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14

Section 4: Operation

Preparing Seedbeds

Fig. 4-6

Fig. 4-7

• If the garden size will not permit

lengthwise and then crosswise
tilling, then overlap the first passes
by one-half a tiller width, followed
by successive passes at one-
quarter width (see Fig. 4-8).

With planning, you can allow
enough room between
rows to cultivate (see Fig.
4-9).  Leave room for the
hood width, plus enough
extra room for future
plant growth.

Fig. 4-9

1

2

3

Fig. 4-8

Cultivating

• When preparing a seedbed, go over the same path twice in the first row, then

overlap one-half the tiller width on the rest of the passes (see Fig. 
4-6).  When finished in one direction, make a second pass at a right angle, as
shown in Fig. 4-7.  Overlap each pass for best results (in very hard ground, it
may take three or four passes to thoroughly pulverize the soil.)

Tilling wet soil often results in large, hard
clumps of soil that can interfere with
planting. If time permits, wait a day or two
after heavy rains to allow the soil to dry
before tilling.  Test soil by squeezing it into
a ball. If it compresses too easily, it is too
wet to till.

Avoid Tilling Soggy, Wet Soil

Whenever possible, walk on the untilled
side of the unit to avoid making footprints
in your freshly tilled or cultivated soil.
Footprints cause soil compaction that can
hamper root penetration and contribute to
soil erosion.  They can also “plant”
unwanted weed seeds back into the
freshly tilled ground.

While tilling, relax and let the wheels pull
the tiller along while the tines do the dig-
ging.  Walk on the side that is not yet fin-
ished (to avoid making footprints in the
freshly tilled soil) and lightly, but securely
grip the handlebar with just one hand.

Let the Tiller Do the Work

Avoid Making Footprints

• Avoid pushing down on the handlebars in an attempt to force the tiller to dig deeper.  Doing

so takes the weight off the powered wheels, causing them to lose traction. Without the
wheels helping to hold the tiller back, the tines will attempt to propel the tiller – often
causing the tiller to skip rapidly across the ground.  (Sometimes, slight downward pressure
on the handlebars will help get through a particularly tough section of sod or unbroken
ground, but in most cases this won’t be necessary.)

• Avoid trying to dig too deeply too quickly, especially when busting sod or when tilling soil

that hasn’t been tilled for some time.  Use shallow depth regulator settings (only an inch or
two deep) for the first passes through the soil.  With each succeeding pass, dig another inch
or two deeper.  (Watering the area a few days prior to tilling will make tilling easier, as will
letting the newly worked soil set for a day or two before making a final, deep tilling pass.)

• When cultivating (breaking up surface soil around plants to destroy weeds, see Fig. 4-9), adjust the tines to dig only 1" to 2" deep.

Using shallow tilling depths helps prevent injury to plants whose roots often grow close to the surface.  If needed, lift up on the handle-
bars slightly to prevent the tines from digging too deeply.  (Cultivating on a regular basis not only eliminates weeds, it also loosens and
aerates the soil for better moisture absorption and faster plant growth.)

With experience, you will find the “just right” tilling depth and tilling speed combination that is best
for your garden.  

Set the engine throttle lever at a speed to give the engine adequate power and yet allow it to operate at the slowest possible speed...at
least until you have achieved the maximum tilling depth you desire. Faster engine speeds may be desirable when making final passes
through the seedbed or when cultivating. Selection of the correct engine speed, in relation to the tilling depth, will ensure a sufficient
power level to do the job without causing the engine to labor.

TILLING TIPS & TECHNIQUES

Tilling Depths

Choosing Correct 
Wheel and Tine Speeds

Before tilling, contact your tele-
phone or utilities company and
inquire if underground equipment
or lines are used on your property.
Do not till near buried electric
cables, telephone lines, pipes or
hoses

.

WARNING

Summary of Contents for 12209 Bronco

Page 1: ...UAL Rear Tine Tillers Safety Assembly Controls Operation Maintenance Parts List 4 50 GARDEN WAY INCORPORATED SAFETY FIRST Before operating this equipment read this Owner s Manual and the separate manual supplied by the engine manufacturer TUFFY BRONCO Model 12209 Model 12210 Model 12227 ...

Page 2: ... allows you to till and cultivate your garden with ease and accomplish other property manage ment projects as well Your tiller is famous for its rugged ness performance and high quality engineering We know you ll enjoy using it Please carefully read this Manual It tells you how to safely and easily assemble operate and maintain your machine four tiller models are covered in this Manual be sure to ...

