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19

TROUBLESHOOTING POINTS

 Will not start

 

1.  Out of fuel. 

1.  Fill fuel tank.

 

2.  Engine flooded. 

2.  Wait several minutes before attempting to start.

 

3.  Dirty air cleaner. 

3.  Clean or replace air cleaner cartridge.

 

4.  Water in fuel. 

4.  Drain fuel tank and carburetor, and refill tank with  

 

  

 fresh 

gasoline.

 

5.  Clogged fuel tank. 

5.  Remove fuel tank and clean.

 

6.  Loose spark plug wire. 

6.  Make sure spark plug wire is seated properly on  

 

  

 plug.

 

7.  Bad spark plug or improper gap. 

7.  Replace spark plug or adjust gap.

 

8.  Carburetor out of adjustment. 

8.  Make necessary adjustments.

 

9.  Oil soaked air filter. 

9.  Replace air filter.

Hard to start

 

1.  Throttle control not set properly. 

1.  Place throttle control in “FAST” position.

 

2.  Dirty air  cleaner. 

2.  Clean or replace air cleaner cartridge.

 

3.  Bad spark plug or improper gap. 

3.  Replace spark plug or adjust gap.

 

4.  Stale or dirty fuel. 

4.  Drain fuel tank and refill with fresh gasoline.

 

5.  Loose spark plug wire. 

5.  Make sure spark plug wire is seated properly on  

 

  

 plug.

 

6.  Carburetor out of adjustment. 

6.  Make necessary adjustments.

Loss of power 

1.  Engine is overloaded. 

1.  Set depth stake for shallower tilling.   

 

2.  Dirty air cleaner. 

2.  Clean or replace air cleaner cartridge.

 

3.  Low oil level/dirty oil. 

3.  Check oil level/change oil.

 

4.  Faulty spark plug. 

4.  Clean and regap or change spark plug.

 

5.  Oil in fuel. 

5.  Drain and clean fuel tank and refill, and clean    

 

  

 carburetor.

 

6.  Stale or dirty fuel. 

6.  Drain fuel tank and refill with fresh gasoline.

 

7.  Water in fuel. 

7.  Drain fuel tank and carburetor, and refill tank with  

 

  

 fresh 

gasoline.

 

8.  Clogged fuel tank. 

8.  Remove fuel tank and clean.

 

9.  Spark plug wire loose. 

9.  Connect and tighten spark plug wire.

 

10.  Dirty engine air screen. 

10.  Clean engine air screen.

 

11. Dirty/clogged 

muffler. 

11. Clean/replace 

muffler.

 

12.  Carburetor out of adjustment. 

12.  Make necessary adjustments.

 

13.  Poor compression. 

13.  Contact an authorized service center/department.

Engine overheats

 

1.  Low oil level/dirty oil. 

1.  Check oil level/change oil.

 

2.  Dirty engine air screen. 

2.  Clean engine air screen.

 

3.  Dirty engine. 

3.  Clean cylinder fins, air screen, and muffler area.

 

4.  Partially plugged muffler. 

4.  Remove and clean muffler.

 

5.  Improper carburetor adjustment. 

5.  Adjust carburetor to richer position.

Excessive bounce/

 

1.  Ground too dry and hard. 

1.  Moisten ground or wait for more favorable soil 

difficult handling

 

  

 conditions.

Soil balls up or clumps 

1.  Ground too wet. 

1.  Wait for more favorable soil conditions.

Engine runs but  tiller 

 

1.  Drive control bar is not engaged. 

1.  Engage drive control.

won’t  move 

2.  V-belt not correctly adjusted. 

2.  Inspect/adjust V-belt.

 

3.  V-belt is off pulley(s). 

3.  Inspect V-belt.

Engine runs but  labors 

1.  Tilling too deep. 

1.  Set depth stake for shallower tilling. 

when tilling 

2.  Throttle control not properly adjusted. 

2.  Check throttle control setting.

 

