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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.
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.
Application
The low level shutoff kit is designed to shut the ram off
when the drum becomes empty.
Typical Low Level Shutoff Kit Installation
WARNING
Never leave fingers between the ram plate and the
drum when the ram plate is being operated.
WARNING
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.
4
310294
Installation
Low Level Shutoff Kit Setup
Install the low level shutoff as shown in the parts
drawing for your model (see pages 5–7). See also
Fig. 1.
NOTE: During system operation, as the ram ap-
proaches the drum bottom, the top of the ram contacts
the limit valve switch. The switch shuts off air to the air
motor. This allows changing out of material drums.
NOTE: The position of the limit valve on the ram
determines when the ram air motor is turned off.
During operation this position can be adjusted as
desired.
Adjust limit valve to trip with the ram plate 1" from base
plate.
NOTE: Do not remove factory installed plugs from pilot
ports.
Normally Closed
Fig. 1
Normally Open
Pilot
Cylinder
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