For Parts Call 606-678-9623 or 606-561-4983 Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty OPERATOR’S MANUAL Rear Tine Tiller – Model Series 450 IMPORTANT READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, brushcovered or grass-covered land unless the engine’s exhaust system is equipped with a spark arreste
For Parts Call 606-678-9623 or 606-561-4983 This Operator’s Manual is an important part of your new tiller. It will help you assemble, prepare, and maintain the unit for best performance. Please read and understand what it says. Table of Contents Safety Labels....................................................... 3 Safe Operation Practices.................................... 4 Assembling Your Tiller......................................... 6 Know Your Tiller................................................
For Parts Call 606-678-9623 or 606-561-4983 1 Safety Labels WARNING Hot surfaces can cause severe burns. Do not touch muffler or adjacent areas. S30647 WARNING WARNING WARNING C U T DEPTH STAKE O U T TRANSPORT 1" 3" 5" 7" KEEP AWAY FROM ROTATING TINES. ROTATING TINES WILL CAUSE INJURY. TO AVOID SERIOUS INJURY 1. READ THE OPERATOR'S MANUAL. . KNOW LOCATION AND FUNCTIONS OF ALL CONTROLS. 3. KEEP ALL SAFETY DEVICES AND SHIELDS IN PLACE AND WORKING. 4.
For Parts Call 606-678-9623 or 606-561-4983 2 Safe Operation Practices WARNING: Engine Exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to State of California to cause cancer and birth defects or other reproductive harm. DANGER: This machine was built to be operated according to the rules for safe operation in this manual. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury.
For Parts Call 606-678-9623 or 606-561-4983 • • • • • • • • • • • After striking a foreign object, stop the engine, disconnect the spark plug wire and ground against the engine Thoroughly inspect the machine for any damage. Repair the damage before starting and operating. Disengage all clutch levers (if fitted) and stop engine before you leave the operating position (behind the handles). Wait until the tines come to a complete stop before unclogging the tines, making any adjustments, or inspections.
For Parts Call 606-678-9623 or 606-561-4983 3 Assembling Your Tiller WARNING Disconnect the spark plug wire and ground it against the engine to prevent unintended starting. Be certain to check the clutch cable adjustment before operating the tiller. NOTE: References to right or left side of the tiller are determined from behind the unit in the operating position.
For Parts Call 606-678-9623 or 606-561-4983 Slot Head Screw, Nut, & Flat Washers Internally Threaded Tube Attaching Control Rod • Make sure the handle assembly is in the highest position. Refer to Know Your Tiller section. • Remove hairpin clips from control rod, (rubber washers to remain on control rod). • Insert the shorter, (angled), end of the control rod through the indicator bracket on the shift cover and secure with hairpin clip that was previously removed. See Figure 3-5.
For Parts Call 606-678-9623 or 606-561-4983 4 Clutch Control Gear Selection Handle Know Your Tiller Handle Adjustment Lock Depth Stake WARNING Make certain unit is in NEUTRAL when starting the engine. Figure 4-1 Gear Selection Handle IMPORTANT: Use the reverse tine drive when tilling virgin ground, sod, or hard soil. Use the forward tine drive when cultivating or tilling soft ground. The gear selection handle is located in the center of the handle on the tiller.
For Parts Call 606-678-9623 or 606-561-4983 4 Clutch Control The clutch control is located beneath the handle. Squeezing the clutch control against the handle engages the wheel and tine drive mechanisms. NOTE: Never engage clutch lever while shifting. Know Your Tiller Handle Adjustment Lock The handle may be adjusted to the height desired. Loosen the handle height adjustment lock a few turns. Pivot handle up or down to desired position. Tighten lock.
For Parts Call 606-678-9623 or 606-561-4983 5 Operating Your Tiller WARNING: Read, understand, and follow Setting The Depth all instructions and warnings on the maTilling depth is controlled by the depth stake which can be chine and in this manual before operating. adjusted to five different settings. Adjust the side shields as you adjust the depth stake. Before Starting WARNING: Be certain spark plug wire is disconnected and grounded against the engine when performing any adjustments.
For Parts Call 606-678-9623 or 606-561-4983 To adjust the depth stake, remove the clevis pin and hairpin Belt Tension Adjustment clip. Move the depth stake to the desired setting and Periodic adjustment of the belt tension may be required secure with the clevis pin and hairpin clip. See Figure 5-1. due to normal stretch and wear on the belt. Adjustment To adjust the side shields, remove the wing nuts.
For Parts Call 606-678-9623 or 606-561-4983 7 Maintaining Your Tiller WARNING: Disconnect the spark plug wire and ground it against the engine before performing any repairs. Cleaning Tine Area Refer to the separate engine manual for engine maintenance instructions. Clean the underside of the tine shield after each use. The dirt washes off the tines easier if rinsed off immediately instead of after it dries.
