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General| Displacement | 27.2 cc |
|---|---|
| Power Output | 0.75 kW |
| Engine Power | 1.0 bhp |
| Fuel Capacity | 0.33 L |
| Fuel Tank Capacity | 0.33 L |
| Starter System | Recoil |
| Cutting Diameter | 420 mm |
| Overall Length | 1.7 m |
| Shaft Type | Straight |
| Cutting Width | 23 cm |
| Engine Type | 2-stroke gasoline engine |
Explains meanings of pictograms attached or embossed on the machine.
Describes how steps/procedures are marked with bullets or item numbers.
STIHL's philosophy of product improvement and how to get assistance.
Read and follow safety precautions. Careless use can cause fatal injury.
Wear sturdy, snug clothing, long pants, and sturdy boots with non-slip soles.
Be in good physical/mental health, not under influence of substances, avoid fatigue.
Prolonged exposure to vibration can cause whitefinger disease or carpal tunnel syndrome.
Electromagnetic field may interfere with pacemakers; consult physician.
Wear proper protective apparel to reduce risk of injury.
Wear goggles or protective glasses with side protection; consider face shield.
Wear an approved safety hard hat to reduce risk of head injury.
Wear sound barriers to protect hearing from noise damage.
Always wear gloves for better grip and hand protection.
Wear sturdy, snug-fitting clothing, long pants, avoid loose items.
Wear sturdy boots with non-slip soles; steel-toed boots recommended.
Never modify the tool; use only STIHL authorized attachments.
Check tool condition after heavy loads or falls; ensure fuel tightness and controls work.
Never carry or transport with cutting attachment moving.
Uses oil-gasoline mixture; high-quality gasoline and two-stroke air-cooled engine oil.
Gasoline is flammable; avoid sparks, flames, and smoking.
Refuel outdoors in well-ventilated areas, engine off and cool. Release tank pressure slowly.
Wipe off spilled fuel, change clothing if fuel gets on it.
Instructions for opening and closing the toolless fuel cap.
Tighten fuel cap securely to prevent spillage and fire.
Check throttle trigger, lockout, stop switch, attachment, deflector, harness for proper condition.
Never modify controls or safety devices.
Never operate if damaged, improperly adjusted, or not securely assembled.
Ensure all required parts are properly installed; failure can cause injury.
Check for loose parts, cracks, damage; keep blades sharp.
Keep handles clean and dry for firm grip and control.
Ensure boot is securely mounted to prevent arcing and fire.
Use proper deflector, handle, and harness for cutting attachment type.
Keep deflector and skirt adjusted properly.
Shows correct rotation direction; counterclockwise when viewed from above.
Start engine outdoors, 10 ft (3m) from fueling spot on firm ground.
Ensure cutting attachment is clear of obstructions when starting.
Machine is for one person; do not allow others in work area.
Do not attempt to 'drop start' the power tool to avoid injury.
Do not wrap rope around hand; guide grip back slowly to avoid injury.
Ensure correct idle speed; cutting attachment must not move at idle.
Hold firmly with both hands; never operate with one hand.
Keep hands and feet away from cutting attachment.
Maintain footing and balance; be cautious on slippery or uneven terrain.
Do not overreach, work on ladders, or hold attachment above waist height.
Operate outdoors in well-ventilated area, good visibility, daylight conditions.
Engine exhaust contains toxic chemicals; never run indoors.
Follow chemical substance instructions if vegetation is treated.
Inhalation of dust can cause respiratory issues; control dust at source.
Do not operate using starting throttle lock; you lose engine speed control.
In emergency, shut off engine immediately using slide control or stop switch.
Attachment continues to rotate briefly after throttle release (flywheel effect).
Rotating attachment flings objects; maintain 50 ft (15m) distance for bystanders.
Examine area for stones, glass, metal, trash before starting.
Use at ground level; above ground or perpendicular use increases injury risk.
Check attachment tightness and condition at regular intervals.
Loose blade/head can vibrate, break, or fly off; ensure proper tightening.
Replace cracked, damaged, or worn attachments immediately.
Avoid cutting near fences, buildings, rocks; use nylon line heads.
Shut off engine and stop attachment before cleaning clogged parts.
Shut off engine, remove spark plug boot before replacing attachment.
Gearbox becomes hot; do not touch when hot to avoid burns.
Muffler and engine parts get hot; avoid touching when hot.
Keep muffler area clean; remove debris to reduce fire risk.
Never modify muffler; can increase fire risk and damage engine.
Muffler with converter stays hot longer; set tool down carefully.
Damaged housing/muffler can affect cooling; do not continue work.
See 'Mounting the Cutting Attachment' chapter for instructions.
