Graco Viscount II 4500 Pump [9/16] Operation
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Graco Viscount II 4500 Pump [9/16] Operation

Graco Viscount II 4500 Pump [9/16] Operation
9307-159
Operation
WARNING
COMPONENT RUPTURE HAZARD
T
o reduce the risk of overpressurizing
your system, which could cause compo
-
nent rupture and serious injury
,
never
exceed the specified Maximum Incoming Air Pres
-
sure to the pump
(see the
T
echnical Data
on
page 15).
T
o prevent overpressurizing the hydraulic motor or
its seals, always shut of
f the supply line valve (S)
first
, then shut of
f the return line valve (E).
Pump Operation
To
operate the pump, turn on the hydraulic power
supply
. Open the return line shutof
f valve first, then
slowly open the hydraulic supply shutof
f valve. Use the
lowest possible pressure to obtain the desired results.
Higher pressures will increase tip wear and pump
wear.
In a direct supply system, the pump will start when the
gun or valve is opened, and stall when it is closed. In a
circulating system, the pump will operate continuously
until the hydraulic power supply is turned of
f.
WARNING
T
o reduce the risk of overpressurizing the pump,
which can cause a rupture, fire or explosion and
result in serious injury including fluid injection,
always follow these precautions.
Never exceed 1500 psi (100 bar
, 10 MPa), or 3.3
gpm (12.5 liter/min) hydraulic input to the motor
.
Never exceed 4500 psi (310 bar
, 3.1 MPa) maxi
-
mum pump outlet pressure.
CAUTION
Do not allow the hydraulic oil temperature to exceed
130 F (54
C). The pump seals will wear faster and
leakage may occur if the pump is operated at higher
oil temperatures.

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