Solo 694 - Cleaning Air Filter; Replacing Spark Plug; Checking Ignition Spark

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Cleaning the air filter
C
D
3
Replacing the spark plug
Electrode gap
The electrode gap must be .020"-.030" (0,5 - 0,8 mm).
Checking the ignition spark
- Press the loosened spark plug with the firmly connected
ignition cable against the cylinder by means of insulated
pliers (not near the spark plug opening).
- ON/OFF switch in START position "I".
- Start the engine by forcefully pulling out the starter
cable.
If the function is correct, an ignition spark must be visible
near the electrodes.
- Demount the filter cover (A/1) (2 screws).
Caution: Pull the choke (A/2) to shut the choke shutter
and to prevent dirt particles from entering the carbure-
tor.
- Loosen the two screws (A/4) and remove the air filter
(A/3) from the intake stack.
- Position a screw driver between the two latches and
separate the upper and lower part by turning it.
- Clean the air filter with a soft brush.
- If the filter is very dirty, clean it in lukewarm soapsuds
with standard detergent.
- Let the air filter dry completely.
-Assemble the upper and lower part and put them on the
intake stack. Firmly tighten the screws (A/4).
If the filter is very dirty, clean it frequently (several times a
day), because only a clean air filter guarantees full engine
power.
CAUTION:
Replace damaged air filters immediately.
Torn off pieces of cloth may destruct the engine.
A
B
2
3
4
1
CAUTION:
Do not touch the spark plug or plug cap if the engine
is running (high voltage).
Switch off the engine before starting any mainte-
nance work.
A hot engine can cause burns. Wear protective gloves!
The spark plug must be replaced in case of a damage of the
insulating body, consumption of the electrodes or if the
elctrodes are very dirty or oily.
- Loosen both screws of the filter cover (A/1) and remove
the filter cover (see fig. clean air filter).
- Pull off the plug cap (C/3) from the spark plug. Only use
the universal wrench delivered with the chain saw for
demounting.
-Mount the new spark plug in the reverse order.
CAUTION: Use only the following spark plugs:
BOSCH WSR 6F or NGK BPMR 7A.
0,5 - 0,8 mm
.020" - .030"