Graco UniDrum C59784 Instructions And Parts List page 14

Component Identification
- In the OPEN position, the vents open after a
short delay and remain open to facilitate
cleaning. The selector should be returned to the
AUTO setting immediately after cleaning is
complete. If the valve is left OPEN, the vents
may open when the RAM POSITION Switch
(AG) is placed in the UP position, and material
may flow past the vents onto the top of the
Follower Plate (D).
• RAM UP Pushbutton (AF) turns on air pressure to
raise the Follower Plate (D) when used in
conjunction with the RAM POSITION Switch (AG).
• The RAM POSITION Switch (AG) performs the
following three functions:
- Place the switch in the RAISE position to
enable the RAM UP Pushbutton (AF).
- Place the switch in the HOLD/NEUTRAL
position to hold the Follower Plate (D) in the
current position.
- Place the switch in the LOWER position to
lower the Follower Plate (D).
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