and the
sparks might ignite fumes.
• Be aware that the seeder may unexpectedly
bounce upward or jump forward if the blades
should strike buried obstacles such as large
stones, roots, or stumps.
OPERATOR PREPARATION & TRAINING
READ THE OPERATION &
SAFETY MANUAL
• If an operator or mechanic
cannot read English, it is
the owner's responsibility
to explain this material
to them. If any portion of this material is
unclear, contact your factory representative
for clarication.
• Become familiar with the safe operation of
the equipment, operator controls and safety
signs. Be prepared to stop the engine quickly
in an emergency. Do not operate or allow
another person to operate this machine if
there are any questions about safety.
• All operators and mechanics should be
trained. The owner is responsible for training
the users.
• Dress properly. Always wear proper non-slip
footwear and long trousers while working.
Do not operate when barefoot or wearing
open sandals. Do not wear loose clothing or
jewelry as such articles can become caught in
moving parts. Wear a protective covering to
contain long hair. Wearing protective gloves
is recommended when working outdoors.
Use safety glasses and hearing protection.
• Wear appropriate hearing protection.
• Never allow children, unskilled or improperly
trained people to operate this equipment.
Local regulations can restrict the age of the
operator.
• Do not put hands or feet near or under
rotating parts.
• Never pick up or carry the unit while the
engine is running.
• Keep warning labels and this operator’s
manual legible and intact. Replacement labels
and manuals are available from the factory.
WARNING
WARNING

7
HTS-20HD SAFETY
MACHINE PREPARATION
• Read engine manual.
• Do not tamper with or defeat safety devices.
Keep guards, shields and interlock safety de-
vices in place and in proper working condition.
They are for your protection.
• Keep all fasteners such as nuts, bolts, and pins
well secured.
• Check for damaged parts – Before further
use of the seeder, a guard or other part that
is damaged should be carefully checked to
determine that it will operate properly and
perform its intended function. Check for
alignment of moving parts, binding of moving
parts, breakage of parts, mounting, and any
other condition that may affect its operation.
A guard or other part that is damaged should
be properly repaired or replaced.
• Verify that machine and attachments, if any,
are in good operating condition.
• Do not engage seeder until ready to use.
• The engine housing and exhaust remain hot
for a short period after the seeder is turned
OFF. Allow the engine and exhaust to cool
completely before touching or storing near
combustible material.
OPERATING SAFELY
IN GENERAL
• Use extra care when loading or unloading the
machine into a trailer or truck.
• Never operate without guards, plates, or other
safety protective devices in place.
• Do not run the engine in an enclosed area
where dangerous carbon monoxide fumes can
collect.
• Never leave a machine unattended. Turn off
seeder and stop engine before leaving the
machine.
WARNING
WARNING
• Use extreme caution when reversing or pulling
machine towards you.
• Stop operation if someone approaches.
STARTING
• Start according to instructions in this manual or
on the machine.
• Before attempting to start the engine, make
sure the seeder is disengaged.
• When starting the engine, make sure hands
and feet are clear of the seeder.
• Do not engage seeder at full throttle. Set
throttle to idle or lowest possible engine speed.
• Do not change engine governor settings or
overspeed the engine. Operating the engine
at excessive speed can increase the hazard of
personal injury.
OPERATING ON SLOPES
• Use extra care when working on slopes
• Do not operate on slopes if uneasy or
uncertain. Ultimate responsibility for safe
operation on slopes rests with the operator.
• Do not operate on steep slopes.
• Keep all movement on slopes slow and
gradual.
• Do not seed near drop-offs, ditches or
embankments. The machine could suddenly
turn over if a wheel runs over the edge or an
edge caves in.
• Do not turn on slopes unless necessary, and
then turn slowly and downhill when possible.
• Be sure of your footing on slopes.
WARNING
WARNING

