Drum Change - Graco DC12 Operation & Setup

Drum Change

General Information
Refer to Fig. 24 and Fig. 25
For additional information on Supply Systems
reference manual 312371.
1. Push in the air motor slider valve (BF) to
shut off air supply to pump.
2. Set ram director valve (BC) to UP to
raise the platen (D) and immediately
press and hold the blow-off air button
(BG) until platen (D) is completely out
of drum. Use minimum amount of air
pressure necessary to push the platen out
of the drum.
Excessive air pressure in the material drum could
cause the drum to rupture, causing serious injury.
The platen must be free to move out of the drum.
Never use drum blow-off air with a damaged
drum.
3. Release the blow-off air button (BG) and
allow the ram to rise to its full height.
4. Remove empty drum.
5. Inspect platen and, if necessary, remove
and remaining material or material build up.
Moving Parts can pinch or amputate fingers.
When the pump is operating and when raising or
lowering the ram, keep fingers and hands away
from the pump intake, platen, and lip of the drum.
6. Remove the drum cover and smooth the
surface of the fluid with a straightedge.
7. Place full drum on DC12 ram base. Slide it
back against the drum stops, and center it
under the platen (D).
53
To Avoid damage to the platen seals, do
not use a drum that is dented or damaged
8. Lower the ram and adjust the position of the
drum relative to the platen.
9. Lubricate the Platen Seals (D) with grease
or other lubricant compatible with the fluid
you will pump.
10. Remove bleed stick from platen bleed port
(J).
11. If drum has a plastic liner, pull it over the
edge of drum. Secure liner with tape
wrapped around circumference of drum.
12. Set the director valve (BC) to DOWN and
lower the ram until fluid appears at the top of
the bleed port (J). Adjust ram air regulator
(BB) as needed.
.
312767B