Operation Manual

21HT 70, HT 75
english
The bayonet-type oil tank filler cap with
its hinged clip can be opened and closed
without tools.
: To open the tank, swing the clip (1)
to the vertical position.
: Turn the filler cap counterclockwise
as far as stop and remove.
: Fill up with chain oil.
: To close the oil tank, place the filler
cap in position with the clip vertical,
making sure the recesses (2) are in
alignment.
: Turn the filler cap clockwise as far
as stop.
: Fold the clip down so that it is flush
with the top of the cap.
The saw chain must always throw off a
small amount of oil.
: Always check chain lubrication and
the oil level in the tank before
starting work.
Never operate your pruner without
chain lubrication. If the chain is run
dry, the whole cutting attachment
will be irretrievably damaged within
a very short time.
Inadequate lubrication can be caused by
a dirty oil strainer: Have the oil strainer
cleaned or replaced by your STIHL
dealer.
Every new chain has to be broken in
for about 2 to 3 minutes.
After breaking in the chain, check
chain tension and adjust if
necessary – see chapter
"Checking Chain Tension".
Always shut down the engine and put
on the chain guard!
: Slacken off the screw.
: Adjust shaft to required length.
: Tighten the screw firmly.
247BA011 KN
1
2
Checking Chain Lubrication
390BA048 KN
Adjusting Telescopic Shaft
(HT 75)
390BA049 KN
390BA049 KN