8
HTS-20HD
SAFETY
INTERRUPTING OPERATION
Before leaving the operator’s
position, shut off engine.
• Stop the engine, disengage the blade, set
parking brake and wait until the blade stops
rotating:
- before refueling.
- before making depth adjustment unless the
adjustment can be made from the operator’s
position.
• Stop the engine, disengage the seeder, set
parking brake, and wait until the blade stops
rotating and disconnect the spark plug wire:
- before clearing blockages or unclogging;
- before checking, cleaning or working on the
machine;
- after striking a foreign object. Inspect the
machine for damage and have repairs made
as needed before restarting;
- if the machine begins to vibrate abnormally:
shut off machine immediately. Inspect
and have repairs made as needed before
restarting;
- except for repairs or adjustments as
specically noted, such as for carburetor
adjustment, where the engine must be
running. Keep hands and feet clear of
moving parts in these circumstances.
• Allow the seeder to come to a complete stop
when stopping operation to clear blockages,
unclog, inspect the machine, do maintenance
or repair.
• Reduce the throttle setting during engine
shutdown and, if the engine is provided with a
shutoff valve, turn the fuel off at the conclusion
of operation.
MAINTENANCE SAFETY
Maintain machine according to manufacturer's
schedule and instructions for maximum safety and
best results.
• Park machine on level ground.
• Never allow untrained personnel to service
machine.
• Guards should only be removed by a qualied
technician for maintenance or service.
Replace when work is completed.
• Adjust or repair only after the engine has been
stopped and the seeder has stopped moving.
• Disconnect spark plug wire(s) before doing any
maintenance.
• Replace parts if worn, damaged or faulty.
For best results, always replace with parts
recommended by the manufacturer.
• Do not dismantle the machine without releasing
or restraining forces which may cause parts to
move suddenly.
• Provide adequate support, e.g. jack stands for
lifted machine or parts if working beneath.
• Do not put hands or feet near or under rotating
parts.
• Clean up spilled oil or fuel thoroughly.
• Replace faulty mufers.
• To reduce re hazards, keep the engine,
mufer, and fuel storage area free of grass,
leaves, debris buildup or grease.
• Never attempt to make adjustments while
the engine is running except for repairs or
adjustments as specically noted, such as
for carburetor adjustment, where the engine
must be running. Keep hands and feet clear of
moving parts in these circumstances.
WARNING WARNING

9
HTS-20HD SAFETY
STORAGE SAFETY
• Stop the engine and allow to cool before storing.
• Drain the fuel tank outdoors only.
• Store fuel in an approved container in a cool,
dry place.
• Keep the machine and fuel containers in a locked
storage place to prevent tampering and to keep
children from playing with them.
• Do not store the fuel container or equipment with
gasoline in the tank inside a building where fumes
may reach an open ame or spark.
• Appliances such as furnaces and water
heaters with a pilot light have an open ame.
• Keep gasoline storage area free of grass, leaves
and excessive grease to reduce re hazard.
• Clean debris from cutting units, drives, mufers
and engine to help prevent res.
• Clean up any spilled gasoline or oil in the
storage area.
•
• Store the seeder in a sheltered, dry, frost free,
well-ventilated place.
•
• When not in use, the seeder should be stored
indoors in a locked-up place out of the reach of
children.
FUEL SAFETY
• Gasoline is ammable; gaso-
line vapors are explosive.
Use extra care when handling.
• Store only in containers specically designed
for fuel.
• When refueling or checking fuel level:
- Stop the engine and allow to cool;
- Do not smoke;
- Refuel outdoors only;
- Use a funnel;
- Do not overll;
- If fuel is spilled, do not attempt to start the
engine until the spill is cleaned up and va-
pors have cleared.
- Replace caps on fuel containers and tanks
securely.
Sparks from static electricity can start res or
cause explosions. Flowing fuel can generate static
electricity. To prevent static electricity sparks:
• Keep containers electrically grounded. Do not
ll containers in a vehicle or on a truck or trailer
bed with a plastic liner. Fill containers on the
ground away from the vehicle.
• When practical, remove gasoline powered
equipment from the truck or trailer and refuel it
on the ground. If equipment must be refueled
on the truck or trailer, refuel from a portable
container rather than a dispenser nozzle.
• Keep the dispenser nozzle in contact with the
rim of the fuel tank or container opening until
fueling is complete. Do not use a nozzle lock-
open device.
• If fuel is spilled on clothing change it
immediately.
WARNING
BLADES
• Blades are sharp and can
cut. Use extra caution when
handling. Wear appropriate
personal protective equipment.
• Only replace blades. Never straighten or weld
them.
• Keep other persons away from blades.
WARNING
WARNING

