Maintenance/Repair Instructions - Little Giant Professional OPWG Series Instruction Sheet

Out-of-pond water garden pump
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FIGURE 2
Standard 2" gate valve (for
adjusting flow to waterfall
or water feature)
Standard 2" elbow
To waterfall
or water feature
Pump
WATER LEVEL ABOVE PUMP INTAKE (WITH LEAF BASKET)
FIGURE 3
Standard 2" gate valve (for
adjusting flow to waterfall
or water feature)
Standard 2" elbow
To waterfall
or water feature
Pump
2" foot valve or check valve.
IMPORTANT: Must be used for
this type of installation.
PUMP INTAKE ABOVE WATER LEVEL (WITH LEAF BASKET)
FIGURE 4
Standard 2" gate valve (for
adjusting flow to waterfall
or water feature)
To waterfall
or water feature
Pump
WATER LEVEL ABOVE PUMP INTAKE (NO LEAF BASKET)
MODEL
ITEM
INTAKE
NO.
NO.
SIZE
OPWG-29
566020
2" FNPT
OPWG-46
566021
2" FNPT
OPWG-71
566023
1-1/2" FNPT
OPWG-97
566024
1-1/2" FNPT
2
Standard 2" PVC or
flexible pipe
Leaf basket
Skimmer, pond, or filter
Standard 2" gate valve
NOTE: Close this valve ONLY
when servicing pump or
cleaning leaf basket. DO NOT
use to restrict intake to pump.
Leaf basket
Standard 2" union
Water level
Skimmer, pond, or filter
Standard 2" elbow
Standard 2" PVC or
flexible pipe
Standard 2" gate valve
NOTE: Close this valve ONLY
when servicing pump or
cleaning leaf basket. DO NOT
use to restrict intake to pump.
SPECIFICATIONS • SPÉCIFICATIONS • ESPECIFICACIONES
DISCHARGE
SIZE
VOLTS
HZ
RPM
1-1/2" FNPT
115
60
1722
1-1/2" FNPT
115
60
1653
1-1/2" FNPT
115/230
60
1760
1-1/2" FNPT
115/230
60
1720
Item
Number•
Numéro
d'article •
du modèle
Water level
Número de
ítem
de modelo
566020
566021
566023
566024

MAINTENANCE/REPAIR INSTRUCTIONS

WARNING - DISCONNECT PUMP POWER CORD PRIOR TO WORKING ON
THE PUMP OR PERFORMING ROUTINE MAINTENANCE.
1.
Close gate valves to keep water from back-flowing into pump. Disconnect
piping from intake and discharge ports on pump.
2.
Remove bolts from the volute housing and then remove volute housing.
Inspect the volute housing, O-ring, and impeller.
3.
Remove the impeller from the motor shaft by turning the impeller counter-
clockwise. Remove small end cap on other end of motor and use a standard
screwdriver on the motor shaft to keep the shaft from rotating.
4.
The OPWG-29 and OPWG-46 pumps are equipped with a metal washer
behind the impeller. If replacing the washer, compare the thickness of the
existing washer with the two new washers (provided with the new impeller)
and use the one of the same thickness.
5.
Remove 4 bolts that attach the bracket to the motor. Do not insert screwdriver
tip into motor to pry against fan blades for it will damage the fan.
6.
REPLACING CERAMIC IMPELLER SEAL:
the damaged seal from the impeller. Be sure to clean out any excess debris
in the bore where the old seal was removed. Apply a little water to rubber
seal component and with a lint-free cloth push the seal assembly into the
impeller bore. Note: Ceramic component must be inserted into rubber boot
prior to inserting into impeller seal bore.
7.
REPLACING THE MECHANICAL SHAFT SEAL/BRACKET:
steps 1-4. Apply sealant to the bracket bore ID wall and around the outer
diameter of the seal case. Note: Prior to inserting seal into bracket bore,
place a small chamfer on the bracket bore. This will make the insertion of
the seal easier. DO NOT TOUCH OR APPLY PRESSURE TO THE CARBON
GRAPHITE SEAL FACE. Install new bracket containing mechanical seal.
Make sure the face of the carbon seal is free of any debris and be careful
Water level
not to damage the face of the seal in the process of re-assembling the
components. Note: If replacing the carbon graphite seal it is recommended
to replace the ceramic seal in the impeller.
8.
IF REPLACING THE SLINGER WASHER:
damaged slinger washer from the motor shaft. Install the new slinger on the
shaft. Be sure that the new slinger washer is positioned over the step in the
motor shaft. This will keep the washer from sliding along the shaft when the
motor is operating.
9.
Attach bracket to motor, install 4 bolts, and tighten.
10.
Thread impeller onto shaft and tighten (turn the impeller clock-wise to tighten).
Remove motor end-cap and use a screwdriver on the back of motor shaft to
prevent shaft rotation while tightening. Replace motor end cap.
11.
Place O-ring back in the designated groove in the volute and install volute.
Be sure that the O-ring remains in the groove while attaching volute to the
bracket. Install the volute bolts, apply washers and nuts and tighten.
12.
Before making connections to the pump check to make sure the impeller
rotates CCW (impeller should turn the same direction as the arrow located
on the face of the volute). Incorrect rotation will damage the pump and void
the warranty! Reinstall pump.
TABLE 2 • TABLEAU 2 • TABLA 2
MOTOR
PH
HP
WATTS
AMPS
1
1/8
92
1.1
1
1/8
132
1.3
1
1/6
257
2.5/1.3
1
1/4
335
3.0/1.6
TABLE 1 • TABLEAU 1 • TABLA 1
Model
Intake Size•
number•
Volume
Discharge
Numéro
d'alimentation•
Size • Volume
Tamaño de la
de décharge
• Número
toma de agua
• Tamaño de
descarga
OPWG-29
2" NPT
1-1/2" NPT
OPWG-46
2" NPT
1-1/2" NPT
OPWG-71
1-1/2" NPT
1-1/2" NPT
OPWG-97
1-1/2" NPT
1-1/2" NPT
SHUT-
GALLONS PER MINUTE
OFF
MAX
HEAD
5
7.5
PSI
(FT)
FT
FT
4.8
11
29
20
5.2
12
46
37
8.9
21
71
65
9.6
22
97
90
Voltage•
Cord •
Tension•
Cordon •
Voltaje
Cable
115
8'
115
8'
115/230
n/a
115/230
n/a
Go through steps 1-3. Remove
Go through
Go through steps 1-4. Remove
10
12.5
15
17.5
20
FT
FT
FT
FT
FT
5
--
--
--
--
26
--
--
--
--
59
53
45
35
10
84
77
68
59
45

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