14
PM-000005 - Trencher Operators Manual - December 2012
CHAIN ADJUSTMENT
1. To either adjust
chain or remove chain
– remove the ½" Bolt
holding spanner to
outer boom.
2. Use spanner supplied to
wind adjuster nut clockwise
for loosening, anti
clockwise for tightening.
3. To achieve the cor-
rect chain tension: Adjust
the tension on the lower
chain section at the mid-
way point between the
sprockets to allow 15mm
of vertical movement.
Chain
midway point
between sprockets
15m m
5 mainTenance
SCRAPER ADJUSTMENT
1. The adjustment of the scraper/chain
gap via the inner danger bar is done by
removing the bolt with two ¾" spanners
at the end of the outer danger bar. The
inner danger bar is moved out and the
bolt relocated in the second or third hole.
2. The three holes in the inner
boom to allow for Scraper
adjustment. The hole indicated is
the setting from the factory.
3. Use these holes to adjust the
scraper distance when the gap
becomes less than 100mm.
4. The gap between the chain
teeth and scraper plate should
be at least 100mm to prevent
any binding.
100m m
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