Graco InvisiPac HM10 Instructions Manual page 99

Disconnect the Heater Rods
1. Prepare for Melter Pump Repairs, page 88.
2. Access the Electrical Enclosure. Follow the steps
on page 83.
3. Remove the heater rod wires from AMZ terminal
J24 pins 1-2 or 5-6.
4. Allow the melter to cool to a safe, warm
temperature just below the adhesive melting point.
Replace a Heater Rod
Melter Heater
F . 88: Heater Rod Location
IG
1. Disconnect the Heater Rods. Follow the steps on
page 99.
2. Disconnect the Melter Pump Assembly from the
System. Follow the steps on page 89.
3. Remove the Melter Plate. Follow the steps on
page 91. Retain the insulators (634) for reassembly.
4. Remove the internal retaining ring (624) and slide
the heater rod (623) out of the housing bore.
5. Insert new heater (623) into the housing bore.
6. Replace internal retaining rings (624).
Connect the Heaters Rod Wires to the AMZ
1. Access the Electrical Enclosure. Follow the steps
on page 83.
2. Thread the heater rod wires through the melter
base plate (635) grommets.
3. Pull the heater wires through the grommet into the
electrical enclosure.
3A7259C
Pump Heater
623
624
4. Connect the heater wires to fuse holder harness
holder (221) on the AMZ circuit board.
F . 89: Heater Rod Wiring (J24)
IG
Heater Rod Wire
Item Label
Pump Heater J24-1 (2 wires)
Rod
Melter Heater J24-3 (2 wires)
Rod
5. Install the ADM Screen. Follow the steps on page
83.
Repair
AMZ Plug
Connector (222)
J24-1 (2 terminals)
J24-3 (2 terminals)
99