VOGT ICE TUBE-ICE P-24A, Service Manual

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P24A & P34A Service Manual
SERVICING OPERATIONS
12/18/12
9-8
Gear Reducer Replacement.
1. Disconnect and lock out all power to the machine.
2. Disconnect electrical wires and conduit from the motor.
3. Remove the top and side bolts holding the mounting plate to the support bracket and lift the plate
and gear reducer assembly from the tank bracket.
4. Inspect the drive gear teeth for proper vertical alignment and wear pattern. If the wear pattern
indicates less than a full width of tooth engagement, measure the distance so correction can be
made at the time of reassembly.
5. Measure and record either the distance of the drive gear from the mounting plate or the split hub
from the shaft end for future reference when reassembling.
6. Remove the three or four cap screws from the split taper bushing.
7. Use two of the cap screws in the threaded holes of the busing as jacking screws for pushing the
drive gear from the hub.
8. Drive a wedge in the split of the hub (bushing) and slide both the hub and gear from the shaft.
9. Remove the four hex nuts and lock washers from the carriage bolts around the reducer base and
mounting plate and separate the plate and reducer.
10. Install the replacement gear reducer and motor onto the mounting plate using the carriage bolts,
lock washers, and hex nuts. Tighten the nuts snug only for later adjustment.
11. Clean the split hub and drive gear, insert the hub into the gear, making sure the tapers of the two
match and slide the hub and gear onto the shaft.
12. Position the hub on the shaft (note measurements previously taken) so the full width of the gear
teeth will engage when assembled and tightened.
13. Tighten the cap screws (three or four) progressively and uniformly around the hub, checking the
measurements and adjusting as necessary.
14. Install the reducer and mounting plate assembly on the water tank bracket and fasten in place
with the side and top cap screws.
15. Rotate the cutter and disc assembly by hand and stop at the point where you feel the least amount
of backlash between the gear teeth.
16. If the gear tooth tip clearance needs adjusting, loosen the four hex nuts around the reducer base
and move the reducer as required for proper tooth clearance. Tighten the hex nuts securely and
recheck for backlash.
17. Reconnect the electrical wires and conduit to the motor.
18. Check cutter rotation and correct as necessary.
NOTE: When the cutter runs under a “no-load” condition, it should have a smooth uniform
sound.