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16

CLEANING THE ENGINE
FOAM DEBRIS FILTER

It is extremely important to keep the
foam debris filter (A, Figure 5-14) free
of dirt and dust so the engine can run
as efficiently and as cool as possible.

Clean the foam debris filter every time
you refuel (also remove all debris from
around the fuel fill cap).

To wash the debris filter, remove the
outer “O-ring” (B, Figure 5-14) and
carefully lift it off the wire guard (C) to
which it is attached on top of engine.
Soak filter in warm water and detergent
solution.

When clean, rinse the debris filter thor-
oughly, then air dry it.  The wire guard
may also be removed to clean out any
debris.  Replace the wire guard and
foam filter properly—they must make
contact with the engine.  The recoil
start rope must fit in the slot.  Be sure
the “O-ring” is 1/2" above the engine.

NOTE: Inspect the engine air filter sys-
tem as per the Engine Owner’s Manual.

GENERAL LUBRICATION

Apply grease, light oil or  silicone-based
lubricant to your machine so parts
work more smoothly and are protected
from the elements.  The following are
general guidelines:

Light Grease:

•  Wheel axle shaft pivot points

Silicone-base Spray Lubricant
(or light oil):

• Throttle control cable (if so equipped)
• Control bail cable
• Nuts, bolts and other hardware

NOTE: The spindle head is perma-
nently lubricated at the factory.  There
is no need for additional lubrication.

COMPACT STORAGE

For compact storage of the unit, re-
move the two screws and locknuts se-
curing the handlebar and carefully (to
avoid kinking the cable) rotate the han-
dlebar so that the upper portion rests
on the engine and the handlebar legs
face to the rear of the unit.

GENERAL ENGINE
MAINTENANCE

Perform the following engine mainte-
nance for your engine according to the
engine maintenance schedule and in-
structions in the separate Engine
Owner’s Manual:
• Check engine oil level.
• Add oil to engine.
• Change engine oil.  (In order to

change the oil, debris flap and belt
cover removal are required to 
access the oil drain plug.)

• Inspect the air cleaner.
• Inspect the spark arrester muffler (if

so equipped).

• Inspect the spark plug.

OFF-SEASON STORAGE

When storing the trimmer/mower for

extended periods, follow these proce-
dures to ensure that the trimmer/mower
will be in good condition for future use.

•  Store machine on a level surface.

•  Thoroughly inspect the machine for
any loose, broken or missing parts.
Repair or replace parts as necessary.

•  Remove all fuel from fuel tank or use
a fuel stabilizer additive as directed in
the Engine Owner’s Manual.

•  Change engine oil.

•  Remove spark plug and squirt 1/2-
ounce of engine oil into spark plug
hole.  Cover hole with a rag.  Slowly
pull recoil starter rope to crank engine,
then reinstall plug.

•  Clean any dirt, grass or chaff from
the air cooling system intake area and
other parts of the engine.

•  Check nuts, bolts, other hardware for
tightness.  Replace missing hardware.

•  On an electric start model, remove
key from keyswitch.  Charge battery for
24 hours before and after storage.

•  Disconnect spark plug wire from
spark plug.  Prevent wire from touch-
ing spark plug by placing wire boot
away from spark plug.

Figure 5-14.

c

e

B

A

C

WARNING

Never run engine without the
debris filter properly in-
stalled.  If debris filter is not
properly installed, grass clip-
pings may be drawn into en-
gine, causing heat buildup
and, in some cases, a fire.

Failure to comply can cause
injury or property damage.

WARNING  

Before inspecting, cleaning or servicing the unit, shut off engine, wait for all parts

to come to a complete stop, disconnect spark plug wire and move wire away from spark plug.
Remove ignition key on electric start models.  Failure to follow these instructions can result in
serious personal injury or property damage.

Section 5: Maintenance/Repairs

WARNING

•  Never perform mainte-
nance when engine is run-
ning or spark plug wire is
connected except when in-
structed to do so.

