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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,
stop spraying,
check or service any of the system equipment,
or install or clean the spray tips.
1. Lock the gun trigger safety.
2. Close all bleed-type master air valves.
3. Close the air regulator.
4. Unlock the gun trigger safety.
5. Hold a metal part of the gun firmly to the side of a
grounded metal pail, and trigger the gun to relieve
pressure.
Air Regulator Service
Repair Kits are available. Refer to pages 5 and 6.
If the regulator fails to operate, operates roughly, or
vibrates, service it as follows.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 4.
Fully relieve pressure and remove the regulator from
the air line.
Operation
6. Lock the gun trigger safety.
7. Open any fluid drain valves (required in your
system), having a container ready to catch the
drainage.
8. Leave the drain valve(s) open until you are ready
to spray again.
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above, very slowly loosen the
tip guard retaining nut or hose end coupling and relieve
pressure gradually, then loosen completely. Now clear
the tip or hose.
Adjusting the Air Regulator
Open the air regulator slowly. Use it to control pump
speed and fluid pressure. Always use the lowest air
pressure necessary to get the desired results. Higher
pressures cause premature tip and pump wear.
exceed the specified Maximum Incoming Air Pres -
sure of the equipment (see the Technical Data on
page 7 and in the separate component manuals).
Service
Refer to pages 5 and 6. Disassemble the regulator.
Clean the parts with household soap and water or
denatured alcohol. Wipe dry with a clean, soft cloth.
Use compressed air to blow dirt and contaminants out
of the regulator body.
Inspect all parts for wear or damage. Replace dam-
aged parts.
Lubricate the bearing area, all o-rings, adjusting screw
threads, and spring ends with no. 2 lithium-base
grease. Reassemble the regulator.
WARNING
COMPONENT RUPTURE HAZARD
To reduce the risk of overpressurizing
your system, which could cause compo-
nent rupture and serious injury, never
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