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This unit does not have a clutch. The cutting
attachment continues to rotate when the engine
is idling. To prevent injury, have the unit adjusted
by an authorized service technician.

Adjust the D-Handle to your size to provide the
best grip.

Be sure the cutting attachment is not in contact
with anything before starting the unit.

Use the unit only in daylight or good artificial
light.

Avoid accidental starting. Be in the starting posi-
tion whenever pulling the starter rope. The opera-
tor and unit must be in a stable position while
starting. See Starting/Stopping Instructions.

Use the right tool. Only use this tool for the pur-
pose intended.

Do not overreach. Always keep proper footing
and balance.

Always hold the unit with both hands when oper-
ating. Keep a firm grip on both the front and rear
handle or grips.

Keep hands, face, and feet at a distance from all 
moving parts. Do not touch or try to stop the cut-
ting attachment when it is rotating.

Do not touch the engine, gear housing or muffler.
These parts get extremely hot from operation.
When turned off they remain hot for a short time.

Do not operate the engine faster than the speed 
needed to cut, trim or edge. Do not run the
engine at high speed when not cutting.

Always stop the engine when cutting is delayed
or when walking from one cutting location to
another.

If you strike or become entangled with a foreign
object, stop the engine immediately and check
for damage. Do not operate before repairing dam-
age. Do not operate the unit with loose or dam-
aged parts.

Stop and switch the engine to off for mainte-
nance, repair, or for changing the cutting attach-
ment or other attachments.

Use only replacement parts and accessories
approved by the manufacturer for this unit. These
are available from your authorized service dealer.
Use of any non approved parts or accessories
could lead to serious injury to the user, or damage
to the unit, and void your warranty.

Keep unit clean of vegetation and other materials.
They may become lodged between the cutting 
attachment and shield.

To reduce fire hazard, replace faulty muffler and
spark arrestor, keep the engine and muffler free
from grass, leaves, excessive grease or carbon
build up.

OTHER SAFETY WARNINGS

Never store the unit, with fuel in the tank, inside a
building where fumes may reach an open flame or
spark.

Allow the engine to cool before storing or trans-
porting. Be sure to secure the unit while trans-
porting.

Store the unit in a dry area, locked up or up high 
to prevent unauthorized use or damage, out of
the reach of children.

Never douse or squirt the unit with water or any
other liquid. Keep handles dry, clean and free
from debris. Clean after each use, see Cleaning
and Storage instructions.

Keep these instructions. Refer to them often and
use them to instruct other users. If you loan
someone this unit, also loan them these instruc-
tions.

SAVE THESE INSTRUCTIONS

WARNING – YOUR RESPONSIBILITY:

Restrict the use of this power machine to persons

who read, understand and follow the warnings and instructions in this manual and on the machine.

WARNING - READ OPERATOR'S MANUAL

Read the Operator’s Manual(s) and follow all warnings and safety instructions. 
Failure to do so can result in serious injury to the operator and/or bystanders.

WEAR EYE AND HEARING PROTECTION

Thrown objects and loud noise can cause severe eye injury and hearing loss. Wear eye protection
meeting ANSI Z87.1 standards and ear protection when operating this unit.

KEEP BYSTANDERS AWAY

Keep all bystanders, especially children and pets, at least 50 feet (15 m) from the operating area. 

Summary of Contents for 41AD-280G000

Page 1: ...ark arrester is used it should be maintained in effective working order by the operator In the State of California the above is required by law Section 4442 of the California Public Resources Code Oth...

Page 2: ...help from our Customer Support Department or an authorized dealer You can locate the model number by looking on the bottom side of the shaft housing next to the shaft grip A sample model plate is exp...

Page 3: ...area of children bystanders and pets At a mini mum keep all children bystanders and pets out side a 50 feet 15 m radius there still may be a risk to bystanders from thrown objects Bystanders should w...

Page 4: ...ories approved by the manufacturer for this unit These are available from your authorized service dealer Use of any non approved parts or accessories could lead to serious injury to the user or damage...

