Carburetor Adjustment; Fuel Filter; Air Filter - Efco PT 2700 Manual De Instrucciones

MAINTENANCE

Carburetor Adjustment

Before adjusting the carburetor, clean the starter cover vents as
shown in Illustration Fig. 73, and air filter as shown in Illustration
Fig. 74 (B), 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 is factory set and should not require adjusting.
The carburetor will permit only limited adjustment of the "L" (Low
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Jet) and "H" (High Jet) needles (Fig. 75). Any adjustment should
be done by a Servicing Dealer.
Under no circumstances should the "L" (Low Jet) and "H" (High
Jet) needles be forced outside the range of adjustment.
WARNING: Serious damage can occur to the engine
if improper adjustments are made to the "L" and "H"
needles. Do not force the "L" and "H" needles
outside the adjustment range in such case the
engine will not run in compliance with emissions
regulations.
74
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. 75).
• If the chain turns at idle, turn the idle speed screw "T"
counterclockwise to reduce the idle RPM and stop the chain
movement. If the pole pruner chain still moves at idle speed,
contact a Servicing Dealer for adjustment and discontinue use
until the repair is made.
75

Fuel Filter

Check the fuel filter (Fig. 76) periodically. Replace it if contaminated
or damaged.

Air Filter

WARNING: Do not clean filter in gasoline or other
flammable solvent to avoid creating a fire hazard or
producing harmful evaporative emissions.
Remove air filter cover (A, Fig. 74) and check the air filter (B) each
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day. Blow with compressed air, at a distance (Fig. 77). Reinstall
the air filter into cover. Place the air filter cover onto the pole
pruner. Tighten the air filter cover.
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.
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.
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