4
Control Panel Overload Adjustment –
Three Phase
NOTICE: Control panel not provided with pump. See con trol
panel in stallation and operating instructions before adjusting
overload setting.
For pumps with a nameplate service factor of 1.0, set over-
load protective device to nameplate full load current.
For pumps with a nameplate service factor of 1.15 or higher,
set overload protective device to 1.09 times the nameplate
full load current.
Size overload protective device so that trip current is 115%
of final setting as selected above.
SERVICE
Pump is permanently lubricated. No oiling or greasing is
required in normal service.
NOTICE: Do not allow pump to run in a dry sump. It will void
the warranty and may damage the pump.
Hazardous voltage. Can shock, burn, or
cause death. Before servicing pump, disconnect electrical
power to pump and control switch.
After removing basin cover and necessary discharge piping,
lift pump out of basin.
Risk of electrical shock. Can burn or kill.
Do not lift pump by power cord. See “Cord Lift Warning”.
Place pump in an area where it can be cleaned thoroughly.
Remove all scale and deposits on pump.
Submerge pump in disinfectant (chlorox or chlorine) for at
least one hour before disassembling pump.
The pump motor housing contains a special lubricating oil.
Keep oil clean and free of water at all times.
NOTICE: Whenever motor cover is being removed for ser-
vice, remove oil and replace with new oil at reassembly. Use
only oil listed in parts list (Part No. U197-8A). When filling
with new oil, DO NOT overfill. To allow room for expansion,
oil level with cold motor should be about 1/4’’ (6 mm) above
top of motor assembly.
Impeller, Seal, and Capacitor Replacement
Risk of electrical shock. Disconnect electri-
cal power before doing any service work on pump!
Refer to assembly drawings on Page 6.
Disassembly
1. Unscrew hex-head cap screws, remove motor assembly
from volute and set it on its side in a clean area.
2. Remove oil plug. Turn pump upside down to drain oil.
3. Hold impeller; remove impeller nut and washer.
4. Unscrew impeller (turn counter-clockwise) for cleaning.
Risk of electric shock. Before touch-
ing capacitor, discharge it by shorting the terminals
together with an amber handled screwdriver.
5. Loosen cord nut and gently pull cord assembly out from
motor cover. Disconnect wires from cord set (wires and
connector are color coded for reassembly).
6. Unfasten socket head screws holding motor cover to seal
plate and remove motor cover.
7. If replacing capacitor, remove wires from capacitor.
Remove capacitor.
8. Remove rotating half of seal off of shaft.
9. Cradle motor assembly so that it stands vertically with
motor shaft extending out of the bottom.
10. Remove through bolts from motor assembly. Remove
motor and shaft from seal plate.
11. Working from back of seal plate, tap primary seal head
out of seal plate; thoroughly clean seat cavity.
Re-assembly
NOTICE: Make sure that seal faces are clean and undam-
aged. Apply Permatex #2 or equivalent sparingly to outside
edge of seal body (with spring) Figure 1.
1. Press new seal body into cavity in seal plate (Figure 1).
Performance Graph – Tether Length vs. Pumping Range
Pumping Range (Inches)
6
10
14
18
22
26
30
34
38"
5.5"
6
10
14
18
22
26"
Tether Length (Inches)
3.5"
413 0893
Slide ceramic
part onto
shaft.
Don't damage
rubber ring
on groove
Install washer,
then clip.
033 0893
Permatex
here
Impeller side of seal plate
Press seal
into cavity
Figure
1
Содержание M37 Series
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