10
HTS-20HD
VIBRATION AND NOISE
REDUCTION
To reduce the impact of noise and vibration emis-
sion, limit the time of operation, as well as wear
personal protective equipment.
Take the following points into account to minimize
the vibration and noise exposure risks:
• Only use the seeder as intended by its design
and these instructions.
• Ensure that the seeder is in good condition and
well maintained.
• Use correct blades and ensure they are in
good condition.
• Keep tight grip on the handle grips.
• Maintain this seeder in accordance with these
instructions and keep blades well lubricated.
• Plan your work schedule to spread product use
across a longer period of time.
RESIDUAL RISKS
Even if you are operating this seeder in accor-
dance with all the safety requirements, poten-
tial risks of injury and damage remain. The
following dangers can arise in connection with
the use of this product.
• Health defects resulting from vibration emis-
sion if the product is being used over long
periods of time or not properly managed and
maintained.
• Injuries and damage to property due to broken
components or the sudden impact of hidden
objects during use.
• Danger of injury and property damage caused
by thrown objects.
WARNING
WARNING
SAFETY

11
HTS-20HD SPECIFICATIONS
HTS-20H
Dimensions:
Width................................................................................31" (787 mm)
Length............................................................................57" (1448 mm)
Length (handle folded)...................................................46" (1168 mm)
Height (transport)...........................................................45" (1143 mm)
Height (handle folded).....................................................33" (838 mm)
Maximum gate Width.......................................................32" (813 mm)
Net Weight:
Weight.......................................................................300 lbs. (136 Kg)
Removable weights..................... ...................................................N/A
Speed:
Seed..........................................................................Forward...3 m.p.h
................................................................................Reverse..1.5 m.p.h
Engine:
Model HTS-20H
Model..........................................................................................GX270
Honda, 9.0 h.p., 4 cycle
Starter....................................................................Recoil, on/off switch
Governor.................................................................3600 RPM, no load
Fuel Tank........................................................................1.4 gal. (5.3 L)
Drive:
Machine........................................................Hydro Gear Transmission
Primary....................................................................Sheaves and Belts
Wheels:
Front & Rear......................................................................13 bX 5.00-6
Seeding:
Seeding Width..................................................................................20"
Blade Depth..........................................................10 position 0” -1.63"
Productivity..............................................................26,400 sq. ft / hour
Number of blades................................................ double blade 26 total

12
HTS-20HD
WARNING LABELS
Warning labels are an important part of the safety system incorporated in this machine.
Replace labels if damaged or illegible.
LABELS
WARNING
Operation of This Equipment
May Create Sparks That Can
Start Fires Around Dry
Vegetation. A Spark Arrestor
May be Required. The
Operator Should Contact
Local Fire Agencies For Laws
or Regulations Relating to
Fire Prevention
Requirements.
--This label meets California 4442.6
100504
100070
DO NOT OPERATE IN AN ENCLOSED AREA
WHICH IS AN ODORLESS DEADLY POISON
ENGINES PRODUCE CARBON MONOXIDE
DANGER
o
100060
EXCEED 150 F
SHIELDS MAY
MUFFLER AND
CAUTION
-Read and understand Operator
manual and labels.
-Wear hearing and eye protection.
-Replace labels and Operator
manual if lost or damaged.
BEFORE STARTING:
WARNING
-Lea y entienda el manual del
operador y las etiquetas.
-Pide que alguien lea y explique el
manual y las etiquetas a usted si
usted no lee Inglés.
-Use protección ocular y auditiva.
-No haga funcionar sin los
protectores en su lugar.
-Pare el motor antes de dar servicio
-La gente a más durante la
operación.
4165977
ADVERTENCIA
Antes de comenzar:
- ROTATING PARTS.
- DO NOT OPERATE WITH
COVER REMOVED 4168760
WARNING
4176208
Move right then pull out
to engage transmission.
4176207
4176205
4176205

