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9

BREAKING IN YOUR TILLER

Break-in your belt(s), pulleys and tine control before you 
actually begin tilling.
•      Start engine, tip tines off ground by pressing handles 

down and engage tine control to start tine rotation. 
Allow tines to rotate for fi ve minutes.

•         Check tine operation and adjust if necessary.  See “TINE 

OPERATION CHECK” in the Service and Ad just ments 
sec tion of this manual.

TILLING HINTS 

CAUTION:  Until you are accustomed 
to handling your tiller, start ac tu al fi eld 
use with throttle in slow position. 

To help tiller  move forward, lift up the handles slightly (thus 
lifting depth stake out of ground). To slow down the tiller, 
press down on handles.

If you are straining or tiller is shaking, the wheels and depth 
stake are not  set properly in the soil being tilled. The proper 
setting of the wheels and depth stake is through trial and 
error and depends upon the soil con di tion.  (The harder or 
wetter the ground, the slower the engine and tine speed 
needed. Under these poor con di tions, at fast speed the 
tiller will run and jump over the ground). 

 A properly adjusted tiller will dig with little effort from the 
operator.
•     Tilling is digging into, turning over, and breaking up 

packed soil before planting.  Loose, unpacked soil helps 
root growth. Best tilling depth is 4"-6".  A tiller will also 
clear the soil of unwanted vege ta tion. The de com po si tion 
of this vegetable mat ter en rich es the soil.  De pend ing 
on the climate (rain fall and wind), it may be advisable 
to till the soil at the end of the growing season to further 
condition the soil.

•         Soil conditions are important for proper tilling. Tines will 

not readily penetrate dry, hard soil which may con trib ute 
to excessive bounce and diffi cult handling of your tiller. 
Hard soil should be mois tened before tilling; however, 
extremely wet soil will “ball-up” or clump during tilling. 
Wait until the soil is less wet in order to achieve the 
best results. When tilling in the fall, remove vines and 
long grass to prevent them from wrapping around the 
tine shaft and slowing your tilling operation.

•      You will fi nd tilling much easier if you leave a row un-

tilled between passes. Then go back between tilled 
rows. (See Fig. 9) There are two reasons for doing 
this. First, wide turns are much easier to negotiate than 
about-faces. Sec ond, the tiller won’t be pulling  itself, 
and you, toward the row next to it.

•     Set depth stake and wheel height for shallow tilling 

when working extremely hard soil or sod. Then work 
across the fi rst cuts at normal depth.

3

2

1

5

4

6

7

FIG. 9

CULTIVATING

Cultivating is destroying the weeds between rows to pre-
 vent them from robbing nourishment and moisture from the 
plants. At the same time, breaking up the upper layer of 
soil crust will help retain moisture in the soil. Best digging 
depth is 1"-3".
•         You will probably not need to use the depth stake. Begin 

by tipping the depth stake forward until it is held by the 
stake spring.

•      Cultivate up and down the rows at a speed which will 

allow tines to uproot weeds and leave the ground in 
rough con di tion, promoting no fur ther growth of weeds 
and grass (See Fig. 10).

FIG. 10

OPERATION

FIG. 8

RECOIL STARTER
HANDLE

SPARK PLUG

CHOKE
CONTROL

THROTTLE
CONTROL

NOTE

:  If at a high altitude (3000 feet) or in cold 

temperatures (below 32°F), the carburetor fuel mixture 
may need to be adjusted for best engine performance. 
See "TO ADJUST CARBURETOR" in the Service and 
Adjustments section of this manual.

NOTE

:  If engine does not start, see troubleshooting 

points.

For Parts Call K&T 606-678-9623 or 606-561-4983

www.mymowerparts.com

Summary of Contents for SOF550A

Page 1: ...orage Troubleshooting Repair Parts OWNER S MANUAL MODEL NO SOF550A 5 HP 26 Inch Tiller For Parts and Service contact our authorized distributor call 1 800 849 1297 For Technical Assistance call 1 800...

Page 2: ...quipment 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...

Page 3: ...EST COVERED BRUSH COVERED OR GRASS COVERED LAND UNLESS THE ENGINE S EXHAUST SYSTEM IS EQUIPPED WITH A SPARK ARRESTER MEETING APPLICABLE LOCAL LAWS IF ANY IF A SPARK ARRESTER IS USED IT SHOULD BE MAINT...

Page 4: ...s and hardware you assemble must be tightened securely Use the correct tools as necessary to insure proper tightness TOOLS REQUIRED FOR ASSEMBLY A socket wrench set will make assembly easier Standard...