Page 3: ...l is spilled do not attempt to start the engine but move the machine away from the area of spillage and avoid creating any source of ignition until fuel vapors have dissipated 7 Never make adjustments when engine is running unless recommended by manufacturer Operation 1 Do not put hands or feet near or under rotating parts 2 Exercise extreme caution when on or crossing gravel drives walks or roads...

Page 4: ... by releasing whichever clutch control is engaged Do not attempt to restrain the tiller 15 Do not overload the tiller s capacity by attempting to till too deeply at too fast a rate 16 Never operate the tiller at high trans port speeds on hard or slippery surfaces Look behind and use care when backing up 17 Do not operate the tiller on a slope that is too steep for safety When on slopes slow down a...

Page 5: ...ne Figure 1 2 Location of safety and operating decals 5 5HP Model shown TO AVOID SERIOUS INJURY READ THE OWNER S MANUAL KNOW LOCATIONS AND FUNCTIONS OF ALL CONTROLS KEEP ALL SAFETY DEVICES AND SHIELDS IN PLACE AND WORKING NEVER ALLOW CHILDREN OR UNINSTRUCTED ADULTS TO OPERATE TILLER SHUT OFF ENGINE AND DISCONNECT SPARK PLUG WIRE BEFORE MANUALLY UNCLOG GING TINES OR MAKING REPAIRS KEEP BYSTANDERS A...

Page 6: ... 1 Handlebar Support see A Fig 2 2 1 Handlebar Assembly see K Fig 2 2 Hardware bag contents 1 Slotted hd screw 10 24 x 2 1 Hex hd screw 1 4 20 x 1 1 4 6 Hex hd screw 5 16 18 x 1 1 2 2 Hex hd screw 3 8 16 x 3 4 2 Flat washer 3 8 6 Split lockwasher 5 16 1 Hex locknut 1 4 20 6 Hex nut 5 16 18 1 Hex nut 10 24 2 Hex locknut 3 8 16 1 Spring cable see W Fig 2 5 1 Bracket forward clutch cable see P Fig 2 ...

Page 7: ...ns in Section 3 STEP 4 INSTALL FORWARD CLUTCH CABLE 1 Attach the forward clutch cable bracket P Fig 2 4 to the handlebar support A with a 1 4 20 x 1 1 4 hex hd screw R and 1 4 20 hex locknut S Tighten securely 2 Carefully unwrap the forward clutch cable cable without an attached knob from its shipping position and slide the thin cable wire T Fig 2 4 into the slot in the cable bracket Push the cabl...

Page 8: ...rap the reverse clutch cable CC Fig 2 8 and Fig 2 9 from its shipping position and route it up to the handlebar Be sure that the cable is routed beneath the Forward Clutch Bail 2 Remove the two self tapping screws AA Fig 2 8 from the handlebars posi tion the reverse cable mounting bracket BB as shown and reinstall the two screws 3 Insert the cable CC Fig 2 8 through the slot in the cable bracket a...

Page 9: ... damage will result if the engine is run without oil 1 Refer to the separate Engine Owner s Manual for engine oil specifications and capacities 2 With the tiller on level ground move the Depth Regulator Lever FF Fig 2 10 up or down until the engine is level 3 Add motor oil as described in the Engine Owner s Manual 4 Move the Depth Regulator Lever all the way down until the highest notch is engaged...

Page 10: ...tter C Figures 3 2 and 3 3 from wheel drive pin A 4 FOR WHEEL DRIVE MODE Figure 3 2 Slide wheel outward and align holes in wheel hub D Figure 3 2 and wheel shaft B Insert wheel drive pin A through wheel hub D and wheel shaft B Secure wheel drive pin with hairpin cotter C by pushing hairpin cotter in as far as it will go Repeat with the other wheel and then remove the support from beneath the trans...

Page 11: ...e tilling depth The lowest notch allows a tilling depth of approximately 6 depending on soil conditions For best results always begin tilling at a very shallow depth setting and gradually increase the tilling depth HANDLEBAR HEIGHT ADJUSTMENT The handlebar height is adjustable to three different settings Figure 3 6 In general adjust the handlebars so they are at waist level when the tines are 3 4 ...

Page 12: ...see Wheel Drive Pins in Section 3 of this manual 3 Move the Depth Regulator Lever all the way down to the travel position so that the tines clear the ground 4 Release all controls on the tiller 5 On engine s with a fuel shut off valve turn valve to open position as instructed in the separate Engine Owner s Manual 6 Put ignition switch and or throttle con trol lever located on engine in the ON RUN ...

