The tension of the tracks is
adjusted by moving the rear wheels by means of the nuts on the set screws C (fig. 5).
Should the tightening device prove to be insufficie after some use, the tracks must be
shortened. In this case the screws in the joints are removed, the ends of the tracks are
placed one over the other one more pitch and screwed together again. Then the tracks are
tightened in the usual manner with the tightenig screws.
fig 5
The tension of the tracks should be checked and
measured once a week in the following manner:
SNOW-TRAC is driven straight forward about 25 rneters or 25 yards on even ground to ensure
an even pull on both tracks. Place a straight bar 776 mm or 30" long between the
points where the track is a tangent to the large front wheel and the rear wheel in the
front track carriage (see cut). The distance between the bar and the track, when measured
at the front carrying wheel, shall be 75 mm or 3". Adjust the track tension if
necessary. After the necessary adjustments of the track tensions SNOW-TRAC is driven
another 10 meters or 10 yards forward, after which the tensions are checked again.
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