Graco BULLDOG HYDRA-CAT 208958, Instructions-Parts List Manual

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Operation
WARNING
Some of the chemicals used with propor-
tioning equipment are hazardous to han-
dle. Be sure you are completely familiar
with the fluids you are using. Read and
follow the fluid manufacturer‘s instruc-
tions carefully.
When spraying reactive fluids, wear the proper pro-
tective clothing, eye protection, gloves, and clean
air breathing apparatus as prescribed by the fluid
manufacturer’s recommendations, O.S.H.A. regula-
tions and approved by N.O.I.S.H. for chemicals
being handled.
WARNING
All system components must meet or
exceed the pressure rating printed on
the pressure relief valve. The lever am-
plification of the secondary pump en-
ables very high fluid pressures to be achieved. A
relief valve is provided on the secondary side to
limit the fluid pressure. Do not tamper with this
pressure relief valve or serious injury could result.
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. To 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,
shut off the pump,
stop spraying,
check or service any of the system equipment,
or install or clean the spray tips.
1. Lock the gun/dispensing valve trigger safety.
2. Shut off the air supply to all the pumps.
3. Close the bleed–type master air valve (required).
4. Unlock the gun/dispensing valve trigger safety.
5. Hold a metal part of the gun/dispensing valve
firmly to the side of a grounded metal pail. Trigger
the gun/dispensing valve into the pail to relieve
pressure.
6. Lock the gun/dispensing valve trigger safety.
7. Open the fluid drain valves (required), having a
container ready to catch the drainage.
8. Leave the fluid drain valves open until ready to
spray/dispense again.
If you suspect that the spray tip or nozzle or the hose
is completely clogged or that pressure has not been
fully relieved after following the steps above, follow this
procedure: Very slowly loosen the tip guard retaining
nut or hose end coupling and relieve pressure gradu-
ally, then loosen completely. Now clear the obstruction.