27TS 400
English / USA
To tension the V-belt:
: Fit the combination wrench over the 
tensioning nut as illustrated
The tensioning nut is spring-loaded: 
the combination wrench must 
therefore be held securely!
: Turn the tensioning nut clockwise.  
The spring force begins to act on the 
tensioning nut after approx. 1/8 turn 
and turns it on as far as the stop 
(approx. 1/8 turn)
Do not use force to turn the combination 
wrench further!
The V-belt is automatically tensioned 
by the force of the spring in this position.
: Remove the combination wrench 
from the tensioning nut and 
tighten the three hexagon bolts on 
the V-belt guard
Retensioning
The V-belt is retensioned without 
adjusting the tensioning nut
: Unscrew the hexagon bolts (1) on 
the V-belt guard
: The V-belt is automatically 
tensioned by the force of the spring
: Retighten the hexagon bolts
The abrasive wheels are subjected to 
extremely high loads, especially when 
cutting free-hand. 
The abrasive wheels developed by 
STIHL in cooperation with leading wheel 
manufacturers are of very high quality 
and precisely matched to the application 
in question, as well as to the engine 
power of the respective cut-off 
machines.  
They are of consistently outstanding 
quality, with high axial and radial runout.
Transport and storage
– The abrasive wheels must not be 
exposed to direct sunlight or other 
sources of heat during transport and 
storage
– Avoid knocks and bumps
– Spare abrasive wheels must be 
stored in a dry place at constant 
temperature, stacked one on top of 
the other on a flat surface, in their 
original packaging.
– Diamond abrasive wheels must not 
be stored near corrosive liquids
– Composite abrasive wheels must 
be protected against frost
338BA005 KN
1
Abrasive wheels