Graco Therm-O-Flow 194485, Инструкция-перечень запасных частей

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Service
Replace Heater Unit or Sensor
You can replace the automatic dispense valve heater
unit or sensor without removing the automatic dis-
pense valve from its mounting bracket. You only have
to disconnect the cable connector from the automatic
dispense valve.
This procedure requires:
D
soldering iron
D
solder
D
shrink wrap
D
wire cutters
D
heat sink compound, Graco part number C07664 or
equivalent. Check with the material supplier for a
compatible compound.
1. Perform the procedures in Preparing to Service
Automatic Dispense Valve on page 12.
2. Remove the cable receptacle from the automatic
dispense valve.
a. Remove the two screws from the connector
cover [Fig. 9, Item (230)] and remove the
receptacle cover.
b. Remove the two socket head screws [Fig. 14,
Item (200)], two washers (210). The heater
cartridge (270) and sensor (320) will come out
of the dispense valve body.
Fig. 14
200
210
3. Remove old heater cartridge or sensor.
a. Locate the leads to the part you are replacing.
b. Remove the shrink wrap from the leads.
c. Unsolder the leads from the connector. Cut the
leads on 8 pin models, leaving enough to strip
and solder the leads.
4. Install new heater unit or sensor:
Fig. 15
270
Heater
320
RTD Sensor
390
A
E
B
F
C
D
6 Pin 120 Volt
Shown
Fig. 16
320
270
8 Pin 240 Volt Shown
2
a. Install the shrink wrap over the leads.