Digga HP450, Operator'S Manual, Page: 19 / 37

OPERATING INSTRUCTIONS
NOTE: Hydraulic cylinders tilt the p
rofiler
, adjust the depth of both the left and right side of the
planer individually, and also shift the p
rofiler
to the left or right.
3. Increase engine RPM and with the drum turning you can make any necessary
adjustments to the side shift. Do not side shift the road profiler during milling operation.
Once the desired side shift position has been achieved you are ready to begin. The
drum will not cut in a side to side motion. Tilt and Depth control can both be activated
during milling.
IMPORTANT: The drum MUST be turning to make any hydraulic adjustment to the profiler.
4.
Position the profiler at the desired starting point. Set the left and right depth gauge to the
desired depth mark on the
profiler
. Maximum depth of each cut is determined by the type of
material, the horsepower of the skid steer being used and the size of the p
rofiler
. It is
recommended for maximum performance that you start at approximately 19-25mm in concrete
and 38-50 mm in asphalt.
5.
With the engine at full RPM and the p
rofiler
rolled back, lower the loader arms completely down
and slowly roll out the p
rofiler
until the weight of the p
rofiler
is resting on the rear wheel
assemblies. Continue to exert down pressure by rolling the loader forward until the front wheels
of the p
rofiler
are on the ground and the front wheels of the skid steer are raised approximately
50-
75mm off the planing surface to assure sufficient pressure for stable operation.
NOTE: It is recommended to try a sample cut until the desired depth is achieved.
6. Slowly advance forward.
NOTE: If drum stalls you have been traveling too fast or cutting too deep. Back out of the cut until the
drum restarts (make necessary adjustments) and then continue operation.
NOTE: If the drum tends to ride up out of the cut, decrease travel speed, be sure the p
rofiler
is level
(front to back) and exert down pressure until the p
rofiler
is riding on the wheel assemblies. For
optimal cutting and reduced vibration, maintain down pressure on the p
rofiler
with all four p
rofiler
wheels on the ground when cutting.
NOTE: Avoid side to side movement while planing as this may cause excessive drum wear or
planetary failure.
7. When you have reached the end of the pass, stop the skid steer and raise the p
rofiler
out of the
cut. Reposition skid steer for the next cut and repeat steps 4, 5 & 6. If you are not starting a
new cut, raise the profiler and retract the drum into the profiler housing using the depth control
cylinders. Do not transport the p
rofiler
with drum turning.
PM-000068-A DECEMBER 2017
17