Never use metal blade on FS model for which it is not authorized.
Use correct line length; deflector adjusts line to proper length.
Long line increases engine load, causes clutch slip, overheating, and damage.
Mowing heads require line-limiting blade in deflector.
Nylon line for trees/fences; PolyCut for lawn edges without plants.
Never use wire/metal-reinforced line; pieces can break off and injure.
Fresh line advances automatically; frayed line adjusted simply.
Line advances automatically by tapping on ground (TapAction).
Frayed line replaced by simple adjustment.
Has wear limit marks; do not use when worn to marks.
Ignore wear limits risk shattering; check blades for cracks; replace all if cracked.
Uses pre-cut lengths of nylon line.
Sudden motion towards operator when blade contacts rigid object; can cause loss of control.
Resharpen blades when dull; use arc motion similar to scythe.
Never use blade to cut woody materials; risk of injury from breakage.
Cuts grass/weeds; can be turned over when one side dull.
Recommended for cutting fern or reed.
Can be serviced by any qualified establishment; warranty may be denied for non-approved parts.
Use only identical STIHL replacement parts; non-STIHL parts may cause injury.
Follow manual instructions; stop engine before maintenance.
Use specified spark plug; ensure boot is snug to prevent arcing.
Never test ignition system with boot removed; can cause fire.
Do not operate with damaged/missing muffler; risk of fire and hearing loss.
Never repair damaged cutting attachments by welding/modifying; risk of parts flying off.
Keep blades sharp; tighten nuts, bolts, screws (except carburetor).
Do not clean with pressure washer; water jet can damage parts.
Store in dry, secure location; empty fuel tank for storage over a few days.
Select correct combinations from table for safety; no other combinations permitted.
Lists mowing heads (1-5) and metal mowing attachments (7-8).
Lists deflectors (9-12) for mowing heads and metal attachments.
Lists loop handle (13-15) and bike handle (16).
Lists shoulder strap (17-18) and full harness (19).
Instructions for attaching handlebar to drive tube.
Instructions for attaching the control handle and throttle trigger.
Connect throttle cable to retainer, ensuring free movement.
Instructions for attaching loop handle with barrier bar.
Instructions for attaching loop handle without barrier bar.
Lay brushcutter on its back with cutting attachment mounting face up.
Describes hardware supplied with machine or needing separate purchase.
Instructions for removing mounting hardware from the shaft.
How to insert stop pin to block the shaft for removal/installation.
Turn mowing head counterclockwise until flush; block shaft, tighten.
Block shaft, then unscrew nut.
Place attachment on thrust plate; collar must engage hole.
Fit thrust washer and rider plate on shaft.
Block shaft and screw mounting nut counterclockwise.
Line fed automatically; deflector shortens excessively long line.
Tap head on ground to feed line; avoid repeated tapping.
Refer to mowing head information sheet for other lines.
Always switch off engine before feeding line by hand.
Engine certified for unleaded gasoline and STIHL two-stroke oil mix 50:1.
Use mid-grade unleaded gasoline (89 octane); premium if lower octane.
Some additives affect elastomers, magnesium, converters; use high-quality gasoline.
Gasoline with >10% ethanol may cause problems; M-Tronic up to 25%.
Use STIHL two-stroke oil or equivalent; avoid BIA/TCW oils.
Avoid skin contact, vapor inhalation; fill canister on ground.
Mix only fuel for a few days (max 3 months); store in approved canisters.
Clean filler cap and area before fueling.
Always thoroughly shake mixture in canister before fueling.
Remove filler cap carefully to release pressure slowly.
Tighten fuel cap securely by hand after fueling.
Put on strap; adjust length so hook is below right hip.
Balance the trimmer/brushcutter.
Put on full harness; adjust strap length so hook is below right hip.
Attach carabiner to carrying ring on drive tube.
Adjust carrying ring position for balanced floating position.
Tighten screw on carrying ring firmly once correct floating position is reached.
Identifies controls: trigger lockout, throttle trigger, slide control.
Press lockout, squeeze trigger, move slide to START, release trigger.
Describes the starting throttle position after initial start.
Identifies controls: stop switch, trigger lockout, throttle trigger, tongue.
Move stop switch to I, press lockout, squeeze trigger until catch engages.
Set choke, press fuel pump bulb, continue cranking.
Place unit on ground securely; check attachment clearance.
Hold unit firmly with left hand, thumb under fan housing.
Pull grip slowly, then briskly; do not let it snap back.
Pull grip slowly and steadily; do not let it snap back.
After five pulls, move choke to ; continue cranking.
Blip throttle trigger to settle engine to idle.
Squeeze throttle trigger to disengage tongue; engine settles to idle.
