Graco InvisiPac HM50 [70/150] Melter

Graco InvisiPac HM50 [70/150] Melter
Repair
70 333347K
Melter
Remove Melter Assembly
NOTE: This only needs to be done when replacing
items that require access to the bottom of the melter
assembly.
1. Perfor m Drain the System procedure on page 43
then wait for system to cool.
2. Close the bleed type ball valve at the system air
inlet.
3. Turn main power switch OFF.
4. Disconnect all heated hoses from the melter outlet
manifold.
5. Remove cable from ADM (30) then slide forward the
shroud (29) and remove it from the system.
6. Remove screws (8) then remove electrical enclo-
sure front access door (10).
7. Disconnect heater rod wires from J4 connector on
AWB board.
8. Remove the air tube (36) from the relief valve (245).
Pull the air tube from the metal shroud (27).
9. Remove nuts (3) on the back metal shroud (27)
then remove shroud.
10. Remove fabric melter insulator (53).
11. Loosen screw (AA) then remove sensor (125). See
FIG. 42, page 73.
12. Loosen hose clamp (81) then remove funnel (FF).
13. Remove wire connectors from the over-temperature
switch (251).
14. Remove insulators (53, 75) from the melter
assembly (5).
15. Disconnect the fill sensor cable from the fill
sensor (20). See Replace Fill Sensor, page 79.
16. Disconnect the pump cycle sensor cable from the
air motor.
17. Remove the air tube from the air motor (218).
18. Loosen screw (AA) then remove sensor (125). See
FIG. 41 on page 72.
19. Disconnect ground screw (87) and ring terminal (88)
from melter assembly.
20. Remove electrical enclosure front access door (10).
FIG.39
WLD
FF
29
30
27
10
8
203
1
3
53
3
5
218
81
75
251
245
36
FIG.40
WLD
87
88

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