Page 1
Operator´s manual
DT22
Please read these instructions carefully and make sure
you understand them before using the machine.
English
Page 2
TABLE OF CONTENTS
Operating Instructions for
Lawn Dethatcher DT22
with supplement for accessories
Introduction .................................................. 2
Congratulations ......................................... 2
Use ............................................................2
Insure your machine .................................. 2
Good service .............................................2
Serial number ............................................2
Symbols and decals.....................................3
Decals and machine-bound instructions ...3
Location of decals .....................................4
Translation of instructions .........................5
Safety instructions .......................................6
General use ...............................................6
Preparations ..............................................8
Operating ................................................... 9
Movement/Transport ...............................10
Storage ....................................................10
Children ...................................................10
Fuel system ............................................11
Maintenance ............................................12
Presentation ............................................... 13
Presentation ............................................ 13
Main components and operating
instruments ...........................................14
Engine ..................................................... 15
Cutting unit .............................................. 19
Blade versatility ....................................... 20
Setting blade height .................................20
Operation ....................................................21
Starting the engine .................................. 21
Cutting the engine ................................... 22
Before you start .......................................23
Starting ....................................................23
Finishing ..................................................23
Maintenance ............................................... 24
Maintenance schedule .............................24
Replacing the air filter .............................. 25
Cleaning the sludge reservoir ..................26
Idle adjustment ........................................26
Ignition system ......................................... 27
Cutting unit...............................................28
Two minute rule ....................................... 33
Cleaning and washing .............................32
Lubrication ................................................. 33
Lubrication schedule ................................33
General ....................................................33
Engine oil ................................................. 34
Depth knob with depth lock ...................... 35
Blades .....................................................35
Depth lever ..............................................35
Handle ..................................................... 35
Troubleshooting ........................................ 36
Storage ....................................................... 37
Winter storage .........................................37
Service ....................................................37
Technical data ............................................39
Assembly instructions ............................... 40
Assembly – delivery service .................... 40
Assembly directions,
catcher bag ........................................... 41
Assembly directions, seed hopper ..........42
Supplement ................................................44
Instructions for the catcher bag ...............44
Instructions for the seeder .......................46
Service journal ...........................................50
Delivery service ....................................... 50
After the first 20 hours ............................. 50
©2002 Husqvarna. All Rights Reserved.
Beatrice, NE. Printed in U.S.A.
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INTRODUCTION
Congratulations
Thank you for purchasing a Husqvarna lawn care product. Through your confidence in us, you
have chosen an exceptionally high quality product.
This manual is a valuable document. It describes your new Husqvarna machine. Read the manual
carefully before attempting to use the machine. Following the instructions (use, service,
maintenance, etc.) can considerably increase the lifespan of your machine and even increase its
resale value. Please contact your dealer for more information.
If you sell your Husqvarna machine, make sure to give the operator’s manual to the new owner.
Use
The dethatcher is used to remove the layer of thatch and surface-treat lawns, i.e. power-raking, demossing and collecting thatch in the form of old grass or moss. With an attachment, it can even be
used for seeding, both in initial sowing or overseeding.
Insure your machine
Contact your insurance company to check on insurance coverage for your new machine. You
should have all-inclusive insurance for liability, fire, damage and theft.
Good service
Husqvarna’s products are sold all over the world and only in specialized retail trade with complete
service. This ensures that you as a customer get only the best support and service. Before the
machine was delivered it underwent inspection and was adjusted by your dealer. When you need
spare parts or support in service questions, guarantee issues, etc., please consult the following
professional:
This Operator’s Manual belongs to machine
with serial number:
Engine
number:
Serial number
The machine’s serial number can be found on the printed plate attached to the rear side panel of
the machine. The plate includes the following information:
• The machine’s type designation (MODEL).
• The machine’s serial number (S/N).
Please state the type designation and serial number when ordering spare parts.
The engine’s serial number is punched in the crankcase above the oil drainage screw.
The engine type is specified on the crankcase under the air filter but also appears on the decal on
the starter.
Please state engine serial number and type when ordering replacement engine parts.
3
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SYMBOLS AND DECALS
WARNING!
Xxxx xxx xxxx xx xxxx x xxxx.
IMPORTANT INFORMATION
Xxxx xxx xxxx xx xxxx x xxxx.
Used in this publication to notify the reader of a
risk of personal injury, particularly if the
reader should neglect to follow instructions
given in the manual.
Decals and machine-bound instructions
1
4
5
8
6
Used in this publication to notify the reader of a
risk of material damage, particularly if the
reader should neglect to follow instructions
given in the manual.
Used also when there is a potential for misuse
or misassembly.
10
7
9
2
1. Husqvarna logo
2. Model designation DT22
3. Caution list
4. Height setting
5. Dial
3
8011-243
6. DANGER Watch your feet
7. Seed application chart
8. Warning for carbon monoxide
9. Open/Close
10. Transport/Engaged
4
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Location of decals
SYMBOLS AND DECALS
8
1
DT03
2
10
6
DT02
1. Husqvarna logo
2. Model designation DT22
3. Caution list
4. Height adjust
5. Seed Dial
5
7
9
DT22RF
3
6
4
6. DANGER Watch your feet
7. Seed application chart
8. Warning for carbon monoxide
9. Open/Close
10. Transport/Engaged
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SYMBOLS AND DECALS
Translation of instructions
Decal 7
Seed application chart
Values are approximate; quantities of seed depend
on the speed at which the machine is run. Faster
running speed results in sparser sowing.
Preparing the lawn
• Cut the grass to approximately 1-1.5 cm (1/2")
shorter than normal.
• Do not water before sowing.
• Remove the layer of old grass cuttings (thatch).
• Aerate the lawn with a ground aerator of the
coring type.
• Fertilize the lawn.
Seed application recommendations
• For best results, sow in two directions with a
45° angle between.
• Water generously immediately afterward and
continue watering moderately for 10–14 days
to keep the soil moist.
• After germination, water sporadically to
encourage root growth.
Decal 8
Warning
Engine exhaust, some of its constituents and certain
vehicle components contain or emit chemicals
considered by the State of California to cause
cancer, birth defects or other reproductive harm. The
engine emits carbon monoxide, which is a colorless,
poisonous gas. Do not use the machine in enclosed
spaces.
Decal 3
Important information
Read and make sure you understand the Operator’s
Manual before use or maintenance.
To obtain a replacement manual, please contact your
dealer.
Observe all safety instructions; otherwise you may
injure yourself or others around you.
Make sure that the machine is in serviceable
condition prior to use.
Make sure that all protective devices are in place
when the machine is in use.
Stop the engine and wait until all machine
movement comes to a standstill before service,
adjustment or cleaning.
Do not run the engine in poorly ventilated spaces.
Make sure nobody is in the vicinity of the machine
before starting and during use.
Avoid slopes that are too steep to use the machine
safely.
Clear any debris from the lawn prior to use.
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SAFETY INSTRUCTIONS
General use
The object of this manual is to help you use
your Husqvarna machine more safely and to
give you information about how to maintain
your machine. Please read the manual
carefully before attempting to use the machine.
If after reading the operator’s manual you are
still unsure about the safety risks associated
with use of the machine, you should not use
the machine. Please contact your dealer for
more information.
These safety instructions only address the
basics for safe use. It would be impossible in
the safety instructions to describe all possible
risk situations that could arise when using the
machine. You can, however, prevent accidents
by always using common sense.
To obtain extra copies of the operator’s
manual, please contact your dealer.
WARNING!
Under no circumstances may the original
design of the machine be modified
without written approval from the
manufacturer. Such modifications not
only affect the performance and
durability of the machine but may even
pose a safety risk for users and those in
the vicinity. Unauthorized modifications
to the design of the machine may absolve
the manufacturer from liability for any
resulting personal injury or property
damage. Modifying the machine without
written approval from the manufacturer
may void the guarantee.
IMPORTANT INFORMATION
Do not use the machine until you have
read the operator’s manual carefully and
understand the instructions given. All
maintenance work or adjustments not
described in this manual must be
performed by an authorized Husqvarna
service workshop.