Ensure carburetor is correct; attachment must not rotate at idle.
Set choke to ; start engine; 10-20 pulls may be needed.
Check spark plug, dry it, crank engine, refit plug, set choke to .
Avoid high revs for first three tank fillings; allows parts to bed in.
Allow engine to idle after long full throttle use to prevent thermal overload.
Wait for engine to cool, drain fuel tank, store in dry place.
If power loss occurs, check air filter.
Set choke, press tab, swing filter cover down; clean dirt.
Remove felt element, replace; do not wash.
Includes stopping engine, mounting attachment, checking air filter, spark arrestor.
Adjusts high speed (H) and low speed (L) screws.
Correcting setting for altitude or after changing attachment.
Turn H screw clockwise (leaner) for altitude.
Turn H screw counterclockwise (richer) for sea level.
Warm up engine before adjusting idle speed.
Turn LA screw clockwise until smooth; attachment must not turn.
Turn LA screw counterclockwise; then another 1/2-1 turn.
Adjust L screw (leaner/richer) for smooth running and acceleration.
Check spark plug if power is low, difficult to start, or runs poorly.
Replace after approx. 100 operating hours or sooner if eroded.
Move stop switch to 0; pull boot; unscrew plug.
Clean plug; check/readjust electrode gap; use resistor type plugs.
Too much oil, dirty filter, unfavorable conditions cause fouling.
Screw in plug, fit boot, press down firmly.
If behavior is unsatisfactory despite clean filter/carburetor, check muffler.
Have servicing and repair work done by authorized STIHL dealer.
Pull rope in direction specified; do not pull over edge; guide grip back slowly.
Check lubricant periodically; screw in STIHL gear lubricant tube.
Drain fuel tank, dry carburetor; clean machine, store in dry, secure location.
Use sharpening file; for wear/nicks, use grinder or dealer.
Resharpen frequently, remove minimal material; resharpen cutters uniformly.
Check cutting tool for balance after about 5 sharpenings.
STIHL recommends authorized dealer for servicing and repair.
Have pickup body in fuel tank replaced every year.
If engine has power loss, have spark arrestor in muffler checked.
Visual inspection (leaks) and cleaning before/after work, after refueling.
Check operation and clean.
Clean or replace air filter.
Clean fuel tank.
Check idle adjustment; readjust idle speed.
Readjust electrode gap; replace after 100 hours.
Visual inspection and cleaning.
Check by dealer; clean or replace by dealer.
Retighten accessible screws and nuts.
Visual inspection and replace.
Check tightness.
Sharpen metal cutting attachments.
Replace safety labels.
Diagram and list identifying main parts like Fuel Pump, Carburetor, Starter Grip.
Cutting attachment for different purposes.
Defines deflectors for mowing heads and skirt for attachments.
Metal blade on deflector to keep line at proper length.
Cutting attachment made of metal.
Displacement, bore, stroke, power, speeds, ignition, spark plug, fuel system.
Emission compliance periods for engine.
Emission compliance periods for CARB.
Single cylinder two-stroke engine.
Electronic magneto ignition, spark plug type, electrode gap.
Diaphragm carburetor, fuel tank capacity.
Lists weights for FS 55, FS 55 R, FS 55 C, FS 55 RC models.
Carry out only maintenance described in manual; other repairs by authorized dealer.
Claims accepted only if repairs done by authorized dealer with original parts.
Explains EPA regulations, warranty coverage for defects, owner responsibilities.
Two-year warranty for emission-related parts; repair or replacement free of charge.
Perform required maintenance; retain receipts; avoid abuse, neglect, improper maintenance.
Warrants engine meets regulations and is free from defects for two years.
Starts from purchase date; parts replaced at no cost to owner.
Defines warranty for parts not scheduled for replacement vs. scheduled maintenance.
No charge for diagnostic labor if part is defective; charge if non-defective.
Work done by authorized dealer free of charge if part is defective.
Lists specific emission-related warranted parts.
Bring product to authorized dealer with registration card.
Excludes coverage for abuse, neglect, improper maintenance.
Explains CARB regulations, warranty for emissions control system.
Two-year warranty for California; defective parts repaired/replaced free.
Perform maintenance; retain receipts; avoid abuse, neglect, modifications.
Warrants engine meets California regulations and is free from defects for two years.
Starts from purchase date; parts replaced at no cost.
Defines warranty for parts not scheduled for replacement vs. scheduled maintenance.
Lists specific emission-related warranted parts.
Bring product to authorized dealer with registration.
Excludes coverage for abuse, neglect, improper maintenance; adjustments with limiters are covered.
Lists registered STIHL trademarks.
Lists common law STIHL trademarks.