Page 5: ...G 3 STAKE SPRING TILLER HANDLES CABLE S FIG 2 HANDLE PANEL BOLTS FLAT WASHER HEX BOLT 5 16 18X3 4 TILLER HANDLE HANDLE PANEL NUT LOCK WASHER HEX BOLT 5 16 18X1 ASSEMBLY HANDLE HEIGHT Handle height may...

Page 6: ...DEPTH STAKE TINE SHIELD CHOKE CONTROL FORWARD TINE CONTROL TINES THROTTLE CONTROL FIG 4 MEETS ANSI SAFETY REQUIREMENTS Our tillers conform to the safety standards of the American National Standards I...

Page 7: ...e ment ENGINE Move throttle control to STOP position Never use choke to stop engine TILLING The speed and depth of tilling is regulated by the position of the depth stake and wheel height The depth st...

Page 8: ...til engine reaches start of compression cycle rope will pull slightly harder at this point Pull recoil starter handle quickly Do not let starter handle snap back against starter If engine fires but do...

Page 9: ...bounce and difficult handling of your tiller Hard soil should be moistened before tilling however extremely wet soil will ball up or clump during tilling Wait until the soil is less wet in order to ac...

Page 10: ...CH USE Check engine oil level Check tine operation Check for loose fasteners LUBRICATION Keep unit well lubricated See LUBRICATION CHART MAINTENANCE SCHEDULE FILL IN DATES AS YOU COMPLETE REGULAR SERV...

Page 11: ...e crankcase oil level before starting the engine and after each five 5 hours of continuous use Add SAE 30 motor oil or equivalent Tighten oil filler plug securely each time you check the oil level TO...

Page 12: ...e 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...

Page 13: ...t with plug TINE ARRANGEMENT Your outer tines can be assembled in several different ways to suit your tilling or cultivating needs CAUTION Tines are sharp Wear gloves or other protection when han dlin...

Page 14: ...ee Figs 21 and 22 Replace V belts if they have stretched considerably or if they show cracks or frayed edges There are two 2 V belts forward inside and reverse outside Belt guard must be removed to se...

Page 15: ...ADJUST CARBURETOR Thecarburetorhasbeenpresetatthefactoryandadjustment should not be necessary However engine performance can be affected by differences in fuel temperature altitude or load If the car...

Page 16: ...sary 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 se...

Page 17: ...l 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 Co...

Page 18: ...13 180847 Bolt Carriage 5 16 18 x 3 4 Gr 5 KEY PART NO NO DESCRIPTION KEY PART NO NO DESCRIPTION 14 181452X417 Panel Handle 16 166377 Handle R H 18 166868 Cable Control Tine 19 151229 Lever Control T...

Page 19: ...t Belt Guard 2 9484R Clip Cable 3 86777 Screw Hex Washer Hd Slotted Thd Cutting 10 24 x 1 2 Type D 4 74610812 Bolt Hex 1 2 20 x 3 4 5 73660600 Nut Hex Lock 3 8 16 6 19131316 Washer 13 32 x 13 16 x 16...

Page 20: ...pth Stake L H KEY PART NO NO DESCRIPTION 15 5388J Spring Stake 16 121117X Bolt Shoulder 17 9188R Wheel 18 19131311 Washer 13 32 x 13 16 x 11 Ga 19 9190R Bracket Wheel 20 73680600 Locknut Crown 3 8 16...

Page 21: ...Y PART NO NO DESCRIPTION 1 156934 Tine Outer R H 2 3146R Retainer Spring 3 156932 Tine Inner R H 4 156931 Tine Inner L H 5 156933 Tine Outer L H 6 4929H Pin Clevis KEY PART NO NO DESCRIPTION For Parts...

Page 22: ...l 126402 Order parts from engine manufac turer KEY PART NO NO DESCRIPTION 1 74760524 Bolt Hex 5 16 18 x 1 1 2 Gr 2 2 74780652 Bolt Hex Fin 3 8 16 x 3 1 4 3 19131311 Washer 13 32 x 13 16 x 11 5 7380060...

Page 23: ...914 Decal Reverse Tine Control 5 141907 Decal Hand Placement 6 176391 Decal Eng Tiller 7 171077 Decal OHV N I C 8 141906 Decal Warning Rotating Tines 9 186245 Decal Hvy Duty 10 171078 Decal Rewind Int...

Page 24: ...anty does not apply to any product which has been subjected to alteration misuse abuse improper assembly or installation delivery damage or to normal wear of the product 5 Exclusions Excluded from thi...

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