Temptek VETERAN LS Series, Instruction Manual

Page: 36 / 80

Temperature Control Units : With ‘LS’ Series Instrument
Page: 36
TEMPTEK, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-6352 Fax: 317-881-1277
Service Department Fax: 317-885-8683
www.Temptek.com
5.1 PUMP SEAL REPLACEMENT
A. The pump seal is a
carbon/ceramic shaft
seal assembly including
a stationary member,
rotating member and
tension spring (figure
5.1A).
B. The life cycle of
the pump seal is
determined by hours
of use, operating
temperature and water
quality. Poor water quality is the
primary reason for premature pump
seal failure.
D. The operator should follow this
procedure to replace the pump
seal:
1. Disengage process
operations and relieve all
system pressure.
2. Disengage main power
supply. Verify the Power
light on the display is “off”.
3. Remove the lift-off access
panel and set aside (Figure
5.1B).
4. Remove the thermoformed
panel. It is attached to the
stainless steel cabinet by 4
small screws (figure 5.1C).
5. Drain machine by removing
the pump casing drain plug.
6. Remove the three motor
wire leads from the motor
wiring terminals. The
operator should “map” the
wire terminal locations to
ensure correct rewiring.
The power cord should be
removed from the motor
housing (figure 5.1D).
Stationary member
Rotating Member
Tension Spring
Figure 5.1A
Remove lift-off access panel
Figure 5.1B
Thermoformed panel
removed and electrical
cabinet open.
Figure 5.1C
Motor leads
Figure 5.1D