INSTALLATION
Careful and accurate installation is very essential for
trouble free operation and long life. The following instructions
should therefore be
carefully observed.
a) Shaft Alignment
Make sure that all shafts are parallel and level. Check
alignment with a spirit level. The shafts should be supported
by sufficiently
strong bearings to avoid any displacement during operation.

b) Installation of
Sprockets
Align the sprockets exactly on the shafts. Check with a
straight edge of a string held against the sides of the
sprocket face. Improper
alignment of sprockets will cause abnormal wear on the chain
link plates and on the sides of the sprocket teeth.
Check occasionally during operation for such wear.

c) Mounting of Chain
Wrap the chain around the sprockets and bring the two ends
together on one sprocket to connect them with a connecting
link.
d) Chain Tension
The chain should never run with both sides tight. To check
tension, turn one sprocket to tighten the lower span of
the chain.
Then measure the sag of the lower strand which should be
about 2 to 3% of the tangent to the sprockets. In an inclined
drive the sag
should be less. In vertical drives a chain tensioner must
be provided for.
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