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SRM-280T

MAINTENANCE

© 1/2014 ECHO Inc.

X7502310409

23

Note: Federal EPA regulations require all model year 2012 and later gasoline powered engines produced for 

sale in the United States to be equipped with a special low permeation fuel supply hose between the 
carburetor and fuel tank. When servicing model year 2012 and later equipment, only fuel supply 
hoses certified by EPA can be used to replace the original equipment supply hose. Fines up to 
$37,500 may be enforced for using an un-certified replacement part.

Spark Plug

Level 2.

Use only NGK BPM-8Y spark plug (BPMR-8Y in Canada) 
otherwise severe engine damage may occur.

1. Remove spark plug and check for fouling, worn and rounded 

center electrode.

2. Clean the plug or replace with a new one. DO NOT sand blast to clean. Remaining sand will damage 

engine.

3. Adjust spark plug gap by bending outer electrode.

4. Tighten spark plug to 130-150 in • lbf (150-170 kgf • cm).

Cooling System

Level 2.

To maintain proper engine operating temperatures, cooling air must pass freely through the cylinder fin area. 
This flow of air carries combustion heat away from the engine.

Overheating and engine seizure can occur when:

• Air intakes are blocked, preventing cooling air from reaching 

the cylinder.

• Dust and grass build up on the outside of the cylinder. This 

build up insulates the engine and prevents the heat from 
leaving.

Removal of cooling passage blockages or cleaning of cooling 
fins is considered “Normal Maintenance.” Any failure attributed 
to lack of maintenance is not warranted.

Parts Required:

REPOWER

TM

 Tune-Up Kit

Parts Required:

None if you are careful.

.65 mm (.026 in.) 

Summary of Contents for SRM-280T

Page 1: ...catalytic muffler and surrounding cover may become extremely hot Always keep clear of exhaust and muffler area otherwise serious personal injury may occur The engine exhaust from this product contains...

Page 2: ...R B TIER III 9 Description 10 Contents 12 Assembly 13 Plastic Shield Installation 13 Nylon Line Head Installation 13 To Advance Trimmer Line 14 Remove Nylon Line Head 14 Support Handle Installation 14...

Page 3: ...re reference write them in the space provided below Model No _________________ SN ___________________ Service Service of this product during the warranty period must be performed by an Authorized ECHO...

Page 4: ...s and key words and what they mean to you The safety alert symbol accompanied by the word DANGER calls attention to an act or condition which WILL lead to serious personal injury or death if not avoid...

Page 5: ...tor Adjustment Idle speed DO NOT smoke near fuel Primer Bulb Wear hand and foot protection Carburetor Adjustment Low speed mixture Choke Control Run Position Choke Open Choke Control Cold Start Positi...

Page 6: ...on the handles Gloves also reduce the transmission of machine vibration to your hands Breathing Protection Wear a facemask to protect against dust Hearing Protection ECHO recommends wearing hearing pr...

Page 7: ...d If you experience discomfort redness and swelling of the fingers followed by whitening and loss of feeling consult your physician before further exposing yourself to cold and vibration Repetitive St...

Page 8: ...nd fingers tightly encircling the handles Keep a Solid Stance Maintain footing and balance at all times Do not stand on slippery uneven or unstable surfaces Do not work in odd positions or on ladders...

Page 9: ...onal injury or property damage may occur Have unit repaired by an authorized servicing dealer before using EMISSION CONTROL EXHAUST EVAPORATIVE EPA 2010 and Later and or C A R B TIER III The emission...

Page 10: ...unit Make sure the decal s is legible and that you understand and follow the instructions on it If a decal cannot be read a new one can be ordered from your ECHO dealer See PARTS ORDERING instruction...

Page 11: ...embly includes the Cut Off Knife Mounts on the Gear Housing Assembly just above the cutting attachment Helps protect the operator by deflecting debris produced during the trimming operation This shiel...

Page 12: ...rd ____ 1 Safety Glasses ____ 1 Nylon Trimmer Head ____ Assembly Tool s ____ 1 Plastic Shield ____ 1 Shield Plate ____ 3 5mm x 16mm Screws shield mount Specifications descriptions and illustrative mat...

Page 13: ...or personal injury may result Cutoff knife is sharp Gearcase and surrounding area may be hot 1 Be sure adapter plate C remains on PTO shaft A 2 Align locking hole in upper plate with notch in edge of...

Page 14: ...ove Nylon Line Head Note Do not disassemble nylon line head 1 Align locking hole in upper plate with notch in edge of gear housing and insert head locking tool D 2 Remove line head E by turning it clo...

