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LEHR

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LEHR ECO-TRIMMER

4-CYCLE PROPANE TRIMMER

For service call 1-866-941-LEHR in the United States, to 

obtain a list of authorized service dealers near you. 

For more details about your unit, visit our website at: 

www.golehr.com.

DO NOT RETURN THE UNIT TO THE RETAILER. 

PROOF OF PURCHASE WILL BE REQUIRED FOR 

WARRANTY SERVICE.

THIS PRODUCT IS COVERED BY ONE OR MORE 

U.S. PATENTS. OTHER PATENTS ARE PENDING

Service on this unit both within and after the warranty 

period should be performed only by an authorized and 

approved service dealer.

SPARK ARRESTOR NOTE

NOTE:

 For users on U.S. Forest Land and in the states 

of California, Maine, Oregon, and Washington. All U.S. 

Forest Land and the State of California (Public Resources 

Codes 4442 and 4443), Oregon, and Washington require 

by law that certain internal combustion engines operated 

on forest brush and/or grass-covered areas be equipped 

with a spark arrestor, maintained in effective working order, 

or the engine be constructed, equipped and maintained 

for the prevention of fire. Check with your state or local 

authorities for regulations pertaining to these requirements. 

Failure to follow these requirements could subject you to 

liability or a fine. This unit is factory equipped with a spark 

arrestor.

All information, illustrations, and specifications in this 

manual are based on the latest production information 

available at the time of printing. We reserve the right to 

make changes at any time without notice.

 

IMPORTANT SAFETY INSTRUCTIONS 

 

 

READ ALL INSTRUCTION BEFORE OPERATING 

• Inspect the unit befo

re use. Replace damaged parts.

 Check for fuel leaks. Make sure all fasteners are in place 

and secure. Replace parts that are cracked, chipped, 

or damaged in any way. Do not operate the unit with 

loose or damaged parts.

• Ca

refully inspect the area before starting the unit. 

Remove all debris and hard or sharp objects such as 

glass, wire, etc.

• Be awa

re of the risk of injury to the head, hands and 

feet.

• Clear the a

rea of children, bystanders, and pets. At 

a minimum, keep all children, bystanders, and pets 

outside a 50 feet (15 m.) radius; there still may be a risk 

to bystanders from thrown objects. Bystanders should 

be encouraged to wear eye protection. If you are 

approached, stop the unit immediately.

• Use only original equipment manufactu

rer replacement 

line. Never use metal-reinforced line, wire or rope. 

These can break off and become dangerous projectiles.

• Squeeze the th

rottle control and check that it returns 

automatically to the idle position. Make all adjustments 

or repairs before using unit.

• Do not operate this unit when ti

red, ill, under the 

influence of alcohol, drugs or medications.

• This unit is intended for adult use onl

y. Do not allow 

children or untrained individuals to use the unit.

• Familiarize yourself with the cont

rols and proper use of 

your trimmer prior to using.

 

WARNING:

WHEN USING THE UNIT, YOU MUST 

FOLLOW THESE SAFETY RULES. PLEASE 

READ THESE TO ENSURE THE SAFETY OF 

THE OPERATOR AND ANY BY ST ANDERS. 

PLEASE KEEP THESE INSTRUCTIONS FOR 

LATER USE. 

 

WARNING:

WHEN SERVICING, USE ONLY 

REPLACEMENT

IDENTICAL 

PARTS.  USE OF ANY OTHER 

PARTS MAY CREATE A HAZARD OR CAUSE 
PRODUCT DAMAGE. 

SERVICE AND SAFETY

DU

• Never start or run the unit inside a closed 

room or 

ing. Breathing exhaust fumes can be fatal. Operate this 

unit only in a well ventilated outdoor area.

• 

Wear safety glasses or goggles that meet ANSI Z87.1 

standards and are marked as such. Wear ear/hearing 

protection when operating this unit. Wear a face or dust 

mask if the operation is dusty.

• 

Wear heavy long pants, boots, gloves and a long sleeve 

shirt. Do not wear loose clothing, jewelry, short pants, 

sandals or go barefoot. Secure hair above shoulder 

level.

• The cutting attachment shield must always be in place 

while operating the unit as a trimmer. Do not oper

ate unit without both trimming lines extended, and the 

proper line installed. Do not extend the trimming line 

beyond the length of the shield.

• This unit has a clutch. The cutting attachment 

remains 

stationary when the engine is idling. If it does not, have 

the unit adjusted by an authorized service technician.

• Adjust the handle to your size in o

rder to provide the 

best grip.

• Be su

re the cutting attachment is not in contact with 

anything before starting the unit.

