Carburetor Adjustment; Fuel Filter; Air Filter; Starter Unit - Efco DS 2800 Manual De Instrucciones

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MAINTENANCE

Carburetor Adjustment

Before adjusting the carburetor, clean the cover vents as shown in
Illustration Fig. 60, and air filter as shown in Illustration Fig. 61,
refer to Operation-Starting Unit and Maintenance-Air Filter
Sections for details. Allow the engine to warm up prior to
carburetor adjustment.
This engine is designed and manufactured in order to comply with
EPA (Environmental Protection Agency) Phase 2 regulations.
The carburetor (Fig. 62) is designed to permit only the adju-
stement of L and H screws in a range of a quarter round; the
quarter round the hall range admissible for L and H screws is
60
determined by the manufacturer and you can not modify it.
WARNING: Donʼt try to force the screws outside the
range!
WARNING: Donʼt modify the carburetor in any way in
such case the engine will not run in compliance with
emissions regulations.
Idle Speed Adjustment
• If the engine starts, runs, and accelerates but will not idle; turn
the idle speed screw "T" clockwise to increase idle speed (Fig.
62).
• If the cutting attachment turns at idle, turn the idle speed screw
61
"T" counter-clockwise to reduce the idle RPM and stop the
cutting attachment movement. If the cutting attachment still
moves at idle speed, contact a Servicing Dealer for adjustment
and discontinue use until the repair is made.
• Screw L must be adjusted so that the engine promptly
responds to sharp accelerations and gives good idle operation.
• Screw H must be adjusted so that the engine gives maximum
power during the cutting phase.

Fuel Filter

Check the fuel filter (Fig. 63) periodically. Replace it if
contaminated or damaged.
62

Air Filter

WARNING: Do not clean filter in gasoline or other
flammable solvent to avoid creating a fire hazard or
producing harmful evaporative emissions.
If a power drop is noticed, check the air filter.
Open the air filter cover and check the air filter (C, Fig. 64) each
day, change the filter if not clean or damaged. Blow with com-
pressed air, at a distance, from outward (Fig.65). Reinstall the air
filter into cover. Place the air filter cover onto the brush cutter.
Tighten the air filter cover screw securely.
A used air filter can never be completely cleaned. It is advisable to
replace your air filter with a new one after six month of operation.
63
Make sure the cover and the support are clean before fitting the
new filter.
CAUTION: Never run the engine without the air filter,
serious damage could result.
Make sure the air filter is correctly placed in the air
filter cover before reassembly.
Always replace damaged filters.
Do not clean a filter with a brush.

Starter Unit

WARNING: The coil spring is under tension and
64
could fly apart causing serious injuries. Never try to
disassemble or modify it.