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Operator's Manual
Front Tine Tillers
Models
340 Thru 390
Model 390 Shown
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 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 department, P.O. Box 368022 Cleveland, Ohio 44136-9722.
MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722
FORM NO. 770-10135A.fm
PRINTED IN U.S.A.
(9/99)
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Table of Contents
Related Manuals for Yard Machines 390
Summary of Contents for Yard Machines 390
- Page 1 Operator’s Manual Front Tine Tillers Models 340 Thru 390 Model 390 Shown 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...
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Page 2: Table Of Contents
Content Important Safe Operation Practices... 3, 4 Assembling Your Tiller... 5 Know Your Tiller... 7 Operating Your Tiller... 8 Making Adjustments ... 12 Maintaining Your Tiller ... 13 Off-Season Storage ... 14 Troubleshooting ... 15 Parts List... 16 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. -
Page 3: Important Safe Operation Practices
SECTION 1: IMPORTANT SAFE OPERATION PRACTICES 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. - Page 4 CHILDREN • Tragic accidents can occur if the operator is not alert to the presence of small children. Children are often attracted to the tilling activity. Never assume that children will remain where you last saw them. • Keep children out of the work area and under the watchful eye of a responsible adult other than the operator.
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Page 5: Assembling Your Tiller
NOTE: This operator’s guide covers three different model tillers. Models 340 thru 345 have forward tine drive only. Model 390 has both forward and reverse tine drive. Follow only the instructions which pertain to your model tiller. See the model plate on your tiller for the correct model number. - Page 6 Forward Cable Attach the end of the forward cable to the bracket underneath the handle assembly as follows. (On model 390, the forward clutch cable is the cable which is attached closer to the rear of the tiller). • Loosen the hex nut on the threaded rod near the...
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Page 7: Know Your Tiller
(underneath the handle assembly). If they turn toward the rear (model 390 only), loosen the hex nut on the reverse cable (above the handle assembly). Unthread the rod from the cable 2 or 3 turns. -
Page 8: Operating Your Tiller
Tines And End Caps The tilling tines and end caps (are used to cultivate, furrow, and preapre yoru garden for seeding. The end caps (Model 390 only) are used to avoid tilled soil from overflowing onto unwanted areas. SECTION 4: OPERATING YOUR TILLER... - Page 9 Clip and Clevis Pin Figure 9 Removing End Caps (Model 390 only) The end cap, which are used to avoid tilled soil from overflowing onto unwanted areas, are removable from the outer axle. Remove the hairpin clip and clevis pin that is securing each end cap and slide end cap off the axle.
- Page 10 Controlling Speed And Tilling Depth • Wheel Yoke Adjustment: Place wheel yoke so that the wheels are forward (nearest point between wheels and tines) for shallow tilling, cultivating and transport. The forward speed will increase. Turn yoke around (farthest point between wheels and tines) for deep tilling.
- Page 11 Throttle Control: The throttle control lever adjusts the engine speed and stops the engine. With the throttle control lever pushed completely forward, the carburetor is in START position. Pulling the throttle control back slightly adjusts the engine speed to FAST. Pulling the throttle back further reduces the engine speed to SLOW.
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Page 12: Making Adjustments
SECTION 5: MAKING ADJUSTMENTS WARNING: Disconnect the spark plug wire and ground against the engine before performing any adjustments, repairs, or maintenance. Tine Width Adjustment The tilling width of the unit is 22 inches. See Figure 15. Tilling width can be increased to 24 inches by removing the clevis pins and hairpin clips, sliding the outer tines out one inch, and securing in this position with the clevis pins and hairpin clips. -
Page 13: Maintaining Your Tiller
Forward Drive Belt - Part No. 754-0428 Reverse Drive Belt (390 Only) - Part No. 754-0429 Reverse Drive Belt • Disconnect and ground the spark plug wire against the engine. -
Page 14: Off-Season Storage
• Models 340 thru 345: Remove the belt cover by following steps 1 thru 3 of the previous section. Model 390: Remove the reverse drive belt as instructed in the previous section. • Remove the belt keeper from the idler pulley by removing the idler pulley nut. -
Page 15: Troubleshooting
SECTION 8: TROUBLE SHOOTING GUIDE Trouble Possible Cause(s) Engine fails to Fuel tank empty, or stale fuel. start Throttle control lever not in correct starting position (if so equipped). Blocked fuel line. Dirty aircleaner. Choke not in ON position. Spark plug wire disconnected. Faulty spark plug. -
Page 16: Parts List
Model 340 Thru 345 Standard Briggs & Stratton Tecumseh Engines... - Page 17 Model 340 Thru 345 Ref. Part No. Part Description 712-0442 Acorn Lock Nut 1/4-20 736-3020 Flat Washer .271” I.D. x .630” O.D. 731-1599 Handle Cover 712-0287 Hex Nut 1/4-20 Gr.2 720-0274 Grip-Handle 686-0083 Clutch Handle Assembly 720-0269 Grip-Clutch 710-0641 Hex Bolt 1/4-20 x 2.25” Lg. Gr.5 731-1645A Clutch Handle Holder 736-0140...
- Page 18 Model 340 Thru 345...
- Page 19 Model 340 Thru 345 Ref. Part No. Part Description 712-0392 Hex L-Stop nut 1/4-28 736-3020 Flat Wash. .266” I.D. x .625” O.D. 710-0599 Hex Washer Screw 1/4-20 x .5” 711-0920 Belt Cover Bolt 712-3004A Hex Flange Top L-Nut 5/16-18 710-0723 Hex Hd.
- Page 20 Model 390 Standard Briggs & Stratton Tecumseh Engines...
- Page 21 Model 390 REF. PART NO. DESCRIPTION 712-0442 Acorn Lock Nut 1/4-20 736-3020 Flat Washer .271” I.D. x .630” O.D. 720-0270A Reverse Handle Grip 731-1600 Handle Cover w/o throttle 710-0779A Truss Mach. Scr. #10 x 1/2” Lg. 720-0274 Grip-Handle 712-0287 Hex Nut 1/4-20 Gr.2...
- Page 22 Model 390...
- Page 23 Model 390 REF. PART NO. DESCRIPTION 712-0392 Hex L-Stop nut 1/4-28 736-3020 Flat Wash. .266” I.D. x .625” O.D. 710-0599 Hex Washer TT-Tap Scr. 1/4-20 x .5” 711-0920 Belt Cover Bolt 712-3004A Hex Flange Top L-Nut 5/16-18 (Gr.5) 710-0723 Hex Hd. Scr. 3/8-16 x 1.25” Lg. (Gr.5) 756-0313 Fl-Idler 2.12”...
- Page 24 MANUFACTURER’S LIMITED WARRANTY FOR: The limited warranty set forth below is given by MTD PRODUCTS INC (“MTD”) with respect to new merchan- dise purchased and used in the United States, its posses- sions 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...