Table of Contents
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Operator's Manual
Rear Tine
Tiller
21A-450 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 attester
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.
In the State of California the above is required by law (Section 4442 of the California
Public Resources Code). Other states may have
similar laws, Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized
service dealer or contact the service depadment,
P.O. Box 368022 Cleveland,
Ohio 44136-9722.
MTD PRODUCTS
INC P.O. BOX 368022
CLEVELAND,
OHIO 44136.9722
PRINTED IN U.S.A.
FORM
NO. 770-10137D
(10i20oo)
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Table of Contents
Related Manuals for Yard Machines 21A-450 Series
Summary of Contents for Yard Machines 21A-450 Series
- Page 1 Operator's Manual Rear Tine Tiller 21A-450 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 attester meeting...
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Page 2: Table Of Contents
TABLEOFCONTENTS Content Page Important Safe Operation Practices ..............Loose Parts & Hardware Pack ................Assembling Your Tiller ..................Know Your Tiller ....................Operating Your Tiller ..................Making Adjustments ..................Maintaining Your Tiller ..................Service ....................... Off Season Storage ................... Troubleshooting .................... -
Page 3: Important Safe Operation Practices
SECTION 1: IMPORTANT SAFEOPERATION 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 al! instructions in this manual before attempting to operate this machine. Failure to comply with these instructions may result in personal injury. - Page 4 Keep bystanders, helpers, pets, and children at Inspect thoroughly for damage. Repair any damage least 75 feet from the machine while it is in before starting and operating. operation. Stop the machine if anyone enters the 18. Keep all shields, guards and safety devices in place area.
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Page 5: Loose Parts & Hardware Pack
SECTION 2: LOOSE PARTS Handle Assembly Depth Control Stake Assembly i¸ • NOTE: Cable tie not shown. -
Page 6: Assembling Your Tiller
SECTION 3: ASSEMBLING YOUR TILLER IMPORTANT:This unit is shipped WITHOUT GASOLINE Attaching DepthStakeAssembly or OIL. After assembly, see separate engine manual for • Tip the tiller forward so it rests on front proper fuel and engine oil recommendations. counterweight. NOTE: Left right determined... - Page 7 NOTE: Do not overtighten clutch cable. Too much Slot Head Screw, tension may cause it to break. Nut, Flat Washers Internally Threaded cable adjustment as instructed on this page WARNING: Be certain to check the clutch Tube before operating the tiller. Secure clutch cable to handle using cable tie.
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Page 8: Know Your Tiller
TirePressure Now move the shift lever to FORWARD (Wheels Forward) position. Carefully engage the clutch by lifting The tires on your unit may be over-inflated for shipping the clutch control bail against the handle. The wheels purposes. Reduce the tire pressure before operating should spin. -
Page 9: Operating Your Tiller
SECTION 5: OPERATING YOUR TILLER NOTE: NOTE: Engine is shipped without oil. After the first ten hours of operation, recheck the clutch adjustment. Refer to "Checking the Clutch WARNING: Use the reverse tine drive Adjustment" section of the Assembly Instructions. when tilling virgin ground, sod or hard soil. -
Page 10: Making Adjustments
Place sideshieldinposition desired. R eplace wing IMPORTANT: When using the forward tine drive, lower nutsandtighten securely. the depth stake (use a shallower tilling depth) to make certain the tines do not run across the ground. selection handle with the wheels or tines ARNING: move... -
Page 11: Maintaining Your Tiller
SECTION 7: SERVICE Clutch Bail--Lubricate the pivot point on the clutch bail Transmission_The transmission is pre-lubricated and and the cable at least once a season with light oil. The sealed at the factory. It requires no checking unless the control must operate freely in both directions. transmission is disassembled. -
Page 12: Off Season Storage
Idler Torx Screws Belt Cover Pulley lex Cap Nut Engine Idler Self Pulley Belt Keeper Brkt. Brkt. Screw Figure 10 Figure 9 Tires Upon reassembly, make certain the belt is routed over the idler pulley and ir_side of belt keepers by engine Recommended operating tire pressure is pulley. -
Page 13: Troubleshooting
SECTION 10: TROUBLE SHOOTING GUIDE Possible Cause(s) Corrective Action Fill tank with clean, fresh gasoline. Fuel will not last over Fuel tank empty, or stale fuel, IEngine fails to Istart 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. -
Page 14: Parts List
SECTION 11: PARTS LISTFORMODEL 450 SERIES... - Page 15 Model450 Series RER i i PART NO, DESCRIPTION PART NO. DESCRIPTION ..i ..... 611-0020 721-0378 Seal 1.0 Shaft Wheel Shaft Ass'y: 33T Seal 35 Shaft i 611-0021 721-0379 Tine Shaft Ass'y: 18T 726-0277 611-0128 Jack Shaft Ass'y Taper Cap Ring 611-0129 732-0496 Input Shaft Ase'y...
- Page 16 Model 4 50Series - 20 '_,-_, 6 !6 61 / .,_- - 34 J 49 35 / , 55...
- Page 17 Model450 Series REF. I PART NO. DESCRIPTION PART NO. DESCRIPTION Shift Rod 747-1152 I 750-0885 Spacer.435 OD. x .322 I.D. Shoulder 649-0041 I 786-0090 Upper Handle Ass'y 649-0034 1786-0113 Tine Shield Hinge Flap Lower Handle Ass'y 710-3005 Hex Screw 3/8-16 x 1,25 _ 786-0176 R.H.
- Page 18 Model450 Series ¸ _°_ _o 31...
- Page 19 Model450 Series NO, _ PART NO. DESCRIPTION NO. _ART DESCRIPTION 1, _686-0111 _Belt Cover Brkt. Ass'y ..!785-0185 IBelt Keeper Brkti_-- ..710-0237 Hex Bolt 5/16-24 x .62" Lg. 786-0187 IShift Cover Brkt, 1710-0412 Hex Bolt1/4-28 x .75 Lg. 1786-0193 ildlerBeltKeeper 1710-0502A HexWash.TT-SemsScrew3!8-16x...
- Page 20 MANUFACTURER'S LIMITED WARRANTY FOR: YARDMACHINES 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 merchandise as brake adjustments, clutch adjustments...