Operation; Remove Priming Plug; Run Ten Minutes Or Less; Priming The Pump - Sears HYDRO-GLASS 390.262501 Owner's Manual

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Operation
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Figure 15--Remove Priming Plug
Figure 16--Fill Pump Before Starting
PRIMING THE PUMP
NOTICE: 'Priming' refers to the pump expelling all air
in the system and beginning to move water from its
source out into the system. It does not refer only to
pouring water into the pump (although pouring water
in is usually the first step).
NOTICE: NEVER run pump dry. Running pump without
water in it will damage seals and can melt impeller and
diffuser. To prevent damage, fill pump with water
before starting.
1. Remove priming plug (Figure 15).
2. Make sure suction and discharge valves and any
hoses on discharge side of pump are open.
3. Fill pump and suction pipe with water.
4. Replace priming plug, using Teflon tape on thread;
tighten plug.
NOTICE: If a priming tee and plug have been
provided for a long horizontal run, be sure to fill
suction pipe through this tee and replace PlUg.
(Dont' forget to Teflon tape the plug.)
5. Start pump: water should be produced in 10 minutes
or less, the time depending on depth to water (not
more than 20') and length of horizontal run (10' of
Figure 17--Run Ten Minutes or Less
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Figure 18--Do Not Run Pump with
Discharge Shut-off.
horizontal suction pipe -- 1' of vertical lift due to
friction losses in the pipe).
If no water is produced within 10 minutes, stop
pump, release all pressure, remove priming plug,
refill and try again.
[_kWARNING] Hazardous pressure and risk of ex-
plosion and scalding. If pump is run continuously at
no flow (that is, with discharge shut off or without
priming), water may boil in pump and piping system.
Under steam pressure, pipes may rupture, blow off of
fittings or blow out of pump ports and scald anyone
near.
To prevent explosion, do the following:
A. Be sure discharge (valve, pistol grip hose nozzle,
etc.) is open whenever pump is running.
B. If pump fails to produce water when attempting to
prime, release all pressure, drain pump and refill
with cold water after every two attempts.
C. When priming, monitor pump and piping tempera-
ture. If pump or piping begin to feel warm to the
touch, shut off pump and allow system to cool off.
Release all pressure in system and refill pump and
piping with cold water.