probst SH-3500-B Operating Instructions Manual page 200

37Z4V6000.fm Page 12 Tuesday, March 7, 2017 3:24 PM
Low Profile Types
1. Unsnap the air cleaner cover
clips, remove the air cleaner
cover, and remove the air
filter element.
2. Wash the element in a
solution of household
detergent and warm water,
then rinse thoroughly, or
wash in non-flammable or
high flash point solvent.
Allow the element to dry
thoroughly.
3. Soak the air filter element in
clean engine oil and squeeze
out the excess oil. The engine
will smoke during initial
startup if too much oil is left
in the element.
Clean Squeeze and dry
Do not twist.
4. Reinstall the air filter element and the cover.
SEDIMENT CUP
Cleaning
Gasoline is highly flammable and explosive, and you
can be burned or seriously injured when handling fuel.
• Stop the engine and let it cool.
• Keep heat, sparks, and flame away.
• Refuel only outdoors.
• Wipe up spills immediately.
1. Move the fuel valve lever to the OFF position, and then remove
the sediment cup, O-ring and filter.
2. Wash the sediment cup and filter in non-flammable solvent, and
dry it thoroughly.
FILTER
(Viewed from the bottom)
Align
3. Reinstall the filter, new O-ring, and the sediment cup. Tighten
the sediment cup securely.
12
4. Move the fuel valve lever to the ON position and check for
CLIP
AIR CLEANER COVER
SPARK PLUG
Spark Plugs:
This spark plug has the correct heat range for normal engine
operating temperatures.
CLIP
An incorrect spark plug can cause engine damage.
AIR FILTER ELEMENT
For good performance, the spark plug must be properly gapped and
free of deposits.
1. Disconnect the spark plug cap,
2. Remove the spark plug with a
Dip in oil Squeeze
3. Inspect the spark plug.
Do not twist.
4. Measure the spark plug
5. Install the spark plug carefully,
6. After the spark plug is seated, tighten with a 21 mm (13/16 in)
7. Attach the spark plug cap to the spark plug.
OFF
FUEL VALVE LEVER
FILTER
O-RING (Replace)
SEDIMENT CUP
ENGLISH
leaks.
BPR6ES (NGK)
W20EPR-U (DENSO)
and remove any dirt from
around the spark plug area.
21 mm (13/16 in) spark plug
wrench.
Replace it if damaged or badly
fouled, if the sealing washer is
in poor condition, or if the
electrode is worn.
electrode gap with a wire-type
feeler gauge. Correct the gap,
if necessary, by carefully
bending the side electrode.
The gap should be:
0.7–0.8 mm (0.028–0.031 in)
by hand, to avoid
cross-threading.
spark plug wrench to compress the sealing washer.
When installing a new spark plug, tighten 1/2 turn after the
spark plug seats to compress the washer.
When reinstalling the original spark plug, tighten 1/8–1/4 turn
after the spark plug seats to compress the washer.
TORQUE: 18 N∙m (1.8 kgf∙m, 13 lbf∙ft)
A loose spark plug can overheat and damage the engine.
Overtightening the spark plug can damage the threads in the
cylinder head.
SPARK PLUG WRENCH
SIDE ELECTRODE
0.7–0.8 mm
(0.028–0.031 in)
SEALING
WASHER