Digga HP450, Operator'S Manual, Page: 27 / 37

MAINTENANCE & SERVICE
CHANGING THE DRUM
Due to the weight of the unit, place the profiler in a convenient location with a hoist available for
lifting the profiler off the drum.
1. Remove the right side plate by first removing the two bolts in the retainer and then loosen
the ten .50" bolts on the clamp plates. Slide the right side plate off.
LOOSEN BOLTS ON CLAMP
PLATE
RIGHT SIDE PLATE
2. Remove the eight M16 hex nuts
securing the drum to the planetary.
3. Using a pry bar, pry the drum off of the
planetary and slide out until the drum
clears the planetary. Lift the profiler off
of the drum.
4. Install the new drum by positioning it
over the studs on the planetary and
installing the existing M16 hex nuts
using Locktite 271 (Red) and torquing
to 210Nm (155 ft. lbs.)
5. Reinstall the right side plate.
REMOVE RETAINER
LOOSEN BOLTS ON CLAMP
PLATE
INSIDE OF DRUM
M16 HEX NUTS
PRY DRUM OFF OF PLANETARY
PRY BAR
CHANGING THE PLANETARY
To gain access to the planetary the drum must first be removed. Follow the above procedure for
removing the drum.
1.
Tag and disconnect the power and return hoses along with the case drain hose from the
hydraulic motor and plug the motor ports to prevent contaminates from entering the hydraulic
system.
2.
Remove the .62" bolts securing the planetary to the profiler and remove the planetary.
PM-000068-A DECEMBER 2017
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