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Husqvarna SC18A, Operator'S Manual

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Husqvarna SC18A Operator'S Manual Download Page 43

TROUBLE SHOOTING GUIDE

English-

41

Problem

Answer/comment

Transmission shaft broke.

•

Ensure debris is not caught in the Transmission Chain or 

wrapped around the transmission output shaft.

•

Ensure the unit has a Skid Pan installed.

•

Contact your servicing dealer.

Drive wheels won’t engage.

•

Ensure the Drive Chain is on all sprockets.

•

Ensure the Transmission Chain is on all sprockets.

•

Ensure the Chain Idler Spring is attached.

•

Verify the Shift Linkage is attached at the Shift Lever 

and at the Bell Crank and Rod End is attached at Bell 

Crank and Transmission Arm.

•

Check sprockets for proper alignment.

Unit jumps out of gear.

•

Adjust Shift linkage. Tighten Shift Lever Pivot Bolt to hold
shift lever in place.

Bushing on depth control assembly are 

•

The bushings are wearable items.

wearing quickly

•

Be sure the maximum PRPM is set correctly at 3000.

See Technical Bulletin Throttle Cable Adjustment.

Right Angle T-drive leaking.

•

Contact your local Tecumseh dealer or servicing dealer.

What RPM should my engine be set to?

•

3000RPM maximum.

Chain (Drive) is coming off, 

The Transmission Output Sprocket is fixed (non 

drive sprocket wearing.

adjustable) sprocket which is splined and snap-ringed in 
place.

•

Replace the Tensioner Sprocket if it has a bent or

twisted bracket or bent teeth.

•

Check chain tension between Axle Sprockets

(1/4” - 3/8” deflection at mid-span).

Pulleys not staying tight or coming off.

•

Inspect shaft, pulleys and keys for damage.

•

Replace any damaged parts.

WARNING: Before servicing unit, engine MUST be off.

Summary of Contents for SC18A

Page 1: ...English SC18A Operator s manual Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Page 2: ......

Page 3: ... 18 Operation 27 Starting the Engine 27 Operating on hills 29 Transport 29 Maintenance 30 Maintenance Schedule 30 Replacing the Air Filter 31 Cleaning the Sludge Reservoir 32 Ignition System 33 Adjusting the Drive Belt 34 Blade Wear 34 Blade Replacement 35 Chain Tension Adjust 35 Chain Replacement 35 Two Minute Rule 36 Cleaning Washing 36 Lubrication 37 Lubrication Schedule 37 Lubricating the Chai...

Page 4: ...o the operator or other persons The owner must understand these instructions and must allow only trained persons who understand these instructions to operate the mower Each person operating the mower must be of sound mind and body and must not be under the influence of any mind altering substance ...

Page 5: ...rection Continuous dedication to improve our products require that specifications and design are subject to change without notice Driving and Transport on Public Roads Check applicable road traffic regulations before transporting on public roads If the machine is transported you must always use approved fastening equipment and ensure that the machine is well anchored DO NOT operate this machine on...

Page 6: ...e following professional Serial Number The serial number can be found on the printed plate attached to the frame on the back panel under the shifter bracket 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 stamped in the crankc...

Page 7: ... 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 WARNING Xxxxxxx xxxx xxxxxxxx xxx x Xxxxx xxxxxx xx xx xxxxxxxx xxxxx xxx xx IMPORTANT INFORMATION Xxxxxxx xxxx xxxxxxxx xxx xxx xxxx xxxxxx xx CE conformity marking Only for European market...

Page 8: ...eans that important safety instructions need to be emphasized It concerns your safety IMPORTANT INFORMATION Do not use the machine until you have read the operator s manual carefully and understand and follow the instructions given Failure to follow these safety instructions could result in serious injury or death All maintenance work or adjustments not described in this manual must be performed b...

Page 9: ... and focus on the task at hand Never leave the machine unsupervised with the engine running The machine is tested and approved only with the equipment originally provided or recommended by the manufacturer 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 le...

Page 10: ...r 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 Check that the throttle grip and all guards are fitted and functioning DO NOT use the machine if it is not working properly Makes sure no clothing long hair or jewelry can cat...