13
HTS-20HD
Engage blades
Drop seed
See label at center of machine for:
Seed Application Chart
Lawn Preparation
Seeding Recommendations
Do not lower blades further than 1/4” into soil.
Replace or rotate blades when
depth selector is in red area.
Do not lower blades while on hard surfaces.
See Operator’s Manual for routine maintenance.
Before starting:
Read and understand Operator Manual and labels.
Wear hearing and eye protection.
Replace labels and Operator Manual
if lost or damaged.
Reverse
Forward
4176202
4176203
REPLACEWORN NEW
Green, yellow, red label near the lever indicate how much the blades are worn.
New blades will only need to be lowered into the green section.
Worn blades will be lowered into the yellow section.
Blades that need replacement will be lowered in the red section.
0.5
1.5
1.0
0.67
1.25
2.5
CENTIPEDE
1.25
2.25
1.75
0.75
1.0
1.33
2.51.5
St. AUGUSTINE
1000 SQ. FT.SEED TYPE
5.010
4.02.5
4.758.5
5.0 4.25
RYEGRASS
RATE LBS./
5.2512
4.7510
4.255.0
3.5 4.0FESCUE
3.256.0
2.754.0
2.0
2.25
1.5
2.5
BLUEGRASS
1.02.5
5.0 1.5
BERMUDA
1.53.5
1.01.5BENT GRASS
SETTING1000 SQ. FT.SEED TYPE
RATE LBS./
SEEDING
GROWTH.
LESS OFTEN TO PROMOTE ROOT
RECOMMENDATIONS:
FOR BEST RESULTS, OVERSEED IN
TWO PASSES OF 1/2 APPLICATION
RATE AT RIGHT ANGLES ON IN A
CRISSCROSS PATTERN. WATER
HEAVILY IMMEDIATELY THEN LIGHTLY
FOR 10 TO 14 DAYS KEEPING SOIL
MOIST. AFTER GERMINATION, WATER
LAWN WITH BROADCAST SPREADER.
CORE TYPE AERATOR. FERTILIZE
OF 1/2 INCH. AERATE LAWN WITH
AND REMOVE THATCH IN EXCESS
POWER RAKE TO DETHATCH LAWN
DO NOT WATER PRIOR TO SEEDING.
MOW LAWN TO 1 TO 2 INCH HEIGHT.
LAWN PREPARATION:
ARE SPEED DEPENDENT. FASTER SPEED DELIVERS LESS SEED.
THESE SETTINGS ARE APPROXIMATE GUIDELINES. SEEDING RATES
SEED APPLICATION CHART
SETTING
LABELS

14
HTS-20HD
SET-UP INSTRUCTIONS
SET-UP INSTRUCTIONS
NOTE: Units ship with no gas or oil.
1. Cut banding and roll seeder off pallet.
2. Unfold by pulling up on handle 1. Slide
lock rings 2down to lock handle in upright
position. Slide linkage coupler 3to the locked
position.
3. Add oil to the engine crankcase with the
engine resting in a level position. Refer to the
engine manufacturer’s Operator's manual for
the correct type and amount of oil. 4. Fill the fuel tank according to the engine
manufacturer specications.

15
HTS-20HD CONTROLS
THROTTLE (A)
Controls engine speed and vacuum suction
level.
CHOKE HANDLE (B)
Move to the “CHOKE” position to apply the
choke. Move to the “RUN” position to remove
the choke.
FUEL VALVE (C)
Move to the “OFF” position to shut off the fuel
whenever transporting the machine by trailer
or truck or during storage. Move to the “ON”
position before starting the engine. The “OFF”
position also can be used to “KILL” the engine
as a “KILL” switch is combined with the fuel
shutoff.
ENGINE SWITCH (D)
Move to the “OFF” position to stop the engine.
Move to the “ON” position before starting
engine.
RECOIL STARTER HANDLE (E)
Pull to turn over the engine to start it. Guide the
recoil starter handle back to the rope guide for
best rope life. Allowing the rope to snap back
will shorten rope life.
FREE WHEEL ROD (F)
Move the free-wheel rod to the right, then pull
out to engage the transmission. Push in, then
move to the left to disengage the transmission.
PARKING BRAKE ROD (G)
Move parking brake rod slightly up, to the left,
and then down to disengage the brake. Pull
brake rod up and then to the right, allowing it to
rest in the groove, in order to engage the brake.
FORWARD / REVERSE HANDLE (H)
Pull right control handle up to move the unit
forward or push down to move in reverse.
BLADE / SEED HANDLE (I)
Push down left control handle to engage the
blade and to begin dropping seed. Release to
disengage.