• Read this manual carefully and make sure
you understand it before using the
machine or performing any maintenance. If
the user cannot read this manual, it is the
responsibility of the machine owner to
explain the contents to the user.
• Follow all safety instructions. Failure to do
so may result in injury to yourself or
others.
• Accident prevention regulations, other
general safety regulations, occupational
safety rules and traffic regulations must be
followed without fail.
8011-040
Read this manual carefully before starting the machine.
• All users shall be trained in use of the
machine. The owner is responsible for
training users.
• Engage an authorized Husqvarna
workshop for all service and repairs not
described in this manual.
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SAFETY INSTRUCTIONS
• Husqvarna original spare parts are
designed and specified to maintain high
quality and correct fit for optimal durability
and lifespan. From a safety point of view,
you should only use Husqvarna original
spare parts.
• Check that all safety decals are in place.
See the chapter ”Symbols and decals”.
• Learn how to use the machine and its
controls safely and learn to recognize the
safety decals.
• Only use the machine for sowing and
dethatching lawns. It is not intended for
any other use.
• Check that the machine is in serviceable
condition prior to use; see the chapter
”Maintenance/Maintenance schedule”.
• Only use the machine in daylight or in
other well-lit conditions. Keep the machine
a safe distance from holes or other
irregularities in the ground. Pay attention
to other possible risks.
• Only allow the machine to be used by
adults who are familiar with its use.
WARNING!
The engine can become very hot. To
avoid being burned, you must turn off the
engine and wait until all parts have cooled
before touching the engine.
WARNING!
Overexposure to vibration may lead to
circulatory or nerve damage, particularly
in people who have impaired circulation.
Contact your doctor if you experience
symptoms that could have been caused
by overexposure to vibration. Examples
of common symptoms include
numbness, pain, muscle weakness,
change of skin color or an
uncomfortable feeling of tingling. These
symptoms appear most frequently in the
fingers, hands or wrists.
• Never allow children or persons not trained
in the use of the machine to use or service
it. Local laws may regulate the age of the
user.
• People and animals can distract you
causing you to lose control of the machine.
For this reason, you should always
concentrate and focus on the task at hand.
• Never leave the machine unsupervised
with the engine running.
• Make sure that other people are nearby
when you are using the machine so that
you can call for help should an emergency
arise.
• The machine is tested and approved only
with the equipment originally provided or
recommended by the manufacturer.
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Preparations
SAFETY INSTRUCTIONS
• Make sure that you always have first aid
equipment at hand when using the
machine.
• Make sure nobody else is in the vicinity of
the machine when you start the engine,
engage the drive or run the machine.
• Make sure animals and people maintain a
safe distance from the machine.
• Clear the area of objects such as stones,
toys, steel wire, etc. that could become
caught in moving machine parts and
thrown out.
• Find and locate all fixed objects in the
ground, such as sprinkler systems, poles,
water valves, bases for washing lines, etc.
Be certain to check for hidden electrical
cables or similar in the surface of the lawn.
Always run the machine around these
objects. Never intentionally run the
machine over foreign objects.
WARNING!
Always use approved protective
clothing and approved protective
equipment when using the machine.
Protective clothing and protective
equipment cannot eliminate the risk of
accidents, but wearing proper clothing
and the correct equipment will reduce
the degree of injury should an accident
occur. Ask your dealer about approved
protective clothing and approved
protective equipment recommended by
Husqvarna.
• Make sure all guard plates and protective
cowlings are in place and intact when
using the machine.
• Makes sure no clothing, long hair or
jewelry can catch in moving machine parts.
• Never use the machine when barefoot.
Always wear protective shoes or protective
boots with anti-slip and preferably with
steel toes.
• Wear approved ear-protection when
running the machine. Ask your dealer
about approved ear-protection.
8011-198
8011-292
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SAFETY INSTRUCTIONS
Running
• Do not use the machine on grades of
more than 20°. We recommend working
across slopes rather than up and down.
This will yield a more even result. Do not
leave the machine standing on a slope
unattended.
• Do not use the machine if you are tired, if
you have consumed alcohol, or if you are
taking other drugs or medication that can
affect your vision, judgment or coordination.
• Never use the machine indoors or in
spaces lacking proper ventilation.
• Do not use the machine on any surface
other than grass.
• Make sure you have a proper foothold
when using the machine, particularly when
backing. Walk, don’t run. Never work on
wet grass. Poor traction may cause you to
slip.
• Keep your hands and feet away from
moving parts.
• Keep your hands and feet away from the
work tools.
8011-041
The engine exhaust is poisonous. Never run the engine
indoors.
8011-091
Keep your hands and feet away from moving parts.
• Slow down and be especially careful on
slopes. Make sure to run the machine in
the recommended direction on slopes. Be
careful when working close to sudden
changes in level.
• Smoking, open flames or sparks in the
vicinity of the machine are strictly
forbidden. Gasoline is extremely
flammable and carelessness in handling
can result in personal injury or fire.
• Stop and inspect the equipment if you run
over or into anything. If necessary, make
repairs before beginning again.
• Whatever happens, you should always
park the machine on even ground,
disengage the drive, turn off the engine
and wait until all moving parts have
stopped before leaving the operating
position behind the machine.
8011-289
Smoking near the machine is strictly prohibited.
WARNING!
Engine exhaust, some of its constituents
and certain vehicle components contain
or emit chemicals considered to cause
cancer, birth defects or other
reproductive harm. The engine emits
carbon monoxide, which is a colorless,
poisonous gas. Do not use the machine
in enclosed spaces.
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SAFETY INSTRUCTIONS
Movement/Transport
• To turn and steer the machine, press down on
the handle and turn on the back wheels.
• Turn off the engine and allow it to cool at least 2
minutes before transport.
• Collapse the handle if the machine is equipped
with a collapsible handle.
• Be careful and use safe lifting and moving
techniques when loading/unloading the
machine.
• We recommend having two people to lift the
machine.
• Fasten the machine properly in place with
approved fasteners, such as tension belts,
chains or rope. Always check that you are in
compliance with applicable traffic regulations
before transporting the machine.
Storage
• Allow the engine to cool before storing the
machine. Never store the machine near a
open flame.
• Store the machine with the fuel valve closed.
• Store the machine and fuel in such a way
that there is no risk that leaking fuel or fumes
can come in contact with flames or sparks
from electrical machines, electric engines,
relays, switches, boilers or similar.
• Store the machine in a locked space away
from children and adults untrained in use of
the machine.
8011-090
We recommend having two people to lift the machine.
8011-038
Keep children away from the machine.
Children
Serious accidents can occur if you fail to be on
guard for children in the vicinity of the machine.
Never assume that children will stay put where you
last saw them.
• Keep children away from the machine.
• Keep children away from the work area and
under close supervision by another adult.
• Keep an eye out and shut off the machine if
children enter the work area.
• Never allow children to operate the machine.
• Be particularly careful near corners, bushes,
trees or other objects that block your view.
8011-039
Keep children away from the work area.
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SAFETY INSTRUCTIONS
Fuel system
WARNING!
Gasoline and gasoline fumes are
poisonous and extremely flammable. Be
especially careful when handling
gasoline, as carelessness can result in
personal injury or fire.
• Only store fuel in containers approved for
that purpose.
• Never remove the fuel cap and fill the fuel
tank when the engine is running.
• Always stop the engine when refueling.
• Do not smoke when filling the gasoline
tank and do not pour gasoline in the
vicinity of sparks or open flame.
• Never fill the fuel tank indoors.
• Before starting the machine after refueling,
it should be moved at least 10 feet (3 M)
from the location where it was filled.
• Turn off the fuel supply for storage or
transport.
• If leaks arise in the fuel system, the engine
must not be started until the problem has
been resolved.
8011-037
Never fill the fuel tank indoors.
8011-036
Close the fuel valve.
• Check the fuel level before each use and
leave space for the fuel to expand,
because the heat from the engine and the
sun can otherwise cause the fuel to
expand and overflow.
