Section 3: Adjustments
2/15/18
15
Impeller Blade Adjustment
Refer to Figure 3-4:
Each ditcher blade needs to be rotated blades wear.
Replace the ditcher blade after all its four corners are
worn out. Rotate a ditcher blade to one of its four blade
positions as follows:
•
First blade position is with ditcher blades (#4) mounted
with surface “A” up as shown in Figure 3-4.
•
Second position is with blades rotated 180
o
clockwise
and reattached to impeller with surface “A” still up.
•
Third position is with blades rotated 180
o
upside down
and reattached to impeller with surface “B” up.
•
Fourth position is with blades rotated 180
o
clockwise
and reattached to impeller with surface “B” still up.
WARNING
!
To avoid serious injury or death:
Do not operate ditcher with out-of-balance blades. Make
certain all blades are installed using the same mounting holes
for either 16" diameter impeller or 18" diameter impeller.
1.
Remove hex flange lock nuts (#3) and Carriage
bolts (#2).
2.
Rotate blades to one of the four position outlined
above and reattach with 1/2"-13 x 1 1/2" GR5
carriage bolts (#2) and hex flange lock nuts (#3)
using either holes “C” for 16" diameter impeller or
holes “D” for a 18" diameter impeller.
3.
Tighten lock nuts (#3) to the correct torque.
Ripper Depth Adjustment
Refer to Figure 3-5:
The Ripper is designed to tear up hard ground for easier
ditching.
Adjust ripper shank (#1) down to holes “A” when impeller
blades are installed at 18" diameter or up to holes “B”
when blades are installed at 16" diameter. See
above to determine the diameter the
impeller blades are installed.
1.
Remove hex head cap screws (#2).
2.
Move ripper shank (#1) down to holes “A” when
impeller is set at 16" diameter or up to holes “B” when
impeller is set at 18" diameter.
3.
Secure ripper shank (#1) with 1/2"-13 x 2 1/4" GR5
hex head cap screws (#2) and flange lock nuts (#3).
4.
Tighten lock nuts to the correct torque.
IMPORTANT:
Fasten blades to Impeller using
holes “C” for 16" diameter impeller and holes “D” for
18" diameter impeller.
Impeller Blade Adjustment
Figure 3-4
Ripper Depth Adjustment
Figure 3-5
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