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7

SECTION 3:  ASSEMBLING YOUR LAWN MOWER

Removing Unit From Carton

Remove staples, break glue on top flaps or cut tape 
at carton end and peel top flap to open carton.

Remove loose parts if included with unit.

Cut corners and lay carton down flat. Remove 
packing material.

Roll or slide unit out of carton. Check carton 
thoroughly for loose parts.

NOTE: Make sure not to crimp cables while removing
the loose parts or the entire unit from the carton.

Hardware Pack

Please identify each piece 
of the hardware pack as 
shown here.

Tools Required 

Pair of Pliers 

Funnel 

NOTE: Reference to right or left hand side of the mower
is observed from the operating position.

Disconnecting Spark Plug

Before setting up your lawn mower, disconnect the 
spark plug wire from the spark plug, and ground it to 
retaining post on the engine. See Figure 1.

Figure 1            

Assembling Handle

For shipping purposes, the grass bag was placed 
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 in Figure 2 . 

Tighten the two wing nuts which are already on the 
handle. See Figure 3 .

Figure 3

NOTE: Make sure to route the cables outside the lower
handle. Also do not crimp the cables while lifting the
handle up.

Remove the hairpin clips from the outer hole in the 
weld pins on the handle bracket assemblies. Using 
a pair of pliers, squeeze one leg of the lower handle 
against the handle bracket assemblies. Insert the 
hairpin clip into the inner hole on the weld pin. 
Repeat on other side. See Figure 4.

After you have moved the hairpin clip, install the 
carriage bolt, (carriage bolt must go to the inside of 
handle) included in the hardware pack, in the upper 
hole on the handle mounting bracket. Secure with 
one plastic wing nut, also included in the hardware 
pack. See Figure 4.Repeat process on other side.

Wing 

Carriage 

1/4-20 (2)

1/4-20 (2)

Bolt 

Nut 

Tighten these 
wing nuts

Lower 
Handle

Upper 
Handle

Summary of Contents for 437

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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