red lion RL-SC33T Owner's Manual

MAINTENANCE
Cleaning Impeller and Volute
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998495 Rev. 005 11/21 Copyright © 2021, Franklin Electric, Co., Inc. All rights reserved.
Cleaning Impeller and Volute
1. Disconnect power to the pump.
2. Disconnect the pump from the discharge plumbing.
3. Remove the bolts that hold the volute to the base.
4. Separate the volute from the motor housing.
IMPORTANT: Do not remove the motor housing bolts or screws.
5. Clean the impeller and the volute passage.
IMPORTANT: Do not use strong solvents on the impeller.
6. Be sure the impeller turns freely.
7. Reattach the volute to the base, making sure the seal is properly aligned.
Troubleshooting
Replacement Parts
Problem Probable Causes Corrective Action
Pump does not turn on
Pump not plugged in. Plug in pump.
Circuit breaker off or fuse removed. Turn on circuit breaker or replace fuse.
Defective motor. Replace pump.
Float switch or other level controls not func-
tioning correctly
Refer to the float switch manual.
Pump will not shut off
Pump is air locked. Remove pump and clean air bleed hole.
Liquid inflow matches pump capacity. Larger pump required.
Pump runs but does not
discharge liquid
Check valve installed backwards.
Check flow indicating arrow on check valve body to ensure
proper installation.
Check valve stuck or plugged. Remove check valve and inspect for proper operation.
Lift too high for pump. Check rated pump performance.
Inlet to impeller plugged. Pull pump and clean.
Pump is air locked. Remove pump and clean air bleed hole.
Pump does not deliver
rated capacity
Lift too high for pump. Check rated pump performance.
Low voltage, speed too slow. Check that supply voltage matches the nameplate rating.
Impeller or discharge pipe is clogged. Pull pump and clean. Check pipe for scale or corrosion.
Impeller wear due to abrasives. Replace pump.
Pump cycles continu-
ously
No check valve in long discharge pipe allowing
liquid to drain back into basin.
Install a check valve in discharge line.
Check valve leaking. Inspect check valve for correct operation.
Basin too small for inflow. Install larger basin.
Water sprays out of a
hole in the discharge
pipe.
There should be a bleed hole in the discharge
pipe that allows trapped air to escape from the
pump, preventing air lock.
Water spraying out of this hole is completely
normal.
No corrective action is required.
Item(s) Description Order Number
1 Tethered Float Switch, Piggyback, 10 ft (3 m) 640171
2 Tethered Float Switch, Piggyback, 20 ft (6.1 m) 640172
3 RL-SC-RVS Vertical Float Switch, Piggyback, 10 ft (3 m) 14942758

red lion RL-SC33T Specifications

General

Brand	red lion
Model	RL-SC33T
Category	Water Pump
Language	English