c. Clean material line filter every two weeks.
d. If slide valve freezes, use antifreeze through the
air intake to thaw out. Ensure that it is frozen and not
simply stuck because of lack of lubrication.
If the grounding wire was disconnected
before servicing, be sure to reconnect
e. Never operate the pump at more that 100 psi
it before operating the pump.
(690 kPa). You will damage the piston within the pump
f. If pump fails to operate, do not strike pump with
g. Never allow the pump to run dry. A dry pump will
quickly accelerate to a high speed, possibly damaging
h. Always flush the unit before material hardens in
any part of the system. How often flushing occurs
depends upon the material being used. Use the lowest
possible pressure to flush. Ground spray gun against
i. After spraying, always turn off the air at its source
and purge the line using the air bleed valve. Disconnect
the air line coupler after the line has been cleared. At
the output end, trigger the gun into a waste container to
clear it of material under pressure. Engage the trigger
safety and disconnect the material line at the filter.
Clean gun and line.
Figure 3-8. Typical Pump