Carburetor Adjustment; Fuel Filter; Air Filter - Efco 132S Operator's Instruction Manual

MAINTENANCE

Carburetor Adjustment

Before adjusting the carburetor, clean the starter cover vents as
shown in Fig. 83, and air filter as shown in Fig. 84, refer to
Operation-Starting Unit and Maintenance-Air Filter Sections for
details. Allow the engine to warm up prior to carburetor adjust-
ment.
This engine is designed and manufactured in order to comply with
EPA (Environmental Protection Agency) Phase 1 regulations.
The carburetor is factory set and should not require adjusting.
The carburetor will permit only limited adjustment of the "L" (Low
83
Jet) and "H" (High Jet) needles (Fig. 85). 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.
84
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.
85).
• 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 saw chain still moves at idle speed, contact a
Servicing Dealer for adjustment and discontinue use until the
repair is made.

Fuel Filter

Check the fuel filter (F, Fig. 86) periodically. Replace it if contami-
85
nated 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.
Completely loosen the air filter cover knob (G, Fig. 87) by turning
counterclockwise, remove air filter cover (H) and check the two air
filters (I and L) each day; shake the filters and clean with a soft
86
brush. If filter (I) heavily contaminated, clean with soapy water,
rinse and dry thoroughly prior to installing. Reinstall the air filters
into cover. Place the air filter cover onto the chain saw. Tighten
the air filter cover knob securely.
A used air filters can never be completely cleaned. It is advisable
to replace your air filters with a new one after six month of operation.
CAUTION: Never run the engine without the air filters,
serious damage could result.
Make sure the air filters is correctly placed in the air
filter cover before reassembly.
Always replace damaged filters.
Do not clean a filters with a brush.
87
en
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