3.  Carburetor out of adjustment. 

3.  Make necessary adjustments.

Tines will not rotate

 

1.  Shear pin(s) broken. 

1.  Replace shear pin(s).

PROBLEM 

 CAUSE 

 CORRECTION 

Summary of Contents for 944.629663

Page 1: ...efore Operating This Equipment MODEL NO 944 629663 OWNER S MANUAL Assembly Operation Maintenance Service and Adjustments Repair Parts 900 SERIES 14 INCH TINE WIDTH REAR TINE TILLER WITH COUNTER ROTATING TINES Sears Canada Inc Toronto Ontario M5B 2B8 428620 Rev 1 ...

Page 2: ... the controls and the proper use of the equipment Know how to stop the unit and disengage the controls quickly Never allow children to operate the equipment Never allow adults to operate the equipment without proper instruction Keep the area of operation clear of all persons par ticularly small children and pets PREPARATION Thoroughly inspect the area where the equipment is to be used and remove a...

Page 3: ...H AN INTERNAL COMBUSTION ENGINE AND SHOULD NOT BE USED ON OR NEAR ANY UNIMPROVED FOREST COVERED BRUSH COVERED OR GRASS COVERED LAND UNLESS THE ENGINE S EXHAUST SYSTEM IS EQUIPPED WITH A SPARK ARRESTER MEETING APPLICABLE LOCAL OR STATE LAWS IF ANY IF A SPARK ARRESTER IS USED IT SHOULD BE MAINTAINED IN EFFECTIVE WORKING ORDER BY THE OPERATOR SEE YOUR SEARS AUTHORIZED SERVICE CENTRE DEPARTMENT FOR SP...

Page 4: ...ting position standing behind tiller handles Your new tiller has been assembled at the factory with exception of those parts left unassembled for shipping purposes To ensure safe and proper operation of your tiller all parts and hardware you assemble must be tightened securely Use the correct tools as necessary to insure proper tightness 1 Carriage Bolt 3 8 16 UNC x 1 Gr 5 1 Center Locknut 3 8 16 ...

Page 5: ...HANDLE ASSEMBLY UP POSITION FIG 4 UNPACKING CARTON See Fig 2 CAUTION Becarefulofexposedstaples when handling or disposing of carton ing material IMPORTANT WHEN UNPACKING AND ASSEMBLING TILLER BE CAREFUL NOT TO STRETCH OR KINK CABLES While holding handle assembly cut cable ties securing handle assembly to top frame Let handle assembly rest on tiller Remove top frame of carton Slowly ease handle ass...

Page 6: ...LLER FROM CRATE Adjust handle assemby to lowest position Be sure lock lever is tightened securely Makesureshiftleverindicatorisin N neutral position See Fig 7 Tilt tiller forward by lifting handle Separate cardboard cover from leveling shield Rotate tiller handle to the right and pull tiller out of carton CHECK TIRE PRESSURE The tires on your unit were overinflated at the factory for shipping purp...

Page 7: ...r Tiller or in literature supplied with the product Learn and understand their meaning CHOKE CONTROL Used when starting a cold engine DEPTH STAKE Controls depth at which tiller will dig DRIVE CONTROL BAR Used to engage tines LEVELING SHIELD Levels tilled soil RECOIL STARTER HANDLE Used to start the engine SHIFT LEVER Used to shift transmission gears SHIFT LEVER INDICATOR Shows which gear the trans...

Page 8: ...ND DIRECTLY BEHIND TILLER Release the drive control bar Move throttle control to SLOW position Move shift lever indicator to R reverse position Hold drive control bar against the handle to start tiller movement HARD TO SHIFT GEARS Brieflyengagedrivecontrolbarandreleaseorrocktiller forward and backward until are able to shift gears FIG 9 DRIVE CONTROL BAR DISENGAGED POSITION TRANSPORT POSITION DEEP...