Page 11: ...ear protectors to avoid damage to hearing 1 2 3 4 5 8011 670 Use appropriate equipment WARNING Always use approved personal protective equipment as shown in illustration 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 de...

Page 12: ... can result in personal injury or fire Never refuel the machine in a building or enclosed trailer Never use a machine with a defective muffler This machine was designed for sod cutting only It is not intended for any other use After striking a foreign object stop the engine motor remove the wire from the spark plug thoroughly inspect the machine for any damage and repair the damage before restarti...

Page 13: ...you last saw them Keep children in the watchful care of a responsible adult other than the operator Do not overload the machine capacity by attempting to cut too deep at too fast a rate Never operate the machine at high transport speeds on hard or slippery surfaces Use only attachments and accessories approved by the manufacturer of the machine such as wheel weight counterweights and the like Neve...

Page 14: ... and space heaters clothes dryers and the like Allow the engine to cool before storing in any enclosure Store the machine with the fuel valve closed Store the machine in a locked space away from children and adults untrained in use of the machine Always refer to the operatorís manual for important details if the sod cutter is to be stored for an extended period Children Serious accidents can occur...

Page 15: ...tainers inside a vehicle or on a truck or trailer bed with plastic liner Always place containers on the ground away from your vehicle when filling Remove gas powered equipment from the truck or tailer and refuel it on the ground If this is not possible then refuel such equipment with a portable container rather than from a gasoline dispenser nozzle Keep the nozzle in contact with the rim of the fu...

Page 16: ...when servicing them 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 engine warranty Contact your dealer if you have any questions regarding service or warranty matters Follow all maintenance instructions Do not change t...

Page 17: ...ovided or recommended by the manufacturer Only use approved repair parts for the machine Regularly clean machine and underside avoid spraying engine and electrical components with water Customer responsibilities Read and observe the safety rules Follow a regular schedule in maintaining caring for and using your mower Follow the instructions under Maintenance and Storage sections ofthis owner s man...

Page 18: ...oad assortment of equipment for professionals such as forestry workers and knowledge about occupational environment requirements and protective levels We recommend the following personal protective equipment 1 Ear protection 2 Protective glasses 3 Protective gloves 4 First aid kit 5 Protective boots or steel toed shoes 1 2 3 4 5 8011 670 ...

Page 19: ...powered by 4 wheel drive Control Locations 1 Handle 8 Fuel Tank 2 Centrifugal clutch Dipstick 9 Air Filter 3 Shift Control Lever 10 Weight 4 Blade Engagement Lever 11 Engine on off switch 5 Throttle 12 Knob to set depth of cut 6 Engine Start Cord 13 Engine Crankcase 7 Engine 4 1 2 3 5 6 7 8 9 10 11 12 13 ...

Page 20: ...pstick 10 Oil drain plug 11 Oil level guard 12 Engine switch 13 Fuel tank 14 Fuel filler cap Throttle The lever on the engine is normally not used It is connected to the throttle on the handle If the cable should bind or break you can reduce the throttle with the lever on the engine as an emergency measure to slow the engine speed 1 2 3 4 5 6 7 8 10 9 12 13 14 11 1 8011 034 1 Throttle Control ...

Page 21: ...he choke valve in the carburetor This is only used to start a cold engine The image shows the choke valve open to close move the lever to the left The midway positions can be used When the engine starts the lever can be moved 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 increa...

Page 22: ...il reservoir is located on the left side 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 level ground with the engine stopped Never run the engine without the dipstick in place The engine stops and cannot be started if the level becomes too low For normal use we recommend SAE 1...

Page 23: ... completely leave space for the fuel to expand as it warms up Centrifugal clutch The engine is equipped with a centrifugal clutch that is connected to the crankshaft When the engine speed increases the drive for the cutting blade engages automatically The centrifugal clutch needs oil added upon delivery 10 w30 53 qt or 5 liter There are no user servicable parts except oil level To drain oil from t...

