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14

Chassis 
cover

Screw

SERVICE AND ADJUSTMENTS

  CAUTION:  Before performing any service and adjustments:

1.   Stop engine.
2.   Make sure the rotating lines and all moving parts have completely stopped.
3.   Disconnect spark plug wire from spark plug and place where it cannot come in con-

tact with plug.

TO REMOVE / REPLACE TRIMMER 
HEAD DRIVE BELT 
1.   Remove screw at front of chassis 

cover.

2.   Lift cover up and away from trimmer.

Engine 

pulley

Debris shield screws

Handle knob

Upper handle

TRIMMER

TO AD JUST TRIMMING HEIGHT
See “TO AD JUST TRIMMING HEIGHT” in 
the Op er a tion sec tion of this manual.

TO ADJUST HANDLE (IF EQUIPPED)
The upper handle may be adjusted to dif-
ferent height positions.
•   Loosen handle knob only enough to 

allow the upper handle to pivot to the 
desired position.

•  Tighten handle knob securely.
NOTE: The handle knob and bolt may be 
reversed for left handed operation.

3.   Remove the two (2) screws on sides of 

trimmer securing the debris shield.

4.   Turn trimmer on its side with car bu re tor 

and fuel cap up.

5.   Remove the two (2) screws on under-

side of trimmer securing the debris 
shield.

6.   Slide the debris shield rearward and 

remove.

7.   Remove belt from engine pulley on 

crankshaft.

TECUMSEH MODELS

BRIGGS & STRATTON MODELS

Debris shield screws

Engine 
pulley

8.   Remove belt from trimmer head pulley.
9.   Note the position of the control cable 

and idler return spring, then remove 
idler assembly from chassis and re-
move belt and idler from trimmer.

10. Remove belt from idler assembly by 

re mov ing bottom belt keeper and idler 
pulleys.

7

HOW TO USE YOUR TRIMMER

ENGINE SPEED
The engine speed is controlled by a 
throttle located on the side of the upper 
handle.  Fast position is for starting and 
normal trimming.  Slow is for light trimming 
and fuel economy.  Stop is for stopping 
the engine.

The operation of any trimmer can result in foreign objects thrown into 
the eyes, which can result in severe eye damage.  Always wear safety 
glasses or eye shields while operating your trimmer or per form ing any 
adjustments or repairs.  We rec om mend a wide vision safety mask over 
spectacles or standard safety glasses.

TRIMMER HEAD DRIVE CONTROL
Your trimmer is equipped with a trim-
mer head drive control bar and lever (if 
equipped) which require the operator to be 
positioned behind the trimmer handle to 
operate the trimmer.
•   Trimmer head rotation is controlled by 

holding the trimmer head control bar 
down to the handle.  If equipped with 
a lever, push the drive control lever 
forward until it clicks; then release the 
lever.

•   Trimmer head rotation will stop when 

the control bar is released.  

STOP

BEFORE STARTING ENGINE

ADD OIL
Your trimmer is shipped without oil in the 
engine. For type and grade of oil to use, 
see the engine maintenance section in 
your engine manual.

  CAUTION: DO NOT overfi ll engine with 

oil, or it will smoke on startup.
1.   Be sure trimmer is level and area 

around oil fi ll is clean.  

2.   Remove oil dipstick from oil fi ll spout.  

Make sure that rim of spout is clean.

Trimmer head control bar

TO ENGAGE 
TRIMMER HEAD

TRIMMER HEAD 

DISENGAGED

Drive control lever 

(if equipped)

TO ADJUST TRIMMING HEIGHT
(IF EQUIPPED)

 CAUTION:  Stop the engine and wait 

for all moving parts to stop. Disconnect 
spark plug wire from spark plug and place 
wire where it cannot come in contact with 
plug.
The height of cut can be set to six (6) dif-
ferent positions ranging from 1-1/2 inches 
to 3 inches. Recommended cutting height 
for the average yard is 2 inches.
1.   To adjust trimming height, push in the 

locking plate tab and move trimmer 
head up or down to desired position.

2.   Release tab and be sure head is 

locked into one of the six (6) height 
positions.

Locking
Plate Tab

Adjustable 
Trimmer 
Head

Summary of Contents for 177817

Page 1: ...177817 Rev 3 03 16 06 BY Printed in U S A ...

Page 2: ... before and while moving backwards Do not operate the machine without proper guards plates or other safety protective devices in place See manufacturer s instructions for prop er operation and installation of accesso ries Only use accessories approved by the manufacturer Never use blades wire or flailing de vices This unit is designed for line trim mer use only Use of other accessories or attachme...

Page 3: ...the trimming activity Never assume that children will remain where you last saw them Keep children out of the trimming area and under the watchful care of another responsible adult Be alert and turn machine off if children enter the area Before and while moving backwards look behind and down for small children Never allow children to operate the machine Use extra care when approaching blind corner...

Page 4: ...park plug wire and place wire where it cannot contact spark plug CAUTION Muffler and other engine parts become extremely hot during operation and remain hot after engine has stopped To avoid severe burns on contact stay away from these areas WARNING Engine exhaust some of its constituents and certain vehicle compo nents contain or emit chemicals known to the State of California to cause cancer and...

Page 5: ... head control lever if equipped Starter handle Gasoline cap Engine cover Primer Trimmer head Handle knob Trimmer line Engine oil cap with dipstick Chassis cover Trimmer head control bar Throttle control Throttle control used for starting and stopping the engine and allows you to select either fast or slow engine speed Starter handle used for starting engine Trimmer head control lever if equipped u...

