Fawcett HDPM-5 Pail Mixer - Manual (Page 5)

FAWCETT CO, INC. HDPM-5 manual 01/09 Page 5
Operation (continued)
Air Cylinder Operation:
Before connecting your air supply make sure the lift control
valve is in the center (off) position. Connect your air supply
to the quick connector at the 3-position air valve. Maximum
air pressure is 100 PSI. Note: air pressure is used to both
raise and lower the cylinder.
CAUTION: After the air line is installed and before
operating the machine for the first time, move the lift control
valve to the downward position. This will charge the air
cylinder and prevent surging when the lift control valve is
moved to the upward position.
• Lifting:
Move the lift control valve to the up position.
To stop
upward motion move valve to center(off) position.
• Stop - Hold:
To hold the impeller at any height move the lift control
valve to the center (off ) position.
• Lowering:
• Move the lift control valve to the down position. To
stop downward motion move valve to center (off )
position.
Maintenance:
General: Maintaining your mixer is not difficult if you follow
these guidelines:
• The Bearing Housing Assembly has sealed
bearings that do not require lubrication.
• Keep the mixer clean.
• Ensure all bolts, nuts and set-screws are tight.
• Check all wiring on a regular basis and repair as
needed.
• Unit fails to start: Check power source to unit, plug
in -or- reset the breaker. If problem continues,
disconnect power and have a qualified electrician
make the proper repairs.
Changing Impellers:
The standard impellers are 3-bladed axial flow Turbines. To
install the Turbine, back off the set screw(s) as far as
possible without removing them. Insert mixing shaft into the
bore and tighten the set screw(s) firmly to secure the
Turbine to the shaft.
Impeller Placement:
For mixers with ONE impeller, mount it 1 to 2 impeller
diameters distance off the bottom of mixing container.
For mixers with TWO or more impellers, mount the lowest
impeller 1 to 2 impeller diameters distance off the bottom of
mixing container. Mount the other impellers 1 to
2 impeller
diameters apart. The uppermost impeller should be
positioned approximately 1 impeller diameter under the
surface of the liquid.
The above guide-lines are "rules of thumb" and may not be
the best for your situation. Experimenting with impeller
placement may provide your best results.