• Avoid overfilling. If you spill gasoline on the
machine, wipe up the spill and wait until it
has evaporated before starting the engine.
If you spill gasoline on your clothing,
change your clothing.
12
8011-019
Fueling always poses an element of risk.
Page 13
SAFETY INSTRUCTIONS
Maintenance
• Never make adjustments with the engine
running.
• Disengage the drive units, shut off the
engine and wait until all moving parts come
to a complete stop before making
adjustments, performing maintenance or
cleaning the machine.
• Disconnect the spark plug cable before
beginning repair work.
• Keep all components in serviceable
condition and make sure all nuts, bolts, etc.
are tight. Replace worn or damaged
decals.
• Be careful when checking work tools. Use
gloves when performing maintenance
work.
8011-027
Disconnect the spark plug cable before repair work.
• Never allow persons not trained in the use
of the machine to perform service on it.
• Always park the machine on even ground
before performing maintenance or making
adjustments.
• Do not disassemble the engine. This can
invalidate your guarantee. Contact your
dealer if you have any questions regarding
service or guarantee matters. Follow all
maintenance instructions.
• Do not change the setting of governors and
avoid running the engine with overly high
RPMs. If you run the engine too fast, you
risk damaging the machine components.
• Do not modify safety equipment. Check
regularly to be sure it works properly. The
machine must not be run with defective or
disassembled safety equipment.
• The muffler is designed to maintain sound
levels at an approved level and keep direct
exhaust away from the user. Exhaust
gases from the engine are extremely hot
and may contain sparks that can cause
fires or burn the user.
WARNING!
Wait until all moving parts are completely
still before performing maintenance on
the machine.
Turn off the engine and remove the spark
plug cable.
8011-121
Keep the machine clean.
• Never use a machine with a defective
muffler.
• Reduce the risk of fire by removing grass,
leaves and other debris that may have
caught in the machine.
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PRESENTATION
Presentation
Congratulations on your choice of an
exceptionally high quality product. This
operator’s manual describes the Husqvarna
dethatcher. The machine is available in one
basic design—DT22.
The machine is equipped with a 5.5 hp Honda
four-cycle engine.
DT22 can be equipped with a catcher. It is
available as an accessory at your Husqvarna
dealer. It can be mounted aftermarket; see the
chapter ”Assembly instructions/Assembly
directions, catcher bag
DT03
Alternatively, DT22 can be equipped with a
seeder. It is available as an accessory at your
Husqvarna dealer. It can be mounted
aftermarket; see the chapter ”Assembly
instructions/Assembly directions, seed hopper
SD22”.
It is not possible to use a catcher and seeder
simultaneously.
DT02
DT22RF
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PRESENTATION
Main components and operating instruments
4
6
5
4
3
1
2
DT04
1. Engine
2. Depth knob with depth lock
3. Depth lever
4. Knob for collapsible handle
5. Clutch bail
6. Handle
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PRESENTATION
Engine
Exterior engine components and operating
instruments
1. Throttle control
8
2. Starter
3. Starter handle
4. Fuel valve
5. Choke
6. Air filter
7. Spark plug
8. Muffler
11. Oil dipstick engine
12. Oil drainage engine
13. Oil level meter
14. Engine switch
15. Fuel tank
16. Fuel filler cap
7
6
5
2
15
14
16
4
3
1
8011-043
Throttle control
The lever controls engine speed.
The image shows half throttle. Turning the
lever to the left increases throttle and to the
right decreases throttle.
Turning the lever completely to the right puts
the engine at idle. If the engine stalls in idle,
the idle speed can be adjusted; see the
chapter ”Maintenance/Idle adjustment”.
13
12
11
8011-252
8011-034
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PRESENTATION
Starter
The starter is of the magnapull type with spring
return. To replace the return spring or starter cord,
contact an authorized service workshop.
Starter handle
Misuse of the starter handle can damage the
starter. Never twist the starter cord around your
hand.
Pull out the handle slowly until the gears mesh. Do
not pull out the starter cord completely and do not
let go of the starter handle when extended.
Fuel valve
The fuel valve opens and closes the connection
between the tank and the carburetor.
The illustration shows the tank valve closed; to
open, turn the lever completely to the right. There is
no middle position.
Turn off the valve when the machine is not in use to
avoid flooding the carburetor.
The fuel valve is combined with a sludge reservoir.
For cleaning instructions see the chapter
”Maintenance/Cleaning the sludge reservoir”.
Choke
The choke opens and closes the choke valve in the
carburetor. This is only used to start a cold engine.
The image shows the choke valve open; to close,
turn the lever to the left. The midway positions can
be used. When the engine starts, the lever can be
turned gradually to the right as long as it continues
to run smoothly. Forgetting the choke is evident as
the engine runs roughly and produces black
smoke.
8011-044
8011-036
8011-035
This also results in increased fuel consumption.
Air filter
The engine air filter is located under the cowling. It
consists of a foam rubber pre-filter and a paper
filter cartridge. See the chapter ”Maintenance/Air
filter replacement” for cleaning instructions.
Running the machine with a dirty air filter will
cause the engine to run on partial choke and show
the same symptoms as a forgotten choke
described above. It can also be difficult to start.
8011-028
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OFF
ON
PRESENTATION
Spark plug
The engine spark plug is hidden under the ignition
cable shoe. When performing service, it is important
that the engine cannot start accidentally. For this
reason, always remove the ignition cable shoe from
the spark plug. To avoid pulling the cable, the cable
shoe is equipped with a special handle; see the
illustration.
Type of spark plug, see chapter ”Technical data”.
Service instructions, see chapter ”Maintenance/
Ignition system”.
Muffler
The engine muffler is equipped with a heat protective
cowling. Nonetheless, it still becomes hot when the
engine is running. Avoid touching the muffler when it
is warm. Risk for burns.
Oil dipstick
The dipstick for the crankcase oil reservoir is located
on the front of the engine. Refill the engine oil in the
hole where the dipstick fits.
When checking the oil level, the dipstick should not
be screwed in. The machine should be parked on
even ground with the engine stopped. Never run the
engine without the dipstick in place. The engine has
an electronic oil level guard. It stops and cannot be
started if the level becomes too low. Yet you should
not rely entirely on the level guard; rather you should
check the oil using the dipstick.
For normal use, we recommend SAE 10W-30-weight
engine oil service SF-SG; see also the chapter
”Lubrication/Engine oil”.
8011-027
8011-020
Oil drainage
The drainage screw for the crankcase oil reservoir is
located on the front of the engine.
IMPORTANT INFORMATION
Used engine oil is a health hazard and
legislation prohibits disposal on the ground
or in nature; it should always be disposed of
at a workshop or appropriate disposal location.
Avoid skin contact; wash with soap and water
in case of spills.
Engine switch
The engine switch stops the engine. The illustration
shows the switch in the OFF position (short circuited
electrical system). To start the engine, the switch
must be first set to the ON position.
18
8011-021
OFF
ON
8011-026
Page 19
PRESENTATION
Fuel tank
Underneath the tank, there is a fuel filter
combined with the fuel valve. The tank can be
filled with 3.6 liters/0.95 US Gal for the DT22.
Fueling
Read the safety instructions before fueling.
Keep the fuel and fuel tank clean. Avoid filling
the machine with dirty fuel. Make sure the fuel
cap is properly tightened and the gasket is not
damaged, particularly before washing the
machine.
8011-019
Use unleaded gasoline with minimum 86
octane rating. Never use gasoline mixed with
two-cycle oil. For ethanol and methanol fuel,
the following applies:
Maximum allowable ethanol 10% (volume).
Maximum allowable methanol 5% (volume).
Maximum allowable MTBE (Methyl Tertiary
Butyl Ether) 15% (volume).
If the engine ”bolts” at normal load it can be
damaged. Change the fuel. If this does not
help, contact an authorized service workshop.
Do not fill the tank completely; leave space for
the fuel to expand as it warms up.
WARNING!
Gasoline is highly flammable. Observe
caution and fill the tank outdoors.
(See the safety instructions.)
