Vogt Tube-Ice P-24A, Service Manual

Page: 9 / 20

P24AL & P34AL Service Manual
TABLE OF CONTENTS
5/31/11
iv
Page No.
9. SERVICE OPERATIONS
Automatic Blowdown (Harvest Cycle) ..........................................................................................................................9-1
Cleaning the Ice Making Section ...................................................................................................................................9-1
Float Valve (Make-Up Water) .......................................................................................................................................9-1
Float Switch...................................................................................................................................................................9-1
Hand Expansion Valve ..................................................................................................................................................9-2
Freeze Timer..................................................................................................................................................................9-2
Freezer Pressure Switch, FIGURE 9-1 ..........................................................................................................................9-2
High/Low Pressure Switch ............................................................................................................................................9-3
High/Low Pressure Switch, FIGURE 9-2......................................................................................................................9-3
Fan Control (Cooling Tower) ........................................................................................................................................9-3
Fan Control Switch, FIGURE 9-3 .................................................................................................................................9-3
Compressor Crankcase Heater .......................................................................................................................................9-4
Oil Pressure Switch........................................................................................................................................................9-4
Oil Pressure Switch, FIGURE 9-4 .................................................................................................................................9-4
Control Circuit Protection..............................................................................................................................................9-4
Thawing Timer ..............................................................................................................................................................9-5
Thawing Timer, FIGURE 9-5........................................................................................................................................9-5
Condenser Cleaning......................................................................................................................................................9-5
Cutter Gear Reducer ......................................................................................................................................................9-6
Drive Gear Replacement................................................................................................................................................9-6
Gear Reducer Replacement ...........................................................................................................................................9-7
Water Tank and Cutter Parts Weights, TABLE 9-1.......................................................................................................9-9
Water Tank Removal .....................................................................................................................................................9-9
Cutter Assembly Removal and Installation....................................................................................................................9-10
Bearing Bracket and Cutter Disc Removal ....................................................................................................................9-10
Cutter Shaft and Bearing Removal ................................................................................................................................9-11
Cutter Shaft and Bearing Installation.............................................................................................................................9-11
Cutter Height Adjustment ..............................................................................................................................................9-12
Water Tank Installation .................................................................................................................................................9-13
P24A Cutter Assembly, FIGURE 9-5A .........................................................................................................................9-13
P24A Water Tank Assembly, FIGURE 9-5B ................................................................................................................9-14
P24A and P34A Cutter and Water Tank Part No., TABLE 9-2.....................................................................................9-15, 9-16
Cutter Ring Gear Replacement ......................................................................................................................................9-16
Cutter Blade Replacement .............................................................................................................................................9-16
Cutter Blade and Adapter Plate Adjustment, FIGURE 9-6............................................................................................9-17
Cutter Adapter Plate Installation....................................................................................................................................9-17
Pumpdown .....................................................................................................................................................................9-18
Removal of Ammonia Refrigerant from the Machine ...................................................................................................9-18