Conair W1-1.5 User Manual page 98

OPERATION
Pre-Start
— Before initial start of the pump, check as
follows:
1. The rotation must be checked upon installation.
Close, then break the contacts quickly and observe
the rotation of the exposed portion of the rotating
parts. Rotation must agree with the rotation arrow
on the motor. For all pumps, the standard rotation is
counterclockwise when viewed from the suction
end. Motor wiring is easily changed in the field.
Observe the wiring diagram on the inside of the
terminal box cover, or on the motor nameplate.
2. Check voltage, phase and frequency of line circuit
with motor nameplate.
3. Check suction and discharge piping and
pressure gauges for proper operation.
4. Assure that pump is full of liquid (primed).
Priming —
If pump is installed with a positive head
on the suction, prime by opening suction valve and
allowing liquid to enter the casing, at the same time
venting all air out of the top of the casing.
If pump is installed with a suction lift, priming must be
done by other methods, such as foot valves, ejectors, or
by manually filling casing and suction line.
CAUTION - DO NOT RUN PUMP DRY. Serious damage
may result if started dry.
Starting
— Proceed as follows to start pump:
1. Close drain valves and valve in discharge line.
2. Open fully all valves in the suction line.
3. Prime the pump. If pump does not prime properly,
or loses prime during start-up, shut down and
correct condition before repeating procedure.
4. For pumps moving high temperature liquids,
open warm-up valve to circulate liquid for
preheating. Close valve after pump has warmed up.
5. Start the motor (pump).
6. When pump is operating at full speed, open
discharge valve slowly.
Running
— Periodically inspect pump while running,
but especially after first start and following repair.
1. Check pump and piping for leaks.
Repair immediately.
2. Record pressure gauge readings for future reference.
3. Record voltage, amperage per phase, and kW
(if an indicating wattmeter is available).
4. Adjust pump output capacity with discharge valve.
DO NOT throttle suction line.
Freezing Protection —
during freezing conditions by one of the following
methods:
1. Drain pump; remove all liquid from the casing.
2. Keep fluid moving in pump and insulate or heat
the pump to prevent freezing. If heated, do not let
temperature go above 100 to 150 degrees F.
3. Fill pump completely with antifreeze solution.
MAINTENANCE
Cleaning —
Remove oil , dust, dirt, water, chemicals
from exterior or motor and pump. Keep motor air inlet
and outlet open. Blow out interior of open motors with
clean compressed air at low pressure. Regularly drain
moisture from TEFC motors.
Protect pumps shut down
Temperature —
Total temperature, not the rise, is the
measure of safe operation for a motor. If temperature by
thermometer exceeds limits for insulation class,
investigate and change operating conditions.
Labeled Motors —
motor with Underwriters' Laboratories label that original
clearances be held; that all plugs, screws, other
hardware be fastened securely, and that parts
replacements be exact duplicates or approved equals.
Violation of any of the above invalidates Underwriters'
label.
Lubrication —
maintenance, other than
according to the following instructions:
DOUBLE SHIELDED.
prelubricated bearings are furnished, no lubrication is
required for the life of the bearings. Inspect bearings
periodically to determine the condition of the grease and
replace the bearings if necessary.
SINGLE SHIELDED W/GREASE FITTING PROVISIONS.
When single shield bearings are furnished, periodic
inspection, cleaning and relubrication is required. See
motor manufacturer's
lubrication.
MECHANICAL SEAL REPLACEMENT
J56 FRAME MOTOR
A.) Disassembly:
1. Turn off power.
2. Close suction and discharge valves.
3. Drain pump.
4. Remove bolts holding base to foundation
5. Remove casing bolts.
6. Remove motor and rotating element
from casing, leaving casing and piping
undisturbed.
7. Insert a screwdriver in one of the impeller
waterway passages and back off the
impeller nut as shown in Figure 1.
8. Remove motor shaft end cap. Insert a
screwdriver in slot of motor shaft. While
holding shaft against rotation, unscrew
impeller from shaft by turning
counterclockwise when facing impeller
(Figure 2).
9. Pry off rotating member of mechanical seal
from motor shaft by using (2) screwdrivers.
Be careful not to damage the pump cover.
See Figure 3.
It is imperative for repair of a
Pumps should require no
the motor bearings,
When double shielded
specific instructions
Figure 1
for