Page 9: ...ry already filled with SAE 30 summer weight oil With engine level clean area around oil filler plug and remove plug Engineoilshouldbetopointofoverflowingwhenengine is level For approximate capacity see PRODUCT SPECIFICATIONS on page 3 of this manual All oil must meet A P I Service Classification SF SJ Reinstall engine oil cap and tighten For cold weather operation you should change oil for easier ...

Page 10: ...small plants from being buried Cultivate up and down the rows at a speed which will allow tines to uproot weeds and leave the ground in rough condition promoting no further growth of weeds and grass See Fig 15 FIG 15 FIG 13 TINE SHEAR PINS The tine assemblies on your tiller are secured to the tine shaft with shear pins See TINE REPLACEMENT in the Service and Adjustments section of this manual If t...

Page 11: ...ooperatorabuseornegligence Toreceive fullvaluefromthewarranty theoperatormustmaintaintiller as instructed in this manual Some adjustments will need to be made periodically to properly maintain your tiller All adjustments in the Service and Adjustments section of this manual should be checked at least once each season Once a year you should replace the spark plug clean or replace air filter and che...

Page 12: ... etc improve starting in cold weather these multi viscosity oils will result in increased oil consumption when used above 40 F 4 C Check your engine oil level more frequently to avoid possible engine damage from running low on oil Change the oil after every 50 hours of operation or at least once a year if the tiller is not used for 50 hours in one year Check the crankcase oil level before starting...

Page 13: ...RK PLUG Replace spark plugs at the beginning of each tilling sea son or after every 50 hours of use whichever comes first Spark plug type and gap setting are shown in PRODUCT SPECIFICATIONS on page 3 of this manual TRANSMISSION Once a season lubricate the right hand side gear case grease fitting with 1 oz of EP 1 Grease CLEANING Do not clean your tiller when the engine and transmission are hot We ...

Page 14: ...Remove L H outer and inner side shields See TO REMOVE WHEEL in this section of this manual Remove hairpin clip and clevis pin from left wheel Pull wheel out from tiller about 1 inch Remove two 2 screws from side of belt guard Remove hex nut and washer from bottom of belt guard located behind wheel Pull belt guard out and away from unit Replace belt guard by reversing above procedure FIG 22 TIRE CA...

Page 15: ...GROOVE ON TOP OF IDLER PULLEY NOTE POSITION OF BELT TO GUIDES Check belt adjustment as described below Replace belt guard Reposition wheel and replace clevis pin and hairpin clip Replace inner and outer side shields GROUND DRIVE BELT ADJUSTMENT See Fig 23 For proper belt tension the extension spring should have about 5 8 inch stretch when drive control bar is in ENGAGED position This tension can b...

Page 16: ... Fig 26 Sharpened tine edges will rotate rearward from above TINE REPLACEMENT See Figs 24 25 and 26 CAUTION Tines are sharp Wear gloves or other protection when han dling tines A badly worn tine causes your tiller to work harder and dig more shallow Most important worn tines cannot chop and shred organic matter as effectively nor bury it as deeply as good tines A tine this worn needs to be replace...

Page 17: ... the carburetor does need adjustment see engine manual High speed stop is factory adjusted Do not adjust or dam age may result IMPORTANT NEVERTAMPERWITHTHEENGINEGOVERNOR WHICH IS FACTORY SET FOR PROPER ENGINE SPEED OVERSPEEDING THE ENGINE ABOVE THE FACTORY HIGH SPEED SETTING CAN BE DANGEROUS IF YOU THINK THE ENGINE GOVERNED HIGH SPEED NEEDS ADJUSTING CONTACTYOURNEARESTAUTHORIZEDSERVICECENTER DEPAR...

Page 18: ...nual Inspect and replace belts if necessary See belt re placement instructions in the Service and Adjustments section of this manual Lubricate as shown in the Maintenance section of this manual Be sure that all nuts bolts and screws are securely fastened Inspect moving parts for damage breakage and wear Replace if necessary Touch up all rusted or chipped paint surfaces sand lightly before painting...

