Operation Manual
16
english / USA
HT 73
: Fit guide bar over the stud (3). 
: Engage peg of tensioner slide in 
locating hole (4) – place the chain 
over sprocket (5) at the same time.
: Now turn tensioning screw (1) 
clockwise until there is very little 
chain sag on the underside of the 
bar – and the drive link tangs are 
located in the bar groove.
: Refit the sprocket cover and screw 
on the nut only fingertight.
Now refer to chapter
"Tensioning the Saw Chain".
Retensioning during cutting work: 
: Shut off the engine and then 
slacken the nut.
: Hold the bar nose up.
: Use screwdriver to turn the 
tensioning screw (1) clockwise until 
chain fits snugly against the 
underside of the bar. 
Tighten down the nut firmly.
A new chain has to be retensioned more 
often than one that has been in use for 
some time – check chain tension 
frequently – see chapter "Operating 
Instructions / During Operation“. 
: Check chain tension.
: Shut down the engine.
: Wear work gloves to protect hands.
: Chain must fit snugly against the 
underside of the bar and it must still 
be possible to pull the chain along 
the bar by hand.
: If necessary, retension the chain.
A new chain has to be retensioned more 
often than one that has been in use for 
some time.
Check chain tension frequently – see 
chapter "Operating Instructions“. 
1
5
243BA004 KN
4
3
Tensioning the Saw Chain
1
243BA006 KN
Checking Chain Tension
243BA005 KN










