User's Manual

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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 80–1 15_F (27–45_ 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. 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,
contact Graco T echnical Assistance,
1–800–543–0339. Unauthorized use of lesser
grade oil or substitutes will void the warranty .
Shutdown & 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:
D are instructed to relieve the pressure,
D stop spraying,
D check or service any of the system equipment,
D or install or clean the spray tip.
1. Set hydraulic pump lever in by-pass position.
2. Place an empty pail under the drain valves to
catch drainage from the drain valves.
3. Open all paint drain valves.
4. Place an empty pail under guns to catch drainage
from the guns.
5. Actuate guns to relieve pressure.
6. Shut of f engine.
7. Leave the drain valve(s) 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 . Now clear the valve or hose.