OPERATING INSTRUCTIONS
CONTROLS
617 TRENCHER
G
G
It should be noted that raising or lowering the trencher to change the auger
height will also change the trenching depth. You will need to compensate for this by
changing the tilt of the trencher down or up accordingly. (See Figure #3)
CRUMBER SHOE/BAR ADJUSTMENT
The purpose of the crumber shoe is to keep any loose dirt in the trench close
enough to the digging chain so that the digging teeth can grab it and remove it. This
will give you a cleaner finished trench. Your trencher has an adjustable crumber bar
that can be lengthened or shortened to bring the crumber shoe closer or farther from
the digging chain.
To adjust the crumber bar length, loosen the two jam nuts found at the end of
the mainframe crumber bar tube. Slide the bar in or out to achieve the desired
spacing (we suggest a distance of about 4" between crumber shoe and digging
teeth for best overall results). Tighten the set screws and jam nuts when finished.
(See Figure #4 on the next page)
5785
2-23-92
TRENCHER
AUGER
SPOIL
SPOIL
AUGER
FIGURE #3
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