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Prepare the Site
NOTE: Always use Genuine Graco Parts and Acces-
sories, available from your Graco distributor. If you
supply your own accessories, be sure they are ade-
quately sized and pressure rated for your system.
NOTE: Letters and numbers in parenthesis refer to the
callouts and the parts list on page 10.
Bring a compressed air supply line from the air com-
pressor to the pump location. Be sure all air hoses are
properly sized and pressure-rated for your system.
Use only electrically conductive hoses. The air hose
should have a 3/4 npsm(m) thread.
Before installing any air line components, blow out the
air lines to remove scale and other debris. Use pipe
compound or tape sparingly and only on male threads.
Install a bleed-type shutoff valve in the air line up-
stream from all other air line components, to isolate
them for servicing.
Installation
Application
The pneumatic crossover kit is designed to allow two
drum ram systems to be converted into a continuous–
flow system. It shifts pumping from an online ram
when the drum becomes empty.
Typical Pneumatic Crossover Installation
Never leave fingers between the ram plate and the
drum when the ram plate is being operated.
Never enter the operating area of the ram , when
the ram is in the top position. When the air pres-
sure is lost or in the case of leaks in the air pres-
sure system, the ram plate may drop.
The typical installation, shown on the cover of this
manual, is only a guide. See the system manual for
your application or contact your Graco distributor for
assistance in designing a system to meet your needs.
See your ram manual if installing a new ram or relocat-
ing an existing ram.
WARNING
WARNING
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