16
HTS-20HD
CONTROLS
BLADE / SEED HANDLE (J)
Pull the depth adjustment lever out and move
it towards the handles in order to lower the
blades (deeper into soil). Never lower the
blades while on hard surfaces. Blades should
never be lowered into soil more than ¼”.
Operating the machine with blades deeper
than ¼” will result in damage to the machine.
In addition, cutting into the soil deeper than ¼”
will hinder germination of seed.
Green, yellow, red labels near the lever
indicate how much the blades are worn. New
blades will only need to be lowered into the
green section. Worn blades will be lowered
into the yellow section. Blades that need
replacement will be lowered in the red section.
FLOATING SEED BOX PIN (K)
Unlatch and remove the pin to engage
the oating seed box. A oating seed box
maintains a constant height when riding over
small bumps in the soil. Leave the pin engaged
to not use the oating seed box feature.
SEED GATE ADJUSTMENT (L)
Loosen knob and adjust seed ow selector to
desired number for seed dispersion rate. See
the see application chart label at the center
of the machine to determine number. Tighten
knob.
J
K

17
HTS-20HD OPERATION
BEFORE STARTING THE ENGINE
1. Read the Operator and Engine Manuals.
Become familiar with the controls, how each
functions, and what it operates.
2. Check the engine oil level and transaxle uid
level. Add if necessary.
3 Fill the fuel tank with good quality, clean,
unleaded regular gasoline (petrol). Use a
funnel to avoid spilling.
STARTING THE ENGINE
1. Open the fuel valve.
2. Move the engine switch to the “ON” position.
3. Move the choke lever to the “CHOKE” position
for cold starts. (Choke may not be required to
start a warm engine. Too much choke use may
ood the engine and cause hard starting.)
4 Move the throttle to midway between the fast
and slow positions.
5. Pull the recoil starter slowly until resistance is
felt, then pull rmly to start the engine.
6. After the engine starts, slowly back the choke
off until the engine runs with no choke at all.
7. Set the desired engine speed with the throttle.
Keep engine speed low until familiar with
driving the machine.
OPERATING THE SEEDER
1. Ensure both handles are in a released, neutral
position.
2. Ensure blades are in the highest position, and
are not touching the ground.
3. Start the engine, keep engine speed low until
familiar with driving the machine.
4. Release the parking brake and engage the
transmission.
5. Drive the machine to the area to be seeded.
6. Once on soil, move depth adjustment so that
it is a maximum of 1/4” into the soil. Do not
lower blades while on a hard surface.
7. Engage the blade and seed handle and drive
machine to seed.
8. Once seeding is complete, raise blades to
highest position before driving the machine
on hard surfaces. Failure to raise the blade
before driving on hard surfaces will cause
damage to the machine.
STOPPING / TRANSPORTING THE SEEDER
DO NOT run the engine in an enclosed area where
dangerous carbon monoxide fumes can collect.
1. Ensure that the blades have been raised to the
highest position. Failure to raise the blades
before driving on hard surfaces will cause
damage to the machine.
2. Move the engine switch to the OFF position.
3. Turn the fuel valve to the OFF position.
4. Disengage the transmission if moving the
machine in an enclosed area.
5. Once the machine is in its nal location,
engage the transmission.
6. Engage the parking brake.
7. If folding the handles is desired, slide the
lock rings up on the handle, slide the linkage
coupler up on the transmission linkage, and
fold the handles downward. Failure to slide the
linkage coupler prior to folding the handles can
result in damage to the linkage.

18
HTS-20HD
STORAGE
STORAGE
To prevent possible explosion or ignition of
vaporized fuel, do not store equipment with fuel in
tank or carburetor in an enclosure with open ame
(for example, a furnace or water heater pilot).
Before the equipment is put into storage for
any period exceeding 30 days:
1. Drain all fuel from the fuel tank and fuel lines.
2. Start the engine and run until all the fuel is
used from the carburetor oat bowl and the
engine stops.
3. While the engine is still warm, drain the
crankcase oil and replace with the proper
weight oil corresponding to the season the
equipment will be next used.
4. Remove the spark plug and squirt a small
amount of engine oil into the cylinder. Slowly
pull the starter a few times to distribute oil in
the cylinder and reinstall the spark plug.
5. Top off if necessary. See engine manual for
details.
To put the equipment into service after an
extended period of storage:
1. Check for loose parts and tighten if necessary.
2. Fill the fuel tank and then check the engine oil
level.
3. Reinstall spark plug.
4. Start the engine and check for fuel leaks.
Repair any leaks before operating the unit.
Washing the machine is possible with water and a
mild detergent. Ensure all detergent is removed
after cleaning and thoroughly dry machine.
DO NOT use water near engine.
DO NOT use a pressure washer on the machine.

