Vogt Tube-Ice HFO10, Service Manual

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7-10
Weekly Checklist
 Weekly or Monthly Calibration and operation of all controls (high- and low-pressure switches, oil
pressure switch, etc.) are within limits.

Cooling tower spray nozzles and pump suction screen are free of scaling and algae (consult water
treatment suppliers for corrective measures).

Water distributors at the top of the freezer are free of scale accumulation.

Remove solids that have collected in the water tank.

Check all motor drive units (compressor, pump motors, cooling tower fan, and pump, etc.) for abnormal
noise and/or vibrations.
 Observe one complete ice making cycle, record data, and compare with the Warranty
Registration/Start-Up Form .
Monthly or Yearly Checklist

Check entire system for leaks.

Check system for leaks after 400 hours or 4 weeks of operation.

Drain water from the condenser and cooling tower and check condenser tubes. Inspect for damage by
corrosion or scale.
 Remove all rust from all equipment, clean, and paint.
 Check all motors for shaft wear and end play.

Check operation and general condition of all electrical controls, relays, motor starters, and solenoid
valves.

Observe one complete ice making cycle, record data, and compare with the Warranty
Registration/Start-Up Form .

Change oil in cutter motor gear reducer.
Warning: Pressure relief valves must be replaced after 5 years of service. Before replacing relief valves,
review requirements per current local and national codes. Valve replacement should be performed only by
service personnel experienced and certified in refrigeration and qualified to work with high-voltage electrical
equipment. If a relief valve discharges, the valve must be replaced before putting the machine back into service.
Relief valves do not properly reseat after a discharge event. Contact Vogt SuperCare Customer Service for
replacement valves.