• 

Avoid accidental starting. Be in the starting position 

whenever pulling the starter rope. The operator and 

unit must be in a stable position while starting. Refer to 

Starting/Stopping Instructions. (p.10)

• Only use this tool for its intended purpose.
• Do not over

reach. Always keep proper footing and bal

ance.

• Always hold the unit with both hands when operating. 

Keep a firm grip on both handles or grips.

• Keep hands, face, and feet at a distance f

rom all mov

ing parts. Do not touch or try to stop the cutting attach

ment when it rotates.

parts get extremely hot from operation, even after the 

unit is turned off.

SAFE OPERATION RULES

ALL RIGHTS RESERVED 2008-2009

Summary of Contents for 25cc - Propane Curved Shaft Trimmer Powered by Lehr

Page 1: ...9 Troubleshooting 19 Speci cations 20 Warranty 21 PROPANE POWERED LINE TRIMMER 16 4 oz Propane Bottle Not Included ST 025SS ST 025DC ST 025CS ST 025DS DO NOT RETURN THE UNIT TO THE RETAILER Call 1 866 941 LEHR 5347 OPERATOR S MANUAL ECO TRIMMER MODELS TABLE OF CONTENTS WARNING THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER BIRTH DEFECTS OR ...

Page 2: ...e unit before use Replace damaged parts Check for fuel leaks Make sure all fasteners are in place and secure Replace parts that are cracked chipped or damaged in any way Do not operate the unit with loose or damaged parts Carefully inspect the area before starting the unit Remove all debris and hard or sharp objects such as glass wire etc Be aware of the risk of injury to the head hands and feet C...

Page 3: ... unit is turned off 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 damage Do not o...

Page 4: ...ection when operating this unit Use a full face shield when needed OIL Refer to operator s manual for the proper type of oil Do not operate without the cutting attachment shield in place Keep away from the rotating cutting attachment Keep all bystanders especially children and pets at least 50 feet 15 m from the operating area Do not touch a hot muffler gear housing or cylinder You may get burned ...

Page 5: ... Cutting Attachment Shield Shaft Mount Plate Washer Washer Lock W asher Attaching Screws INSTALLING THE D HANDLE AND LOWER HANDLE STRAIGHT SHAFT AND ACCESSORY READY TRIMMERS 1 Locate the 4 screws included in the tool kit 2 Assemble the upper and lower handle parts and 4 screws as shown in Fig 3 positioning the handle parts evenly over the rubber sleeve on shaft Do not completely tighten 3 While ho...

Page 6: ... to measure the correct amount during future oil changes See Changing The Oil p 13 1 Unscrew the top of the bottle of oil and remove the seal covering the opening Replace the top Fig 5 Fig 5 4 Cycle Motor Oil 2 Place the unit on a level surface fig 6 3 Remove the oil plug dipstick from the crankcase Fig 7 4 Pour the entire bottle of oil into the oil fill hole Fig 7 Oil fill plug dipstick Oil Fill ...

Page 7: ... and 5 years impris onment 49 U S C 5124 6 Never put in luggage or take on trains or aircraft 7 To discard contact local refuse hauler or recycle cen ter Never put in fire or incinerator Do not puncture If your cylinder was purchased with a Green Key or similar device install it when empty and cylinder may be recycled with other steel items Green Key is a trademark of the Coleman company NOTE FIRE...

Page 8: ...to Federal State and local Regulations 3 Insert the threaded end of the propane canister into the clamp as far as it will go Fig 9A Insert the propane con nector onto the threaded end of the canister and screw it onto threads clockwise Fig 9B Screw it until snug Do not over tighten It may be normal to hear or smell a slight momentary leak of propane as the connector is being screwed in Make sure t...

Page 9: ...mains in the upright position while operating NOTE Lock the release button in the receiving hole and securely tighten the knob before operating this unit NOTE Attachments are to be used in the receiving hole only Using the wrong hole could lead to personal injury or damage to the unit NOTE Always install the attachment so that the engine is upright propane tank on bottom when unit is oper ated A s...

Page 10: ...th propane 5 Squeeze the throttle control slightly to warm up the engine for 15 to 30 seconds In cold weather move the throttle slowly until the engine warms up for 30 to 60 seconds NOTE When starting the engine in very hot or cold conditions it may be necessary to squeeze the throttle open while pulling the starter rope Safety trigger Stop Off Start On I Throttle Control Fig 13 STOPPING INSTRUCTI...

