Auto-Fill Shut Off - Graco G3-G-12NC-2L0000-00C00000 Instructions Manual

Auto-Fill Shut Off

Loading Grease
To ensure optimal performance from the G3:
• Only use NLGI #000 - #2 greases appropriate for
your application, automatic dispensing, and the tem-
perature. Consult with machine and lube manufac-
turer for details.
• Do not overfill.
• Do not operate G3 without reservoir attached.
NOTICE
Care must be used when filling the reservoir using a
pneumatic or electric transfer pump to not pressur-
ize and break the reservoir.
Changing Greases
When changing greases, always use compatible fluids
or greases.
The Auto-Fill Shut Off is used for refilling the G3 reser-
voir in an automatic lubrication system. As fluid is added
to the reservoir, it pushes the plate valve up to the top of
the reservoir. The plate valve then pushes the valve pin
and closes the inlet fluid path.
When the fluid refilling path closes, the refilling line pres-
surizes and brings the refilling pump to a pressurized
stall condition.
NOTE: The operator must monitor system while filling
the reservoir to prevent overfilling.
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).
332291G
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.
Remote Fill with Remote Fill Manifold
The reference letters used in the following instructions
refer to the Typical Installation diagrams starting on
pages 8.
The fill valve is used to relieve pressure in the refill line
and to reset the Auto Fill Shut Off. See Fill Valve instruc-
tion manual 333393. Graco fill valve, part no. 77X542 is
available. Contact your local Graco distributor.
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 the Auto-Fill Shut Off (B) pin is down, indicat-
ing it is reset (F . 21).
IG
pin
down
F . 21
IG
Setup
21