System - Graco 24T918 Instruction Manual

Invisipac hm25 series; invisipac hm50 series tank-free hot melt delivery system
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Reassembly:
1. Plug new daughter card (112a) into the MZLP (112).
2. Use screws (112b) to secure daughter card to
MZLP (112).
3. Connect cables to new daughter card (112a).
NOTE: Do not force the electrical connection. Minimal
force is required to seat the connector. If resistance is
felt, stop and verify the connector orientation.
NOTE: If unable to determine connector location, see
Electrical Schematics on page 78.
4. Install electrical enclosure front access door (10).

System

Replace Fill Sensor
68
20
73
F
. 49
IG
Disassembly (see F
. 49):
IG
1. Turn main power switch OFF.
2. Remove filter cover (68) and filter element.
333347F
3. Gently pull up on cable while unscrewing fill sensor
connector then remove fill sensor cable from fill
sensor (20).
4. Loosen fill sensor jam nut then remove fill
sensor (20) from sensor housing (73).
Reassembly (see F
. 49):
IG
1. Thread new fill sensor (20) into sensor housing (73).
Bottom out the sensor in the sensor housing then
back out 1/2 turn.
2. Tighten jam nut on fill sensor (20).
3. Connect fill sensor cable to new fill sensor (20).
4. Replace filter element and cover (68).
Replace ADM
30
CC
F
. 50
IG
1. Turn main power switch OFF.
2. Disconnect cable (CC) from bottom of ADM (30).
See F
. 50.
IG
3. Remove ADM from bracket (58).
4. Install new ADM into bracket.
5. Connect cable to bottom of new ADM.
NOTE: ADM may need updated software. See Soft-
ware Update Procedure on page 77.
Repair
58
ti20763a
69

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