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Page 20
PRESENTATION
Cutting unit
Depth lever
Use the depth lever to raise and lower the
blades between working and transport
position. When the lever is up, the blades are
in working position. Blades should penetrate
the soil to a depth of 1/8" to 1/4" with a
maximum penetration of 1/2". Check your seed
bag for the manufacture’s recommended depth
of application.
Depth knob
The knob is used to adjust the cutting depth of
the blades. Turning the knob counterclockwise
increases the working depth. A shim has been
added at the factory to keep the blades from
penetrating the soil too deeply. As the blades
wear, remove the shim and store below the
depth lock until new blades are added, then
replace the shim in the original position.
DT03
DEPTH KNOB
DEPTH LOCK
Depth lock
The screw under the depth knob is used to lock
the depth knob to prevent it being changed by
machine vibrations. Undo the depth lock by
turning it counterclockwise before turning the
depth knob. Secure the depth knob with the
depth lock after adjusting settings.
Clutch
The clutch tightens the drive belt and engages
the drive for the blades. When the clutch lever
is pressed against the handle, the blades
begin to rotate. Hold the clutch tightly when
working so that the belt does not slide.
DT05
DT08
20
Page 21
PRESENTATION
Blade versatility
Flail blade
Thatch is the dense layer of clippings, roots
and stems that forms between the soil and the
base of the grass. As thatch builds up, it
prevents water, air and fertilizer from being
absorbed into the soil. This causes shallow
root development leading to vulnerability to
drought and frost. Excessive thatch also
creates an ideal environment for insects and
lawn diseases. Power-raking with flail blades
removes this thatch layer and restores your
lawn to good health. Flail blades offer the most
aggressive dethatching of all the blades
offered.
Delta blade
Delta blades were created primarily for
overseeding existing lawn. They effectively
incorporate grass seed into the soil. This is an
easy, reliable method for rejuvenating poor
lawns. The delta blade is also useful as a
vertical mower for cutting running stem
grasses and opening up the soil to oxygen,
water, nutrients and other chemicals. Delta
blades are also beneficial on slopes, terraces
and in high clay content soils where water
runoff is a problem. Blades should penetrate
the soil to a depth of 1/8" to 1/4" with a
maximum penetration of 1/2". Check your seed
bag for the manufacture’s recommended depth
of application.
Spring tine
Ideal for the established lawn that is not in need
of a complete renovation but requires
dethatching (dry-spots, fungus, etc.). Spring
tines are designed to pluck dead grass and
thatch out of the lawn without tearing or
damaging existing root structure. With the
flexible tines, the lawn is combed only 0.5 cm
into the soil, so it cannot penetrate the root
structure. Spring tines provide less aggressive
dethatching than flail blades.
Setting blade height
The blades are raised and lowered using a
depth lever on the right side of the machine.
The knob in front of the lever controls the
depth. Turning the knob counterclockwise
increases blade depth.
DT03
21
Page 22
OPERATION
OFF
ON
Starting the engine
Check that all daily maintenance as described
in the maintenance schedule has been
performed. Check that there is sufficient fuel in
the tank.
Fuel valve
Open the fuel valve. Turn the lever all the way
to the right.
Choke
When starting the engine warm, the lever
should be in the right position; see the
illustration.
When starting the engine cold or partially
warm, turn the lever completely or partly to the
left.
8011-072
Move the lever back to the right once the
engine starts. When the engine is cold, it may
be best to move the lever back in several
stages. Find the position where the engine
runs smoothly.
Throttle control
Set the throttle with about 1/3 of full throttle
from idle. This means 1/3 of the way from the
rightmost end stop.
Engine switch
Turn the engine switch clockwise to ON.
8011-035
8011-034
OFF
22
ON
8011-071
Page 23
OFF
ON
OPERATION
Starter handle
Misuse of the starter handle can damage the
starter. Do not twist the starter cord around
your hand.
Pull out the handle slowly until the gears mesh.
Then give a sharp pull on the starter handle.
Do not pull out the starter cord completely and
do not let go of the starter handle when
extended.
Throttle control
Adjust the engine speed with the throttle.
Moving the lever to the left increases throttle
and to the right decreases throttle.
8011-044
Cutting the engine
If the engine has been running full out, let it run
easily for about 30 seconds to 1 minute at low
speed.
Engine switch
Turn the engine switch counterclockwise to
OFF.
Fuel valve
Close the fuel valve. Turn the lever all the way
to the left (see illustration).
8011-034
OFF
ON
8011-026
8011-036
23
Page 24
OPERATION
Before you start
• Mow the lawn 1/2" shorter than normal.
• Allow the lawn to dry. Wet conditions can
cause extensive damage to healthy grass.
FLAIL BLADES OR SPRING TINES:
• Flail Blades or Spring Tines: Set blade
or tine depth so that the blades or tines
just touch on a flat surface such as a
sidewalk or driveway.
• Delta Blades: Set blades to penetrate
the soil to a depth of 1/8" to 1/4" with a
maximum penetration of 1/2". Check your
seed bag for the manufacture’s
recommended depth of application
• Lawns with deep thatch exceeding 2 cm
may be best dethatched in two
treatments (spring and fall) to avoid
major shock to an older lawn.
Starting
IMPORTANT INFORMATION
Clear the lawn of any debris.
Clearly mark rocks and other fixed
objects.
Be especially sure to check for hidden
electrical cables or similar in the surface
of the lawn.
DT03
• Set the depth lever in working position.
• To engage the clutch in heavy thatch, bear
down on the handle and raise the front
wheels slightly. Hold the clutch engaged
against the handle and carefully lower the
machine into the turf.
• Do a small test area at a slow walking
pace.
• If the engine speed drops excessively, the
depth setting is too deep. Turn the depth
knob clockwise.
• If the machine pulls forward and bucks
roughly, the depth setting is too deep.
Check for stones or fixed objects in the
lawn. Then turn the depth knob clockwise.
• Lock the depth knob with the depth lock
after adjusting settings.
Finishing
• Remove all extracted thatch from the
grass and compost/dispose of properly.
DT06
DT05
• Other methods for improving your lawn
may include aeration and fertilization.
24
Page 25
MAINTENANCE
Maintenance schedule
The following is a list of maintenance procedures that must be performed on the machine. For
those points not described in this manual, visit an authorized service workshop.
Maintenance
Page
Check the engine oil level 34
Replace engine oil
1)
34
Check the air filter 25
Clean the air filter
Replace air filter cartridge
2)
2)
25
25
Clean sludge reservoir for fuel system 26
Check and clean the spark plug 27
Replace the spark plug 27
Check idle speed 26
Check and adjust play in valves
Clean fuel tank
4)
Check, replace fuel lines as necessary
4)
-
-
4, 5)
Check clutch and clutch cable Check flail blade lock washers Check decals and warning signs Check the seed holes for the seeder Check wear and tension on the belts 28
Check blade wear and condition 29
Check the chassis, bolts and set screws Check the seed control lever for the seeder Check the wire mountings on the seeder Lubrication; see the Lubrication schedule
Daily
maint.
before
starting
Maintenance interval months/hours
1/25
3/50
6/100
12/300
1)
First change after 20 hours.
lubricated twice weekly.
2)
In dusty conditions maintenance is required at shorter intervals.
4)
Performed by authorized service workshop.
= Described in this manual.
❍ = Not described in this manual.
WARNING!
No service operations may be performed on the engine or unit unless:
• The engine is stopped.
• The ignition cable has been removed from the spark plug.
• The machine is securely parked where it will not tip or begin rolling.
5)
Performed every second year.
3)
With daily use, the machine shall be
25
Page 26
MAINTENANCE
Replacing the air filter
If the engine seems weak, produces black
smoke or runs unevenly, the air filter may be
clogged.
For this reason, it is important to clean and
replace the air filter regularly (see the
maintenance schedule for the proper service
interval).
WARNING!
Allow the exhaust system to cool before
performing service. Risk for burns.
Cleaning/replacement of the air filter is carried
out as follows:
1. Undo the wing nut and lift off the air filter
cowling.
