Scheduled Maintenance - SPX Votator II Instruction Manual

Scraped surface heat exchanger
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Maintenance

Scheduled Maintenance

Frequency
Component
Weekly
Mutator Shaft
Bearing
Shaft
Assembly
Product Tube
Scraper
Blades
Jacket/
Accumulator
Monthly
Inlet and
Outlet Fittings
Gear motor
Semi-
Refrigerant
Annually
Flange O-rings
Page 40
end of the shaft. Slide the bearing race over the tool and onto
the shaft to protect the stationary seal face during assembly.
16. Seat the bearing in the head, using a plastic mallet, if
required.
17. Install shaft locknut and bearing cap, position product head
over bayonet ring and turn counter-clockwise. Close locking
latch.
18. Grease bearing. (Not required for Extra Heavy Duty
Votator II.)
The following table is provided only as a guideline. It may be
necessary to modify the schedule to conform to actual
in-plant requirements. All changes should be documented by
plant personnel.
Table 5: Table of Scheduled Maintenance
Suggested Service
Lubricate each fitting with a handgun, approximately three shots.
Use a suitable NLGI Grade-2 bearing grease. (Not required for Extra
Heavy Duty Votator II.)
Remove shaft assembly at least once a week. Always use the removal
trough skid to avoid bottom blades scoring the heat transfer tube.
Replace the mechanical seal shell O-rings.
Inspect the tube's inner chrome surface to be sure it is smooth and bright.
If rough areas, marks or chrome plating deterioration exist, locate and
correct the cause. Replace the tube, if necessary.
Examine scraper blades weekly, or after 40 operating hours. Based on
amount of wear, establish service frequency.
Maintain blades in good condition for longest machine life and best
production rates. Reserve a complete set of spare blades for routine
replacement. Worn or rough blades reduce heat transfer and can damage
the heat transfer tube.
Purge gathered oil from accumulator section of accumulator jacket. If
ammonia charge is dumped from accumulator daily, oil is carried back
with it.
Replace O-rings on inlet and outlet fittings monthly, or more frequently as
needed.
Check oil level and add as required.
Inspect for oil and/or contaminants.
Replace O-rings at least every 12-18 months.
95-03057
Waukesha Cherry-Burrell
11/2012

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