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AEC/Application Engineering
•
6-4
Corrective Maintenance
•
•
Pumps and Seals
Each TOH unit is completely tested and calibrated before leaving the factory. The unit is then
cooled, drained, and packed for shipment. If the unit stands idle for a long time before being
installed in your factory, gaskets can
dry
out and possibly leak when you start the unit. In most
cases, these gaskets soon swell and form a tight seal. If not, you may need to tighten the bolts to
stop the leak.
Similarly, rough handling in shipping may sometimes cause minor leaks upon startup; you may
need to re-tighten bolts or fittings to stop the leak.
You should expect to periodically replace the pump seal. If the pump is properly lubricated and
used at moderate temperatures, the seal should last several years. The pump insert in this manual
describes the proper procedures for replacing the seal (Mechanical seal, Pt. No. 162-00030- I 60).
Periodic replacement of the pump drive V-belt is also to be expected. Review the following
tables for V-belt part numbers:
~~·
...
.
....
---.'
~~00·1···
.:
" . . .. e
s~·.
·
,lfm.~-r~-,~·:-i
. · . ' .
r
-~·~
.....
"i!..-...
•L
•o'.-
~I_
'
~
,
· . · ·
Ftow::1rr1Jpm1iffiPi'eSi~~l~
imv~Bel$>.,ii'flNumber,-,
18@30
1 00-00033-00
18@50
100-00025-00
24@30
100-00025-00
24@50
100-00025-00
~:t~~,~~'~''
·
"'~t.IS!MOdelsrt~,.
'~~;.;,r.,;,-l><''1i'
,. · ..
'•-·
~
•
• -
t:: •-
7·
~:'2"""!.':-. -~
•.
~If>'
)
.
:,ftow.ln'gpm'afiPressufi!11i:iii>SI':'! ·
~v ~sett1eiltl)liimb8r.'
18@30
1 00-00033-00
18@50
1 00-00025-00
24@30
1 00-00025-00
24
(<X!
50
1 00-00025-00
50@30
100-00188-00
50@50
100-00188-00
Note: If the pump motor wiring is disconnected for removal from the unit, you
must
check the
actual direction ofrotation when the motor is rewired to the unit. See Figure 5, Drawings
I and 2 on Pages 23 and 24 for more information .
TOH TrueTemp"' Series Hot Oil Temperature Control Units
Page47
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