•  Never store mower with
fuel in fuel tank inside a
building where fumes can
reach an open flame or
spark, or where ignition
sources are present such as
hot water and space heaters,
furnaces, clothes dryers,
stoves, electric motors, etc.
Make sure engine is cool be-
fore storing.

•  Drain gasoline outdoors
into an approved container.

•  Do not smoke and keep
fuel away from open flame.

Failure to follow these in-
structions will result in seri-
ous personal injury or prop-
erty damage.

Summary of Contents for 52051

Page 1: ...les and sma ll deb ris will be thro wn viol entl y by the cutt ing hea d resu lting in sign ifica nt haza rd to eyes and exp ose d bod y part s Kee p chil dren pets and bys tand ers 50 feet awa y from mac hine whil e ope ratin g Be aler t to hidd en obs tacl es RO TA TIN G CU TTI NG HE AD Do not serv ice or adju st cutt ing hea d or othe r mov ing part s unle ss eng ine is stop ped and spa rk plug...

Page 2: ...tents Dear Owner You now own one of the finest trimmer mowers available It was designed to easily handle a wide vari ety of trimming mowing and clearing chores You will find the Trimmer Mower to be an invaluable tool in caring for your property Please carefully read this Manual which tells you how to safely and easily assemble operate and main tain your machine Be sure that you and any other op er...

Page 3: ...he trim mer mower is to be used The equip ment can propel small objects at high speed causing personal injury or property damage Clear the area of ob jects such as rocks toys wire bones sticks etc which could be picked up and thrown by the trimmer line 5 Be sure the area is clear of other people particularly small children and pets before mowing Stop trimmer mower if anyone enters the area Keep by...

Page 4: ...u can not back up the slope or you feel uneasy on a slope do not mow it DO Mow across the face of slopes never up and down Exercise extreme cau tion when changing direction on slopes Avoid slopes greater than 15o Remove objects such as rocks tree limbs etc Uneven terrain could overturn the machine Watch for holes ruts or bumps Tall grass can hide obstacles Use slow speed Use extra care with grass ...

Page 5: ...tery in an airtight space b Do not use a battery charger other than the one provided to you c The battery contains toxic ma terials Do not damage the battery case If the case is bro ken or damaged avoid contact with the battery contents d Properly dispose of a dam aged or worn out battery Check with local authorities for proper disposal methods e Do not short circuit the bat tery Severe burns and ...

Page 6: ...his lessens pressure on the mower wear cup making the unit easier to roll and reducing wear on the wear cup A Cut the plastic tie and remove the tape that secures the control bail G Fig 2 2 to the handlebar A B Using care not to pinch the attached cable lift the handlebars A Fig 2 2 to rear of the unit and align the handle bar ends with the handlebar support B C Route the cable C Fig 2 2 to the ou...

Page 7: ...eck the tightness of the hardware securing the trimmer head at two loca tions X Figure 2 6 and the hardware that secures the line clamps at two lo cations Y You may rotate the trim mer head by hand to make access to the hardware easier Tighten the hard ware securely NOTE The small round hole on the top of the deck near the front of the ma chine is a service entryway Its use is explained in Section...

Page 8: ...ne from accumula tions of cut materials that can clog the engine cooling passages See the Maintenance Section for information on servicing this important filter Battery electric start model The battery K Fig 3 1 starts the en gine via the ignition keyswitch The following are features and controls found on the various models of the Trimmer Mower Read the description and location of each feature and...

Page 9: ...ure it ADJUST HANDLEBAR HEIGHT To adjust handlebar height refer to STEP 2 Install Handlebars in the Assembly Section of this manual WARNING Before operating your ma chine carefully read and un derstand all safety Section 1 controls Section 3 and operating instructions Section 4 in this Manual in the separate Engine Owner s Manual and on the decals on the machine Failure to follow these in structio...

