You can check the
elongation of the chain
through the slot (A) in
the housing element. The
lever of the chain tensioner
moves down as the chain
length increases, from
top (new/short chain)
to bottom (elongated
chain). The chain must be
shortened once the lever
in the slot is no longer
visible. Exchange the chain
if the admissible elongation
of the chain (= 3% of the
original length) is exceeded.
You can check the
elongation of the chain
based on the state of the
tension lever (X) of the
chain tensioner. The tension
lever (X) moves down as
the chain length increases,
from top (new/short chain)
to bottom (elongated
chain). The chain must
be shortened once the
tension lever (X) is in the
lowest position. Exchange
the chain if the admissible
elongation of the chain
(= 3% of the original length)
is exceeded.
10.4.7
Checking the chain elongation for
BS 2/C-100, BS 2/C-250
Fig. 26: Checking the chain elongation for "small" drive head
10.4.8
Checking the chain elongation for
BS 2/C-H, BS 2/R-H, BS 2/R-V-1200
X
Fig. 27: Checking the chain elongation for "large" drive head
Maintenance and Repair
BS 2/R-300, BS 4/R-300, BS 2/R-700, BS 4/R-700
,
A
B
3 842 358 724/2013-04, MIT: BS 2/C-... + BS 2/R-..., Bosch Rexroth AG
45/76
547 601-71
547 601-70