2. Remove the foam rubber pre-filter and
clean using a mild detergent.
Squeeze it dry with a clean cloth.
Soak it with new engine oil. Wind the filter
in an absorbent cloth and squeeze out
excess oil.
3. Remove the wing nut in the air filter and
remove the paper filter. Tap the paper filter
against a fixed surface to remove dust. If
the paper filter is still dirty or damaged, it
must be replaced.
8011-028
8011-030
IMPORTANT INFORMATION
Do not use compressed air over 2 bar/30
PSI to clean the air filter.
Do not wash the paper filter.
Do not oil the paper filter.
4. Refit the air filter as follows:
Mount the paper filter in the air filter
housing and tighten the wing nut.
5. Replace the pre-filter on the paper filter.
6. Replace the cowling over the air filter
housing.
26
8011-031
8011-032
Page 27
MAINTENANCE
Cleaning the sludge reservoir
1. Close the fuel valve.
2 Unscrew the sludge reservoir (2). Make
sure not to misplace the o-ring (1).
3. Clean the reservoir and the o-ring in e.g.
white spirit and dry carefully.
4. Put the o-ring in place in its track and
replace the sludge reservoir. Tighten it
moderately to avoid damaging the threads.
8011-036
5. Turn the fuel valve to ON and check for
leaks. If it leaks, replace the o-ring.
Idle adjustment
WARNING!
Risk for carbon monoxide poisoning.
Perform the adjustment outdoors.
1. Start the engine and run it until it reaches
normal working temperature.
2. Adjust the throttle to idle position or so that
the engine runs at the lowest possible
speed.
3. Turn the idle screw (1) so that the engine
idles at 1250–1600 RPM.
4. Increase the idle speed with the throttle
and move it right back to idle position.
Check engine speed again.
8011-047
8011-053
27
Page 28
MAINTENANCE
Ignition system
The engine is equipped with an electronic
ignition system. Only the spark plug requires
maintenance.
For recommended spark plug, see chapter
”Technical data”.
IMPORTANT INFORMATION
Fitting the wrong spark plug type can
damage the engine.
1. Remove the ignition cable shoe and clean
around the spark plug.
2. Remove the spark plug with a 13/16" (21
mm) spark plug socket wrench.
3. Check the spark plug. Replace the spark
plug if the electrodes are burned or if the
insulation is cracked or damaged. Clean
the spark plug with a steel brush if it is to
be reused.
8011-027
4. Measure the electrode gap with a gapping
tool. The gap should be 0.7–0.8 mm/
0.028–0.031". Adjust as necessary by
bending the side electrode.
5. Reinsert the spark plug, turning by hand to
avoid damaging the threads.
IMPORTANT INFORMATION
Inadequately tightened spark plugs can
cause overheating and damage the engine.
Tightening the spark plug too much can
damage the threads in the cylinder head.
5. After the spark plug is seated, tighten it
using a spark plug wrench so that the
washer is compressed. A used spark plug
should be turned 1/8–1/4 of a turn from the
seated position. A new spark plug should
be turned
1/2 a turn from the seated position.
8011-054
6. Replace the ignition cable shoe.
28
Page 29
MAINTENANCE
Cutting unit
Checking the drive belt
1. Allow the engine to cool.
2. Remove the spark plug cable.
3. Remove the belt guard (see illustration) on the
left side of the machine.
4. Check that the belt is running in the proper
track; the pulleys should guide the belt in a
straight line.
5. Check that the belt and pulleys are not oily. If
they are, first try to clean them with spirits. If
they are heavily coated, take the machine to
an authorized service workshop to fix the oil
leakage and replace the belt.
6. Check the belt for cracks, heat damage or worn
edges. If these symptoms appear, replace the
drive belt; see ”Replacing the drive belt”.
7. Check that guide and tensioning equipment for
the belt is not loose and is properly set; see
”Replacing the drive belt”.
8011-027
BELT COVER
8. Refit the belt guard.
Replacing the drive belt
Replace the drive belt as follows:
1. Allow the engine to cool.
2. Remove the spark plug cable.
3. Remove the belt guard.
4. Remove the old belt.
5. Check for wear on the pulleys and replace as
necessary.
6. Check the pulley setting against the rotor
pulley and adjust as necessary. The belt
should run in the track.
7. Check the tensioning pulley. The bearings
should rotate freely and evenly. The rocking
lever on the tensioning pulley should be free
with a lateral play of not more than 6.5 mm
(0.25") (see illustration). Replace as necessary.
8. Fit a new belt by first pulling it over the lower
pulley and then the engine pulley. Check that
the tensioning pulley and belt guides end up
outside the belt loop.
DT06
DT07
9. Adjust the belt guides as necessary and refit
the belt guard.
8011-245
29
Page 30
MAINTENANCE
Wear/Rotation/Replacing flail blades
After you have used your dethatcher for some
time, the blades will begin to wear on the
striking edge. When this happens, their
dethatching performance will diminish. A new
combing edge may be obtained by rotating the
entire rotor shaft assembly laterally (end to
end). This procedure can be repeated until the
blades reach their wear limit; see illustration.
DT22> 89mm/3.5"
8011-006
Rotate the rotor shaft as follows:
IMPORTANT INFORMATION
Only the flail blade rotor shaft can be
rotated to achieve even wear.
Rotating the rotor shaft
1. Allow the engine to cool.
2. Disconnect the spark plug.
3. Remove the belt guard (see illustration).
4. Remove the belt guard and pulley from the
rotor shaft (see illustration).
5. Remove the 6 bearing bolts and allow the
rotor shaft to slide out.
A. New blade
B. Worn blade
C. After rotation
8011-027
6. Check the shaft, bearing, blade length,
blade safety clips and spacers.
7. Rotate the shaft end for end.
8. Refit the bearing bolts.
9. Refit the pulley and check that it is aligned
with top pulley.
10. Refit the drive belt.
11. Check the pulley alignment to the engine
shaft pulley. The drive belt should run
smoothly in its track. Adjust as necessary.
Tighten the pulleys.
12. Refit the belt guard.
13. Reattach the spark plug cable.
30
BELT COVER
DT06
Page 31
MAINTENANCE
Replacing worn flail blades
1. Allow the engine to cool.
2. Disconnect the spark plug.
3. Tip the machine forward; see the section
”Two minute rule”.
IMPORTANT INFORMATION
When tipping the machine forward
observe the ”Two minute rule”.
4. Remove and dispose of the spring clips (1)
(locking washer type) that hold the blade
shaft (2) in place (see the
illustration).
5. Inspect the blade shafts and replace if bent
or worn.
6. Drive the blade shafts out towards the
center. The blades (4) and the plasitc
spacers (3) will fall off.
7. Fit the new blades and replace the plastic
spacers as necessary. Refer to the
illustration of the components for blade/
spacer placement.
8. Install new spring clips.
9. Repeat this procedure for the remaining
three shafts.
10. Reattach the spark plug cable.
8011-027
4
2
1
3
31
Page 32
MAINTENANCE
Wear/Replacing delta blades
Over time and due to wear, the blades will
diminish in length. Once the blades have worn
down by about
19 mm (3/4"), the overall length of the blade at
the longest point of the blade will be about 64
mm (2 1/2"), and it will be necessary to replace
the blades.
It is possible to replace delta blades without
removing the rotor shaft. Remove the delta
blade by removing the two screws with nuts
holding the blade in place.
Turn the new blade until it is properly aligned;
see illustration.
Screws
Delta Blade
Washers
Wear/Replacing spring tines
Over time and due to wear, the tines will
diminish in length. When the tines can no
longer be adjusted to comb 6 mm (1/4") into
the soil, the tines must be replaced.
Spring tines can be replaced without removing
Nuts
the rotor shaft by using a 1/2" socket wrench.
Remove the screw and replace the spring tine
using the wrench. Fit the new spring tine
before removing the tine on the opposite side.
Spring
Tine
32
Screw
Page 33
MAINTENANCE
Two minute rule
The machine may be tipped forward to
facilitate access for cleaning or service, but no
longer than 2 minutes.
