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14

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

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

DT03

Summary of Contents for DT22

Page 1: ...Operator s manual DT22 Please read these instructions carefully and make sure you understand them before using the machine English ...

Page 2: ... engine 21 Cutting the engine 22 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 stor...

Page 3: ... 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...

Page 4: ...x 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 Decals and machine bound instructions 1 Husqvarna logo 2 Model designation DT22 3 Caution list 4 Height setting 5 Dial 6 DANGER Watch your feet 7 Seed application chart 8 Warni...

Page 5: ...s 1 Husqvarna logo 2 Model designation DT22 3 Caution list 4 Height adjust 5 Seed Dial 10 Transport Engaged 6 DANGER Watch your feet 7 Seed application chart 8 Warning for carbon monoxide 9 Open Close 1 2 3 4 5 6 7 8 9 6 10 DT22RF DT02 DT03 ...

Page 6: ...e 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 Translation of instructions Decal 7 Seed application chart Values are approximate quantities of seed de...

Page 7: ...uctions 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 Read this manual carefully and make sure you understand it before using the machine or...

Page 8: ... 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...

Page 9: ...r intentionally run the machine over foreign objects 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 runnin...

Page 10: ...ction 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 alw...

Page 11: ...ngine 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 ...

Page 12: ... result in personal injury or fire 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 Fueling always poses an element of risk Check the fuel level before each use and leave space...

Page 13: ...ntee 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 def...

Page 14: ...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 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 I...

Page 15: ...15 PRESENTATION Main components and operating instruments 1 Engine 2 Depth knob with depth lock 3 Depth lever 4 Knob for collapsible handle 5 Clutch bail 6 Handle DT04 1 2 3 4 5 6 4 ...

Page 16: ... 14 Engine switch 15 Fuel tank 16 Fuel filler cap 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 8011 043 8011 03...

Page 17: ...tor 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 This also results in increased fuel consumption Air fil...

Page 18: ...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 se...

Page 19: ...se 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...

Page 20: ...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 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 Sec...

Page 21: ...ting 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 ...

Page 22: ...he illustration When starting the engine cold or partially warm turn the lever completely or partly to the left 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 f...

Page 23: ...et go of the starter handle when extended 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 Throttle control Adjust the engine speed with the throttle Moving the lever to the lef...

Page 24: ... 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 Other methods for improving your lawn may include aeration and fertilization DT03 DT06 DT05 Starting Set the depth lever in ...

Page 25: ...n the seeder Lubrication see the Lubrication schedule MAINTENANCE 3 50 6 100 Page 1 25 Maintenance Daily maint before starting Maintenance interval months hours 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 Described in th...

Page 26: ...ter in an absorbent cloth and squeeze out excess oil MAINTENANCE 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 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 th...

Page 27: ...he throttle and move it right back to idle position Check engine speed again WARNING Risk for carbon monoxide poisoning Perform the adjustment outdoors MAINTENANCE 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 modera...

Page 28: ... with a steel brush if it is to be reused 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 ...

Page 29: ...s not loose and is properly set see Replacing the drive belt 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 i...

Page 30: ... pulley from the rotor shaft see illustration 5 Remove the 6 bearing bolts and allow the rotor shaft to slide out 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...

Page 31: ...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 IMPORT...

Page 32: ...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 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 It is possible to replace delta blades without removing the rotor shaft Remove the d...

Page 33: ...ter 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 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 th...

Page 34: ... 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 DT22 8011 281 ...

Page 35: ...ine stopped when checking the oil level 1 Unscrew the dipstick and wipe it using paper towel or a lint free rag 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 WARNING Engine oil can be very hot if it is drained directly after stopping the machine Allow the engine to cool somewhat 80...

Page 36: ...longer than 30 days 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 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 DT03 DT05 DT06 ...

Page 37: ...ice 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 F...

Page 38: ...t empty the fuel tank and the carburetor if you have added stabilizer 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 pr...

Page 39: ...ers 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 s...

Page 40: ...acturer 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 2 3 4 DT03 ...

Page 41: ...retaining rings 6 Loosen one 1 set screw on the locking col lar Using a punch loosen the locking collar on the rear axle Repeat on the other side of unit 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 FIGURE 1 10 Apply bearings on the inside of the tray DO NOT tighten hardware just snu...

Page 42: ...re 6 RUBBERFLAP FIGURE 3 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 15 Remove belt guard Remove cable by remov ing the pulley See Figure 4 Attach new cable and replace pulley S...

Page 43: ... 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 NUT BOLT 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 FIGUR...

Page 44: ...NG 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 in jury and inhalation of dust 26 Attach bag to unit FIGURE 12 24 Replace belt cover 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 bai...

Page 45: ...ve 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 la...

Page 46: ...gs 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 gat...

Page 47: ...he inside of the upper handle in the holes provided 19 Apply ON OFF decal to the handle See Figure 6 FIGURE 6 SEED DIAL OPEN CLOSED CONTROL LEVER 11 Using two 2 wire ties attach cable to the frame See Figure 4 FIGURE 4 FIGURE 3 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 13 Make sure locking collar is on t...

Page 48: ...ol 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 ad justment 20 Attach the cable with a wire tie farther up the handle 24 Re check the unit to see if it functions properly FIGURE 7 CABLE CLAMP SEEDGATE SEEDER ASSEMBLY DT25 22 To check the seed dial adjustment insert a 1 8 drill bit into one of the holes in the seed gat...

Page 49: ...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 When th...

Page 50: ... 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 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...

Page 51: ... Report Vibration Model 968999132 Vibraton Level 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 102 Clear 66 F Less than 8 mph R092502 01 11 5 rms Clear 66 F Less than 8 mph R0...

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