HT 75
English
17
The fuel cap is locked
If the oil level in the tank does not go 
down, the reason may be a problem in 
the oil supply system: Check chain 
lubrication, clean the oilways, contact 
your dealer for assistance if necessary. 
STIHL recommends that maintenance 
and repair work be carried out only by 
authorised STIHL dealers.
If the fuel cap will not lock onto the oil 
tank
The base of the fuel cap is tilted in 
relation to the upper part.
N Remove the fuel cap from the oil 
tank and look at it from above
N Fit fuel cap and twist it 
counterclockwise until it engages in 
the seat of the filling port
N Continue to twist the fuel cap 
counterclockwise (approx. 1/4 turn) 
– this will twist the base of the cap 
into the correct position
N Twist the fuel cap clockwise and 
close it – see section "Closing"
The saw chain must always throw off a 
small amount of oil.
NOTICE
Never operate without chain lubrication. 
If the chain runs dry, the whole cutting 
attachment will be irretrievably damaged 
within a very short time. Always check 
chain lubrication and the oil level in the 
tank before starting work.
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 
"Checking Chain Tension".
left: Base of fuel cap is tilted – 
interior marking (1) is aligned 
with the exterior marking
right: Bottom of the fuel cap in cor
-
rect position – inner mark is 
under the grip. It does not 
align with the exterior 
marking
Checking Chain Lubrication