User's Manual
Operation
Startup
Before each use,
check
the hydraulic fluid level and
add fluid as necessary to fill the lines.
WARNING
FIRE HAZARD
If hydraulic oil becomes too hot, it can
reach its flash point and cause a fire.
Operating at too high an oil temperature
can also cause faster motor seal wear and leak
-
age. The recommended hydraulic oil operating
temperature is 80 to 1
15F (27 to 45
C). If the oil
temperature approaches 130
F (54
C), shut of
f the
motor and check the hydraulic oil supply cooling
system, filters, etc. Clean or repair as needed.
Always use Graco-approved Hydraulic Oil or
equivalent (see
Accessories
). Do not substitute a
lower grade oil or one with a lower flash point.
The equivalent is a premium, ISO grade 46
petroleum-based hydraulic oil containing rust and
oxidation inhibitors and anti-wear agents. Before
using any other type of oil in this equipment, call
your Graco distributor
.
Unauthorized use of
lesser grade oil or substitutes will void the
warranty.
Shutdown and Care
Follow
the
Pressure Relief Procedure W
arning
below.
Pressure Relief Procedure
WARNING
INJECTION
HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally
. Fluid
under high pressure can be injected through the
skin and cause serious injury
. T
o reduce the risk of
an injury from injection, splashing fluid, or moving
parts, follow the
Pressure Relief Procedure
whenever you:
are instructed to relieve the pressure,
stop spraying,
check or service any of the system equipment,
or install or clean the spray tip.
1.
Engage the gun safety latch.
2.
Shut of
f the hydraulic power supply
.
3.
Close the supply line shutof
f valve, and then the
return line shutof
f valve.
4.
Disengage the gun safety latch.
5.
Hold a metal part of the gun firmly to the side of a
grounded metal pail, and trigger the gun to relieve
pressure.
6.
Engage the gun safety latch.
7.
Open the drain valve (required in your system),
and have a container ready to catch drainage.
8.
Leave the drain valve open until you are ready to
spray again.
If you suspect that the spray gun or hose is completely
clogged or that pressure has not been fully relieved
after following the steps above,
very slowly loosen the
hose end coupling and relieve pressure gradually
, then
loosen completely
, then clear the valve or hose.