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OPERATING INSTRUCTIONS

10

TO ADJUST TRIMMING LINE LENGTH

Your trimmer is equipped with a bump head,
which allows the operator to release more
trimming line without stopping the motor. As 
the line becomes frayed or worn, additional 
line can be released by lightly tapping the
trimming head on the ground (Fig. 10) while
operating the trimmer.

NOTE:

Always keep the trimming line fully
extended. Line release becomes 
more difficult as cutting line 
becomes shorter.

WARNING:

Do not remove or alter

the line cutting blade assembly.
Excessive line length will cause the
motor to overheat and may result in
serious personal injury.

Each time the head is bumped, approximately
1 inch (25.4 mm) of trimming line is released. 
A blade in the string guard will cut the line if
excess line is released.

For best results, tap the head on bare ground or
hard soil. If line release is attempted in tall grass,
the motor may overheat. Always keep the
trimming line fully extended. Line release
becomes more difficult as the cutting line
becomes shorter.

DECORATIVE TRIMMING

Decorative trimming is accomplished by
removing all vegetation around trees, posts,
fences, etc. Use a 30-degree angle when
trimming with this method (Fig. 11).

Fig. 10

Fig. 11

TIPS FOR BEST TRIMMING RESULTS

1. The correct angle for the cutting attachment

is parallel to the ground.

NOTE:

Do not rest the bump head on 
the ground.

2. DO NOT FORCE THE UNIT. Allow the very

tip of the line to do the cutting (especially
along walls). Cutting with more than the 
tip will reduce cutting efficiency and may
overload the motor.

3. Grass over 200 mm (8 in.) should be cut by

working from top to the bottom in small
increments to avoid premature line wear or
motor drag.

4. Whenever possible, cut right to left. When

cutting to the left, the unit's cutting efficiency
is improved slightly. Also, the clippings are
thrown away from the operator.

5. Slowly move the trimmer into and out of the

area being cut, maintaining the trimmer at
the desired cutting height. This can be either
a forward-backward or side-to-side motion.
Cutting shorter lengths produces best
results.

6. Trim only when grass and weeds are dry.

7. The life of your cutting line is dependent

upon following the previous trimming
techniques, what is being cut, and where 
the cutting is being done. For example, the
line will wear faster when trimming against 
a foundation wall as opposed to trimming
around a tree. 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

fenceposts.

Summary of Contents for 150r

Page 1: ...FOR QUESTIONS CALL 1 800 345 8746 in U S or 1 800 265 6778 in CANADA www ryobi com IMPORTANT MANUAL DO NOT THROW AWAY OPERATOR S MANUAL 12 Volt Battery Trimmer 150r...

Page 2: ...the authorized service dealer nearest you DO NOT RETURN THE UNIT TO THE RETAILER NOTE PROOF OF PURCHASE WILL BE REQUIRED FOR WARRANTY SERVICE Make sure this manual is carefully read and understood bef...

Page 3: ...cation Inspect the unit before use Replace damaged parts Check for battery leaks Make sure all fasteners are in place and secure Replace cutting attachment parts that are cracked chipped or damaged in...

Page 4: ...duce risk of electric shock unplug the charger from outlet before attempting any maintenance or cleaning Do not use charger outdoors WHILE OPERATING To avoid accidental starting never carry your trimm...

Page 5: ...o prevent unauthorized use or damage out of the reach of children Be sure to secure the unit while transporting Never douse or squirt the unit with water or any other liquid Keep handles dry clean and...

Page 6: ...ass and light weeds Decorative trimming around trees fences etc Cutting Attachment Shield THROWN OBJECTS AND ROTATING CUTTER CAN CAUSE SEVERE INJURY WARNING Do not operate without the cutting attachme...

Page 7: ...oor 2 Locate the wall stud and mount the charging station to the wall using the three 3 screws provided Fig 1 Make sure that the screws enter the wall stud to provide a secure mount CAUTION To prevent...

Page 8: ...least 24 hours between uses NOTE The trimmer s operating time and the life of the battery will be shorten if step 3 is not followed 4 Always place the unit back on the charging station after each use...

Page 9: ...igger 3 Release the lock off button Fig 7 Fig 8 Fig 9 Lock Off Button OVERLOAD PROTECTION SWITCH This unit is equipped with an overload protection switch to prevent damage to the motor in the event of...

Page 10: ...method Fig 11 Fig 10 Fig 11 TIPS FOR BEST TRIMMING RESULTS 1 The correct angle for the cutting attachment is parallel to the ground NOTE Do not rest the bump head on the ground 2 DO NOT FORCE THE UNIT...

Page 11: ...m debris at all times LINE INSTALLATION Always use genuine replacement line Using larger line then the unit is designed for may make the motor overheat or fail There are two methods to replace the tri...

Page 12: ...til it snaps into place NOTE Make sure the bump head cover tabs snap into place or the inner reel will come out during operation 4 Check the indexing teeth on the inner reel and outer spool for wear F...

Page 13: ...s in the outer spool and press the cover evenly down until it snaps into place NOTE Make sure the bump head cover tabs snap into place or the inner reel will come out during operation Fig 17 Fig 18 Ba...

Page 14: ...l resources please recycle or dispose of properly THIS PRODUCT CONTAINS A SEALED LEAD ACID BATTERY AND MUST BE DISPOSED OF PROPERLY Local state or federal laws may prohibit disposal of sealed lead aci...

Page 15: ...Off Button Charging Indicator Light Overload Protection Switch Red Wire Positive Black Wires Negative Trigger Switch Charger Connection Motor Wires Housing Tube Motor Wires Trigger Battery Cushions 5...

Page 16: ...t Shield 180293 Replacement Line 610375 Replacement Line Cartridge 182155 Inner Reel Spring 180374 Bump Head Cover 180376 Charger 180294 Charging Station 180295 12 Volt Battery Pack 180624 Motor opera...

Page 17: ...led Lead Acid 12 Volt Motor Wire Housing Tube Aluminum Tube Unit Weight With cutting attachment cutting attachment shield and D handle 10 2 lbs 3 8 kg Cutting Mechanism Bump Head Line Spool Diameter 3...

Page 18: ...its operation performance or durability In addition this warranty does not cover A Wear items Bump Knobs Outer Spools Cutting Line Inner Reels RYOBI reserves the right to change or improve the design...

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