Page 11: ...do the cutting especially along walls Cutting with more than the tip will reduce cutting ef ficiency and may overload the engine Cut grass over 8 inches 200 mm by working from top to bottom in small increments to avoid prema ture line wear or engine drag Slowly move the trimmer into and out of the cutting area at the desired height Move either in a forward backward or side to side motion Cutting sh...

Page 12: ... The importance of checking and maintaining the proper oil level in the crankcase cannot be overemphasized Check oil before each use 1 Stop the engine and allow to cool 2 Place the unit on a flat level surface to get a proper oil level reading 3 Keep dirt grass clippings and other debris out of the engine Clean the area around the oil fill plug dipstick before removing it 4 Remove the oil fill plu...

Page 13: ...urs of operation It is an important item to maintain Failure to maintain your air filter properly can result in poor performance or can cause permanent damage to your engine 1 Remove phillips head screw in air filter cover Then pull the air filter cover out and upwards Fig 21 2 Remove the air filter Fig 21 3 Wash the filter in detergent and water Rinse the filter thoroughly and allow it to dry 4 A...

Page 14: ...f the cutting attachment rotates when the engine idles turn the idle speed screw counterclockwise 1 8 of a turn at a time as needed to reduce idle speed Checking the fuel cleaning the air filter and adjusting the idle speed should solve most engine problems If not and all of the following are true the engine will not idle the engine hesitates or stalls on acceleration there is a loss of engine pow...

Page 15: ...tion hook opposite of the direction of the rotation about1 2 inch deep 7 Wrap line 180 and wind extra line in the opposite direction of rotation of the head as shown Fig 26 Fig 26 Wire Reel Retention Hook Retention Hook NOTE Always use original equipment manufacturer replacement line Lines other than those specified may make the engine overheat or fail 8 Continue winding cord in direction indicate...

Page 16: ...ite of the direc tion of the rotation about 1 2 in 12 7 mm deep 4 Wrap line 180 and wind extra line in the opposite direction of rotation of the head Fig 33 Fig 33 Retention Hook 6 Snapthefreelengthoflinesintotopgroovesinreelandpull throughholesontrimmerheadbody Fig 34andFig 35 Fig 35 Trimmer Head Body Spring Reel Bump Feed Button Trimmer Head Body Bottom Holes 7 Close assembly in sequence as show...

Page 17: ...e when using line trimmer head Fig 41 Fig 41 Bottom Shield Attachment Screw Cutting Attachment Sheild ROCKER ARM CLEARANCE ADJUSTMENT This requires partial disassembly of the engine If you feel unsure or unqualified to perform this take the unit to an authorized service center 1 Remove the four screws on the engine cover with a phillips head screw driver Fig 42 2 Remove the engine cover 3 Disconne...

Page 18: ...alve Intake Valve Fig 44 IF THE CLEARANCE IS NOT WITHIN SPECIFICATION 1 Loosen the jam nut and turn the adjusting screw as necessary To increase the clearance turn the adjusting screw CCW To decrease the clearance turn the adjusting screw CW 2 Tighten the jam nut when the clearance is set 3 Recheck the both clearances Readjust if necessary 4 Reinstall the rocker arm cover using a new gasket 5 Tigh...

Page 19: ...Change the oil referring to Changing the Oil p 13 Dispose of the old oil in accordance to Federal State and Local regulations 4 Thoroughly clean the unit and inspect for any loose or damaged parts Repair or replace damaged parts and tighten loose screws nuts or bolts The unit is ready for storage TRANSPORTING Allow the engine to cool before transporting Secure the unit while transporting Remove pr...

Page 20: ...16 4OZ CANISTER CARBURETOR CHOKE LESS ALL POSITION STARTER AUTOREWIND MUFFLER BAFFLED WITH GUARD THROTTLE SAFETY LOCK WITH MANUAL SPRING RETURN DRIVE SHAFT AND HOUSING DRIVE SHAFT HOUSING ALUMINUM TUBE THROTTLE CONTROL FINGER TIP TRIGGER APPROXIMATE UNIT WEIGHT 13 1 14 9 LBS CUTTING MECHANISM BUMP FEED CUTTINGHEAD LINE SPOOL DIAMETER 2 4 3 4 INCHES TRIMMING LINE DIAMETER 0 080 0 095 INCHES CUTTING...

Page 21: ... maintenance As the small off road engine owner you should however be aware that LEHR may deny you warranty coverage if your small off road engine or a part has failed due to abuse neglect or improper maintenance or unapproved modifications You are responsible for presenting your small off road engine to a LEHR service center as soon as the problem exists The warranty repairs should be completed i...

Page 22: ...LEHR ALL RIGHT RESERVED 2008 2009 22 NOTES ...

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