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GENERAL SAFETY RULES

 

This book is written for a person with some mechanical abil-

ity.  Like most service books, not all the steps are described.

Steps on how to loosen or tighten fasteners are steps anyone

can follow with some mechanical ability.  Read and follow 

these instructions before you use the unit. 

Know your product:

 If you understand the unit and how the

unit operates, you will get the best performance.  As you read

this manual, compare the illustrations to the unit.  Learn the 

location and the functions of the controls.  To help prevent 

an accident, follow the operating instructions and the safety

rules.  Keep this manual for future reference. 

IMPORTANT:

 Many units are not assembled and are sold in 

cartons.  It is the responsibility of the operator to make sure

the assembly instructions in this manual are exactly followed.

Other units are purchased in an assembled condition.  On 

assembled units, it is the responsibility of the operator to

make sure the unit is correctly assembled.  The operator

must carefully check the unit according to the instructions in

this manual before it is first used. 

RESPONSIBILITY OF THE OPERATOR

 

The responsibility of the operator is to follow the instructions

below: 

1. Carefully read and follow the rules for safe operation.

2. Follow all the assembly and preparation instructions.

3. Regularly inspect the trimmer.  

 

Make sure parts are not

bent, damaged, or loose.

4. Use this equipment for its intended purpose only.

5. Make sure that the operator of the unit knows how to

correctly use all standard and accessory equipment.

6. Operate the unit only with guards, shields, and other safety

items in place and working correctly.

7. Correctly adjust the unit.

8. Service the unit only with authorized or approved

replacement parts.

9. Complete all maintenance on the unit. 

WARNING

 

Look for this symbol to point out important safety

precautions. It means: “ Attention! Become Alert!  Your  

Safety Is Involved.” 

WARNING 

Engine Exhaust, some of its constituents, and certain

vehicle components contain or emit chemicals known to

the State of California to cause cancer and birth defects 

or other reproductive harm.

Battery posts, terminals and related accessories contain

lead and lead compounds, chemicals known to the State

of California to cause cancer and birth defects or other 

reproductive harm.  WASH HANDS AFTER HANDLING. 

Page 1

 

WARNING 

To prevent accidental starting when setting up,  

transporting, adjusting or making repairs, always

disconnect spark plug wire and put wire where it cannot

contact the spark plug. 

SAFE OPERATION PRACTICES BEFORE USE

 

• 

 

Read, understand, and follow all instructions on the

machine and in the manuals.  Be thoroughly familiar with

the controls and the proper use of the trimmer before

starting. Know how to stop the trimmer and disengage the

controls quickly. 

• 

 

Familiarize yourself with all the safety and operating decals 

on this equipment.

• 

 

Thoroughly inspect the area where the trimmer is to be

used and remove all foreign objects. Your equipment can  

propel small objects at high speed causing personal injury

or property damage.  Stay away from breakable objects,

such as house windows, auto glass, greenhouses, etc.

• 

 

Inspect the throttle control lever and cable.  Make sure 

that the cable is free and that the lever is not damaged.

Also check the cable linkage running to the carburetor for

kinks, loose fittings, and obstructions.  Verify that the start  

lever is working properly. 

• 

 

Check that all nuts and bolts are tight and equipment is in

good condition.  Check mounting hardware on trimmer

head every time you change trimmer line prior to each use. 

OPERATION SAFETY

 

• 

 

Never allow children or young teenagers to operate the

trimmer.  

• 

 

Keep area of operation clear of all bystanders, particularly

small children and pets.

• 

 

Keep bystanders at least 50 ft (15 m) away. 

• 

 

Only allow responsible individuals, who are familiar with

the instructions, to operate the trimmer.  

• 

 

Do not operate the trimmer while under the influence of 

alcohol, drugs, or other medication which can cause

drowsiness or affect your ability to operate this machine  

safely. 

• 

 

Do not use this machine if you are mentally or physically

unable to operate the machine safely. 

• 

 

Always wear ANSI compliant safety goggles or safety  

glasses with side shields when operating trimmer to

protect your eyes from foreign objects, which can be

thrown from the unit. 

• 

 

Wear appropriate clothing such as a long sleeved shirt  

or jacket.  Also wear long trousers or slacks.  Do NOT 

wear shorts.  Do NOT wear loose clothing, which could get 

caught in this equipment.

• 

 

Always wear work gloves and sturdy footwear such as

leather work shoes or short boots.  These will protect

ankles and shins from small sticks, splinters, and other

flying debris, and improve traction.

