Waukesha Cherry-Burrell
Maintenance
11/2012
95-03057
Page 45
Jacket Side
For Units Using Steam, Water, Or Liquid
The jacket side of the heat transfer tube has a sealed cover that
allows the media flow to circulate around the tube. If it becomes
coated with foreign matter and heat transfer is reduced, it can be
cleaned by pumping a detergent solution compatible with the
carbon steel jacket at a rate of about 100 gpm. The frequency of
this cleaning process will vary greatly from one installation to
another.
For Units Using Refrigerant
The jacket side of the heat transfer tube will become fouled with
oil and sludge over time and prevent efficient heat transfer. This
tube does not have a sealed flow spiral and can be cleaned by
removing it from the jacket. It should be removed for cleaning
every 12 to 18 months.
NOTE:
If you plan to clean the tube with anything other than the
materials and methods mentioned previously, please contact
Customer Service.
Cleaning the Flanges
Remove the O-rings and clean the grooves thoroughly of all
residue and buildup. Care must be taken in cleaning the flanges,
as they are part of the seal mechanism of the unit.
Install new O-rings any time the unit is disassembled.
NOTE:
Replace the O-rings every 12-18 months.
Lubricate the O-rings.
Leak Testing
Each cylinder is thoroughly tested for leaks at the factory. It is
necessary to check for leaks in the refrigeration system any time
the piping is opened to the atmosphere for maintenance or repair.
WARNING:
Do not open valves or check for leaks until the
electrical system checkout is completed. Personnel must
wear safety goggles and protective clothing.
Scraper Blade
Maintenance
Blade Inspection
The blades should be inspected for wear and signs of fatigue or
cracking at the pin location and should be replaced if damage has
occurred. Failure to replace damaged blades may result in
breakage, which can damage other blades or the heat transfer
tube, and result in blade particles in the product.
CAUTION:
High concentrations of acid or caustic should
be avoided if plastic scraper blades are used. Cleaners
should be compatible with the elastomers in the heat
exchanger.