For Parts Call 606-678-9623 or 606-561-4983 Idler Pulley Rod • Remove the belt keeper bracket located behind the engine pulley by removing two hex bolts and lock washers. See Figure 8-1. • Remove belt and reassemble new belt. Follow instructions in reverse order. NOTE: Upon reassembly, make certain the belt is routed over the idler pulley and inside of belt keepers by engine pulley. See Figure 8-1.
For Parts Call 606-678-9623 or 606-561-4983 16 13 35 29 46 53 16 52 31 35 28 17 45 12 44 17 33 36 6 15 3 27 5 1 10 18 36 42 23 7 22 34 36 43 47 21 32 20 8 37 51 50 10 9 24 34 45 26 25 36 41 36 35 16 29 4 40 19 49 44 33 14 35 16 14 2 14 48 28 14 35 16 14 www.mymowerparts.
For Parts Call 606-678-9623 or 606-561-4983 9 Ref. Part No. Part Description Ref. Part No. Part Description 1. 611-04074 Wheel Shaft Ass’y 33T 27. 717-1594 Spur Gear 16T 2. 611-0021 Tine Shaft Ass’y: 18T 28. 721-0378 Seal 1.0 Shaft 3. 611-0128 Jack Shaft Ass’y 29. 721-0379 Seal.75 Shaft 4. 611-0129 Input Shaft Ass’y 31. 726-0277 Taper Cap Ring 5. 617-0058 Rev. Idler Gear Ass’y: 30T 32. 732-0496 Compression Spring.50” Leg. 6. 617-0059 Tine Idler Gear Ass’y: 30T 33.
For Parts Call 606-678-9623 or 606-561-4983 12 67 2 15 12 70 22 60 70 61 5 69 68 10 17 23 19 18 7 1 3 11 60 20 8 14 6 16 4 61 62 34 37 9 64 25 27 30 38 27 39 26 63 21 32 36 33 31 26 46 42 24 29 49 44 26 28 66 30 41 30 44 26 59 40 35 50 51 58 65 71 53 55 56 54 57 16 www.mymowerparts.
For Parts Call 606-678-9623 or 606-561-4983 Ref. Part No. Part Description Ref. Part No. Part Description 1. 747-1152 Shift Rod 35. 786-0090 Shoulder 2. 649-0041 Upper Handle Ass’y 36. 786-0113 Tine Shield Hinge Flap 3. 649-0034 Lower Handle Ass’y 37. 786-0176 RH Handle Bracket 4. 710-3005 Hex Screw 3/8-16 x 1.25 38. 786-0177 LH Handle Bracket 5. 710-3056 Hex Screw 5/16-18 x 3.25 39. 786-0178 Tine Shield 6. 711-0415 Clevis Pin 3/8-1.62 40.
For Parts Call 606-678-9623 or 606-561-4983 18 9 1 1 6 8 6 13 3 1 11 8 40 5 14 4 15 4 0 1 5 16 38 4 35 3 41 43 36 39 34 33 Wheel shaft shown for reference only 31 3 9 18 www.mymowerparts.
For Parts Call 606-678-9623 or 606-561-4983 9 Ref. Part No. Part Description Ref. Part No. Part Description 1. 686-0111 Belt Cover Bracket Ass’y 23. 756-0972 Inner Engine Pulley Half 2. 710-0237 Hex Bolt 5/16-24 x .62” 24. 756-1162 Input Pulley 3. 710-0412 Hex Bolt 1/4-28 x .75” 25. 786-0064A Idler Bracket 4. 710-0520 Hex Washer Screw 3/8-16 x 1.50” 26. 786-0185 Belt Keeper Bracket 5. 710-1039 Hex Bolt 3/8-24 x 1.0 27. 786-0187 Shift Cover Bracket 6.
For Parts Call 606-678-9623 or 606-561-4983 10 Problem Engine fails to start Trouble Shooting Cause 1. Spark plug wire disconnected. 1. Connect wire to spark plug. 2. Fuel tank empty or stale fuel. 2. Fill tank with clean, fresh gasoline. 3. Throttle control lever not in correct starting position (if equipped) 3. Move throttle lever to start position. 4. Choke not in ON position. 5. Clean fuel line. 5. Blocked fuel line. 6. Clean, adjust gap, or replace. 6. Faulty spark plug. 7.
For Parts Call 606-678-9623 or 606-561-4983 MANUFACTURER’S LIMITED WARRANTY FOR The limited warranty set forth below is given by MTD LLC with respect to new merchandise purchased and used in the United States, its possessions and territories. “MTD” warrants this product against defects in material and workmanship for a period of two (2) years commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in materials or workmanship.