• 

 

It is advisable to wear protective headgear to protect

against being struck by small flying particles, or being  

Summary of Contents for PET-51Y

Page 1: ...and manufactured to our high standard for dependability ease of operation and operator safety WARNING To reduce the risk of injury the user must read and understand the operator s manual before using...

Page 2: ...ly 7 g Operation 8 11 g Slope Guide 12 g Maintenance 13 17 g Troubleshooting 18 19 INTRODUCTION This tool has many features for making its use more pleasant and enjoyable Safety performance and depend...

Page 3: ...H HANDS AFTER HANDLING Page 1 WARNING To prevent accidental starting when setting up transporting adjusting or making repairs always disconnect spark plug wire and put wire where it cannot contact the...

Page 4: ...s containing CARBON MONOXIDE an ODORLESS AND DEADLY GAS Never leave the trimmer unattended when the engine is running Stop the engine and make sure all moving parts Page 2 have stopped Remove the wire...

Page 5: ...the unit Make sure all moving parts have stopped Let the engine cool disconnect the spark plug wire and move it away from the spark plug Never attempt to make any adjustments while the engine Page 3...

Page 6: ...signal word DANGER WARNING OR CAUTION is used with the alert symbol to alert you to special instruction about a particular operation that may be hazardous if performed incorrectly or carelessly Obser...

Page 7: ...slopes Rotating parts can cause serious injury Keep away from rotating parts Stop engine and disconnect spark plug wire before making adjustments Wear eye protection complying with ANSI Z87 1 and hear...

Page 8: ...the controls compare Figure 1 with your trimmer Save this manual for future reference Figure 1 Trimmer Head Drive Lever Throttle Control Lever Primer Button Recoil Starter Handle Shield Edge Guard Sta...

Page 9: ...nit remove the wire from the spark plug TOOLS REQUIRED 1 Utility Knife to Cut Carton 1 Oil Funnel 1 Torque Wrench to Check Fastener Tightness 1 T Handle Wrench included in parts bag ADJUST THE HANDLE...

Page 10: ...inside an enclosure do not ll with gasoline Before you add gasoline stop the engine Let the engine cool for several minutes IMPORTANT This unit is equipped with an internal combustion engine and must...

Page 11: ...engine parts NOTE Make sure engine is level before starting CAUTION Never leave the trimmer unattended while the engine is running Wait for the trimmer lines to stop rotation 1 Before each use remove...

Page 12: ...he handle Move the trimmer head drive lever forward to engage the trimmer head See Figure 9 HOW TO SET THE HEIGHT OF CUT CAUTION Before you set the height of cut stop the engine Wait for all moving pa...

Page 13: ...ine use the ends of the line to do the cutting This is easily done by moving slowly through very thick or heavy weeds If the trimmer lines become too short it will take longer to complete this job If...

Page 14: ...WITH A VERTICAL TREE A CORNER OF A STRUCTURE A POWER LINE POLE OR A FENCE Operate a trimmer across the face of slopes never up or down slopes Use this guide and do not trim on a slope greater than 15...

Page 15: ...half the original length replace with new line Note 2 Clean daily if used in extremely dusty or dirty conditions Clean grass and debris build up off of the debris screen Note 3 Change more often if us...

Page 16: ...ve the oil drain plug See Figure 11 4 Drain all the engine oil into a at pan 5 Install the oil drain plug Make sure the oil drain plug is tight 6 Remove the dipstick 7 Fill the engine crankcase DO NOT...

Page 17: ...of the lines to vary more than one inch Make sure the trimmer head is balanced and does not vibrate 4 Thread the ends of the new trimmer line through the out side loops See Figure 13 5 Take the ends...

Page 18: ...tion is 3L 5 To assemble the drive belt reverse the above steps 6 The torque specs are 9 6 14 8 foot pounds 13 20 Nm for the shield fasteners 27 33 foot pounds 36 6 44 7 Nm for the drive pulley mounti...

Page 19: ...mmer is in good condition the following season 1 Let the engine run until it is out of gasoline 2 Change the oil by following instructions under Engine Maintenance Page 17 3 Remove the spark plug from...

Page 20: ...ve Replace air lter Engine runs poorly Bad spark plug Dirty air lter Carburetor out of adjustment Stale gasoline Replace spark plug Replace air lter Adjust carburetor Take the unit to an authorized Se...

Page 21: ...to approximately equa lengths Loose nuts or bolts Check all bolts and nuts including engine bolts Broken trimmer head Replace broken part Trimmer head does not Trimmer line not properly attached Follo...

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