11
ENGLISH
To Install the Battery Pack into the Tool
1.  Align the battery pack 
13
 with the rails inside the tool 
(Fig.C).
2.  Slide it into the tool until the battery pack is firmly seated 
and ensure that you hear the lock snap intoplace.
To Remove the Battery Pack from the Tool
1.  Press the release button 
14
 and firmly pull the battery pack 
out of the toolhandle (Fig. F).
2.  Insert battery pack into the charger as described in the 
charger section of thismanual.
 Fuel Gauge Battery Packs (Fig. F)
Some STANLEYFATMAX battery packs include a fuel gauge 
which consists of three green LED lights that indicate the level of 
charge remaining in the batterypack.
To actuate the fuel gauge, press and hold the fuel gauge 
button
25
. A combination of the three green LED lights will 
illuminate designating the level of charge left. When the level of 
charge in the battery is below the usable limit, the fuel gauge 
will not illuminate and the battery will need to berecharged.
NOTE: The fuel gauge is only an indication of the charge left on 
the battery pack. It does not indicate tool functionality and is 
subject to variation based on product components, temperature 
and end-userapplication.
Attaching Guard (Fig. B, C)
 
WARNING: Never remove the guard. Damage 
or personal injury couldresult.
 
WARNING: NEVER OPERATE APPLIANCE 
WITHOUT GUARD FIRMLY IN PLACE. The guard must 
always be properly attached on the appliance to protect 
theuser.
1.  Remove the guard screws 
 16 
.
2.  Slide the guard 
 11 
 fully onto the trimmer head 
 8 
. Make 
sure the tabs on the guard engage the ribs on the trimmer 
head.
3.  Continue to slide the guard on until it “snaps”into place. The 
locking tab should snap into the housing slot.
4.  Using a crosshead screwdriver, insert the guard screw and 
tighten securely.
5.  Once the guard is installed, remove the covering from the 
line cut-off blade, located on the edge of the guard.
Attaching the Auxiliary Handle (Fig. D)
For some models the auxiliary handle may need to be attached.  
If the model needs the auxiliary handle attached, please refer to 
these instructions.
1.  To attach the auxiliary handle 
 5 
, press in on the auxiliary 
handle adjustment buttons 
 15 
 on both sides of the upper 
housing as shown in Figure D. 
2.  Position the auxiliary handle as shown in Figure D . Partially 
push the auxiliary handle on so it will hold the buttons in 
when you release them with your hand. 
3.  Push the auxiliary handle completely onto the housing and 
position it slightly until it “snaps” into place.
NOTE: To adjust the auxiliary handle up or down, press in on the 
buttons and raise or lower the handle. 
NOTE: The handle should be adjusted so that your front arm is 
straight when the trimmer is in the working position.
Height Adjustment (Fig. E)
 
CAUTION: Adjust the length of the trimmer to 
obtain proper working positions.
1.  The overall height of the trimmer can be adjusted by 
loosening the height-adjust collar 
 6 
 by rotating it in the 
direction of the arrow shown in Figure E. 
2.  Move the upper housing straight up or down. When the 
desired height is achieved, tighten the collar by rotating it 
opposite of the direction shown in Figure E.
Releasing the Cutting Line (Fig. A) 
In transit, the cutting line is taped to the spool housing 
 10 
.
•  Remove the tape holding the cutting line to the 
spoolhousing.
OPERATION
Instructions for Use
 
WARNING: Always observe the safety 
instructions and applicableregulations.
 
WARNING: To reduce the risk of serious 
personal injury, turn tool off and disconnect battery 
pack before making any adjustments or removing/
installing attachments or accessories. An accidental 
start-up can causeinjury.
Proper Hand Position (Fig. A, I)
 
WARNING: To reduce the risk of serious 
personal injury, ALWAYS use proper hand position 
asshown.
 
WARNING: To reduce the risk of serious 
personal injury, ALWAYS hold securely in anticipation of a 
suddenreaction.
Hold the handle 
4
 with one hand. as shown in figure I
Switching Trimmer On and Off (Fig. A)
 
WARNING: Never attempt to lock the trigger 
in the onposition.
To turn the appliance on, squeeze the lock-off button 
2
  and 
then the On/Off trigger 
1
 . Once the unit is running, you may