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15

SECTION 9:  OFF-SEASON STORAGE

Prepare your lawn mower for storage at the end of the 
season or if the unit will not be used for 30 days or 
more. Store the mower in a clean, dry area.

Gasoline 

Do not store gasoline from one season to another. 
Gasoline, stored more than one month, may affect 
engine performance. 

Replace your gasoline can if it starts to rust. Rust 
and/or dirt in the gasoline will cause problems. 

Engine 

Follow recommendations in the accompanying 
engine manual for off-season storage of the 
engine.

Mower

NOTE: If storing the mower in an unventilated or metal
storage shed, make sure to rustproof the equipment
with a light oil or silicone.

Store unit in a clean, dry area. Do not store next to 
corrosive materials, such as fertilizer or rocksalt.

Clean underside of the mower according to 
instructions on page 12.

NOTE: The use of a pressure washer or garden hose to
clean your mower is NOT recommended. Water may
cause damage to electric components, spindles,
pulleys, bearings or the engine. The use of water will
result in shortened life and reduce serviceability.

Lubricate the mower as instructed on page 12. 

You can fold your mower’s handle for convenience 
of storage. 

Inspect and replace/sharpen blade, if required. 
Refer to page 13.

SECTION 10:  TROUBLE-SHOOTING GUIDE

NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer.

Problem

Possible Cause

Corrective Action

Engine fails to start

1.

Blade control handle disengaged

2.

Spark plug wire disconnected

3.

Fuel tank empty, or stale fuel

4.

Blocked fuel line

5.

Faulty spark plug

6.

Engine flooded

1.

Engage blade control handle

2.

Connect wire to spark plug

3.

Fill up tank with fresh gasoline

4.

Clean fuel line

5.

Clean, adjust gap, or replace

6.

Wait a few minutes and start again.

Engine runs erratic

1.

Spark plug wire loose

2.

Blocked fuel line or stale fuel

3.

Vent in gas cap plugged

4.

Water or dirt in fuel system

5.

Dirty air cleaner

1.

Connect and tighten spark plug wire.

2.

Clean fuel line, fill tank with clean, fresh 
gasoline.

3.

Clear vent.

4.

Drain fuel tank. Refill with fresh fuel.

5.

Clean air cleaner. Refer to engine manual.

Engine overheats

1.

Engine oil level low

2.

Air flow restricted

1.

Fill crankcase with proper oil.

2.

Clean lawn mower engine.

Occasional skip at high 
speed

1.

Spark plug gap too close

1.

Adjust gap to.030 inches.

Idles poorly

1.

Spark plug fouled, faulty, or gap too wide

2.

Dirty air cleaner

1.

Reset gap or replace spark plug.

2.

Clean air cleaner.

Excessive vibration

1.

Cutting blade loose or unbalanced

2.

Bent cutting blade

3.

Bent engine crankshaft

1.

Tighten blade and adapter, balance blade.

2.

Replace blade.

3.

Contact your nearest service center

Fails to mulch grass 

1.

Wet grass

2.

Excessively high grass

3.

Dull blade

1.

Wait until grass is dry to cut.

2.

Mow once at a high cutting height, then 

mow again at desired height. 

3.

Sharpen or replace blade.

Uneven cut

1.

Wheels not in same height position

2.

Dull blade

1.

Reposition all wheels at same height.

2.

Sharpen or replace blade.

Содержание 437

Страница 1: ...eting 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 Secti...

Страница 2: ...plained below For future reference please copy the model number and the serial number of the equipment in the space below ENGINE INFORMATION The engine manufacturer is responsible for all engine relat...

Страница 3: ...ne in bare feet sandals slippery or light weight e g canvas shoes 8 Do not put hands or feet near rotating parts or under the cutting deck Contact with the blade can amputate hands and feet 9 A missin...

Страница 4: ...d fall can cause serious personal injury If you feel you are losing your balance release the blade control handle immediately and the blade will stop rotating within 3 seconds Do Not 1 Do not mow near...

Страница 5: ...equipment manufacture s O E M blade only listed in this manual Use of parts which do not meet the original equipment specifications may lead to improper performance and compromise safety 4 Mower blade...

Страница 6: ...LY Do not mow on inclines with a slope in excess of 15 degrees a rise of approximately 2 1 2 feet every 10 feet A riding mower could overturn and cause serious injury If operating a walk behind mower...

Страница 7: ...laced on top of the unit Remove it from the unit and set it out of the way See Figure 2 Figure 2 Raise the lower handle as shown in Figure 2 until it snaps into place Raise the upper handle as shown i...

Страница 8: ...before shipping proceed to the next section If it is unassembled follow the steps below Insert frame into grass bag with the black plastic side on the bottom of bag See Figure 7 Figure 7 Slip the side...

Страница 9: ...e the illustrations in Figure 11 with your lawn mower to familiarize yourself with the location of various controls and adjustments Figure 11 Blade Control Handle The blade control handle is located o...

Страница 10: ...l cap on the end of the spark plug wire is fastened securely over the metal tip on the spark plug Starting Engine Push the primer three times Wait two seconds between each push In temperatures below 5...

Страница 11: ...ect in the bag as you run mower Operate mower till the grass bag is full Stop the engine completely by releasing the control handle Make sure that the unit has come to a complete stop Lift discharge d...

Страница 12: ...e a season or every 50 hours of operation Inspect muffler periodically and replace if necessary Damaged mufflers or spark arresters can create a fire hazard IMPORTANT Make sure to avoid muffler and su...

Страница 13: ...screwdriver See Figure 14 Remove metal from the heavy side until it balances evenly It is recommended that the blade always be removed from the adapter for the best test of balance Figure 14 Before re...

Страница 14: ...clips in the inner holes of the weld pins and replace the carriage bolts and wing nuts on the handle brackets Attach the starter rope as instructed in the Assembling Your Lawn Mower section Adjusting...

Страница 15: ...e Cause Corrective Action Engine fails to start 1 Blade control handle disengaged 2 Spark plug wire disconnected 3 Fuel tank empty or stale fuel 4 Blocked fuel line 5 Faulty spark plug 6 Engine floode...

Страница 16: ...ARTS LIST FOR MODEL 437 1 6 10 3 2 11 4 5 4 19 35 33 32 29 30 51 41 40 46 24 22 21 20 25 42 44 44 12 31 31 30 29 28 26 27 44 44 49 43 18 36 38 45 48 34 14 13 37 39 25 52 47 16 23 7 8 9 12 15 55 54 53...

Страница 17: ...ont Spring Lever 29 738 0507B Shld Bolt 5 Dia x 357 30 736 0105 Bell Washer 38 I D x 88 O D 31 738 0102 Front Axle Bolt 32 720 0426 Spring Lever Knob 33 732 0417A Rear Spring Lever 34 14578 Height Adj...

Страница 18: ...such as lubricants filters blade sharpening tune ups brake adjustments clutch adjustments deck adjustments and normal deterioration of the exterior finish due to use or exposure d MTD LLC does not ext...

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