Metalfab, Inc. hereby disclaims any liability for injuries or damage resulting from use or application of this
product contrary to instructions and specifications contained herein. Metalfab’ s liability shall be limited to
repair or replacement of product shown to be defective.
Observe all safety rules given herein along with owner and Government standards and regulations. Know
and understand lockout/tagout procedures as defined by American National Standards Institute (ANSI)
z244.1-1982, American National Standard for Personnel Protection - Lockout/Tagout of Energy Sources - Minimum Safety Requirements and Occupational Safety and Health Administration (OSHA) Federal
Register, Part IV, 29 CFR Part 1910, Control of Hazardous Energy Source (Lockout/Tagout); Final Rule.
The following symbols may be used in this manual:
!
DANGER
Danger: Immediate hazards that will result in severe personal injury or death.
!
WARNING
Warning: Hazards or unsafe practices that could result in personal injury.
!
CAUTION
Caution: Hazards or unsafe practices that could result in product or property damages.
IMPORTANT
Important: Instructions that must be followed to ensure proper installation/operation of equipment.
The Metalfab, Inc. Electric Vibratory Motor you have purchased is of special
manufacture. It has been designed and manufactured solely for use as a
vibratory motor, to ensure the best possible performance and reliability under
severe duty applications.
Metalfab, Inc. M3258-09/081Electric Vibrators
Page 6
Installation
CAUTION
!
IMPORTANT
The mounting bolts used must be of grade 8 material. When installing the
motor, it is necessary to use locking nuts (do not use split lock washers) and
tighten the bolts evenly to the recommended torque ratings. Never reinstall
used fasteners as they may fail under load. Check the bolts for security after a
few hours of operation.
It is imperative that the eccentric weights at both ends of the shaft are adjusted
identically: “mirror images of each other.” When adjusting the eccentric
weights, use the least amount of amplitude and force to move your material.
This will provide longer motor life. See the “Eccentric Weight Adjustment”
section.
The motors are supplied with a terminal block to provide safe and secure lead
attachment. Wiring of these motors must be done in accordance with the
National Electric Code. See Figures 2 through 6 for wiring diagrams. Each
motor is supplied with a wiring diagram inside the terminal box.
Always use closed loop wire connectors only with crimped or soldered
terminal ends on cable leads. See Figure 1 for the correct technique for
assembling the wire connectors. Reinstall the foam rubber blocks supplied in
the junction box on top of the cable leads.
When wiring the motor, always use the ground connection.
Never weld on the bin or structure without first disconnecting
the motor leads. Failure to do so may cause damage to the
motor windings and bearings by grounding through the
motor.
Overload Protection Required!
This vibrator carries the best guarantee offered by any
vibrator manufacturer. To assure extended life, maintain the
warranty, and comply with the National Electric Code, this
unit must be wired with the proper size overload protection.
Install overload protection in the vibrator circuit in
accordance with Article 430, Part III of the National Electrical
Code. If the vibrator cannot be operated in your application
at this amperage level, consult Metalfab, Inc. or your local
distributor. Do not increase the overload protection rating.
This may destroy the vibrator and will void the warranty.
Starter size is NEMA 00 unless otherwise specified.
*Use NEMA 0 starter.
**Use NEMA 1 starter.
Metalfab, Inc. M3258-09/086Electric Vibrators
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Eccentric Weight Adjustment
NOTE
All Metalfab, Inc.Vibratory Motors feature eccentric weights to change the
amplitude and centrifugal force. The following procedure should be adhered
to whenever the eccentric weights are adjusted.
1. Remove weight covers on both ends of motor.
2. Note present eccentric weight setting.
3. Loosen bolts on the outer adjustable eccentric weights only.
4. Rotate outer eccentric weights on shaft and line up the outer eccentric
with the desired percentage setting on the inside eccentric. (See Figure 8
for examples of force settings.)
5. Retighten eccentric bolts and reinstall weight covers.
The upper weight and lower weight must be set at same
position.
Figure 7. Setting Sets of Eccentric Weights to Mirror Images
Metalfab, Inc. M3258-09/087Electric Vibrators
Page 12
WARNING
!
Before any adjustments vibrator should be electrically
"locked out.”
Figure 8. Eccentric Weight Adjustment
Metalfab, Inc. M3258-09/088Electric Vibrators
Page 13
Lubrication
Each Metalfab, Inc.Vibratory Motor has been lubricated from the factory and
requires no further lubrication for 2000 hours of operation. Exceptions to this
lubrication schedule are only to be made if surface temperatures exceed 194°F
(90°C). In this case, the lubrication time should be halved for every 18°F
(10°C) increment above 194°F (90°C). The lubrication quantity should also
be halved accordingly.
The grease lubrication installed in the CD Series motors is Kluber Staburags
NBU 8 EP. The CDX series explosion proof motors use Kluber Isoflex Topas
NB 52.
Never mix greases of different types or manufacturers as this may cause
premature bearing failure. Kluber grease may be purchased from:
Refer to the chart below for the proper lubrication quantities for each motor.