19
HTS-20HD MAINTENANCE
MAINTENANCE
Stop the engine and remove spark plug wire before performing any maintenance.
When replacement parts are required, use genuine Classen parts or parts with equivalent characteristics, including
type, strength and material. Failure to do so may result in product malfunction and possible injury to the operator and/
or bystanders.
Carbon monoxide present in the exhaust is an odorless and deadly gas. Never start or run the engine where exhaust
fumes can collect. Provide enough fresh air to keep fumes from getting too strong.
Replace any warning decals that become illegible immediately.
MAINTAINING TIRE PRESSURE
Check the tire pressure before each use. The maximum air pressure is not to exceed 40 psi (176 kPa).
LUBRICATING LINKAGES
Every 25 hours lubricate all linkages with dry-lm Teon lubricant. NOTE: Use a dry coating lubricant to avoid
attraction of dirt.
Maintenance Procedure Each Use Every 25 Hours
Tighten any hardware (nuts, bolts, etc.) that are found loose. X
Replace any broken or missing hardware (nuts, bolts, etc.) X
Check engine oil X
Check engine air lter X
Check tire pressure X
Check blades for damage and wear X
Ensure seed gate opens and closes freely X
Check for debris near wheels and under machine X
Check to see that set screws on pulley are tight X
Check condition of belts, guards, blades for damage or wear X
Lubricate all linkages X
Grease bearings X
BLADE ROTATION
Check the blades before each use. If the blades are
worn on one side, it is possible to rotate them.
1. Turn the engine to the OFF position and remove the
spark plug cable.
2. Thoroughly inspect the blades for cracks and wear.
If a blade is worn, it is recommended to rotate or
replace all blades at once. If blades are installed at
different lengths, then slicing application will not be
consistent. Additionally, the blades may inadvertently
be lowered beyond 1/4” into the ground, resulting in
damage to the machine.
3. Remove two bolts and nuts holding a blade. Rotate
the blade 180°, so the beveled side of the blade
faces away from the shaft assembly.
180°
4. Reinstall on shaft with bolts and nuts in orientation
removed.
5. Repeat for all blades.
6. Reinstall Blade Assembly following ‘Blade Assembly
Replacement procedure.

20
HTS-20HD
GREASE BEARINGS
Grease Bearings every 25 hours. There are four
grease bearings: two for the shaft assembly, and
two for the front wheels.
Grease front wheel bearings:
1. Turn engine to the OFF position and remove
the spark plug cable.
2. Using two people, push down on the handles
until the front wheels slightly elevate off of the
oor. Insert a block of wood under the front
hopper.
3. Remove the wheel e-rings and washers on
both front wheels. Remove wheels and keys,
do not lose wheel keys.
4. Connect the grease gun and pump
approximately 0.1 ounces of grease (one
standard pump) into each bearing. NOTE:
Over-packing a bearing with grease can result
in overheating of bearing and premature wear.
5. Slide wheels on machine and align the wheel
keyhole with the shaft keyhole and reinsert
keys. Reinstall washers and e-rings.
6. Using two people, push down on the handles
until hopper is slightly elevated off of blocks.
Remove blocks, and carefully lower machine.
Greasing shaft assembly bearings:
1. Turn the engine to the OFF position and
remove the spark plug cable.
2. Remove the right shaft cover by removing the
two bolts holding it on.
3. Remove the left shaft cover by removing the
ve bolts and washers holding it on.
4. Connect the grease gun and pump
approximately 0.1 ounces of grease (one
standard pump) into each bearing. NOTE:
Over-packing a bearing with grease can result
in overheating of bearing and premature wear.
5. Reinstall covers and spark plug cable.
SHAFT
STEP 2 & 4
SHAFT
STEP 3 & 4
WHEEL
STEP 3, 4 5
MAINTENANCE