Page 5: ...from operation When turned off they remain hot for a short time SHARP BLADE WARNING Sharp blade on cutting attachment shield To prevent serious injury do not touch line cutting blade DO NOT USE BLADES...

Page 6: ...See Figure 2 5 Tighten the wing nut until the D handle is secure SECTION 2 ASSEMBLING YOUR TRIMMER Installing the Cutting Attachment Shield Use the following instructions if the cutting attach ment s...

Page 7: ...on and off The switch must be in the START position to start the unit See Figure 5 Choke Control The choke control is located above the air filter muffler cover It is used to enrich the fuel mixture w...

Page 8: ...to the unit s fuel tank CAUTION For proper engine operation and maximum reliability pay strict attention to the oil and fuel mixing instructions on the 2 cycle oil container Using improperly mixed fu...

Page 9: ...rmally 2 to 5 pulls NOTE Squeeze the throttle control until the engine has started and warmed up 6 Place the choke lever in the PARTIAL choke position B See Figure 8 NOTE The unit will not run in the...

Page 10: ...Line Length The Bump Head cutting attachment allows you to release trimming line without stopping the engine To release more line lightly tap the cutting attachment on the ground while operating the t...

Page 11: ...0 mm by working from top to bottom in small increments to avoid premature line wear or engine drag Cut from left to right whenever possible Cutting to the right improves the unit s cutting efficiency...

Page 12: ...e idle speed adjuster Refer to MAINTAINING YOUR TRIMMER in Section 6 Adjusting Idle Speed WARNING This unit will need to be running during idle speed adjustment Wear protective clothing and observe al...

Page 13: ...e 15 4 Wash the filter in detergent and water Rinse the filter thoroughly Squeeze out excess water Allow it to dry completely 5 Apply enough clean SAE 30 oil to lightly coat the filter See Figure 16 6...

Page 14: ...12 3 13 5 N m Do not over tighten 0 020 inch 0 5 mm Line Installation This section covers both SplitLine and standard single line installation Always use manufacturer s 0 080 inch 2 03 mm replacement...

Page 15: ...e See Figure 23 Proceed to step 11 SplitLine Installation 8 Take approximately 12 feet 3 65 m of new trim ming line Insert one end of the line through one of the two holes in the inner reel Pull the l...

Page 16: ...ert the ends of the line through the eyelets in the outer spool and place inner reel with spring inside the outer spool See Figure 26 Push the inner reel and outer spool together While holding the inn...

Page 17: ...lled Not enough line is exposed Turn the On Off Stop Control to START Fill fuel tank Press primer bulb fully and slowly 5 7 times Use starting procedure with choke control in the RUN position Drain fu...

Page 18: ...18 SECTION 9 PARTS LIST FOR MODEL 41AD 280G000 42 1 2 3 8 10 12 3 4 5 7 6 11 13 15 16 47 48 43 14 22 49 20 17 18 19 21 26 27 28 31 32 30 33 34 36 37 38 35 25 32 39 40 46 41 44 42 45 24 29 23 9...

Page 19: ...Assembly 27 610303 Square Nut Drive 28 181597 Recoil Pulley Assembly 29 613102 Recoil Spring 30 611061 Rope Guide 31 181889 Pulley Retainer Assembly 32 182827 Switch Assembly includes 39 33 181079 Pul...

Page 20: ...20 MODEL 41AD 280G000 10 8 13 9 17 16 18 19 15 11 12 14 1 1 5 6 7 4 3 2...

Page 21: ...using Assembly with Spool Shaft 12 145569 Anti Rotation Screw 13 683274 Shield and Blade Assembly includes 14 14 682061 Blade Assembly 15 153619 Outer Spool and Eyelet Assembly includes 16 16 610660 R...

Page 22: ...MTD SOUTHWEST INC MTD with respect with new merchandise purchased and used in the United States its possessions and territories MTD warrants this product against defects in material and workmanship fo...

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