Service - 17
SERVICE
Cleaning and General Maintenance
For best results, and to maintain the nish of the
stump grinder, clean or wash the stump grinder to
remove accumulated wood chips, debris, and dirt
when the job is nished.
Belt Inspection
Inspecting the drive belts of the stump grinder can
prevent sudden belt failure by nding problems
before they cause a belt to break.
Typical wear
on a drive
belt may
result in the
conditions
shown in the
diagram. If
any of these
conditions
occur, the drive belt will require replacement.
Belt Tension Adjustment
Occasionally the 3) cutter head drive belts may
need to be tightened. The following procedure
MUST be used in order to keep the cutter head and
shaft in line with the frame.
1. Park the power unit on a level surface and
engage the parking brake.
2. Shut o the power unit engine and remove the
key from the key switch.
3. Loosen the four nuts (A) on the bearings on
either side of the cutter head.
4.
A
A
B
D
Loosen the locking nut (C) on the back of the
right adjustment plate. Loosen the locking nut (D)
on the front of the left adjustment plate.
5. Tighten the belts by tightening the nut (B) on the
front of the right adjustment plate while loosen-
ing the nut (E) on the back of the left adjustment
plate accordingly. ALWAYS adjust the nuts (B & E)
equally, so that the rotor shaft remains parallel to
the gearbox shaft.
6. After the belts are tight, tighten the locking nuts
(C & D).
7. Tighten the 4) nuts (A) on the bearings.
Always set the parking brake, shut o power
unit engine, remove the ignition key, and ensure
all moving parts have come to a complete stop
before inspecting components or attempting any
repair or adjustment.
Attention
If any component requires replacement, use only
original Ventrac replacement parts.
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