Xylem IM045 R03 High Head Effluent Pumps - Manual (Page 5)

5
MOTOR INSULATION RESISTANCE READINGS 1
Condition of Motor and Leads OHM Value Megohm Value
New motor, without power cable 20,000,000 (or more) 20.0
Used motor, which can be reinstalled in tank 10,000,000 (or more) 10.0
Motor in tank – Readings are power cable plus motor
New motor 2,000,000 (or more) 2.0
Motor in reasonably good condition 500,000 to 2,000,000 0.5 – 2.0
Motor which may be damaged or have damaged power cable
20,000 to 500,000 0.02 – 0.5
Do not pull motor for these reasons
Motor definitely damaged or with damaged power cable
10,000 to 20,000 0.01 – 0.02
Pull motor and repair
Failed motor or power cable – Pull motor and repair
Less than 10,000 0 – 0.01
1 Courtesy of Franklin Electric Company
WARNING
Hazardous
voltage
TROUBLESHOOTING
DISCONNECT AND LOCKOUT ELECTRICAL POWER BEFORE ATTEMPTING
ANY SERVICE. FAILURE TO DO SO CAN CAUSE SHOCK, BURNS OR DEATH.
Symptom Probable Cause Recommended Action
PUMP MOTOR
NOT RUNNING
LITTLE OR NO LIQUID
DELIVERED BY PUMP
1. Motor thermal protector tripped
a. Incorrect or faulty electrical connections
b. Faulty thermal protector
c. Low voltage
d. Pump bound by foreign matter
e. Inadequate submergence
1. Allow motor to cool, thermal protector will
automatically reset.
a-e. Have a qualified electrician inspect and
repair, as required.
f. Pull pump, clean, adjust set depth
as required.
g. Confirm adequate unit submergence
in pumpage.
2. Open circuit breaker or blown fuse 2. Have a qualified electrician inspect and repair,
as required
3. Power source inadequate for load 3. Check supply or generator capacity
4. Power cable insulation damage
5. Faulty power cable splice 4. & 5. Have a qualified electrician inspect and
repair, as required
1. Faulty or incorrectly installed check valve
2. Pump air bound
3. Lift too high for pump
4. Pump bound by foreign matter
5. Pump not fully submerged
6. Filter/screen plugged
7. Excessive pump wear
1. Inspect check valve, repair as required
2. Successively start and stop pump until flow is
delivered
3. Review unit performance, check with dealer
4. Pull pump, clean, adjust set depth as required
5. Check float settings, lower pump if possible
6. Clean filter
7. Pull pump and repair as required
Xylem, Inc.
www.completewatersystems.com
© 2012 Xylem Inc. IM045 Revision Number 3 July 2012