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MTD 390 Series Operator's Manual
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MTD 390 Series Operator's Manual

MTD 390 Series Operator's Manual

Front tine tiller
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Download this manual See also: Owner's Manual
Safe Operation Practices • Set-Up • Operation • Maintenance • Service • Troubleshooting • Warranty
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Front Tine Tiller — Model Series 390
WARNING
READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL
BEFORE ATTEMPTING TO OPERATE THIS MACHINE.
FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Printed In USA
Form No. 769-09650
(January 9, 2014)

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Summary of Contents for MTD 390 Series

  • Page 1 Safe Operation Practices • Set-Up • Operation • Maintenance • Service • Troubleshooting • Warranty ’ peratOr anual Front Tine Tiller — Model Series 390 WARNING READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL BEFORE ATTEMPTING TO OPERATE THIS MACHINE.

  • Page 2: Table Of Contents

    Visit us on the web at www.mtdproducts.com See How-to Maintenance and Parts Installation Videos at www.mtdparts.com/KnowledgeCenter ◊ Call a Customer Support Representative at (800) 800-7310 or (330) 220-4683 ◊ Write to MTD LLC • P.O. Box 361131 • Cleveland, OH • 44136-0019...

  • Page 3: Important Safe Operation Practices

    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 this machine. Failure to comply with these instructions may result in personal injury.
  • Page 4 When practical, remove gas-powered equipment After striking a foreign object, stop the engine, disconnect from the truck or trailer and refuel it on the ground. the spark plug wire and ground against the engine. If this is not possible, then refuel such equipment on Thoroughly inspect the machine for any damage.
  • Page 5 Spark Arrestor If the fuel tank has to be drained, do this outdoors. Observe proper disposal laws and regulations for gas, oil, WARNING! This machine is equipped with an etc. to protect the environment. internal combustion engine and should not be used According to the Consumer Products Safety Commission on or near any unimproved forest-covered, (CPSC) and the U.S.
  • Page 6 Safety Symbols This page depicts and describes safety symbols that may appear on this product. Read, understand, and follow all instructions on the machine before attempting to assemble and operate. Symbol Description READ THE OPERATOR’S MANUAL(S) Read, understand, and follow all instructions in the manual(s) before attempting to assemble and operate WARNING—...

  • Page 7: Assembly & Set-Up

    Assembly & Set-Up Contents of Carton • One Tiller • One Handlebar Assembly • One Depth Gauge Assembly • One Operator’s Manual • One Engine Operator’s Manual • One 20 oz. Bottle SAE30 Oil Assembly Hook the “Z” end of the reverse clutch cable (B) into the reverse tine engagement lever Figure 3-2.
  • Page 8 Tighten the bolt securely after securing the handle brace as Insert the depth stake assembly into the frame and reinstall seen in Figure 3-4. the two screws removed earlier. Tighten the hex bolts securely. See Figure 3-6. Carriage Bolt Depth Stake Assembly Screws Bell Washer...
  • Page 9 Clutch Cables Adjustment Before operating the tiller the adjustment of the forward and reverse drive cables must be checked. Disconnect and ground the spark plug wire against the engine. Adjust either the forward or reverse clutch cable by loosening the hex nut. See Figure 3-8. Cable Collar Hex Nut Figure 3-8...
  • Page 10 Controls & Features Reverse Tine Engagement Lever Handle Forward Tine Engagement Lever Handle Knob Depth Gauge End Cap Tiller Tines Depth Gauge Engine Controls The depth gauge controls the tilling depth. See the separate Engine Operator’s Manual for information and Tines &...

  • Page 11: Operation

    Operation Starting & Stopping the Engine Yoke Back Place the wheel yoke so that the wheels are toward the rear — closest WARNING! Read, understand, and follow all the to depth stake — for deep tilling and cultivating. See Figure 5-2. instructions and warnings posted on the machine and in this manual before operating.
  • Page 12 Handle Pressure Cultivating Procedures Further control of the tilling depth and travel speed can be For cultivating, a two to three inch depth is desirable. The tine obtained by variation of pressure on the handles. width can be reduced to 13 inches by removing the outer tines completely from the tiller.

  • Page 13: Maintenance & Adjustment

    Maintenance & Adjustments Tines WARNING! Disconnect the spark plug wire and With the outer tines installed, the working width of the machine ground it against the engine before performing any is 24”. This width may be expanded to 26” by removing the clevis repairs.
  • Page 14 Off-Season Storage When the tiller won’t be used for an extended period, prepare it for storage as follows: Clean the tiller and engine. Do routine tiller lubrication and check for loose parts and hardware. Change the engine oil and filter following the instructions provided in the engine manual packed with this manual.

  • Page 15: Service

    Service Belt Replacement To reassemble the new belt, follow the instructions in reverse order. Be sure to place the wider side of the belt against the transmission and the idler pulley while the Reverse Drive Belt slimmer side goes over the engine pulley. See Figure 7-2. Your tiller has been engineered with a belt made of special NOTE: Upon reassembly, make certain the belt is routed material (Kevlar Tensile) for longer life and better performance.
  • Page 16 The forward idler belt will not clear the belt keepers near the engine pulley. You must remove the reverse idler bracket to allow the belt to move off of the engine pulley. Remove the two securing screws and move the bracket toward the transmission pulley.

  • Page 17: Troubleshooting

    Troubleshooting Problem Cause Remedy Tines do not engage 1. Foreign object lodged in tines 1. Dislodge foreign object 2. Tine clevis pin(s) missing 2. Replace tine clevis pin(s) 3. Pulley and idler not in correct adjustment 3. Take tiller to authorized service dealer 4.

  • Page 18: Replacement Parts

    Replacement Parts Component Part Number and Description 642-0002 Inner Right Hand Tine 642-0003 Inner Left Hand Tine 642-0023 Outer Left Hand Tine 642-0024 Outer Right Hand Tine 714-04043 Cotter Pin 911-0415 Clevis Pin 954-0428 Forward V-Belt, 954-0429 Reverse V-Belt 946-0918 Forward Cable 946-0953 Reverse Cable...
  • Page 19 Notes...

  • Page 20: Warranty

    MANUFACTURER’S LIMITED WARRANTY FOR The limited warranty set forth below is given by MTD LLC with Routine maintenance items such as lubricants, filters, blade respect to new merchandise purchased and used in the United sharpening, tune-ups, brake adjustments, clutch adjustments,...