Table IV. Vibrator Lubrication
Motor size
Bearing number
(FAG TVP2C4 QP51
or SKF ECP-C4)
Grease per bearing
oz.g
*CD18-9206305.2ZR.C3------
CD18-2000NJ2208E0.39
CD18-3870NJ2308E0.616
CD18-5380NJ2309E0.719
CD18-10900NJ2313E1.440
CD18-14500NJ2315E2.160**
*CDX18-9106306.2ZR.C3------
*CDX18-2100NJ2206E------
CDX18-3500NJ308E0.412
CDX18-4400NJ2308E0.616
CDX18-5380-DNJ2310E1.025***
All motors must be lubricated every 2000 working hours unless otherwise
specified.
*This motor has bearings sealed for life.
**Lubricate every 1000 working hours.
***Lubricate every 3000 working hours.
Fifteen pumps of a standard grease gun equals approximately 1 oz. (28 g) of
grease. Too much grease may cause the bearings to overheat and result in
premature bearing failure.
When installing new bearings, lubricate by hand-packing the bearings. The
quantity of grease for new bearings should be doubled that of the above
lubrication table.
Metalfab, Inc. M3258-09/089Electric Vibrators
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Bearing Replacement and Tear Down
WARNING
!
NOTE
NOTE
Before any adjustments vibrator should be electrically
"locked out."
All assembly/disassembly work must take place in a very clean environment
to avoid any contamination to the bearings. Always replace the grease seals
when bearings are replaced. Use only the recommended bearings and grease
as described in the “Lubrication” section of this manual.
These motors will produce bearing noise when they are run
without the eccentric weights. Please do not misconstrue this
bearing noise as necessarily meaning the bearings are bad. It
is simply due to the “loose” fit bearings used. However, when
the eccentric weights are attached and even a minimum of
centrifugal force is created, the bearings should quiet down. If
the bearings still make noise under load, it is evident there is a
damaged bearing.
Disassembly of
motor and
bearings
Do not simply request a bearing by using its first few call numbers, but use the
complete call numbers. To be sure you receive the correct bearing, order it
from Metalfab, Inc. Use only FAG or SKF bearings.
You must first remove the weight covers and weights. Next, remove the four
bolts holding the bearing flange to the stator housing. Then introduce two
weight cover bolts into the small tapped holes just next to the four bearing
flange bolts. By tightening these two screws into the bearing flange, you will
press out the bearing flange from the stator housing.
These small screws should be tightened evenly so as not to
bind the bearings on the shaft.
After the bearing flanges have been removed from the motor housing, you
may then remove the two aforementioned small screws from each bearing
flange and introduce them into the two small threaded holes that exist in the
bearing flange next to the bearing. Again, screw the two screws into the
bearing housing with even pressure to prevent binding of the bearing in the
bearing flange. If the bearing requires additional thread engagement for
removal, use a spacer or stack of washers for this purpose.
Next, it is necessary to remove the inner races of the bearing from the shaft. A
bearing puller will be required for this operation. Heat may be applied to the
inner race of the bearing to facilitate its removal from the shaft. If heat is
applied to the inner race, the bearing must be discarded.
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Page 15
Reassembly of new
NOTE
bearings
Before proceeding with bearing replacement it is necessary to:
1. Completely clean the bearing flange bore.
2. Check the bearing flange bore dimensions and compare with the outer
diameter of the outer race of the bearing. The bearing must have an
interference fit with the bearing flange seat. In other words, the outer
diameter of the bearing must be slightly larger than the inside diameter of
the bearing flange seat. Do not assemble the bearing into the flange if an
interference fit does not exist.
3. Be sure you keep the bearings together as a set, so the removable inner
races are not switched.
For reassembly of the new bearings, you must have a press of at least two tons
force that is adjustable from zero to two tons.
In order to press the bearings into the bearing flange seat, it is necessary to
machine a bearing pressing tube having slightly less diameter than the outer
diameter of the outer race of the bearing.
The inner side of this bearing pressing tube must be relieved
in order to avoid pressing on the bearing rollers, inner race, or
cage.
Reassembly of
motor
When inserting the bearing, lay the bearing flange on a flat ring with
machined surfaces and insert the bearings by means of the bearing pressing
tool. Use the least amount of pressure required for introducing the bearing
into the bearing flange seat. Make sure the bearing reaches the bottom ledge
of the seat.
Then lubricate the bearing by hand-packing with the appropriate grease (see
the "Lubrication” section of this manual. It is then necessary to replace the
bearing seal using the same pressing tool as was used for the bearing. For
inserting the bearing seal into the flange, carefully tap the seal in place with a
plastic hammer.
Reassembly of the inner race of the bearing onto the shaft should be done in
adherence with the above mentioned bearing pressing operation and without
the use of direct heat.
When reassembling the motor, be sure to tighten all bolts securely and use the
compression washers.
For reassembly of the motor, care should be taken when reinstalling the
second bearing flange into the motor housing. This second bearing flange
should be slowly and—most important—evenly introduced into the stator
housing to prevent binding the bearing onto the shaft and damaging the
bearing.
After assembling both bearing flanges, it is necessary to check the shaft for
axial movement. The axial clearance should be from 0.010 to 0.060 inch.
Metalfab, Inc. M3258-09/0811Electric Vibrators
Page 16
When the shaft keys and weights are reassembled, avoid pounding onto the
shaft. Doing so may mark the bearing surfaces and reduce the bearing’s life.
Make sure to test the motor for amp draw and any excessive heat rise at the
bearing flanges after reassembly. Note any unusual noises that may be present
while the motor is running under loaded conditions.