Rebuild; Wetted Section Disassembly - Graco PD44 Operations & Parts List

Rebuild

Rebuild

Wetted Section Disassembly

1. Perform the Pressure Relief Procedure, page 19.
2. Remove electrical power.
3. Mark and disconnect all material feed lines (AK),
pneumatic lines (AL), and proximity switch wiring
(M,N). Remove the metering valve (AC) from the
mounts.
NOTE: The rear tie plate is the tie plate with the
proximity switches (M,N).
Cap Screws
4. Remove the four cap screws to remove the rear tie
plate.
5. Manually move the connecting block down so that
the rods are in the extended position.
22
Rear Tie Plate
6. Loosen the set screws on top of the connecting
block.
7. Slide the metering rod retaining plate until the larger
hole position is in-line with the metering rod. See the
following step.
8. Once the metering rod plate is in position, manually
move the connecting block up. The rods will remain
in position and the connecting block is separated
from the rods.
Connecting Block
Metering Rod Retaining Plate
9. Once the metering rods are disconnected from the
retaining plate, remove the four cap screws from the
front tie plate.
10. Separate the drive cylinder and the valve guides
from the retaining block.
Metering Rod
Cap Screws
3A7284B