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Vibratory Feeders

7

COIL REPLACEMENT 

Refer to the Parts List Drawing and Figs. 4, 5, 6 & 7

The following procedure should be followed in 
removing and replacing the electrical assembly, 
which includes the coil:

1.  Remove both nameplates and insert the two 

gap spacers (furnished with the unit) between 
the E-frame center leg and the two armature 
pole pieces (see Figure 4 & 5).

GAP 
SPACERS

HD-46C .25

HD-56C .25
HD-66C .25

FEEDER AIR GAPS

FIGURE 5

AIR GAPS - ADJUST TO .093" (2.4 MM)

AIR GAP

.25

Figure 5

Figure 4

2.  Remove, in order, the bolts securing the 

upper end of the rear tuning spring stack to 
the tiebar. Lift the tray-tiebar-lever assembly away 
from the body housing (see Figure 6).

Figure 6

FRONT TUNING 
SPRING STACK

TIE BAR

REAR 
SPRING 
STACK

3.  Remove the bolts securing the electrical assembly 

to the body housing and lift the assembly out of the 
body housing (see Figure 7)

Figure 7

E-FRAME

ELECTRICAL
ASSEMBLY

COIL

BODY HOUSING

SPRING 
BAR

DIAPHRAGM

4.  If the coil is defective, the entire E-frame assembly 

including the coil must be replaced (order from Eriez 
parts list).

5.  In reassembling the unit, first center the armature 

at the bottom of the body cavity; then insert the 
E-frame into the body cavity, making sure that the 
center leg enters the space between the armature 
pole pieces. Insert the bolts securing the electrical 
assembly and fasten only finger tight.

Summary of Contents for HD-46C

Page 1: ...ation Operation and Maintenance Instructions ERIEZ WORLD HEADQUARTERS 2200 ASBURY ROAD ERIE PA 16506 1402 U S A WORLD AUTHORITY IN SEPARATION TECHNOLOGIES VIBRATORY FEEDERS MODELS HD 46C HD 56C HD 66C VM 3169B ...

Page 2: ...details the proper steps for installing operating and maintaining the Eriez Vibratory Feeder Careful attention to these requirements will assure the most efficient and dependable performance of this equipment If there are any questions or comments about the manual please call Eriez at 814 835 6000 for Vibratory Feeder assistance 2019 ERIEZ MAGNETICS ALL RIGHTS RESERVED ...

Page 3: ... 56C HD 66C INSTALLATION 4 Mounting 4 Electrical Connections 4 OPERATION AND MAINTENANCE 4 Tuning Guide 4 Tuning for Non Standard Trays 5 Tuning for Different Conditions of Tray Loading 6 REPAIRS 6 Coil Replacement 7 Spring Replacement 8 Armature Replacement 9 TROUBLESHOOTING 11 ...

Page 4: ...in stiffness are obtained by changing the number of springs in the stacks and or by changing the thickness of carbon fiber springs In normal operation at full voltage the total displacement for standard size trays measured at the back of the tray is 9 64 to 11 64 3 5 mm to 4 3 mm For trays substantially larger than standard this normal displacement range should be reduced Refer to the serial numbe...

Page 5: ...igher ply springs as they will fail TUNING FOR NON STANDARD TRAYS Note See Special Trays and Attachments If it is necessary to tune the unit for a non standard tray follow this procedure 1 Attach the tray making sure that all lockwashers are in place and the fasteners tight 2 Energize the unit at the nameplate voltage and frequency 3 a During tuning if a hammering or striking noise occurs when the...

Page 6: ...t contains Rare Earth Magnets Strong magnetic fields are present at assembly CAUTION STRONG MAGNET This equipment includes one or more extremely powerful magnetic circuits The magnetic field may be much stronger than the Earth s background field at a distance several times the largest dimension of the equipment If you use a heart pacemaker or similar device you must never approach the equipment be...

Page 7: ...k to the tiebar Lift the tray tiebar lever assembly away from the body housing see Figure 6 Figure 6 FRONT TUNING SPRING STACK TIE BAR REAR SPRING STACK 3 Remove the bolts securing the electrical assembly to the body housing and lift the assembly out of the body housing see Figure 7 Figure 7 E FRAME ELECTRICAL ASSEMBLY COIL BODY HOUSING SPRING BAR DIAPHRAGM 4 If the coil is defective the entire E ...

Page 8: ...uning springs are removed If after inspection of the rear tuning spring stack the front stack is suspected use the ARMATURE REPLACEMENT procedure as a guide for reassembly with special attention to the washer shaped spacers between the spring bar and armature Carefully examine each tuning spring for signs of delamination or breakage especially in the area next to the spring A failed spring can be ...

Page 9: ...housing when going through the opening TABLE 1 TORQUE CHART 46 56 Series Part Bolt Torque Size m kgs ft lbs Rear Spring Bolts M14 2 11 8 85 3 Torsion Spring Bolts M12 1 75 7 4 53 5 Front Tie Bar Bolts M14 2 11 8 85 3 Front Spring Bolt M14 2 11 8 85 3 Electrical Ass y Bolts M8 1 25 2 4 17 4 Tray Mounting Bolts M8 1 25 3 0 22 66 Series Part Bolt Torque Size m kgs ft lbs Rear Spring Bolts M16 2 17 3 ...

Page 10: ...at the line frequency We have shown the polarity of the electromagnet as it would exist on one side of the sine wave Note that both poles of the permanent magnet are being attracted toward the unlike electromagnet poles They are also being repelled in the same direction by the like electromagnet poles This results in four forces accumulating to drive the armature in the same direction It also resu...

Page 11: ...on NATURE OF PROBLEM Table 1 SERVICE CHART 1 Misapplication Feeder too small Product difficult or impossible to handle Impossible temperatures or atmospheres Impossible dimensional requirements Feeding requirements too precise or excessive Consult Eriez 2 Tampering or Changing of Base or Tray Improper disassembly extensions covers weights screens or other modifications or attachments may have affe...

Page 12: ...nd eliminate striking use more or thicker tuning springs 10 Poor or Broken Weld on Tray Check and correct 11 Incorrect Factory Adjustment See maintenance instructions Gap adjustments 12 Sympathetic Vibration in Other Equipment Check and correct 13 Contact with Other Equipment Check and correct 14 Line Voltage or Hz Variation Check and install voltage regulator if necessary Check Hz on output side ...

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