Maintenance
313267W
13
Maintenance
NOTE:
Letters in parenthesis used in this section refer
to the callouts in Component Identification on page 8.
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
1.
Turn off the air supply to the system, except the sys-
tem air supplied to the On/Off ports (H,J). Refer to
the manual for the feed system you are using for
instructions about turning off the air supply.
2.
Activate the gun until all material pressure has been
relieved.
3.
Turn off the system air supplied to the On/Off ports
at the system.
4.
Turn off the material feed system. Refer to the man-
ual for the feed system you are using for instruc-
tions.
5.
Activate the gun until all air pressure has been
relieved.
6.
Open all material drain valves in the system, having
a waste container ready to catch drainage. Leave
drain valve(s) open until you are ready to spray
again.
7.
If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved:
a.
Very slowly loosen each material hose (A,B)
end coupling, one at a time, to relieve pressure
gradually.
b.
When pressure is relieved, loosen the hose cou-
plings completely.
c.
Clear the obstruction.
Check for Leaking Seals
1.
Engage the piston lock (G).
2.
Turn off the incoming air to the gun by closing the
supply air switch (D).
3.
Wait approximately 10-20 seconds, then turn on the
incoming air by opening the supply air switch.
4.
Repeat two or three times.
5.
If any material has been purged from the gun, the
seals or o-rings are leaking.
6.
Repair the leaks by replacing the seals or o-rings
and rechecking.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid and toxic fumes, follow the
Pressure Relief Pro-
cedure
when you stop spraying and before cleaning,
checking, or servicing the equipment.
Supply Air
Switch
