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Repair
Required Tools
•
Phillips screwdriver
•
Flat blade screwdriver
•
2 mm, 3 mm, 4 mm, and 5 mm Allen wrenches
•
10 mm, 1/2 in., 11/16 in., and 3/4 in. wrenches
•
Torque wrenches
•
Waste container
•
High-temperature anaerobic thread sealant
•
High-temperature lubricant
•
Anti-seize
•
Crimp tool
Before Beginning Repair
Material inside the applicator can be near the setpoint
temperature. Wear protective clothing to avoid severe
burns.
1. Turn off the melter system. Refer to the InvisiPac
HM25 Tank-Free Hot Melt Delivery System manual.
See Related Manuals on page 3.
2. Relieve pressure. See the Pressure Relief
Procedure on page 11.
3. Disconnect the cordset (F) from the heated hose.
F
. 13
IG
4. Disconnect the M8 solenoid electrical connector
(N).
334627K
Replace Heater Cartridge
NOTE: Depending on the model, the heater may be
retained by a stainless steel plug pressed into the
applicator body. You must remove this plug before the
heater can be accessed and removed. Refer to Parts
starting on page 26 and Replace Plug on page 20.
1. Disable the applicator. See Before Beginning
Repair on page 19.
2. Use a Phillips screwdriver to remove the four screws
(15) and manifold cover plate (18).
F
. 14
IG
3. Remove the heater cartridges (3) from the manifold
(1).
NOTE: Note the placement of the heaters and lead
lengths.
4. Remove the butt splices (4) from the heater wires
(3), thermal cutoff (29), and cordset wire leads (17).
5. Crimp the new heater wires into new splices (4).
See Wiring Diagram on page 21.
To prevent a short to ground and blowing a MZLP
fuse, ensure bare wires are covered and fiber glass
tape and sleeves are centered over the splices.
6. Insert the new heater cartridges (3) into the
manifold (1).
NOTICE
Repair
19
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