Graco Dyna-Star HP 77X202, Instructions Manual

Page: 16 / 26

Installation
16 3A3956D
Auto-Fill Shut Off
The Auto-Fill Shut Off (S) is used for refilling the grease
tank/reservoir in an automatic lubrication system. When
the grease level in the tank is full, the Auto-Fill Shut Off
automatically ends the filling operation. Refer to the
Auto-Fill Shut Off Kit instruction manual 332518 for com-
plete instructions and additional information.
Always fill tank full when refilling tank.
NOTE: For systems without a fill valve, see Refilling
Systems without a Fill Valve instructions beginning on
page 16. For systems with a fill valve, see Refilling Sys-
tems with a Fill Valve beginning on page 18.
As grease is added to the reservoir, it pushes the dia-
phragm (5b, page 22) up to the top of the reservoir. The
diaphragm 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
tank to reduce accidental fluid overflow.
Refilling the Reservoir
Refilling Systems without a Fill Valve
1. Connect lubricant supply hose (V) from remote fill-
ing station pump to the Auto-fill Shutoff Inlet (F
IG
. 1,
page 5).
2. Turn on remote filling station pump (P) and fill reser-
voir (K) until the indicator pin on the Auto-Fill Valve
(S) pushes up as shown in F
IG
. 15; pressure in the
refilling pump (P) builds and the pump stalls.
3. Turn off air supply to refilling pump (P).
F
IG
. 15
pin
up
S