Graco 334130A, Instructions-Parts List Manual

Page: 47 / 108

Repair
6. Disconnect the platen RTD wires from pin 3 and
pin 6 from the J5 connector on the AWB.
Figure 28 RTDWire Connections
2760 Red
2770 White
2790 White
7. Attach the leads from the new sensor to the leads
of the old sensor and pull the new sensor leads
through the cable pump shield, cable track, and
into the electrical enclosure.
8. Install the new sensor (605) into the follower/tire
plate after coating with non-silicone heat sink
compound. Tighten compression nut. Ensure
RTDis fully inserted.
9. Connect the red and white wires from the new
sensor to the J5 connector on the AWB.
10. Replace the pump covers.
Separate the Air Motor and Pump
This procedure must be done with the unit still
warm. The material and equipment will be hot!
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 6 of the Change Drums, page 38 . Pump
must be in the full down position (air motor shaft
fully extended).
2. Make sure the ram plate is down and the ram
director valve (CC) is in the neutral position.
3. Follow Pressure Relief Procedure, page 36 .
4. Bleed off excess material and pressure in
the system by opening the dispense gun and
catching the material in a waste container.
5. On ADM, turn off the system heat (D).
6. Turn the main power switch off.
7. Disconnect all material hoses.
8. Remove the pump sheet metal enclosure.
a. Remove the cover screws.
b. Remove the heater bands and disconnect
the ground wire.
9. If vent hood is installed, remove it.
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