Page 24: ... determine if you need to water before cutting Use a garden hand spade weed tool or even a large screwdriver to test the groundís hardness You should be able to push the tool into the ground 2 to 3 inches with little effort If you are unable to do so then watering may be advisable Watering the day before should give sufficient time for the soil to absorb the moisture Use your hand tool to gauge th...

Page 25: ...n before starting 1 Position the sod cutter at your starting point with the blade out of the ground 2 Unscrew knob and thread into a desired hole for the correct depth of cut 3 Pull the blade engagement lever up 4 Place the shift lever in slow gear setting 1 5 Pull the throttle while maintaining a slight down pressure on the handlebar and cut a short distance then stop Put shift lever in neutral 6...

Page 26: ...ight position see the illustration When starting the engine cold or partially warm place 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 Gear Shift Lever Set the gear shift to the neutral position On off switch on the en...

Page 27: ...y and DO NOT let go of the starter handle when extended Allow starter cord to return gently while holding the starter handle Throttle Once the engine has started increase the engine speed with the throttle handle on the handle bars Normal shutdown Throttle If the engine has been running at full speed let it run easily for about 30 seconds to 1 minute at low speed Fuel valve Close the fuel valve Tu...

Page 28: ... blade engagement lever down to raise the blade Select the desired gear low gear or reverse Pull the throttle while maintaining a firm grip on the handlebar Load into truck or trailer by driving up ramps in low gear DO NOT LIFT This machine is not intended to be lifted by hand Brake To set parking brake step on lever A To release brake pull out lever B WARNING DO NOT operate on hills exceeding 25 ...

Page 29: ...ght position see the illustration When starting the engine cold or partially warm place 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 Gear Shift Lever Set the gear shift to the neutral position On off switch on the eng...

Page 30: ...y and DO NOT let go of the starter handle when extended Allow starter cord to return gently while holding the starter handle Throttle Once the engine has started increase the engine speed with the throttle handle on the handle bars Normal shutdown Throttle If the engine has been running at full speed let it run easily for about 30 seconds to 1 minute at low speed Fuel valve Close the fuel valve Tu...

Page 31: ...e blade engagement lever down to raise the blade Select the desired gear low gear or reverse Pull the throttle while maintaining a firm grip on the handlebar Load into truck or trailer by driving up ramps in low gear DO NOT LIFT This machine is not intended to be lifted by hand Brake To set parking brake step on lever A To release brake pull out lever B WARNING DO NOT operate on hills exceeding 25...

Page 32: ... lines as necessary 4 5 Check throttle and cable 3 Check blade Check decals and warning signs 3 Check wear and tension on the belt 3 Check the chassis bolts and set screws Clean oil pivot points Oil adjust chains Check belt tension Checkengine RPM 3000 RPM 1 First change after 20 hours 2 In dusty conditions maintenance is required at shorter intervals 3 Before each use 4 Performed by authorized se...

Page 33: ... or damaged it must be replaced WARNING The engine and the exhaust system become very hot during operation Risk for burns if touched Allow engine and exhaust system to cool at least two 2 minutes before replacing the air filter IMPORTANT INFORMATION Operating the engine with loose damaged air cleaner components could allow unfiltered air into the engine causing premature wear and failure IMPORTANT...

Page 34: ...e the o ring 1 3 Clean the reservoir and the o ring using a cleaning solvent 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 5 Turn the fuel valve to ON and check for leaks If it leaks replace the o ring 1 8011 186 1 Fuel valve 1 2 8011 128 ...

Page 35: ...apping tool The gap should be 0 7 0 8 mm 0 028 0 031î Adjust as necessary by bending the side electrode 5 Reinsert the spark plug turning by hand to avoid damaging the threads 6 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 tur...

Page 36: ...ide whether the blade can be repaired ground or must be replaced Blade Wear Sod cutter blades may wear quickly depending on soil condition Replace blade when worn to 1 1 2î 3 8cm or less Maintain lower blade surface Keep sides of blade sharp WARNING Prevent the engine from being started by removing the ignition cable from the spark plug WARNING Blades is sharp Protect your hands with gloves and or...

