Instruction 2111-801C
01-04
8
OPERATION
CHECK THE FOLLOWING ITEMS BEFORE STARTING UNIT:
1. Be certain all equipment has been lubricated as per lubrication instructions
2. Turn the shaft by hand to see that it rotates freely. If it sticks or turns with difficulty, refer to "Repair" section
of these instructions.
3. See that current characteristics of voltage and frequency on motor nameplate coincide with service
provided.
4. See that all thermal units are "set" and the selector switch (when used) is on "off" position.
5. See that gate valves on the suction and discharge lines are open.
6. Vent air from the pump volute.
STARTING:
To start the pump, engage the motor disconnect switch and set the selector switch (if used) to the automatic
position. The pump will not operate unless the float switch is closed. If a selector switch is used, the pump
may be run independently of the float control by turning it to the hand" or manual position.
AFTER STARTING THE UNIT:
1. See that shaft rotates in the direction indicated by the rotation arrow on the pump casing and that pump is
delivering water.
2. See that all pipe connections are tight and the check valves are functioning.
3. Note operation of automatic control mechanism, observing a complete start-stop cycle; see that the float
switch throws In and out properly as wet basin fills and is emptied by the pump. Check high-low water level
adjustment.
4. Observe the extended line shafting; see that incorrect installation has not resulted in its vibrating or "whip-
ping."
5. See that there is the desired water leakage from stuffing box (refer to paragraph under "Maintenance" for
details).
6. See that bearings (8) (11) do not overheat due either to over or under lubrication.
7. Observe operation of pump closely for the first day and at regular intervals for two weeks. A new machine is
frequently stiff or initial float control regulation may be incorrect: therefore, the unit should be watched to
note performance. (See Periodic Inspection.)
MAINTENANCE:
1. Lubrication
-At regular intervals lubricate motor, pump, steady bearings and universal shaft joints as per
lubrication instructions.
2. Grease
Seal
-To be effective, grease seals must maintain constant and sufficient grease pressure upon the
packing.
3. General
Cleanliness
--Keep the interior and exterior of motor and controls free from moisture, oil and dirt.
When necessary, blow out their interiors using a bellows. When switch contacts show signs of wear or
pitting, they should be replaced.
4. Packing
Box
-Occasionally observe the packing glands (16) for leakage. A slight leakage of seal water, say
60 drops per minute (large pumps may require more), from the packing box when pump is running, acts as
a Iubricant and also keeps packing (31) cool and in good condition. Its serious leakage is noted, tighten the
two gland nuts (17) evenly a few turns only; do not draw glands too tight. After adjusting packing glands,
turn the shaft by hand to be certain it rotates freely. If serious leakage will not stop, refer to "Repair"
instructions for packing renewal.
