Table of Contents
Advertisement
WARNING!!! IF YOU DO NOT INSTALL AND SERVICE THIS EQUIPMENT CORRECTLY,
APPLICATION CHECKLIST
1. UPON RECEIPT
Our Quality Control Department inspects the motors
and packing before shipment. When you receive it,
inspect your order. Look for any mechanical
damage that may have occurred during shipment. Report any
damage you find to the freight carrier FIRST. Then call
POWERTEC for help in assessing the damage.
2. STORAGE
You should store a motor in its original packaging. Keep it in a
clean, dry location, protected from extremes in temperature and
humidity. Rotate the shaft of a stored motor monthly. The grease
may settle in the bearings and harden over time. Do not remove
the cosmoline rust prevention coating from the shaft extensions
until installation.
3. HANDLING
Use care in handling the motor. Avoid dropping it. Prevent
sudden impacts, especially on the shaft. The lifting lugs are
designed to lift the weight of the motor ONLY. DO NOT use the
lifting lugs of the motor as the sole means to lift other devices, such
as gearboxes, attached to the motor.
4. ENVIRONMENT
The motor ratings are for an altitude of less than 3300 feet (1000
meters). You must derate the motor for higher altitudes.
ALTITUDE DERATING CHART
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
0
2
4
6
ALTITUDE (X 1000) in f eet above sea level
Mot ors are rated in accordance with NEMA Standard MG1-14.04.
For altitudes below sea level, use st andard ratings.
For altitudes above 24,000 feet , consult the f actory.
At a specif ied altit ude: Multiply the motor HP by the de-rating fact or.
POW ERTEC "F" Series Motor Manual
YOU OR SOMEONE ELSE COULD GET HURT.
8
10
12
14
16
18
20
Install the motor in a clean, dry, well-ventilated area away from
heat sources. Air temperature should not exceed 40 °C (104°
Fahrenheit). For higher ambient temperatures, you must derate
the motor. See the graph below.
AMBIENT TEMPERATURE DERATING CHART
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
20
25
Motors are rated in accordance with NEMA standard MG1-12.43.
At a given ambient temperature: Multiply the motor HP by the derating factor.
First de-rate for altitude; then de-rate for temperature.
5. GENERAL MECHANICAL INSPECTION
Before you install the motor, verify that the motor shaft is free to
turn and all mechanical parts are in their proper position. Turn the
motor shaft by hand to check for damage to the rotor. Remove the
Cosmoline coating on the shafts with a suitable solvent, before
installation.
NOTE: If you have power leads shorted together in the
junction box, the motor shaft will not turn.
6. MOUNTING
You can mount the motor in any shaft position as long as you
keep radial and thrust loads within limits. Install foot-mounted
motors on a rigid foundation. You must use shims if the motor
mounting base is uneven. Do not cause unnecessary stress on
22
24
feet, frame and bearings by using poor mounting practices.
After installation, make sure that all bolts that hold the motor in
place are tight. See Mounting Bolt Torques on page 14.
© copy right 2012 by P O WE R TEC Industrial Motors, Inc.
30
35
40
45
50
55
TEMPERATURE °C
For ambient temperatures below 40°C, use the 40°C rating.
For ambient temperatures below 0°C, consult the factory.
De-rating is cumulative.
1
Page
60
65
70
75
80
Advertisement
Table of Contents