Page 13: ... only a Look behind and exercise caution when operating in reverse Do not till while in reverse b Stop all forward motion Lift handlebar with one hand until tines are off the ground and then pull Reverse Clutch Control knob out see Fig 4 3 To stop reversing let go of Reverse Clutch Control knob 6 To move the Model 12227 in reverse for short distances a Release Forward Clutch Bail Then lift handleb...

Page 14: ... hold the tiller back the tines will attempt to propel the tiller often causing the tiller to skip rapidly across the ground Sometimes slight downward pressure on the handlebars will help get through a particularly tough section of sod or unbroken ground but in most cases this won t be necessary Avoid trying to dig too deeply too quickly especially when busting sod or when tilling soil that hasn t...

Page 15: ...ing footprints or wheel marks When tilling vertically try to make the first pass uphill as the tiller digs more deeply going uphill than it does downhill In soft soil or weeds you may have to lift the handlebars slightly while going uphill When going downhill overlap the first pass by about one half the width of the tiller Tilling Across Slopes Without Using Terraces Horizontal Tilling If vertical...

Page 16: ... 2 3 12 UNTILLED 1 REPEAT DOWNHILL UPHILL LOADING AND UNLOADING THE TILLER Before loading or unloading stop the engine wait for all parts to stop moving disconnect the spark plug wire and let the engine and muffler cool The tiller is too heavy and bulky to lift safely by one person Two or more people should share the load Use sturdy ramps and manually engine shut off roll the tiller into and out o...

Page 17: ...screws D Fig 5 1 Figure 5 1 A B C D If a cover is leaking check for loose screws If the screws are tight a new gasket or oil seal may be required If the leak is from around a shaft and oil seal the oil seal probably needs to be replaced See your authorized dealer or contact the factory for service or advice IMPORTANT Never operate the tiller if the transmission is low on oil Check the oil level af...

Page 18: ... 30 operating hours The tines can be replaced either individually or as a com plete set See the Parts List pages for tine identification and part numbers A Tine Inspection With use the tines will become shorter narrower and pointed Badly worn tines will result in a loss of tilling depth and reduced effectiveness when chopping up and turning under organic matter B Removing Installing a Single Tine ...

Page 19: ...the first measurement 4 If the spring is too short less than 1 16 the tension is too loose If the spring is too long more than 3 16 the tension is too tight 5 To adjust the length of the spring a Release the Forward Clutch Bail b Unthread the hex nut C Figure 5 4 about halfway up the adjustment screw D c Unhook the top of the spring from the Forward Clutch Bail d Use pliers to prevent the adjuster...

Page 20: ...nut C Figure 5 6 one to two turns Pull the threaded cable adjuster A Figure 5 6 to the left until the inner jam nut C touches the bracket 6 Prevent the inner jam nut C from turning and tighten the outer jam nut D against the bracket Prevent the outer jam nut D from turning and tighten the inner jam nut C against the bracket 7 Measure the gap by repeating Step 3 Readjust as needed by repeating Step...

Page 21: ... the Engine Owner s Manual THROTTLE LEVER ADJUSTMENT If the engine does not respond to various throttle lever settings refer to the Engine Owner s Manual for service information or contact your local authorized engine dealer CARBURETOR GOVERNOR CONTROL ADJUSTMENTS The carburetor was adjusted at the factory for best operating speed Refer to the Engine Owner s Manual for any adjust ment information ...

Page 22: ...r cooling system see Engine Owner s Manual Engine overheats 1 Engine cooling system clogged 1 Clean air cooling area see Engine Owner s Manual 2 Carburetor out of adjustment 2 See Engine Service Dealer 3 Oil level is low 3 Check oil level see Engine Owner s Manual Engine does not 1 Misadjusted throttle control or ignition switch 1 See Engine Owner s Manual or Engine Service Dealer shut off Wheels ...

Page 23: ...lator Lever 1 8A 9308 Spirol Pin 2 9 9384 Spring Depth Regulator 1 10 9534 Spacer 1 11 1100069 Hex Hd Screw 1 4 20 x 1 1 12 9811 Hex Lock Nut 1 4 20 1 13 1916119001 Hood Bracket Right Hand 1 14 1916120001 Hood Bracket Left Hand 1 15 11000242 Lock washer 5 16 2 16 1186331 Hex Hd Flange Screw 5 16 18 x 1 2 17 1186230 Hex Nut 5 16 18 2 18 1100808 Hex Hd Screw 5 16 18 x 1 1 4 2 19 55088 Bushing 2 20 1...

