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 13

SECTION 13:  TROUBLE SHOOTING GUIDE

Note: For repairs beyond the minor adjustments above, contact your local authorized service dealer.

Trouble

Possible Cause(s)

Corrective Action

Engine fails to 
start

Fuel tank empty, or stale fuel.

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.
Engine flooded.

Fill tank with clean, fresh gasoline. Fuel will not last over 
thirty days unless a fuel stabilizer is used.
Move throttle lever to start position.

Clean fuel line.
Refer to the engine manual packed with your unit.
Move switch to ON position.
Connect wire to spark plug.
Clean, adjust gap or replace.   
Refer to the engine manual packed with your unit.

Engine runs 
erratic

Unit running on CHOKE.
Spark plug wire loose.
Blocked fuel line or stale fuel.

Vent in gas cap plugged.
Water or dirt in fuel system.
Dirty air cleaner.
Carburetor out of adjustment.

Move choke lever to OFF position.
Connect and tighten spark plug wire.
Clean fuel line; fill tank with clean, fresh gasoline. Fuel will 
not last over thirty days unless a fuel stabilizer is used.
Clear vent.
Drain fuel tank. Refill with fresh fuel.
Refer to the engine manual packed with your unit.
Refer to the engine manual packed with your unit.

Engine over-
heats

Engine oil level low.
Dirty air cleaner.
Air flow restricted.
Carburetor not adjusted properly.

Fill crankcase with proper oil.
Refer to the engine manual packed with your unit.
Refer to the engine manual packed with your unit.
Adjust carburetor as instructed in separate engine manual.

Tines do not 
engage

Foreign object lodged in tines.
Tine clevis pin(s) missing.
Pulley and idler not in correct 
adjustment.
Not shifting properly.

Control cable not adjusted properly.
Belt worn and/or stretched.

Dislodge foreign object.
Replace tine clevis pin(s).
Take unit to authorized service dealer.

Refer to controls section of operator’s manual for proper 
shifting procedures.
Adjust control cable (see assembly instructions).
Replace belt.

Wheels do not 
engage

Clevis pin missing.
Tiller is not being shifted properly.

Control cable not adjusted properly.
Belt worn and/or stretched.

Replace clevis pin.
Refer to controls section of operator’s manual for proper 
shifting procedures.
Adjust control cable (see assembly instructions).
Replace belt.

Summary of Contents for 410 Series

Page 1: ...m 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 Califor...

Page 2: ...ler while under the influence of alcohol or drugs Keep the area of operation clear of all persons particularly small children and pets Stop the engine when they are in the vicinity of your tiller Wear...

Page 3: ...s pipes and other sources of ignition Never refuel unit indoors because flammable vapors will accumulate in the area Never store the machine or fuel container inside where there is an open flame or sp...

Page 4: ...h them by calling 1 800 800 7310 Before you call make sure that you have both your model and serial number ready By having the model and serial number ready you help the Customer Support Representativ...

Page 5: ...e shield assembly as shown in Figure 3 4 Insert clevis pin through the tine shield and depth stake assemblies Secure with hairpin clip 5 Insert hex bolt into the top hole of the depth stake assembly P...

Page 6: ...e bracket on the front of the handle assembly use the right hand hole for Model 420 See Figure 7 2 Insert the end of the gear shift rod through the opening in the top of the shift cover and into the s...

Page 7: ...t counterweight is against a solid object such as a wall With the gear selection lever in NEUTRAL start the engine Refer to Operation section NOTE Keep hands out of belt area while unit is operating 2...

Page 8: ...ertain unit is in NEUTRAL when starting the engine CLUTCH HANDLE Bail The clutch handle bail is located beneath the handle See Figure 12 Squeezing the clutch handle against the handle engages the whee...

Page 9: ...gine manual for additional engine information Model 415 1 Place gear selection lever in NEUTRAL 2 Place the engine speed control in the START position 3 Push primer two 2 or three 3 times see Figure 1...

Page 10: ...e the depth stake to the desired setting Secure with the clevis pin and hairpin clip To adjust the side shields remove the wing nuts See Figure 15 Move the side shield to the desired position Replace...

Page 11: ...The control must operate freely in both directions Pivot Points Lubricate all pivot points and linkages at least once a season with light oil Tine Shafts Remove tine assemblies and lubricate the tine...

Page 12: ...orx head screws from the top of belt cover Remove two hex cap nuts and flat washers from front side of the belt cover Remove the hex nut and flat washer at the back of the cover 3 Remove the belt keep...

Page 13: ...an fresh gasoline Fuel will not last over thirty days unless a fuel stabilizer is used Clear vent Drain fuel tank Refill with fresh fuel Refer to the engine manual packed with your unit Refer to the e...

Page 14: ...14 Models 410 415...

Page 15: ...p 32 642 0015 Tine Ass y L H 642 0016 Tine Ass y R H Not Shown 33 786 0090 Side Shield 34 786 0113 Rear Tine Shield 35 686 0044A N End Cover Ass y 36 738 0849 Hex Cap Bolt 5 16 18 x 1 25 38 710 3002 H...

Page 16: ...x Bolt 3 8 24 x 1 Lg 21 736 0217 L Wash 3 8 I D 22 736 0258 Fl Wash 3 8 I D x 1 O D 23 756 0972 Outer Engine Pulley Half 24 756 0971 Inner Engine Pulley Half 25 786 0080 Idler Bracket 26 710 0723 Hex...

Page 17: ...52 Links Endless 28 713 0233 Chain 41 1 2 Pitch x 30 Links Endless 29 686 0038 Gear Case Ass y Half R H 30 736 0541 Fl Wash 7 16 I D x 1 3 8 O D 31 617 0002 Gear and Sprocket Ass y 32 738 0884 Jack Sh...

Page 18: ...18 Model 420...

Page 19: ...d 35 686 0044A N End Cover Ass y 36 738 0849 Hex Screw 5 16 18 x 75 Lg 38 710 0118 Hex Bolt 5 16 18 x 75 Lg 39 710 3097 Carriage Bolt 3 8 16 x 1 Lg 40 712 0798 Hex Nut 3 8 16 Thd 43 712 3004A Hex Fl T...

Page 20: ...Department of MTD PRODUCTS INC Transportation charges Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the purchaser Units exported out of th...

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