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Operator’s Manual
Rear Tine Tiller
Models
410 Thru 420 Series
IMPORTANT: Read safety rules and instructions carefully before operating equipment.
Warning: This unit is equipped with 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
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TABLE OF CONTENTS Content Page Important Safe Operation Practices................................................................... 3 Assembling Your Tiller.......................................................................................5 Know Your Tiller................................................................................................. 8 Operating Your Tiller..........................................................................................9 Making Adjustments ......
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SECTION 1: IMPORTANT SAFE OPERATION PRACTICES WARNING: This symbol points out important safety instructions which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate your tiller. Failure to comply with these instructions may result in personal injury. When you see this symbol— heed its warning. WARNING: The Engine Exhaust from this product contains chemicals known to the State o
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Never store the machine or fuel container inside CHILDREN where there is an open flame or spark such as a Tragic accidents can occur if the operator is not gas hot water heater, space heater, clothes dryer or alert to the presence of small children. Children are furnace. often attracted to the tilling activity. Never assume Never run your machine in an enclosed area as the that children will remain where you last saw them. exhaust from the engine contains carbon Keep children ou
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SECTION 2: ASSEMBLING YOUR TILLER This instruction manual covers several different model Tip the tiller forward so it rests on front tillers. Follow only those instructions which pertain to counterweight. your unit. Unthread the “T” knob from the top of the depth stake, and remove the flat washer and hex bolt. Remove the hairpin clip from the clevis pin. See To Remove Unit From Carton Figure 1. Remove staples, break glue on top flaps, or cut Raise the tine shield hinge flap assembl
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Flange Nut Retainer Bracket T-Handles Shoulder Bolt Lock Nut Lift up Gear Shift Handle Rod Handle Adjustment Rod (Model 420 series only) Figure 5 Figure 3 Place the hex opening of the flange nut retainer Gear Shift Rod bracket over the flange nut securing the handle Opening Shift Cover adjustment lock and install the lock nut on the lower shoulder bolt. See Figure 4. Hex Hole in Handle Adjustment Retainer Bracket Lock Rubber Washer over Flange Nut Flat Washer Hairpin Clip Figure 6 Insta
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Slide the rubber washer on the unthreaded end of NOTE: Do not overtighten control wire. Too much the handle adjustment rod. Insert the end of the tension may cause it to break. handle adjustment rod into the positioner bracket beneath the handle, on top of the tine shield. See Final Clutch Adjustment Figure 7. Secure with hairpin clip. IMPORTANT: Service the engine with oil and gasoline Reinstall the nut and T-handle. before checking this adjustment. Refer to the separate engine manual p
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SECTION 3: KNOW YOUR TILLER WARNING: Make certain unit is in NEUTRAL when starting the engine. Gear Selection Handle Clutch Handle - (Bail) The clutch handle (bail) is located beneath the handle. See Figure 10. Squeezing the clutch handle against the Handle Height handle engages the wheel and tine drive mechanisms. Adjustment Handle Clutch Throttle Control (All Engines) Lock Adjustment Handle The throttle control lever is located on the engine. It (Side to Side) (Bail) controls the engine sp
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SECTION 4: OPERATING YOUR TILLER NOTE: Engine is shipped without oil. Stand at side of tiller. Grasp the starter handle and pull out slowly, until it pulls slightly harder. Let rope rewind slowly. Before Starting Pull starter handle rapidly. Do not allow handle to Service engine with oil as instructed in the snap back. Allow it to rewind slowly while keeping a separate engine manual packed with your unit. firm hold on the starter handle. Fill fuel tank with clean, fresh, lead-free.
