Setup
332291P 23
Auto-Fill Shut Off
The Auto-Fill Shut Off is used for refilling the G3
reservoir in an automatic lubrication system. As fluid is
added to the reservoir, the plate valve is pushed up to
the top of the reservoir, pushing the valve pin and
closing the inlet fluid path.
When the fluid refilling path closes, the refilling line
pressurizes and brings the refilling pump to a
pressurized stall condition.
NOTE: The operator must monitor the system while
filling the reservoir to prevent overfilling.
Load Grease
To ensure optimal performance from the G3 pump:
• Only use NLGI #000 - #2 greases appropriate for
the application, automatic dispensing, and the
temperature. Consult with the machine and lube
manufacturer for details.
• Do not overfill the reservoir.
• Do not operate the G3 pump without a reservoir
attached.
Change Grease
When changing greases, always use compatible fluids
or greases.
Remote Fill with Remote Fill Manifold
The reference letters used in the following instructions
refer to FIG. 5, pages 11.
The fill valve is used to relieve pressure in the refill line
and to reset the Auto Fill Shut Off. See Fill Valve
instruction manual 333393. Graco fill valve, part no.
77X542 is available. Contact your local Graco distribu-
tor.
1. Pull out and hold the Pressure Relief Knob (T) long
enough to relieve line pressure between Fill Mani-
fold (N) and Auto-Fill Shut Off Valve (B).
2. Verify that the Auto-Fill Shut Off (B) pin is down,
indicating it is reset (F
IG. 22).
NOTICE
Use care when filling the reservoir with a pneumatic or
an electric transfer pump, to not pressurize and break
the reservoir.
The remote filling station pump stalls (dead-heads)
when the reservoir is full, causing the supply system
pressure to rise to the maximum output pressure
of the filling station pump. To help prevent equipment
damage or serious injury caused by pressurized fluid,
such as skin injection or injury from splashing fluid,
always use a remote filling station pump with a maxi-
mum output pressure of 5100 psi (35.1 MPa,
351.6 bar) and use supply hoses with a minimum
pressure rating of 5100 psi (35.1 MPa, 351.6 bar).
COMPONENT RUPTURE HAZARD
The maximum working pressure of each component
in the system may not be the same. To reduce the
risk of over-pressurizing any component in the sys-
tem, be sure you know the maximum working pres-
sure of each component. Never exceed the
maximum working pressure of the lowest rated com-
ponent in the system. Over-pressurizing any compo-
nent can result in rupture, fire, explosion, property
damage and serious injury.
Regulate input pressure to the remote fill pump so
that no fluid line, component or accessory is over
pressurized.
FIG. 22
pin
down
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