Page 10: ...se heavy duty green line 130 dia which provides a higher quality level of cut This lighter weight line is also recom mended near trees or ornamentals to help prevent girdling cutting the bark USING THE TRIMMER HEAD CONTROL BAIL After the pre starting checkups are complete gasoline is added to the fuel tank handlebar height is adjusted and trimmer line height is selected it is es sential to know ho...

Page 11: ... given previously e Turn the ignition keyswitch to the START position to start the en gine Use short starting cycles 15 seconds per minute to ex tend starter life When released the key will automatically move to the RUN position Power Up the Trimmer Head 1 Stand in the operator s position directly behind the handlebars 2 Slowly close the control bail D Figure 4 6 against the handlebars to activate...

Page 12: ...ssible injury or prop erty damage Do not mow on excessively steep slopes Avoid slopes if greater than 150 or wherever footing is unsure If a slope is difficult to stand on it is prob ably too steep to trim or mow In this case it may be wiser to establish a per manent ground cover on this area Do not trim on slopes when the ground is slippery Trim across the face of a slope not up and down Slow dow...

Page 13: ...AS EACH 5 25 100 NOTED USE HOURS HOURS HOURS CHECK ENGINE OIL LEVEL CHECK TRIMMER MOWER LINES 1 CHECK TRIMMER HEAD ENGAGEMENT ENGINE MACHINE CLEANING 3 CHECK NUTS AND BOLTS CHANGE ENGINE OIL 2 SERVICE AIR FILTER SYSTEM 5 CLEAN OUT BELT COVER GENERAL LUBRICATION INSPECT DRIVE BELT CLEAN ENGINE FOAM DEBRIS FILTER 4 CHECK WEAR CUP 6 NOTE 1 New line replacement is suggested when old line is 50 or less...

Page 14: ...REMOVING REPLACING THE TRIMMER HEAD A Stop the engine and wait for all moving parts to stop Disconnect spark plug wire and move it away from the spark plug Remove the ignition key on electric start models B Two bolts A Figure 5 3 secure the trimmer head B to the spindle head C Loosen both bolts not the nuts sufficiently to open up the trimmer head enough to let it slide down the spindle head and p...

Page 15: ...er spindle mounting plate Then remove the other four screws holding the belt cover spindle mount ing plate on E F G and H Fig 5 4 Lower the drive housing and the belt cover spindle mounting plate carefully Note precisely how the belt is routed along the pulleys See Figure 5 7 Work the belt off the rear pulley H Figure 5 7 then off the other pulleys NOTE The nut on the idler arm V pul ley must be r...

Page 16: ... are correctly installed note that the longer hub on each pulley is against the idler arm If the pulleys are upside down turn them over and tighten them securely CLEANING AND DEBRIS REMOVAL Thorough and regular cleaning of de bris from around the engine and on the machine is required for maximum en gine efficiency and good overall perfor mance Inspect and clean the following areas regularly Brush ...

Page 17: ...wath You may offset both trim mer lines somewhat to increase the cutting swath up to 25 wide DO NOT offset the line so that the overall cutting swath is greater than 25 See Warning statement at right NOTE Whether replacing one or both lines they must both be 130 or 155 in diameter 4 If bottom of trimmer head is equipped with two brackets see Figure 5 13 position prongs on brackets as shown by larg...

Page 18: ...ct the spark plug OFF SEASON STORAGE When storing the trimmer mower for extended periods follow these proce dures to ensure that the trimmer mower will be in good condition for future use Store machine on a level surface Thoroughly inspect the machine for any loose broken or missing parts Repair or replace parts as necessary Remove all fuel from fuel tank or use a fuel stabilizer additive as direc...

Page 19: ...minal NOTE Discard battery properly as required by regulations in your area Figure 5 15 Use the recharger shipped to you to charge the battery Figure 5 16 Battery replacement A B DANGER Wet conditions can cause an electric shock hazard dur ing battery charging Avoid when conditions when charg ing Recharging the battery with improper equipment could cause a battery explosion Use only the battery ch...

