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Operation
If the Pump Will Not Be Used for Five
Minutes or Longer
1.
Remove the pump from the mixing container. Turn
on the air and direct the material flow into the mixing
container. Flush the pump with clean water until thor-
oughly cleaned. Use the outlet hose to clean the out-
side of the pump.
NOTE:
If material has leaked through the weep holes
on either side of the motor base, direct the out-
let hose into these holes and flush thoroughly.
2.
Remove the outlet hose, and then turn the pump up-
side down to drain. This helps prevent rust.
If the Pump is Being Stored
Clean the pump thoroughly to reduce rust. Flush with wa-
ter and disassemble the pump if further cleaning is need-
ed. Turn the pump upside down to drain the water out.
Flush again with a rust inhibiting chemical.
If the Pump or Hose Clogs
WARNING
If the pump or the hose clogs, use extreme caution
to avoid splashing material in your eyes while
clearing the clog. Follow the procedure below.
1.
Shut off the air supply to the motor.
2.
Wrap a heavy cloth around the hose coupling at the
pump outlet. Slowly unscrew the hose to relieve
pressure gradually and reduce splashing.
3.
If the clog does not appear to be in the hose, hammer
the intake valve lug nut to loosen it and then unscrew
it. This should help relieve pressurized material
trapped in the pump.
4.
Clean the intake valve and reassemble it. Flush the
pump.
5.
If the piston check valve is clogged,
relieve pressure.
Remove the intake valve and then remove the air
motor. See page 10. Push the throat packing assem-
bly out of the pump cylinder. Clean the pump and re-
place the throat packing assembly. See page 12.
6.
If the pump is still clogged, shut off the air to the
pump. Disassemble the pump and clean it thorough-
ly. See page 12.
