Maintenance
14
313267W
Check the Material Valves for
Leaks
1.
Turn off both material shutoff valves (E,F).
2.
Disengage the piston lock (G).
3.
Activate and deactivate the gun several times.
4.
Wait approximately 10-20 seconds.
5.
Activate and deactivate the gun several times again.
6.
If additional material is purged, the material valves
are leaking.
7.
Repair the leaks by loosening the set screw and
removing the handle where the leak is occurring.
Turn the valve packing nut clockwise in 1/8 turn
increments until the leak is corrected.
8.
Recheck for leaks.
Check Side Blocks
1.
Follow the
Pressure Relief Procedure
as
described on page
.
2.
Remove the screws holding the side blocks (K) and
remove the side blocks from the mixing chamber.
1/8
Before conducting any maintenance or removing the
side blocks, follow the
Pressure Relief Procedure
to
help prevent serious injury. Make sure that both mate-
rial valves are in the off position. Existing fluid pres-
sure could cause material to exit the side blocks with
considerable force. Point the gun side blocks down
and away from all personnel.
NOTICE
If the material valves are open when the side blocks
are removed, the gun quickly becomes encased in
urethane.
