Instruction Manual

6
3. STIHL Harvester Saw Chain
Tie straps
40 RMH:
Symmetrically shaped running faces. The tie straps are
non-directional.
40 RMHS:
Wear surface is increased by asymmetrically shaped
running faces. This greatly reduces the pressure on the
tie straps and prolongs the service life of the chain. Owing
to the different sizes of the running faces, the tie straps
are directional, i.e. there are left-hand and right-hand tie
straps.
Drive links
The drive links are reinforced in the area of the rivet holes.
The part of the drive link that runs in the bar groove, the
tang, is stepped – 2.0 mm (0.080 in.) drive link gauge.
Reduced stress
All heavily stressed parts of the STIHL RMHS have been
specially strengthened. This means that the forces acting
on the drive links, tie straps, cutters and rivets can be
better spread over the whole chain. The strengthened
STIHL RAPID
™
Micro
™
Harvester Special (RMHS)
therefore has an up to 70 % longer service life than
conventional harvester chains with a 2.0 mm (0.080 in.)
drive link gauge.
RMHSRMH