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14 310538
Service
Disassemble Automatic Dispense Valve
Fig. 9
230
200
210
310
260
240
190
70
30
140
90
250
A
370
390
Snuff–Back Valve Shown
To disassemble the automatic dispense valve:
1.
Relieve automatic dispense valve pressure.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure (page 11).
2.
Make sure you have removed the dispense valve
from its mounting.
3.
Remove the cable plug from the automatic dis-
pense valve.
a.
Remove the two screws (230) from the con-
nector cover. Then remove the connector
cover.
b.
Remove the two socket head screws [Fig. 9,
Item (200)], two washers (210).The heater
cartridge (270) and
sensor (320) will come out of the dispense
valve body (Fig. 15).
4.
Remove the four socket head screws (310) and
pull cylinder cap (260) and cylinder base (240)
from the dispense valve body (190). The needle
and piston remain with the cap and base.
5.
Remove cap from base.
6.
Remove needle from either the cap or the base
(depending on which piece it went with.) When the
needle is separated from the base, the closure
spring (370) falls out.
7.
Using an o-ring pick, remove dispense valve body
seal (70).
Summary of Contents for Therm-O-Flow 194485
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