Page 19: ...retor 6 Stale or dirty fuel 6 Drain fuel tank and refill with fresh gasoline 7 Water in fuel 7 Drain fuel tank and carburetor and refill tank with fresh gasoline 8 Clogged fuel tank 8 Remove fuel tank and clean 9 Spark plug wire loose 9 Connect and tighten spark plug wire 10 Dirty engine air screen 10 Clean engine air screen 11 Dirty clogged muffler 11 Clean replace muffler 12 Carburetor out of ad...

Page 20: ...150696 Bolt Pivot 2 141406 Grip Handle 3 110673X Grommet Handle 4 127254X Bar Assembly Control 5 6712J Cap Vinyl 6 189347 Panel Control 7 110641X Bushing Split 9 72010520 Bolt 5 16 18 x 2 50 10 110646X Handle Grip 11 STD624003 Retainer Spring 12 81328 Bolt Shoulder 13 187497 Handle Shift 14 109313X Grommet Rubber 15 110702X Rod Shift 16 72110608 Bolt RDHD SQNK 3 8 16 x 1 Gr 5 17 109229X Lock Handl...

Page 21: ... 67 74760524 Bolt Fin Hex 5 16 18 unc x 1 1 2 67 74760528 Bolt Hex 5 16 18 x 1 3 4 68 STD541437 Nut Keps 3 8 16 unc 69 164173 Keeper Belt Engine NOTE All component dimensions given in U S inches 1 inch 25 4 mm KEY PART NO NO DESCRIPTION 3 73220600 Nut Hex 3 8 16 unc 4 432420 Shield Inner Belt Guard 5 164329 Pin Shift Lever 6 110111X Lever Shift 7 STD532505 Bolt Carriage 1 4 20 x 1 2 Gr 5 8 8700J P...

Page 22: ... 18 5 102332X Bracket Reinforcement 7 102173X Counter Weight 10 74760524 Bolt Hex 5 16 18 x 1 1 2 11 STD624003 Clip Hairpin 12 126875X Rivet Drilled 13 102190X Tire 183122X613 Rim 795R Tire Valve 15 Engine See breakdown Briggs Model 121002 0220 B8 44 STD541437 Nut Keps Hex 3 8 16 unc NOTE All component dimensions given in U S inches 1 inch 25 4 mm ...

Page 23: ...aring Shaft Ground Drive L H 28 106390X Spacer 0 765 x 1 125 x 1 23 29 102134X Chain 35 50 Pitch 30 150737 Ground Shaft Assembly 31 143008 Bearing Shaft Ground Drive R H 32 106388X Spacer 0 70 x 1 00 x 1 150 33 102121X Sprocket and Gear Assembly 34 102112X Shaft Reduction 2nd 35 102101X Screw Whiz Lock 5 16 18 x 3 1 2 36 154355 Sprocket Assembly w Bearing Includes Key Nos 37 and 38 37 4422J Bearin...

Page 24: ...18 x 1 1 4 14 124343X Bracket Shield Tine 16 73900400 Nut Hex Flange 18 STD532512 Bolt Carriage 1 4 20 x 1 1 4 Gr 5 19 102701X Grip 20 STD541037 Nut Hex 3 8 16 21 102156X Stake Depth KEY PART NO NO DESCRIPTION 22 74930632 Bolt Hex 3 8 16 x 2 23 4440J Hinge 24 72140404 Bolt Carriage 1 4 20 x 1 2 Gr 5 25 6712J Cap Vinyl 26 109227X Pad Idler 27 102686X615 Shield Leveling 28 120588X Pin Hinge 29 19776...