Page 15: ...requirements Operation With Blades Blade use DEMANDS specific Brush Cutter configuration Operation without specified shield barrier bar or U handle and harness can result in serious personal injury Fo...

Page 16: ...sh or heavy woody growth 80 Tooth Brush Blade is designed for cutting brush and woody growth up to 13 mm 1 2 in diameter 22 Tooth Clearing Blade is designed for dense thickets and saplings up to 64 mm...

Page 17: ...D 13738 and J A S O FD Standards must be used Echo brand premium Power Blend X Universal 2 Stroke Oil meets these standards Engine problems due to inadequate lubrication caused by failure to use an IS...

Page 18: ...ry by locality Contact your local government for the laws affecting your area As a precaution store fuel in an approved airtight container Store in a well ventilated unoccupied building away from spar...

Page 19: ...er lockout fully depressed and pull recoil starter starter handle rope until engine starts and runs Release throttle trigger and allow unit to warm up at idle for several minutes Note If engine does n...

Page 20: ...ottle trigger lockout with left hand Rapidly pull recoil starter handle rope D until engine fires Note If engine does not start after 5 pulls use Cold Start Procedure Stopping Engine 1 Throttle Releas...

Page 21: ...difficulty Some specialized tools may be required ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier Maintenance Intervals MAINTENANCE PROCEDURE LETTER CODES I INSPE...

Page 22: ...y Allow to dry completely before reuse Do not oil Dual Layer Air Filter Lightly brush debris from filter Soak heavily soiled filters in water detergent solution to loosen dirt then brush lightly Rinse...

Page 23: ...Clean the plug or replace with a new one DO NOT sand blast to clean Remaining sand will damage engine 3 Adjust spark plug gap by bending outer electrode 4 Tighten spark plug to 130 150 in lbf 150 170...

Page 24: ...rse order Exhaust System Spark Arrestor Screen Level 2 1 Remove spark plug lead 2 Remove muffler cover A 3 Place piston at Top Dead Center TDC to prevent carbon dirt from entering cylinder 4 Remove sp...

Page 25: ...top engine and re tighten mounting bolts or nuts to specifications Carburetor Adjustment Level 2 Engine Break In New engines must be operated a minimum duration of two tanks of fuel break in before ca...

Page 26: ...cutting attachment should not move at idle otherwise serious personal injury may result Lubrication Level 1 Gear Housing 1 Clean all loose debris from gear box 2 Remove plug A and check level of greas...

Page 27: ...placement Wear Gloves or personal injury may result Cutoff knife is sharp Gearcase and surrounding area may be hot 1 Cut one piece of line to recommended length 080 2 0 mm dia 20 6 m 095 2 4 mm dia 20...

Page 28: ...ing If ANY of these problems are discovered replace the blade When sharpening a blade always remove the same amount of materials from each tooth to maintain balance A blade that is not balanced will c...

Page 29: ...SRM 280T MAINTENANCE 1 2014 ECHO Inc X7502310409 29 3 After sharpening teeth check each tooth radius for evidence of a square sharp corner Use the round rat tail file to renew the radius...

Page 30: ...k at end of plug wire No spark Stop switch off Electrical problem Interlock switch Turn switch to ON See your Echo dealer See your Echo dealer Spark at plug No spark Spark gap incorrect Covered with c...

Page 31: ...p switch in the OFF position 3 Remove accumulation of grease oil dirt and debris from exterior of unit 4 Perform all periodic lubrication and services that are required 5 Tighten all the screws and nu...

Page 32: ...wo stroke air cooled engine oil Gasoline Use 89 Octane unleaded Do not use fuel containing methyl alcohol more than 10 ethyl alcohol or 15 MTBE Do not use alternative fuels such as E 15 or E 85 Oil Po...

Page 33: ...warranty period and arrange for pick up or return of your unit after the repairs have been made For your nearest authorized ECHO servicing dealer call ECHO s Dealer Referral Center at 1 800 432 ECHO o...

Page 34: ...or California Emission Defect Warranty Explanation X G Only use gasoline which contains G Gasohol which contains a 6 7 J 9 is also approved The prescribed mixing ratio of gasoline to oil is listed on...

Page 35: ...SRM 280T NOTES 1 2014 ECHO Inc X7502310409 35 NOTES...

Page 36: ...ECHO INCORPORATED 400 Oakwood Road Lake Zurich IL 60047 www echo usa com 36 S66711011610 S66711999999 S74212040475 S74212999999...

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