Maintenance
Waukesha Cherry-Burrell
Page 50
95-03057
11/2012
Heat Exchanger Tube Removal - Horizontal Unit
DANGER:
Before doing any
maintenance work on the
Votator II, lock out and tag out
equipment.
1.
Check to insure all supply lines to unit are closed and locked
and tagged out.
2.
Make sure that entire unit is purged of fluids (product,
coolant, refrigerant, etc.)
3.
Remove mutator shaft and drive end head as described in
this section.
DANGER:
Before removing the
heat exchanger tube from the
jacket, all refrigerant must be
evacuated from the jacket
assembly.
4.
Remove locking latch and associated hardware that holds
front cover in place.
5.
Remove the eight (8) 3/8-inch bolts that hold removable tube
to jacket. See Figure 39.
6.
Take four (4) bolts and thread them into the “B” holes. The
“B” holes are located at the 12, 3, 6, and 9 o’clock locations.
DO NOT TIGHTEN!
7.
Using an X pattern, gradually tighten bolts to withdraw tube
from jacket. Considerable effort may be needed to overcome
any stickiness.
If tube does not start to pull away from jacket as bolts are
tightened, stop and do the following:
•
Make sure product head on drive end is removed.
•
Place a block of wood across drive end of tube and apply
pressure to force tube opposite the drive end.
•
When tube is loose, use bolts to complete removal.
•
If tube cannot be budged, contact SPX.
8.
Pull tube out of jacket. Care should be taken to avoid marring
jacket cylinder during heat transfer tube removal. Mark tube
and jacket so that tube can be reinstalled in same jacket. See
Figure 40. On BWS or liquid units, install a new packing ring.
Figure 39 - Removal of Tube to Jacket
Bolts
Figure 40 - Tube Removal