Page 25: ...en in U S inches 1 inch 25 4 mm 1 4459J Tine Outer L H 2 132673 Pin Shear 3 6554J Tine Inner L H 4 3146R Clip Hairpin 5 132721 Assembly Hub and Plate L H 6 73540600 Nut Crownlock 3 8 24 8 74610616 Bolt Hex 3 8 24 x 1 9 4460J Tine Outer R H 10 132722 Assembly Hub and Plate R H 11 6555J Tine Inner R H 4 4 2 1 1 5 3 3 11 11 10 9 9 6 8 2 tine_ipb_99_2 ...

Page 26: ...rd 4 419776 Decal Description 5 137282 Decal Caution Drive Control 6 110614X Decal Hand Placement 7 102180X Decal Shift Indicator 8 419743 Decal Console 9 120076X Decal Warning 10 168260 Decal Tine Depth Stake 11 162384 Decal Tine Shield Warning Dom 15 428619 Decal Engine 16 157984 Decal Tine Shield 17 423789 Decal Console Control 428620 Manual Owner s English 428621 Manual Owner s French ...

Page 27: ...ER 944 629663 ENGINE BRIGGS STRATTON MODEL NUMBER 121002 TYPE NO 0220 B8 23 1070 1005 455 332 1036 EMISSIONS LABEL 304 305 37 78 597 456 689 459 1210 8 5 1 1 2 1 55 608 60 65 11 163 161 445 968 425 1395 883 613 300 832 836 677 676 535 ...

Page 28: ...81 333 227 222 356 209A 190 188 621 365 51 95 692 104 137 276 633 186 633A 130 108 127 163 276 276 51 118 122 117 975 133 134 125 97 109 98 190 957 972 958 601 187 601 187A 12 20 51 7 993 1022 883 3 868 358 ENGINE GASKET SET 163 51 7 993 1022 868 1095 VALVE GASKET SET 51 104 137 276 121 CARBURETOR OVERHAUL KIT 633 633A 127 134 122 163 ...

Page 29: ...0 35 238 40 868 51 7 993 1022 619 830 1029 13 1026 45 1022 155 34 192 1023 33 122 5 1034 914 914A 914B 869 1058 OPERATOR S MANUAL 48 SHORT BLOCK 1329 REPLACEMENT ENGINE 1330 REPAIR MANUAL 552 718 15 615 3 306 307 12 20 1 616 2 18 415 21 15A 746 742 220 219 27 30 32 32A 25 26 29 46 24 146 741 16 332 27 28 22 12 1026 851 333 ...

Page 30: ...rol Bracket 190 699220 Screw Fuel Tank 192 694543 Adjuster Rocker Arm 209 691278 Spring Governor Platinum 209 692571 Spring Governor 5 Hole 219 693578 Gear Governor 220 691724 Washer Governor Gear 222 793107 Bracket Control 227 794367 Lever Governor Control 238 691300 Cap Valve 276 271716 Washer Sealing 281 793122 Panel Control 300 693593 Muffler 304 699598 Housing Blower 305 699480 Screw Blower H...

Page 31: ... 790287 Rod Push 1029 691230 Arm Rocker 1034 691343 Guide Push Rod 1036 Label Emissions AvailableFrom A Briggs Stratton Authorized Dealer 1058 277040 Operator s Manual 1070 699201 Screw Flywheel Fan 1095 791798 Gasket Set Valve 1210 791849 Pulley Spring Assembly Pulley 1011 791849 Pulley Spring Assembly Spring 1329 122012 0523 B8 Replacement Engine 1330 276781 Repair Manual 1395 690370 Screw Air C...

Page 32: ...n SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY CUSTOMER RESPONSIBILITIES In additional to complying with all suggested maintenance guidelines and instructions customers obligations shall include but shall not be limited to operating the product in accordance with the owner s manual or any additional instructions or information provided at the time of purchase or i...

Page 33: ...33 SERVICE NOTES ...

Page 34: ...34 SERVICE NOTES ...

Page 35: ...35 SERVICE NOTES ...

Page 36: ...PRINTED IN U S A 02 02 10 CL SR 02488 ...

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