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Instruction Manual
3.1 PUMP START-UP PROCEDURE
(VARIABLE STROKE PUMPS)
DO NOT RUN THE MOTOR UNTIL
ALL START UP STEPS HAVE
BEEN COMPLETED. YOU COULD DAMAGE THE PUMP IF YOU
RUN THE MOTOR BEFORE ALL OF THE STEPS HAVE BEEN
COMPLETED. IT MAY BE NECESSARY TO TEST THE MOTOR
OFF THE PUMP TO INSURE PROPER DIRECTION AND
OPERATION. THE MOTOR DIRECTION IS CRITICAL. WIRE THE
MOTOR SO THAT IT ROTATES IN THE DIRECTION OF THE
ARROW CAST ON THE MOTOR MOUNT FLANGE. CONSULT
MANUFACTURER DOCUMENTATION FOR MOTOR START UP
RECOMMENDATIONS.
1. Follow the motor mounting procedure before
attempting to start your pumps. On some
pumps, the motor is mounted at the factory.
2. Make the proper electrical connections to the
motor per the manufacturer’s recommendations.
Make sure the motor is properly grounded.
3. Make sure that all of the mounting holes for the
pump base are used to securely tighten the base
to the mounting area.
4. Do not run the motor until ALL start up steps
have been completed.
5. Remove the gear drive ll cap (the chamber
closest to the motor).
6. Fill the gear drive chamber with appropriate
gear lubricant (SHC-634). This oil was shipped
with the pump. Fill this chamber so that the oil
level is even with the midpoint of the sight glass.
Do not overll.
7. Remove the catchall chamber cover (closest to
the process liquid end of the pump) revealing
the plunger and bleed valve. Fill this chamber
with hydraulic oil, ISO -32 (SHC-524). This oil
was shipped with your pump, and is a lower
viscosity compared to the gear oil. The hydraulic
uid must ll the catchall chamber so that the
oil level is even with the midpoint of the sight
glass. Do not overll.
NOTE:
Two types of oils have been provided. They must
be added at the proper location.
8. Remove all of the tubing connecting the air bleed
valve (at the top of the displacement chamber
behind the discharge check valve). There is a
compression tting at the point where the tubing
enters the front catchall reservoir. Loosen the
nut and remove the tubing from this tting.
There is a tting connected to the air bleed
valve that needs to be removed. Remove all air
bleed valves from the top of the displacement
chamber.
9. The displacement chamber must be lled with,
ISO-32 (SHC-524) through the air bleed port.
If pump equipped with leak detection see
Section 5.
IF THE DISPLACEMENT
CHAMBER IS FILLED WITH THE
PLUNGER FULLY REARWARD, THE DIAPHRAGM COULD
RUPTURE AT START-UP. TO PROPERLY FILL THE
DISPLACEMENT CHAMBER, THE PLUNGER MUST BE
POSITIONED SO THAT IT IS TOP DEAD CENTER IN THE
DISPLACEMENT CHAMBER.
10. With the plunger fully engaged in the
displacement chamber (pump at TDC, Top
Dead Center) adjust the stroke adjustment
mechanism until the indicating needle reads
100%. Either turn the hand wheel on a
micrometer, apply a 15-PSI supply signal
for a Pneumatic, or apply a 20-mA signal for
an Electronic actuator. In order to ll each
displacement chamber and fully purge the air
from the oil, rotate the motor either by hand
(by removing the fan cover and spinning the fan
by hand), or by rotating the motor electrically.
The motor may be jogged by turning the power
ON and OFF very quickly. (During this process
watch for air bubbles escaping the oil)
IT IS VERY IMPORTANT NOT TO
ROTATE THE MOTOR AT HIGH
SPEED, BECAUSE HYDRAULIC FLUID WILL BE FORCED FROM
THE AIR BLEED PORT AT A VERY HIGH VELOCITY.
SECTION 3 - OPERATION
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