Page 37: ... 2î lock nut on the chain idler until the 40 chain flexes approximately 1 4î 6mm at mid span Install chain guard Set sod cutter back to level Chain replacement Upper Chain Remove drive belt Remove belt engagement spring and cable Remove chain tension spring Remove chain keeper on engine Remove chain Lower Chain Disconnect the master link on the old chain and hook up the new chain to the old one Pu...

Page 38: ...ter handle before starting the engine again Cleaning and washing Regular cleaning and washing will increase the machineís lifespan Make it a habit to clean the machine directly after use before the dirt sticks Check before rinsing that the fuel filler cap is properly in place to avoid getting water in the tank Do not spray water on the engine avoid using a high pressure washer or steam cleaner Lub...

Page 39: ...English 37 1 Oil and adjust chains weekly 2 Check belt tension weekly 3 Check blade especially sides weekly 4 Pivot points clean and oil monthly 5 Check engine RPM should be maximum 3000 RPM 6 Check hardware daily ...

Page 40: ...es 63 qts 6 liter 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 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 flat ground with the engine stopped when checking the oil level 1 Uns...

Page 41: ...ecessary to the lip of the dipstick hole Oil type see above 4 Check that the rubber gasket is in position and screw the dipstick back into place DO NOT tighten it too hard or you may damage the threads 2 Chains Oil and adjust chains weekly ...

Page 42: ...HEAD CAP SCREWS The torque values shown should be used as a general guidline when specific torque values are not given U S Standard Hardware Grade 5 Minimum commercial quality lower quality not recommended Metric Standard Hardware ...

Page 43: ...n Shift Lever Pivot Bolt to hold shift lever in place Bushing on depth control assembly are The bushings are wearable items wearing quickly Be sure the maximum PRPM is set correctly at 3000 See Technical Bulletin Throttle Cable Adjustment Right Angle T drive leaking Contact your local Tecumseh dealer or servicing dealer What RPM should my engine be set to 3000RPM maximum Chain Drive is coming off ...

Page 44: ...eply Make sure the blade is sharp Moisture oil or grease on the belt will cause it to slip Replace with a Husqvarna belt Tension can be increased by tightening the Cable Tension Nut Blade not disengaging New Unit or New Belt Run the machine with the blade engaged until the belt stretches Used Unit or Old Belt Be sure the correct Husqvarna belt is being used If not replace with a Husqvarna belt Ver...

Page 45: ...damaged clean or replace Belt tension can be increased by tightening the Cable Tension nut Unit is creeping The transmission contains a centrifugal clutch and may creep if left in gear Some creeping is normal because of the lubricant resistance between the clutch plates Also too heavy a lubricant in Centrifugal Clutch can cause creeping Use 10W 30 oil Put in neutral unit will not creep RPM at idle...

Page 46: ... machine carefully particularly the chassis and working equipment Touch up damage to the paint to prevent rust 2 Inspect the machine for worn or damaged parts and tighten any nuts or screws 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 5 Close the fuel valve 6 Remove the spark plug and pour about a tablespoon...

Page 47: ...ting depth max 2 5 Cutting Width 18 Length 60 Width 24 Height 36 Weight 320 lbs Vibration 8 hours 9 96 m s2 In order to implement improvements specifications and designs can be altered without prior notification Note that no legal demands can be placed based on the information contained in these instructions Use only original parts for repairs The use of other parts voids the warranty Do not modif...

Page 48: ...CONFORMITY CERTIFICATES 46 English Conformity Certificates Labels are placed on the engine and or in the engine compartment stating that the machine will fulfill the requirements ...

Page 49: ...machine and working equipment do not move in neutral 11 Check all operating instruments 12 Check decals and information attached to the unit 13 Check the engine speed RPM see Technical Data 14 Check for leakage 15 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 ...

Page 50: ...SERVICE JOURNAL 48 English Action Date mtr reading stamp sign z RP 6j z RP 6j ...

Page 51: ...SERVICE JOURNAL English 49 Action Date mtr reading stamp sign ...

Page 52: ... z RP 6j 2007 02 28 z RP 6j 1150483 26 ...

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