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10

Trim When Wet or Dry

Grass and most other materials are

most efficiently trimmed when dry.  But
the trimmer/mower will do a fine job
even with damp or wet materials.
When conditions are moist or damp, be
sure to clean debris off the machine
regularly to keep cutting efficiency
high.  And watch your footing.

Clean the Trimmer/Mower
On a Regular Basis

Clean under the trimmer/mower fre-

quently to remove any grass buildup.
Also clean around the muffler and on
top of engine.  See cleaning instruc-
tions in Section 5: Maintenance for fur-
ther details.

Use the Correct Cutting Height to
Suit the Job

Generally, the height of the trimming

line should be adjusted upward to han-
dle taller material and cope with
tougher cutting conditions.  Ease into
heavy growth materials.  For the most
precise cutting possible, let the cutting
head rest lightly on the ground, and do
not lift up on the handlebars while
mowing.  This lets the cutting head fol-
low the ground contour closely, result-
ing in the most even cut possible.

When conditions are not so 

demanding, and the material to be
trimmed is not so tall, the cutting
height can be adjusted downward.

Don’t overwhelm the equipment with

the job at hand.  Your equipment will
work more effectively.

Do Not Let the Trimmer Lines
Become Too Short

Once the lines are worn to less than

1/2 their original length, trimming jobs
begin to take far longer than they
should.  As a general guideline, once
line length becomes half of its original
length, it’s time to change to new lines.

Use the Right Diameter Line 
for the Trimming Job

Before starting a project, examine

the grass or material you will be cut-
ting.  For tougher projects, use two
sections of the red .155" diameter
extra-heavy-duty line; for less demand-
ing jobs, use two sections of the green
.130" diameter heavy-duty line.  The
thicker line has the heft to chop through
tougher materials, while the thinner
line provides a more precise cut.

Use Extreme Caution on Slopes

When operating on sloping ground,

use extreme caution and common
sense to avoid possible injury or prop-
erty damage.

Do not mow on excessively steep

slopes!  Avoid slopes if greater than
15

0

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
down and exercise caution when
changing direction on slopes.

Use Correct Walking Speed

Use a travel speed that is suitable for

the conditions at hand.  For example,
you’ll get better trimming and mowing
results at slower walking speeds if the
grass is tall or lush.  Shorter grass or
less dense growth can be cut at faster
travel speeds.

Vary the Throttle Setting
to Suit the Job

The vast majority of trimming and

mowing jobs will yield the best results
if the engine throttle control is set at
the fastest engine speed.

Less demanding jobs and projects

that require very precise cutting will
yield better results if the engine throttle
is backed off somewhat to reduce en-
gine speed.  (For example, damage to
trees and ornamentals can be avoided
by reducing the engine speed, using
the lighter .130" diameter line, and by
keeping a safe distance away.)

Again, once you begin a particular

job and get a “feel” for the conditions,
you will be able to make adjustments
for the best possible results.

Keep the Mowed Side to Your
Right as You Move Ahead

The trimmer/mower feeds cut mate-

rials to the right side.  Stay on the right
side of unmowed growth as you move
along.

WARNING

THROWN OBJECT HAZARD

•  Objects such as rocks, peb-

bles, and small debris will
be thrown violently by the
cutting head, resulting in
significant hazard to eyes
and exposed body parts.

•  Always wear safety-ap-

proved eye protection and
suitable clothing and
footwear.

•  Keep children, pets and by-

standers 50 feet away from
machine while operating.

•  Be alert to hidden obstacles.

Failure to comply could result
in injury or property damage.

TRIMMING & MOWING TECHNIQUES AND TIPS

NOTE:  If trimmer is operated in a
stationary position with the wear
cup in contact with dry vegetation,
significant heat will result that may
deform the plastic spindle or scorch
vegetation.

Section 4: Operation

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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