Platen Maintenance - Graco 24E267 Instructions Manual

Platen Maintenance

If the platen does not come out of the pail easily when
the pump is being raised, the air assist tube or check
valve may be plugged. A plugged valve prevents air
from reaching the underside of the plate to assist in rais-
ing it from the pail.
1. Turn off main disconnect.
2. Relieve pressure and disassemble air assist valve.
Refer to Supply Systems Repair-Parts manual.
3. Clear air assist tube in platen. Clean all parts of
valve and reassemble. Refer to Supply Systems
Repair-Parts manual.
4. Remove bleed stick from platen. Push bleed stick
through bleed relieve port (T) to remove material
residue. See F . 7.
IG
5. Remove platen covers. See F
a. Remove platen cover fasteners (70).
b. Remove both platen covers (49) and ground
wire from platen.
6. Remove any excess fluid. Use a soft wire brush on
heater coils (48). See F
7. Inspect platen heater blocks (43) or heater (48) for
burn or melt spots. Replace platen heater if neces-
sary. See F . 7.
IG
8. Check for loose connections and damaged wires.
9. Follow steps in reverse order to reassemble platen.
NOTE: Torque platen cover fasteners (70) to 60 +/-
10 in-lbs (6.8 +/- 1.1 N•m) for 55 gallon platen.
3A1937C
. 7.
IG
. 7.
IG
Remove and Reinstall Platen Wipers
Refer to Supply Units Repair-Parts manual for instruc-
tions.
Bleed
Stick
T
F . 7: Remove Platen Covers and Heaters
IG
Maintenance
70
49
43
48
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