Page 24: ...24 Parts List Models 12209 12210 and 12227 DRAWING NO 2 ...

Page 25: ...B C 6 23 1901273010 Panel 1 24 55097 Decal Model Name Logo A 1 1916818 Decal Model Name Logo B 1 1917555 Decal Model Name Logo C 1 25 1916674001 Bracket Reverse Clutch Cable B C 1 26 1916719 Cable Ass y Reverse Clutch B C 1 27 1186227 Hex Nut 10 24 1 28 1916929 Decal Reverse Drive Control B C 1 29 1735531 Cable Tie B C 1 1 1100004 Hex Screw 5 16 24 x 3 4 Grade 5 A 1 1100005 Hex Screw 5 16 24 x 1 G...

Page 26: ...6 2 Shim 0 030 thick A R 1166 3 Shim 0 015 thick A R 1166 4 Shim 0 010 thick A R 1166 5 Shim 0 005 thick A R 4 1086 Bronze Bushing 4 5 55004 Wheel Shaft A 1 1916741 Wheel Shaft B C 1 6 9305 Key Hi Pro 1 4 x 1 1 7 1132 2 Spacer 4 8 1904278 Worm Gear Wheel Shaft 1 9 1915074 Tiller Shaft 1 10 1104 Woodruff Key 1 11 1904279 Worm Gear Tiller Shaft 1 A For Model 12227 A R As Required B For Model 12209 C...

Page 27: ...ng Cover 2 7 9617 Oil Seal Drive Shaft 1 8 9621 Oil Seal Wheel Shaft 2 9 1915084010 Transmission Housing Ass y 1 10 1909374 Oil Seal Tine Shaft 2 11 55011 1 Bearing Cap Gasket 010 thick 1 55011 2 Bearing Cap Gasket 030 thick 1 12 1916111001 Rear Bearing Cap 1 13 1186331 Hex Hd Flange Screw 5 16 18 x 1 2 14 1100044 Hex Hd Flange Screw 5 16 18 x 3 4 1 15 1100242 Lock Washer 5 16 1 REF PART No No DES...

Page 28: ...2227 33 44 11 45 13 30 46 47 4 15 37 40 38 39 24 24 43 10 26 29 12 25 21 36 15 47 30 28 24 22 17 27 32 34 34 16 18 3 8 7 7 23 31 9 20 35 3 15 24 41 42 2 5 6 7 3 3 3 3 24 14 19 41 4 17 1 Forward Clutch Cable Reverse Clutch Cable DRAWING NO 6 ...

Page 29: ...16 1 24 1107382 Flat Washer 2 25 9386 Klip Ring 1 26 55037 Forward Drive Belt A 1 1916657 Forward Drive Belt B C 1 27 55034 Forward Return Spring 1 28 55033 Bushing Forward Idler Lever 1 29 1916658 Reverse Drive Belt B C 1 30 9944 Belleville Washer 1 31 55031 Transmission Pulley A 1 1916532 Transmission Pulley B C 1 32 1916117001 Bracket Cable Mounting 1 33 1900766 Decal Stabilization 1 34 1186328...

Page 30: ...0 and 12227 DRAWING NO 7 RIGHT SIDE LEFT SIDE Left Hand Tine Right Hand Tine Hold Tine With Blunt End Toward You NOTE Identify Left and Right sides of tiller by standing in operator position and facing direction of forward travel 7 8 ...

Page 31: ...ght left hand tines and required hardware 1 5 50049 02 Bolo Tine Left Hand Single tine used on right side of tiller Incl two each Refs 1 3 8 6 1916747001 Tine Holder B C 2 1915075001 Tine Holder A 2 7 1917486 Wheel Tire Ass y B 2 1917487 Wheel Tire Ass y C 2 55095 01 Wheel Tire Ass y Left Side A 1 8 55095 02 Wheel Tire Ass y Right Side A 1 9 9380 Clevis Pin 312 x 1 3 4 2 10 9338 Hair Pin Cotter 2 ...

Page 32: ...the unit Replacement Parts Factory specified replacement parts are available from your authorized dealer or directly from the factory When ordering parts be sure to provide the following Model Serial Numbers of the unit Part number of the part needed Part Description Quantity needed NOTE All replacement parts must conform to our rigid quality specifications Although some replacement parts we provi...

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