Page 6: ... bar must be held down to the handle to engage trimmer head Release to stop the trimmer head Primer pumps additional fuel from the carburetor to the cylinder for use when starting a cold engine IMPORTANT This trimmer is shipped WITHOUT OIL OR GASOLINE in the engine Air filter Muffler KNOW YOUR TRIMMER BRIGGS STRATTON MODELS READ THIS OWNER S MANUAL AND ALL SAFETY RULES BEFORE OPERATING TRIMMER Com...

Page 7: ...til it clicks then release the lever Trimmer head rotation will stop when the control bar is released STOP BEFORE STARTING ENGINE ADD OIL Your trimmer is shipped without oil in the engine For type and grade of oil to use see the engine maintenance section in your engine manual CAUTION DO NOT overfill engine with oil or it will smoke on startup 1 Be sure trimmer is level and area around oil fill is...

Page 8: ... ethanol or methanol can attract moisture which leads to separation and formation of acids during storage Acidic gas can damage the fuel system of an engine while in storage To avoid engine problems the fuel system should be emptied before storage of 30 days or longer Empty the gas tank start the engine and let it run until the fuel lines and carburetor are empty Use fresh fuel next season See Sto...

Page 9: ...ing slowly through very thick and heavy weeds Use the left side of trimmer when trim ming along fences walls flowerbeds and other such objects If trimmer lines become too short it will take longer to complete the job If trim mer lines are worn to less than half their original length they should be replaced See TO REPLACE TRIMMER LINE in the Maintenance section of this manual Trimmer head contact w...

Page 10: ...d help your engine run better and last longer Follow the maintenance schedule in this manual MAINTENANCE BEFORE EACH USE 1 Check engine oil level 2 Check for loose fasteners 3 Clean under engine cover LUBRICATION To prolong the useful life of your trimmer change engine oil as recommended in this section of Operator s Manual IMPORTANT Do not oil or grease plastic wheel bearings Viscous lubricants w...

Page 11: ...ry more then one 1 inch in length This is im portant to make sure the trimmer head is balanced and will not vibrate abnormally WARNING Use only the specified trimmer line Do not use other materials such as wire string rope etc Wire can break off during trimming and become a dangerous missile that can cause serious injury TO CUT LINE TO PROPER LENGTH NOTE Trimmer line pre cut to proper length is av...

Page 12: ...ATION TO CHANGE ENGINE OIL Change the oil after every 25 hours of operation or at least once a year if the trimmer is not used for 25 hours in one year Refer to engine manual NOTE Before tipping trimmer to drain oil drain fuel tank by running engine until fuel tank is empty 1 Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug 2 Remove engine o...

Page 13: ...your trimmer by scraping to remove build up of grass and trash Clean engine often to keep trash from accumulating A clogged engine runs hotter and shortens engine life Keep finished surfaces and wheels free of all gasoline oil etc We do not recommend using a gar den hose to clean trimmer unless the electrical system muffler air filter and carburetor are covered to keep water out Water in engine ca...

Page 14: ...he upper handle to pivot to the desired position Tighten handle knob securely NOTE The handle knob and bolt may be reversed for left handed operation 3 Remove the two 2 screws on sides of trimmer securing the debris shield 4 Turn trimmer on its side with carburetor and fuel cap up 5 Remove the two 2 screws on under side of trimmer securing the debris shield 6 Slide the debris shield rearward and r...

Page 15: ...y 14 Replace debris shield and tighten the four 4 screws securely 15 Replace chassis cover and tighten screw securely 11 Assemble new belt idler pulleys and bottom belt keeper to idler bracket Tighten pulley bolts securely NOTE Be sure belt is inside top belt keeper on idler assembly 12 Position belt and idler assembly in trimmer reconnect idler spring and as semble idler to chassis Belt Idler bra...

Page 16: ... spark plug hole into cylinder 3 Pull starter handle slowly a few times to distribute oil 4 Replace with new spark plug OTHER Do not store gasoline from one season to another Replace your gasoline can if your can starts to rust Rust and or dirt in your gasoline will cause problems If possible store your unit indoors and cover it to give protection from dust and dirt Cover your unit with a suitable...

Page 17: ...es Vibration 2 Loose nuts or bolts 2 Check all hardware including engine bolts 3 Damaged trimmer head 3 Check repair trimmer head Starter rope 1 Bent engine crankshaft 1 Contact a qualified hard to pull service center Loss of 1 Belt not driving 1 Put belt on pulleys or head drive replace belt if broken Hard to push 1 Handle height position not 1 Adjust handle height right for you to suit Poor trim...

Page 18: ...CE NOTES St cro Wa St lea be the all Op lig Do the Ne Alw firm run If t ab ch tio Alw gla ati II S Slop and seve cauti not t DO Tri an wh Re lim Wa gra DO Do em foo Do Do ing III C Trag is no Child and that saw ...

Page 19: ...r operation and installation of accesso ries Only use accessories approved by the manufacturer Never use blades wire or fl ailing de vices This unit is designed for line trim mer use only Use of other ac ces so ries or attachments will increase the risk of injury Maintenance 10 13 Service and Adjustments 14 15 Storage 15 16 Troubleshooting 17 ONTENTS an internal com bus tion engine and should t co...

Page 20: ...WHEELED WEEDTRIMMER 1778 ...

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