Lubricating The Gearbox - Stihl FS 85 Instruction Manual

English
20.2 Checking the Spark Plug
► Clean dirty spark plug.
► Check electrode gap (A) and readjust if neces‐
sary – see "Specifications".
► Rectify the problems which have caused foul‐
ing of the spark plug.
Possible causes are:
– Too much oil in fuel mix.
– Dirty air filter.
– Unfavorable running conditions.
WARNING
Arcing may occur if the adapter nut (1) is loose
or missing. Working in an easily combustible or
explosive atmosphere may cause a fire or an
explosion. This can result result in serious inju‐
ries or damage to property.
► Use resistor type spark plugs with a properly
tightened adapter nut.
20.3 Installing the spark plug
► Screw home the spark plug, fit the boot and
press it down firmly.
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21 Lubricating the Gearbox

A
Check grease level after every 25 hours of oper‐
ation and re-lubricate if necessary.
► Remove the screw plug (1).
► If no grease can be seen on the inside of the
screw plug (1): Screw the tube (2) of STIHL
gear lubricant (special accessory) into the filler
hole.
► Squeeze no more than 5 g (1/5 oz) grease into
the gearbox.
NOTICE
Do not completely fill the gearbox with grease.
1
► Unscrew the tube (2).
► Insert the screw plug (1) and tighten it down
firmly.
21 Lubricating the Gearbox
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