Bolens 600 Series サービスマニュアル

Do not pull the starter handle while the 

engine running.  

To avoid unsupervised engine 

operation, never leave the engine unattended while 

running. Turn the engine off after use and remove 

ignition key

Insert ignition key fully into slot, Figure 5-5. Make sure it 

1. 

snaps into place. DO NOT turn ignition key. The engine 

cannot start unless the key is inserted into ignition switch. 
Move throttle control to FAST (rabbit) position.

2. 

Move choke to the ON position (cold engine start). If engine 

3. 

is warm, place choke in OFF position.
Push primer three to five (3-5) times, making sure to cover 

4. 

vent hole when pushing. If engine is warm, push primer 

only once. Always cover vent hole when pushing. Cool 

weather may require priming to be repeated. 
Pull gently on the starter handle until it begins to 

5. 

resist, then pull quickly and forcefully to overcome the 

compression. Do not release the handle and allow it to 

snap back. Return rope SLOWLY to original position. If 

required, repeat this step.
As the engine warms, slowly rotate the choke control to 

6. 

OFF position. If the engine falters, restart engine and run 

with choke at half-choke position for a short period of time, 

and then slowly rotate the choke into OFF position.

To avoid unsupervised engine 

operation, never leave the machine unattended 

with the engine running. Turn the engine off after 

use and remove ignition key

Run engine for a few minutes before stopping to help dry off any 
moisture on the engine.

Move throttle control to STOP position.

1. 

Remove the ignition key. Removing the key will reduce the 

2. 

possibility of unauthorized starting of the engine while 

equipment is not in use. Keep the key in a safe place. The 

engine cannot start without the ignition key.
Wipe any moisture away from the controls on the engine.

3. 

With the throttle control in the Fast (rabbit) position, move 

1. 

shift lever into one of the six forward (F) positions or two 

reverse (R) positions. Select a speed appropriate for the 

snow conditions and a pace you’re comfortable with. 
Squeeze the drive control against the handle the snow 

2. 

thrower will move. Release it and drive motion will stop.

To engage the augers and start throwing snow, squeeze 

1. 

the auger control against the left handle. Release to stop 

the augers.

The augers are secured to the spiral shaft with two shear pins 

and cotter pins. If the auger should strike a foreign object or ice 

jam, the snow thrower is designed so that the pins may shear. If 

the augers will not turn, check to see if the pins have sheared. 

See Fig. 5-3.

NEVER replace the auger shear pins with 

anything other than OEM Part No. 738-04124A 

replacement shear pins. Any damage to the auger 

gearbox or other components as a result of failing to 

do so will NOT be covered by your snow thrower’s 

warranty.

Always turn off the snow thrower’s 

engine and remove the key prior to replacing shear 

pins.