Mtd Snow Boss 550 User Manual download pdf (Page 9)

• Move throttle control up to FAST position. Insert

ignition key into slot. See Figure 8. Be certain it

snaps into place. Do not turn the key.

• Rotate choke knob to FULL choke position (cold

engine start). If engine is warm, place choke in

OFF position instead of FULL.

• Electric Start Only: Connect power cord to switch

box on engine. Plug the other end of power cord

into a three-hole, grounded 120 volt AC receptacle.

• Recoil Start Only: Push primer button two or three

times when using recoil starter. If engine is warm,

pushprimerbuttononceonly.SeeFigure8.

NOTE:

Alwayscoverventholeinprimerbuttonwhen

pushing. Additional priming may be necessary for first

start if temperature is below 15

• Electric Start: Do NOT prime engine. Push starter

button on top of the engine to crank the engine.

When engine starts, release starter button.

• Recoil Start: Grasp starter handle (see Figure 8)

and pull rope out slowly, until it pulls slightly harder.

Let rope rewind slowly. Pull starter handle rapidly.

Do not allow handle to snap back. Allow it to rewind

slowly while keeping a firm hold on the starter

handle.

• As engine warms up and begins to operate evenly,

rotate choke knob slowly to OFF position. If engine

falters, return to FULL choke, then slowly move to

OFF position.

To Stop Engine

• Run engine for a few minutes before stopping to

help dry off any moisture on the engine.

• To help prevent possible freeze-up of starter,

proceed as follows:

Electric Starter: Connect power cord to switch box

on engine, then to 120 volt AC receptacle. With the

engine running, push starter button and spin the

starter for several seconds. The unusual sound

made by spinning the starter will not harm engine

or starter. Disconnect the power cord from recepta-

cle first, and then from switch box.

Recoil Starter (Optional Instructions): With

engine running, pull starter rope with a rapid, con-

tinuous full arm stroke three or four times. Pulling

the starter rope will produce a loud clattering

sound, which is not harmful to the engine or

starter.

• To stop engine, remove the ignition key. Do not turn

key. Disconnect the spark plug wire from the spark

plug to prevent accidental starting while equipment

is unattended.

NOTE:

Do not lose ignition key. Keep it in a safe place.

Engine will not start without the ignition key.

• Wipe all snow and moisture from the carburetor

cover in the area of the control levers. Also, move

control levers back and forth several times. Leave

throttle control lever in the STOP or OFF position.

Leave choke control in the FULL choke position.

To Engage Drive

• With the engine running near top speed, move shift

lever into one of the six FORWARD positions or two

REVERSE positions. Select a speed appropriate

for the snow conditions that exist.

NOTE:

Use the slower speeds until you are familiar

with the operation of the snow thrower.

• Squeeze the traction control against the right

handle and the snow thrower will move. Release it

and the drive motion will stop.

IMPORTANT: NEVER move shift lever without first

releasing the traction control. Doing so will cause

premature wear to drive system’s friction wheel rubber.

To Engage Augers

To engage the augers and start the snow throwing

action, squeeze the auger control against the left

handle.

To disengage power to the augers, release both the

auger control and the traction control, if engaged,

NOTE:

The auger control can also be locked so you

can turn the chute directional control without

interrupting the snow throwing process. Refer to

Traction Control/ Auger Control Lock in Section 4 of this

manual.

Tire Chains (Optional Equipment)

Tire chains should be used whenever extra traction is

needed. See your local White Outdoor dealer for

information regarding tire chains and other optional

accessories for your snow thrower.

Operating Tips

NOTE:

Allow the engine to warm up for a few minutes

as the engine will not develop full power until it reaches

operating temperature.

WARNING: Temperature of muffler and

surrounding areas may exceed 150

Avoid these areas.

• Set the skid shoes 1/4" below the shave plate for

normal usage. The skid shoes may be adjusted

upward (to lower the shave plate) for hard-packed

snow. Adjust downward (to raise the shave plate)

whenusingongravelorcrushedrock.

• Remove snow immediately after it falls.

• Discharge snow downwind whenever possible.

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Mtd Snow Boss 550 User Manual Page 9

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