If the machine is held in this position for too
long, the engine can be damaged by gasoline
draining into the crankcase. Should this
happen, perform an extra oil change on the
engine. Remove the spark plug and turn the
engine over a few revolutions with the starter
handle before starting the engine again.
Cleaning and washing
Regular cleaning and washing will increase the
machine’s lifespan. Make it a habit to clean the
machine directly after use, before the dirt
sticks.
8011-248
Check before rinsing that the fuel tank lid is
properly in place to avoid getting water in the
tank.
Use caution when using high-pressure spray
because warning decals, instruction signs and
the engine can be damaged. Do not exceed
70 bar/1000 PSI water pressure when
cleaning.
Lubricate the machine after cleaning. This is
particularly important if the machine is to be
stored.
8011-121
33
Page 34
Lubrication schedule
LUBRICATION
DT22
General
Stop the engine and remove the ignition cable before attempting to lubricate the machine.
Unless otherwise specified, when lubricating with grease use Husqvarna’s Universal Grease no.
5310038-01 or Husqvarna’s Lubrication Grease UL 21 no. 5310060-74.
Wipe away excessive grease after lubrication.
It is important to avoid getting lubricant on the belt or the drive surfaces on the belt pulleys. Should
this happen, attempt to clean them with spirits. If the belt continues to slip after cleaning, it must
be replaced.
34
8011-281
Page 35
LUBRICATION
1. Engine oil
The engine should be warm (but not hot) when
changing the oil. Warm oil flows out faster and
leaves a smaller quantity of old oil inside the
engine.
1. Place a suitable vessel underneath the oil
drainage screw. Remove the oil dipstick (1)
and the oil drainage screw (4).
Tip: Make a channel using a piece of cardboard
to lead the oil directly into the vessel and avoid
soiling the machine chassis.
2. Allow the engine oil to drain into the vessel;
then replace the drainage screw. Tighten it
moderately.
IMPORTANT INFORMATION
Used engine oil is a health hazard and
legislation prohibits disposal on the ground
or in nature; it should always be disposed
of at a workshop or appropriate disposal
location. Avoid skin contact; wash with soap
and water in case of spills.
4. Check that the rubber gasket is in position
and screw the dipstick back into place. Do
not tighten it askew or too hard or you may
damage the threads.
WARNING!
Engine oil can be very hot if it is drained
directly after stopping the machine.
Allow the engine to cool somewhat.
3. Make sure the machine is parked on even
ground. Fill the new oil using the appropriate
viscosity according to the diagram, API
Service SF-SG, to the upper level mark on the
dipstick = threads on the oil dipstick. The
engine takes 0.6 liters/0.63 US qt of oil. When
checking the oil level, the dipstick should not
be screwed in.
4. Check that the rubber gasket is in position and
screw the dipstick back into place. Do not
tighten it askew or too hard or you may
damage the threads.
5. Wipe up any spilled oil.
Checking the engine’s oil level.
Make sure that the machine is parked on even
ground with the engine stopped when checking
the oil level.
1. Unscrew the dipstick and wipe it using paper
towel or a lint-free rag.
8011-045
8011-046
2. Replace the dipstick without screwing it in.
Remove and check the level on the dipstick.
3. Fill oil as necessary to the lip of the dipstick
hole. Oil type, see above.
8011-020
35
Page 36
LUBRICATION
2. Depth knob with depth lock
Lubricate the threads regularly with grease to
avoid binding or locking. It is particularly
important to lubricate the threads after
cleaning.
3. Blades
Cover the blades with a thin coat of oil to avoid
rust. This is particularly important prior to
winter storage or if the machine will not be
used for a period of longer than 30 days.
DT03
4. Depth lever
It is important to lubricate all links and joints so
that they do not bind. Use 30W engine oil.
5. Handle
Lubricate the joints at both sides of the handle
with an oil can.
DT05
36
DT06
Page 37
TROUBLESHOOTING
Symptom Cause Action
The engine will not start
• User error Fuel valve closed. Open the fuel valve.
Choke valve open. Close the choke with cold
engine.
Engine switch in OFF position. Turn the engine switch to ON.
• Fuel system Fuel tank empty. Fill with fuel.
Machine stored without Clean tank, sludge reservoir and
observing proper procedure empty carburetor.
from chapter ”Storage/Winter Fill the tank with fresh fuel.
storage”
Contamination, water or ice in Clean tank, sludge reservoir,
fuel system. fuel lines and carburetor. Fill
the tank with fresh fuel.
Carburetor problems. Contact an authorized service
workshop.
• Spark plug Wrong spark plug type. Replace the spark plug.
Build-up on electrodes. Check electrode gap and clean or
Short circuit. replace spark plug.
Gasoline or oil on the spark plug. Clean the spark plug. Air the
engine out. Start with full throttle.
• No spark after Faulty engine switch, cable Contact an authorized service
checking spark plug or ignition. workshop.
• Low compression Serious interior engine Contact an authorized service
damage or faulty valves. workshop.
Engine is under powered or runs unevenly
• Air filter Clogged air filter. Clean or replace the air filter.
• Fuel system Machine stored without observ- Clean tank, sludge reservoir and
ing proper procedure from empty carburetor.
chapter ”Storage/Winter storage” Fill the tank with fresh fuel.
(Blue exhaust) Tank filled with 2-cycle mixed oil. Fill the tank with proper fuel.
(Voluminous blue-white Tank filled with diesel. Clean tank, sludge reservoir
exhaust) and empty carburetor.
Fill the tank with proper fuel.
(Black exhaust) Choke left on. Open choke valve.
Clogged air filter. Clean or replace the air filter.
Carburetor problems. Contact an authorized service
workshop.
• Ignition system Wrong spark plug type. Replace the spark plug.
Build-up on electrodes. Check electrode gap and clean or
Short circuit. replace spark plug.
Faulty ignition unit. Contact an authorized service
workshop.
• Low compression Serious interior engine damage Contact an authorized service
(possible blue or faulty valve. workshop.
exhaust)
37
Page 38
STORAGE
Winter storage
At the end of the season, the machine should
be readied for storage (or if it will not be in use
for longer than 30 days). Fuel allowed to stand
for long periods of time (30 days or more) can
leave sticky residues that can plug the
carburetor and disrupt engine function.
Fuel stabilizers are an acceptable option to
reducing sticky residues during storage. If
alkylate gasoline (Aspen) is used, stabilizers
are unnecessary because this fuel is stable.
However, you should avoid switching between
regular and alkylate gasoline as sensitive
rubber components can harden. Add stabilizer
to the fuel in the tank or in the storage
container. Always use the mixing ratios
specified by the manufacturer of the stabilizer.
Run the engine for at least 10 minutes after
adding the stabilizer so that it reaches the
carburetor. Do not empty the fuel tank and the
carburetor if you have added stabilizer.
To ready the machine for storage, follow these
steps:
1. Clean the machine carefully, particularly the
chassis and working equipment. Mend damage
to the paint to prevent rust.
2. Inspect the machine for worn or damaged parts
and tighten any nuts or bolts that may have
become loose.
3. Change the engine oil; dispose of properly.
4. Open the fuel valve. Empty the fuel tank (1) and
the carburetor (2).
WARNING!
Never store an engine with fuel in the
tank indoors or in poorly ventilated
spaces where fuel vapor can come in
contact with open flame, sparks or a
pilot light such as in a boiler, hot water
tank, clothing drier, etc.
Handle the fuel with caution. It is very
flammable and careless use can cause
serious damage to person and
property. Drain the fuel into an
approved container outdoors and far
away from open flame. Never use
gasoline for cleaning. Use a degreaser
and warm water instead.
Service
When ordering spare parts, please specify the
purchase year, model, type, and serial number.
Always use genuine Husqvarna spare parts.
An annual check-up at an authorized service
workshop is a good way to ensure that your
machine performs its best the following season.
8011-048
5. Close the fuel valve.
6. Remove the spark plug and pour about a
tablespoon of engine oil in the cylinder. Turn
over the engine so that the oil is evenly
distributed and then refit the spark plug.