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depth stake and side shields and make one or two Setting The Depth more passes over the area. Tilling depth is controlled by the depth stake which can When tilling loose soil, depth stake may be raised be adjusted to five different settings. See Figure 12. to its highest position (use bottom adjustment hole) Adjust the side shields as shown in Figure 13, as you to give the deepest tilling depth. Raise the side adjust the depth stake. Be certain spark plug wire is shields to their highe
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To adjust the tension on the belt, refer to final clutch Be careful of heated surfaces and muffler. adjustment in Assembly Instructions. Never make unnecessary adjustments. The factory settings are correct for most applications. If Carburetor Adjustment adjustments are needed, refer to the separate engine manual packed with your tiller. WARNING: If any adjustments are made to the engine while the engine is running, (e.g. carburetor), disengage all clutches and tines. Keep clear of all moving
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Remove belt. Reassemble new belt, following Belt Replacement instructions in reverse order. CAUTION: Do not use an off-the-shelf NOTE: Upon reassembly, make certain the belt is belt. routed over the idler pulley and inside of belt keepers by engine pulley. See Figure 14. Your tiller has been engineered with a belt made of special material (Kevlar Tensile) for longer life and Engine better performance. It should not be replaced with an Belt Keeper Pulley off-the-shelf belt. If belt replacem
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SECTION 9: TROUBLE SHOOTING GUIDE Trouble Possible Cause(s) Corrective Action Engine fails to Fuel tank empty, or stale fuel. Fill tank with clean, fresh gasoline. Fuel will not last over start thirty days unless a fuel stabilizer is used. Throttle control lever not in correct Move throttle lever to start position. starting position (if so equipped). Blocked fuel line. Clean fuel line. Dirty aircleaner. Refer to the engine manual packed with your unit. Choke not in ON position. Move switch to
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Models 410 Series 14
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Models 410 Series REF. PART REF. PART DESCRIPTION DESCRIPTION NO. NO NO. NO 1 735-0246 Vinyl End Plug 33 786-0090 Side Shield 2 647-0014 Clutch Control Ass’y. 34 786-0113 Rear Tine Shield 3 710-1017 Torx Mach. AB-Tap Scr. 35 686-0044A End Cover Ass’y. 1/4 x .62" Lg. 36 738-0849 Hex Cap Bolt 5/16-18 x 1.25" 4 786-0131 Handle Cover 38 710-0376 Hex Bolt 5/16-18 x .75" Lg. 5 786-0098 Retaining Brkt.—R.H. 39 710-3097 Carriage Bolt 3/8-16 x 1" Lg. 6 786-0118 Retaining Brkt.—L.H. 40 712-0798 Hex Ins.
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Models 410 & 420 Series REF. REF. NO. PART NO. DESCRIPTION NO. PART NO. DESCRIPTION 1 710-3008 Hex Bolt 5/16-18 x .75" Lg. 24 756-0971 Inner Engine Pulley Half 2 712-3004A Hex Top L-Nut 5/16-18 Thd. 25 786-0080 Idler Bracket 3 786-0107 Cable Mtg. Bracket 26 710-0723 Hex Bolt 3/8-16 x 1.25" Lg. 4 710-1017 Torx Mach. AB-Tap Scr. 1/4 x .6" Lg 27 746-0916 Clutch Cable 5 738-0899 Belt Cover Bolt 28 734-0255 Air Valve 6 786-0117 Shift Cover Bracket 29 714-0104 Hairpin Clip 7 786-0100 Belt Cover 30 711
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Models 410 & 420 Series REF. REF. NO. PART NO. DESCRIPTION NO. PART NO. DESCRIPTION 1 721-0295 Chain Case Gasket 30 736-0541 Fl-Wash. 7/16" I.D. x 1-3/8" O.D. 2 786-0086 Reinforcement Plate 31 617-0002 Gear and Sprocket Ass’y. 3 716-0865 Snap Ring 32 738-0884 Jack Shaft 5" Lg. 33 750-0931 Spacer .636" I.D. x .86" O.D. 4 750-0938 Spacer .735" I.D. x .886" O.D. 5 611-0058 Wheel Shaft 35 717-1411 Spur Gear 10T 6 717-1458 Spur Gear 46T 36 750-0930 Spacer 1.5" I.D. x 1.76" O.D. 37 713-0436 Sprocket—#
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Model 420 Series 18
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Model 420 Series REF. REF. NO. PART NO. DESCRIPTION NO. PART NO. DESCRIPTION 1 735-0246 Vinyl End Plug 38 710-3008 Hex Bolt 5/16-18 x .75" Lg. 2 647-0014 Clutch Control Ass’y. 39 710-3097 Carriage Bolt 3/8-16 x 1" Lg. 3 710-1017 Torx Mach. AB-Tap Scr. 40 712-0798 Hex Nut 3/8-16 Thd. 4 786-0131 Handle Cover 43 712-3004A Hex Fl. Tp. L-Nut 5/16-18 Thd. 5 786-0098 Retaining Brkt.—R.H. 44 786-0076 Tine Shield Brkt.—R.H. 6 786-0118 Retaining Brkt.—L.H. 45 786-0077 Tine Shield Brkt.—L.H. 7 720-0278A Gr
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MANUFACTURER’S LIMITED WARRANTY FOR: c. Routine maintenance items such as lubricants, filters, The limited warranty set forth below is given by MTD blade sharpening and tune-ups, or adjustments such PRODUCTS INC (“MTD”) with respect to new merchan- as brake adjustments, clutch adjustments or deck dise purchased and used in the United States, its posses- adjustments; and normal deterioration of the exterior sions and territories. finish due to use or exposure. d.MTD does not extend any warranty f
