Graco Therm-O-Flow Plus, Инструкция по эксплуатации

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57 309085
Service
Replacing Heat Sensors
Perform the following procedure to replace a sensor:
WARNING
The material and equipment will be
hot! To reduce risk of injury, wear eye
protection, gloves and protective clothing
when installing, operating, or servicing
this dispensing system.
1. If the material drum has already been removed
from the supply unit, go to step 2. If you need to
remove the material drum, perform steps 1
through 7 of the
Drum Changing procedure in
Graco form 309180, Installation and Operation
Guide .
2. Make sure the ram plate is down and the ram hand
valve is in the OFF position (Fig. 14).
WARNING
ELECTROCUTION HAZARD
To reduce risk of injury or damage to
equipment, make sure the main discon-
nect is OFF before continuing with this
procedure.
3. Turn OFF the main electrical disconnect.
4. Turn the system HEAT ON switch to OFF.
5. Loosen the conduit locknut (312).
6. Remove the sensor (309) from the ram plate.
7. Loosen the cord grip, located under the junction
box.
8. Remove the junction box’s cover.
9. Disconnect the two sensor wires from the junction
box. See Fig. 17.
Fig. 17
FS1 FS2
9520A
10. Connect the two wires from the new sensor to the
terminals in the junction box.
11. Replace the junction box cover.
12. Coat the sensor with non-silicone heat-sink
compound.
13. Slide the cord grip o-ring back into the cord grip
and then tighten the cord grip underneath the
junction box.
14. Slide the new sensor into the sensor opening in
the ram plate.
15. Tighten the conduit locknut (312).