Page 20: ...does not shut off 1 Defective engine On Off switch 4HP Model 1 See Engine Service Dealer Poor mowing performance 1 Line length is too short or too long 1 Adjust line length to 18 long When less than 1 2 this length replace the line 2 Cutting height is too high or low for height 2 Adjust cutting height to approximately 1 3 of grass being cut of the length of the grass 3 Engine not set at FAST speed...

Page 21: ...ur nearest au thorized engine dealer An authorized engine dealer can han dle all parts repairs and warranty service concerning the engine Note All replacement parts must conform to our rigid quality speci fications Although some replacement parts we provide may vary slightly in shape color or texture from the original parts any variations will not affect the fit or performance of these parts on yo...

Page 22: ...er Mower Parts List ENGINE DECK COVERS AND GUARDS BATTERY 1 3 12 23 22 32 28 28 25 25 33 35 36 34 26 37 26 23 29 30 41 40 40 41 31 27 23 4 24 37 24 43 42 37 5 6 9 2 19 7 8 39 17 18 14 38 15 13 16 20 21 37 31 22 ...

Page 23: ...5 1909301 Hex Hd Flange Screw 1 4 20 x 5 8 4 26 1763187 Hex Hd Flange Screw 1 4 20 x 1 2 27 1910865 Belt Guide 1 28 1915219001 Flap Bracket 2 29 1915211 Deflector Shield 1 30 1915212 Deflector Shield Rod 1 31 1185304 E Ring 5 16 2 32 1915205 Belt Cover 1 33 1915290 Push In Fastener 5 34 1915967 Engine Cover Support w decal 1 35 1916994 Engine Cover w decals A 1 36 1916995 Engine Cover w decals B 1...

Page 24: ...22 Trimmer Mower Parts List 1 10 19 22 23 24 25 19 5 12 14 14 17 20 13 4 7 7 2 9 HANDLEBAR ASSEMBLY ...

Page 25: ...MBLY 1 2 3 4 9 10 11 18 20 21 22 23 24 22 22 22 19 14 14 15 16 5 6 13 7 25 8 17 12 1 1910850001 Spindle Mounting Plate 1 2 1910839 Spindle Assembly 1 3 1915477 Spindle Shaft Assembly Incl Ref 25 1 4 1910860001 Belt Guide 1 5 1910856 Spindle Spacer 1 6 1910842 Spindle Pulley 1 7 1904308 Hex Flange Nut 1 2 13 1 8 1915555 V Belt 1 9 1904479 Idler Arm Brake Shoe Assembly 1 10 1910859 Socket Hd Capscre...

Page 26: ...racket 2 5 1733398 Top Lock Nut 3 8 16 2 13 1744708 Hex Lock Nut 5 16 18 8 14 1111606 Hex Head Bolt 5 16 18 x 2 2 15 1186331 Hex Flange Screw 5 16 18 x 1 4 17 9901 Washer 5 16 ID 2 Ref Part Description Qty Ref Part Description Qty LOWER STEERING ASSEMBLY 1 2 2 1 3 5 7 5 3 13 13 13 13 13 14 14 17 17 15 15 ...

Page 27: ...asher 1 6 1915220001 Wear Cup 1 7 1915239 Washer 1 8 1904308 Hex Flange Nut 1 2 13 1 Ref Part Description Qty Ref Part Description Qty ACCESSORIES AND KITS 1 1904476 Trimmer String Kit 155 includes 24 pieces N I 2 1904477 Trimmer String Kit 130 includes 24 pieces N I 3 5003 Safety Goggles 1 4 1768449 Battery Charger Electric Start Model 1 1 2 3 5 6 7 8 4 1 2 3 4 4 N I Not included with unit order ...

Page 28: ...ur authorized dealer or di rectly from the factory Engine Service and Repair For engine service or repair contact your nearest authorized engine dealer look in the Yellow Pages under Engines Gasoline The engine is warranted by the engine manufacturer Any unauthorized work per formed on the engine during the warranty period may void this warranty For com plete details on the engine warranty refer t...

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