Put the engine in the compression phase where
the triangle mark on the sleeve of the starter is
aligned with the upper hole in the starter.
Note: Compression phase occurs every second
revolution.
8011-049
7. Lubricate all grease nipples, joints and shafts
as described in the chapter ”Lubrication/
Lubrication schedule”.
8. Store the machine in a clean, dry place and
cover it for extra protection.
38
Page 39
TECHNICAL DATA
Specifications DT22
Engine Honda GX160
Cylinder volume 163 cm
Power 5.5 hp (4 kW) at 3600 RPM
Torque 10.8 Nm at 2500 RPM
Spark plug NGK BPR6ES
DENSO W20EPR-U
Fuel volume 3.6 liters/0.95 US Gal
Primary drive One V-belt
Dethatching breadth 55.8 cm (22")
Clutch control Handle-mounted with
automatic safety declutching
Clutch Belt tightener with spring return and idling pulley
mechanism
Seeding breadth 55.8 cm (22")
Depth setting Adjustable depth control with lever mechanism with lock and stop
3
(9.9 cu in)
Flail blade reel 52 case-hardened steel blades with 1.6 cm (5/8") spacers
0.3 x 2.5 x 8.9 cm (1/8" x 1" x 3 1/2")
Delta blade reel 20 austempered 12-gauge steel blades
with 5 cm (2") spacers
Spring tine reel Not applicable
Handle Fixed, ergonomic design with upholstery
Catcher bag 0.23 m3 (8 ft3) synthetic material on frame with wheels
Seed hopper 22.3 l (1.358 inch3) or approx. 13.6 kg
(30 lbs) seed. Self-propelled stirring. Inspection window.
Weight Dethatcher 65.3 kg (144 lbs)
with seed hopper 74.8 kg (165 lbs)
with catcher bag 71.2 kg (157 lbs)
Width 71 cm (28")
Length 68 cm (26 3/4") without handle
127 cm (50") with handle
Height 61 cm (24") without handle
102 cm (40") with handle
Distance between axles 45 cm (17 3/4") center to center
Bearings 3/4" closed flanged cartridge
Wheels Front 8" x 1 3/4"
Back 10" x 2 3/4" catcher bag
Back 10" x 1 3/4" seed hopper
39
Page 40
ASSEMBLY INSTRUCTIONS
Assembly – delivery service
1. Rotate the handle and tighten it in place.
2. Fill the engine with the manufacturer-recommended oil. See section ”Lubrication/Engine oil”.
3. Test the clutch. Make sure that the clutch expansion spring disengages easily.
4. The engine RPM is preset by the manufacturer. Idle speed is 1250–1400 RPM. Maximum engine
speed is 3600 RPM.
See the engine manual for instructions on adjusting the regulator and carburetor if the engine speed
is not within these limits.
1
3
4
2
DT03
40
1. Handle
2. Oil refill engine
3. Clutch cable
4. Clutch bail
Page 41
BAGGER ASSEMBLY
Assembly directions, catcher bag
(Part No. 539106667)
WARNING!
DO NOT use or start the engine until the
catcher bag is in place.
WARNING!
Machines equipped with a catcher MUST
not be used with defective catcher bags or
without the catcher bag.
They pose a risk of thrown stones, eye injury and inhalation of pollution.
WARNING!
DO NOT attempt to unblock bagger chute
while engine is running. Stop engine before removing grass and debris.
7. Remove rear axle from unit. The wheel that is
pinned to the axle can remain on the axle.
NOTE: If axle is rusty, remove rust with fine sandpaper.
NOTE:Rubber flapper does not have to be removed.
8. Remove bearings from the frame, retain hard-
ware.
9. Install tray matching screw holes in main frame.
See Figure 1.
ATTACH TRAY
TO FRAME
BEARING
TRAY
DT09
1. Remove rear cover, it is not used with the
bagger attachment.
2. Disconnect cable on handle, remove clutch bail
from handle.
3. Remove handle from unit saving hardware.
4. Place a stable support under the rear frame to
support the unit when the rear wheels are removed.
5. Remove the two (2) retaining rings on the rear
wheel (they are not reusable, new rings are
provided in the kit). Remove wheel from rear
axle. (Some units have cotter pins instead of
retaining rings.)
6. Loosen one (1) set screw on the locking collar. Using a punch loosen the locking collar
on the rear axle. Repeat on the other side of
unit.
FIGURE 1
10. Apply bearings on the inside of the tray, DO
NOT tighten hardware, just snug it. See Figure 1.
LOCKING
COLLAR
DT10
FIGURE 2
11. Add locking collar to shaft, install shaft through
bearings and tray. Place the other locking collar on the shaft. See Figure 2. Using a punch
tighten the locking collars, then tighten the set
screw. Repeat for the other side.
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BAGGER ASSEMBLY
12. Slide wheel on and apply two (2) retaining
rings. (Some units use a cotter pin instead.)
NOTE: The teeth on the retaining rings should point
away from the wheel.
13. Tighten wheel bearing hardware on both sides.
NOTE: If you have not installed the flail reel shaft,
do so now.
14. Install rubber flaps between flail blades on the
rake shaft. See Figure 3. If this shaft is installed,
you DO NOT have to remove the shaft from
the unit to install the the rubber flaps.
PULLEY
CABLE
DT11
FIGURE 4
RUBBER FLAP
FIGURE 3
15. Remove belt guard. Remove cable by removing the pulley. See Figure 4. Attach new cable
and replace pulley. Save the old cable for use
when the bagger is not used.
16. Attach the chute to the mainframe.
CHUTE
DT12
FIGURE 5
17. Install two extenders on the outside of the lower
handle assembly. Attach the lanyards with pins
to the extenders as shown in Figure 6.
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BAGGER ASSEMBLY
EXTENDER
EXTENDER
LANYARD
PIN
DT13
FIGURE 6
18. Place door in position and set the hinge bolts.
DO NOT tighten the bolts, leave at least 1/16"
space. Thread nut on to the bolt. See Figure
SPRING
LOWER HANDLE
UPPER BOLT
DT15
FIGURE 8
20. Attach upper handle to the extenders.
21. Attach upper end of cable to the handle and
install cable through clutch bail. Fit clutch
bail into the handle. See Figure 9.
BOLT
NUT
DT14
FIGURE 7
19. Remove upper bolt from lower handle and
rotate handle toward the ground. Using the
hardware provided install the spring to the
extender. Rotate handle back to original
position stretching spring, re-install the 3/8"
bolt into the lower handle. Repeat on other
side. See Figure 8.
DT16
FIGURE 9
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BAGGER ASSEMBLY
22. Wire tie the cable to the handle. See Figure10.
DT17
FIGURE 10
23. Check adjustment of clutch cable. If cable
needs adjusting, the adjusting should be
done at the lower end with the spring.
Adjust as follows:
Pull the clutch bail tightly against the handle.
The spring stretch should be 3/8" - 1/2".
If this range is not met, the adjustment should be
done closest to the spring.
24. Replace belt cover.
25. Fit catcher bag to the bag frame as follows:
• Affix the bag’s plastic rails to the frame.
• Install the upper portion of the bag be-
tween the two struts on the upper portion
of the frame and affix the bag to the front
edge of the frame.
• Press on the snaps, one on each side.
See Figure 11.
8011-283
FIGURE 11
26. Attach bag to unit.
8011-284
WARNING!
DO NOT use or start the engine until the
catcher bag is in place.
WARNING!
Machines equipped with a catcher MUST
not be used with defective catcher bags or
without the catcher bag in place.
They pose a risk of thrown stones, eye injury and inhalation of dust.
44
DT18
FIGURE 12
Page 45
BAGGER ASSEMBLY
Instructions for the catcher bag
WARNING!
Machines equipped with a catcher MUST
not be used with defective catcher bags or
without the catcher bag.
They pose a risk of thrown stones, eye injury and inhalation of pollution.
Catcher bag
Insert the catcher bag into the underside of the
handle and open the safety door place bag on the
catcher chute.
DT02
See ”Assembly instructions\Assembly directions,
collector bag”.
