Craftsman WEEDWACKER INCREDI.PULL 316.791020, Operator'S Manual

6

STARTING/ STOPPING INSTRUCTIONS

USING THE ELECTRIC STARTER OR POWER START BIT 

ACCESSORY TO START UNIT

NOTE:

This Unit Can Use an Power Start or Power Start Bit Optional 
Accessory!

Please refer to the Power Starter or Power Start Bit operator’s 
manual for proper use of these features. (Items may be Sold 
Separately! Please refer to page 8 of this manual for more 
information about purchasing these accessories.)

STARTING INSTRUCTIONS

1.  Mix fuel with oil. See Oil and Fuel Mixing Instructions.
2.  Fill the fuel tank with fresh, clean fuel mix. Refer to Fueling the Unit.

NOTE:

There is no need to turn the unit on. The On/Off Control is in the 
ON ( I ) position at all times (Fig. 8).

3.  Fully press and release the primer bulb 10 times, slowly. Some amount of 

fuel should be visible in the primer bulb (Fig. 9). If fuel cannot be seen in 
the bulb, press and release the bulb until fuel is visible.

4.  

Flip the choke lever clockwise until it clicks (Fig. 7).

5.  Crouch in the starting position (Fig. 8). Do not squeeze the throttle. Place 

the Plug-In Power Start or Power Bit Start into the back of the unit. Refer 
to the Operation section of the Plug-In Power Start or Power Bit Start 
operator’s manual.

6.  Press and hold the ON (I) button of the Plug-in Power Start or Power Bit 

Start equipped drill in intervals no longer than 4 seconds each until the 
unit starts. 

7.  Wait and allow the unit to idle for 5 - 10 seconds. If the unit stops running 

during this time, squeeze the throttle control, then press and hold the ON 
(I) button of the Plug-in Power Start or Power Bit Start equipped drill in 
intervals no longer than 4 seconds each until the unit starts.

8.  Remove the Plug-In Power Start or drill from the unit.
9.  Squeeze and hold the throttle control for 30 to 60 seconds to allow the 

unit to warm up.

 IF... 

The engine does not start, go back to step 3.  

IF... 

The engine fails to start after a few attempts, squeeze the throttle 
control, then press and hold the Plug-In Power Start or drill ON 
(I) button in intervals no longer than 4 seconds each until the unit 
starts.

STOPPING INSTRUCTIONS

1.  Release the throttle control and allow the engine to cool down by idling.
2.  Press and hold the On/Off Control switch in the OFF (O) position until the 

unit comes to a complete stop (Fig. 8).

 HOLDING THE UNIT

Before operating the unit, stand in the operating position (Fig. 11). Check for 
the following:

• 

The operator is wearing eye protection 
and proper clothing

• 

With a slightly-bent right arm, the 
operator’s hand is holding the shaft grip

• 

The operator’s left arm is straight, the left 
hand holding the D-handle

• 

The unit is at waist level

• 

The cutting head is parallel to the ground 
and easily contacts the grass without the need to bend over

ADJUSTING TRIMMING LINE LENGTH

The Bump Head™ cutting head allows the release of trimming line without 
stopping the engine. To release more line, lightly tap the cutting head on the 
ground (Fig. 12) while operating the unit at high speed.

NOTE:

Always keep the trimming line fully 
extended. Line release becomes 
more diffi cult when the cutting line 
gets shorter.

Each time the head is bumped, about 1 inch 
(25.4 mm) of trimming line releases. A blade in 
the cutting head shield will cut the line to the 
proper length if any excess line is released.
For best results, tap the bump knob on 
bare ground or hard soil. If attempting a line 
release in tall grass, the engine may stall. Always keep the trimming line fully 
extended. Line release becomes more diffi cult when the cutting line gets 
shorter.

NOTE:

Do not rest the Bump Head™ on the ground while the unit is 
running.

Some line breakage will occur from:

• 

Entanglement with foreign matter

• 

Normal line fatigue

• 

Attempting to cut thick, stalky weeds

• 

Forcing the line into objects such as walls or fence posts

TIPS FOR BEST TRIMMING RESULTS

• 

Keep the cutting head parallel to the ground.

• 

Do not force the cutting head. Allow the tip of the line to do the cutting, 
especially along walls. Cutting with more than the tip will reduce cutting 
effi ciency and may overload the engine.

• 

Cut grass over 8 inches (200 mm) by working from top to bottom in small 
increments to avoid premature line wear or engine drag.

• 

Cut from right to left whenever possible. Cutting to the left improves the 
unit’s cutting effi ciency. Clippings are thrown away from the operator.

• 

Slowly move the unit into and out of the cutting area at the desired 
height. Move either in a forward-backward or side-to-side motion. 
Cutting shorter lengths produces the best results.

• 

Trim only when grass and weeds are dry.

• 

The life of the cutting line is dependent upon:

• 

Following the trimming techniques

• 

What vegetation is being cut

• 

Where vegetation is cut

For example, the line will wear faster when trimming against a foundation 
wall as opposed to trimming around a tree. 

DECORATIVE TRIMMING

Decorative trimming is accomplished by 
removing all vegetation around trees, posts, 
fences, etc..
Rotate the whole unit so that the cutting head 
is at a 30° angle to the ground (Fig. 13).

OPERATING INSTRUCTIONS

STOPPING INSTRUCTIONS

1.  Release the throttle control and allow the engine to cool down by idling.
2.  Press and hold the On/Off Control switch in the 

OFF (O)

 position until the 

unit comes to a complete stop (Fig. 8).

Fig. 11

Fig. 12

Fig. 13