OPERATOR’S MANUAL Front Tine Tiller Model 393 IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forestcovered, 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.
TABLE OF CONTENTS Content Page Important Safe Operation Practices................................................................... 3 Assembling Your Tiller....................................................................................... 5 Know Your Tiller................................................................................................. 7 Operating Your Tiller.......................................................................................... 8 Making Adjustments ..............
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 this machine. Failure to comply with these instructions may result in personal injury. When you see this symbol— heed its warning.
9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. Look down and behind and use care when in reverse or pulling machine towards you. Start the engine according to the instructions found in this manual and keep feet well away from the tines at all times. 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.
SECTION 2: ASSEMBLING YOUR TILLER NOTE: References to right or left side of the tiller are determined from behind the unit in the operating position. Hand Knob Handle Brace Spark Plug Hex Lock Nut Removing Unit From Carton • • • • • • Remove staples, break glue on top flaps, or cut tape at carton end and peel along top flap to open carton. Remove all loose parts included with unit (i.e., operator’s manual, etc.) Cut corners and lay carton down flat. Remove packing material.
Attaching Clutch Control Cable(s) Forward Cable Attach the end of the forward cable to the bracket underneath the handle assembly as follows. 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 end of the cable, and move it up the rod as far as it will go. Unthread the rod from the rest of the cable. Hook the “Z” end of the rod into the bracket underneath the handle assembly from the right hand side.
SECTION 3: KNOW YOUR TILLER Reverse Tine Drive Clutch Lever WARNING: Read, understand, and follow all instructions and warnings on the machine and in this manual before operating. The reverse tine drive clutch lever is located on top of the handle panel. Pull the lever to the rear to move the tines in reverse. Release the lever to stop the reverse tine drive. See Figure 6 Throttle Control NOTE: Never engage both the forward and reverse tine drives at the same time.
SECTION 4: OPERATING YOUR TILLER Gas and Oil Fill up • Service the engine with gasoline and oil as instructed in the separate engine manual packed with your tiller. Read instructions carefully. Using Your Tiller Starting Engine Your tiller is a precision built machine designed for seed bed preparation, cultivating, furrowing and mulching.
Removing End Caps Transport Position 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. See Figure 8. Depth Stake Shallow Tilling Wheel Setting For Deep Tilling End Cap Deep Tilling Figure 10 Clevis Pin By increasing the depth of the depth stake, the forward speed of the machine is reduced and the working depth is increased.
Handle Pressure passes across its width. The addition of decayed organic matter will substantially increase the fertility of your garden. For proper decaying action, fertilizer should be applied and worked in with the mulch materials. Breaking up leaves and straw and mixing it with several inches of soil causes the soil to hold moisture longer and allows proper aeration of the plant root system. This also retards the growth of weeds.
SECTION 5: MAKING ADJUSTMENTS WARNING: Disconnect the spark plug wire and ground it against the engine before performing any adjustments. Engine Adjustment Refer to the separate engine manual for engine adjustment instructions. 22” Wheel Adjustments To adjust the wheel yoke and wheel position, refer to the Operating Section. Clutch Control Adjustments To adjust the clutch controls, refer to the Final Adjustment section of assembly instructions.
Cleaning Tine Area • 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. Always towel dry the tiller afterwards and apply a light coat of oil or silicone to prevent rusting or water damage. Remove the hex nut which secures the reverse idler pulley to the idler bracket. Slide idler pulley out and remove the belt. See Figure 15.
Off-Season Storage Transmission Pulley Reverse Idler Pulley If the tiller will not be used for a period longer than 30 days, the following steps should be taken to prepare the tiller for storage. • • Engine Pulley • Forward Belt Idler Pulley Nut • • Figure 16 • Be certain to adjust the clutch control as instructed in the final clutch adjustment section of assembly instructions. Clean the exterior of engine and the entire tiller thoroughly.
Model 390 3 6 1 4 10 9 2 11 5 12 7 13 2 8 14 17 19 15 16 20 21 18 22 49 29 30 35 28 27 26 31 32 36 23 37 42 38 34 37 25 33 30 40 24 39 41 45 30 43 46 44 47 48 14
Model 390 REF. NO. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16 17. 18. 19. 20. 21. 22. 23. 24. 25. PART NO. 712-0442 736-3020 720-0270A 731-1600 710-0779A 720-0274 712-0287 726-0135 686-0083 720-0269 710-0641 731-1645A 736-0140 686-0014A 736-0264 649-0022B 710-1236 720-0195 749-1082 712-3004A 736-0242 786-0005 714-0149B 712-3004A 786-0003 REF. NO. DESCRIPTION 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. Acorn Lock Nut 1/4-20 Flat Washer .
Model 390 26 25 24 24 23 48 13 30 12 29 31 49 27 32 28 34 35 36 42 33 40 39 45 38 14 50 22 41 15 9 10 51 8 44 6 43 7 11 4 47 5 46 1 16 2 19 20 3 21 17 18 16
Model 390 REF. NO. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. PART NO. 712-0392 736-3020 710-0599 711-0920 712-3004A 710-0723 756-0313 786-0149 786-0144 712-0266 786-0057 710-0599 786-0043A 710-3008 712-3004A 686-0091 686-0106 714-0149B 711-0415 642-0023 642-0024 642-0003 642-0002 746-0918 746-0953 756-0585 REF. NO. DESCRIPTION Hex L-Stop nut 1/4-28 Flat Wash. .266” I.D. x .625” O.D. Hex Washer TT-Tap Scr. 1/4-20 x .
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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.