Correct height setting
The thatch collected will be thrown into the catcher
by the force arising from the flail blades combing
through the grass. The blades may not strike the
soil. If the blades come in contact with the soil, they
will claw, which results in ineffective dethatching.
Collection conditions
One achieves best results if the lawn is short and
dry. Wet lawns make collection less effective. If the
grass is long, one may end up pulling and tearing
at the lawn. If the layer of thatch is thick, Husqvarna
recommends going over the lawn first in one
direction and then again in a perpendicular direction.
A thick layer of thatch may have formed over several
years, and the lawn may need combing 2-3 times
before it is removed completely. Do not attempt to
remedy a major problem by combing the lawn just
once.
FIGURE 13
DEPTH LEVER
DT03
FIGURE 14
Maintenance
Check prior to use that the catcher is properly
assembled and that the bag is not damaged. See
”Assembly instructions\Assembly directions,
collector bag”.
Clean the equipment after use.
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SEEDER ASSEMBLY
WARNING!
DO NOT use or start the engine until the
seeder is in place.
1. Remove rear cover, it is not used with the
seeder attachment.
2. Place a stable support under the rear frame to
support the unit when the rear wheels are removed.
3. Remove the two (2) retaining rings on the rear
wheel (they are not reusable, new rings are
provided in the kit). Remove wheel from rear
axle. (Some units use a cotter pin instead of
retaining rings.)
4. Loosen one (1) set screw on the locking collar.
Using a punch loosen the locking collar on the
rear axle. Repeat on the on the other side of
the unit.
DT19
FIGURE 1
9. Place seed box on unit, replace bearing with
eccentric collar to the outside. The screws that
attach the seedbox to the frame MUST have
washers inside the seedbox on the screws. DO
NOT overtighten and deform the plastic, snug-up
ONLY. See Figure 2.
5. Remove bolts holding the bearings to the frame.
6. Remove rear axle from unit. The wheel that is
pinned to the axle can remain on the axle.
7. Remove push nut (push nut is not reusable, a
new one is provided in the kit) from the right
side of the rubber flap rod. Lay the rubber flap
away from the right side so the cable can run
between the flap and frame. (Some units use
cotter pins to hold the flap rod.)
8. Route the cable from the seed gate between
the bottom of the frame and the top of the rubber flap. See Figure 1.
46
DT20
FIGURE 2
NOTE: Do not tighten hardware on the bearings until
the axle is installed.
Page 47
SEEDER ASSEMBLY
10. Re-attach rubber flap rod with push nut to
the frame being sure cable is routed above flap
rod. See Figure 3. (Some units us cotter pins).
DT23
FIGURE 5
DT21
FIGURE 3
11. Using two (2) wire ties attach cable to the frame.
See Figure 4.
DT22
FIGURE 4
15. Center agitators in seed box and tighten bearing locking collars. Use punch to tighten the
collar then tighten the set screw. Repeat for
the other side.
16. Slide wheel on and apply two (2) retaining
rings. (Some units use cotter pins instead of
retaining rings.)
NOTE: The teeth on the retaining rings should point
away from the wheel.
17. Tighten the bearing bolts.
18. Attach the control cable to the inside of the
upper handle in the holes provided.
19. Apply ON/OFF decal to the handle. See Figure 6.
CONTROL LEVER
SEED DIAL
12. Place agitators in the seed box with screw
holes toward the center.
13. Make sure locking collar is on the axle then
thread the axle though the side of the box and
through the agitators in seed box.
14. Rotate axle to line up the holes with the agitators holes. Using the self-tapping screws attach the agitators to the rear axle. See Figure 5.
OPEN
CLOSED
DT24
FIGURE 6
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SEEDER ASSEMBLY
20. Attach the cable with a wire tie farther up the
handle.
21. Check adjustment of the cable by tipping unit
forward confirming that when the control lever is in the closed position the seedgate is
fully closed.
If the seedgate needs adjusting, loosen the
screw and nut holding the cable clamp. Move
the cable back or forward in the clamp until
the seedgate is fully closed when the control
lever is in the closed postion. DO NOT move
the seedgate with your hand, use the cable to
move the seedgate for a more accurate adjustment.
22. To check the seed dial adjustment , insert a 1/8"
drill bit into one of the holes in the seed gate, the
seed dial should read 3 1/2. If not, adjust the
cable by loosening the screw and nut holding the
cable clamp. Move the cable back or forward in
the clamp until the seed dial reads 3 1/2.
CABLE CLAMPSEED GATE
DT25
FIGURE 7
23. Make sure the cable moves freely. NEVER
kink the cable.
24. Re-check the unit to see if it functions properly.
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SEEDER ASSEMBLY
Instructions for the seeder
IMPORTANT INFORMATION
The equipment is only intended to sow
grass seeds on lawns. All other use such
as spreading lime or manure is incorrect
and could damage the equipment.
General information
The seed hopper is mounted on the rear of the
machine. The seeds are released with a lateral
space of approximately 3.8 cm ( 1 1/2") after the
blades have cut the soil.
Delta blades are recommended for seeding.
For more uniformed coverage, we recommend first
sowing in one direction and then sowing at
approximately 45° from the first sowing pass. With
this method, the seed flow should be set at half of
the recommended quantity for approximately 93 m
(1000 ft2).
The seeder does not remove the thatch layer. The
thatch should be removed before beginning the
seeding process. The seeds must be covered with
soil to germinate.
Adjusting the seed hopper
A seed application chart is located on the back of
the seed hopper. The seed dial is also located on
the handle bar of the unit. Set the seed flow by
loosening the wing nut, rotating the dial to the correct
setting and tightening the wing nut. The seed control
lever is located on the handle of the seeder.
DT22RF
2
8011-119
When the seed control lever is in the open position,
the dial controls the degree that the seed gate will
be opened. The flow of seed can be stopped with
the seed control lever when turning and refilling
seeds.
Maintenance
Make sure before use that the release holes for the
seeds are not plugged with soil or similar.
Clean the equipment carefully after use.
Lubricate after cleaning to prevent corrosion.
Lubricate joints and bearings and unpainted metal
surfaces.
WARNING!
Be careful of the muffler when opening the
seed hopper lid as it can be very hot and
cause burns.
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SERVICE JOURNAL
Action
Delivery service
1. Break the packaging and make sure the machine has not been
damaged in transport.
2. Where applicable, assembly accompanying components.
3. Check that the machine design corresponds to the
customer order.
4. Check that the right amount of oil is in the engine and
transmission.
5. Check that the working equipment is properly set.
6. Check that the drive pulleys are aligned.
7. Check that belts are properly adjusted.
8. Lubricate the machine as described in the lubrication schedule.
9. Fill the fuel tank and start the engine.
10. Check all operating instruments.
11. Check decals and information attached to the unit.
12. Check the engine speed (RPM), see Technical Data.
13. Check for leakage.
Date, stamp, signature
14. Inform the customer about:
The need and advantages of following the service schedule.
The need and advantages of leaving the machine for service every
300 hours.
The effects of service and maintaining a service journal on the
machine’s resale value.
15. Fill in the sales papers, etc.
After the first 20 hours
1. Change engine oil.
2. Check that belts are properly adjusted.
Delivery service has been carried
out.
No remaining notes.
Certified:
3. Tighten screws and nuts.
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Sound - Model 968999132
LWA
102
Sound Test
Sound test conducted was in accordance with
2000/14/EC and was performed on 07 October 2002
under the conditions listed.
General Condidtion:
Temperature:
Wind Speed:
Test Report:
Less than 8 mph
Clear
66 ° F.
R092502-01
Vibration - Model 968999132
Vibraton Level
11.5
rms
Vibration level at the operators handles were
measured in the vertical, lateral, and longitudinal
directions using calibrated vibration test equipment.
Tests were performed on 07 October 2002 under
the conditions listed:
General Condidtion:
Temperature:
Wind Speed:
Test Report:
Less than 8 mph
R092502-01
Clear
66 ° F.
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´®z+H3J¶6T¨
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114 01 94-26
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2003W10
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