FMC Technologies Syntron DL-1-A Owner's manual

Syntron®
DL-1-A Dental Vibrator
■Installation ■Operation ■Maintenance
©2002 FMC Technologies, Inc. All rights reserved SM1115- 071703

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Thank you for buying your equipment from FMC. This manual will help you to understand how your
equipment operates and what is required to maintain peak performance. Please read it thoroughly and
keep it on file for reference.
Your satisfaction is important to us, so pease direct any comments to our Marketing Communications
Department.
TABLE OF CONTENTS
Safety Instructions ............................2
Inspection and Storage.....................2
Introduction.......................................3
Installation.........................................3
Maintenance .....................................3
Air Gap..............................................4
Operating Specifications...................5
Field Repairs.....................................5
Troubleshooting................................5
Parts List...........................................6
Wiring diagram..................................8
The DL-1-A Dental Vibrator is ”classsifed by Underwriters Laboratories Inc.® with respect to
electric shock, fire and mechanical hazards only in accordance with UL2601-1, (UL2601-1-XX, if
applicable), (UL2601-1-2-XX, if applicable)”.
The DL-1-A Dental Vibrator is also CSA certified per file #LR 53131.
SAFETY INFORMATION
WARNING: These instructions and safety precautions must be followed. There is a hazard of electrical
shock to the operator.
NOTE: Local safety codes and regulations must be considered when operating this equipment.
WARNING: Failure to follow these instructions and procedures could result in personal
injury, unsatisfactory performance, and /or damage or shortened service life.
WARNING: Unauthorized modifications to the equipment may present a safety hazard to the
operator and void the warranty.
Modifications or additions to the equipment should not be made without first cosulting FMC Corporation.
WARNING: Power supply voltage and frequency must be the same as that designated on the
nameplate.
Power supply voltage and frequency other than that designated on the nameplate may damage the unit.
Product safety labels must be highly visible. Check their visibility regularly. Do not remove or
paint over safety labels. Contact FMC Corporation for an additional supply, free of charge, if labels

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need replaced,
INSPECTION AND LONG TERM STORAGE
Upon receipt, carefully unpack and inspect the DL-1-A Dental Vibrator for any damage that may have
occurred during shipment. If damage is found, notify the shipping carrier and FMC immediately.
If the DL-1-A Dental Vibrator is to be stored for an extended period of time, store the unit indoors in its
original shipping carton. Ambient temperature should not exceed 100°F (40°C). Outdoor storage or storage
under extreme conditions is not recommended.
INTRODUCTION
The Syntron® DL-1-A Dental Vibrator is designed for the processing of dental molds. A magnet assembly
produces a vibrating action which is transmitted to the deck through a system of leaf springs. The control
assembly includes an ON/OFF switch, a rheostat to control the amplitude of vibration, and rectifier to
convert from AC to DC current. The DL-1-A vibrator weighs approximately 25 pounds and must be lifted by
the base only.
The DL-1-A vibrator is rated at 115V or 230V, as specified at the time of manufacture. It can operate at
either 50 or 60 Hz, with no adjustments required. At 60 Hz operation, the vibrator produces an operating
frequency of 3600 vpm. 50 Hz operation produces an operating freqency of 3000 vpm. If a different
vibration output is desired, then the air gap must be changed (refer to Air Gap, page 4).
WARNING: Power supply voltage and freqency must be the same as that designated on the
nameplate.
INSTALLATION
Place the DL-1-A vibrator on a solid support that does not vibrate while the vibrator is operating. The deck
should not touch any rigid object or adjacent surface; it must be able to vibrate freely.
CAUTION: Lift the vibrator by the base only. Lifting it by the top deck may cause damage.
OPERATION
Once the dental vibrator is in its operating location, plug it into a self-grounding receptacle. Turn the switch
to the ON position and place a dental mold on the deck. The strips on top of the deck will keep the mold in
position while the investment is poured.
Turn the rheostat knob clockwise to increase vibration amplitude. Turn the switch to the OFF position to
stop the vibrator.
MAINTENANCE
WARNING: Disconnect and lock out the power supply before performing any maintenance on this
equipment.
Use a mild household cleaner and water to clean the dental vibrator. Do not use excessive water; a damp
cloth is sufficient. Wipe the unit dry. DO NOT use acids for cleaning. To remove dental cement from the
neoprene deck, remove the deck and simply flex it. Do not twist it tightly or crease the deck.

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If an apparent problem exists, do not operate the dental vibrator. If parts are found to be defective, they
must be replaced immediately.
AIR GAP
The air gap is the space between the pole faces of the armature and the core. Low current draw indicates
that the air gap is too narrow, resulting in a striking condition.
WARNING: A striking condition can cause damage to the vibrator. If a striking condition exists,
immediately shut off power to the vibrator.
Excessive current draw indicates that the air gap (the gap between the core and the armature pole faces)
is too wide. An excessive current draw can result in heat buildup. The dental vibrator should run warm, but
not too hot to touch.
WARNING: Do not operate the vibrator if there is excessive current draw.
If either condition exists, an adjustment of the air gap is required. The air gap must be adjusted while the
vibrator is in operation.
WARNING: When adjusting the air gap, exercise caution to prevent electrical shock to personnel or
damge to the vibrator.
To adjust the air gap, perform the following steps:
Place the dental vibrator in a position to gain access to the
adjustment screw on the bottom of the vibrator. FMC
recommends placing the unit between two tables (sse
Figure 1). Supporting the vibrator by the deck, or hand-
holding the unit will adversely affect the air gap adjustment
since the unit must be supported by its rubber feet.
Plug in the electrical cord and turn on the vibrator. Turn the
dial to ”100”. Using a 5/32-inch Allen wrench, loosen the
socket head cap screw located in the core on the bottom of
the vibrator.
Use a slotted blade screwdriver to adjust the air gap using the slot in the core. Turn the core clockwise to
reduce the air gap (lower the current draw), and counterclockwise to widen the air gap (increase the
current draw). To adjust the air gap to the proper setting, turn the core clockwise until a striking condition
exists, then immediately turn the core counterclockwise, just until the striking stops. Check the current
draw.
NOTE: When using an analog tong meter to read the vibrator current, the meter reading must always be
multiplied by a factor 1.7. Due to the waveform characteristics of the vibrator, the tong meter does not
reveal the current rating designated on the nameplate. When using a true RMS meter, the current is as
indicated.
When the proper air gap has been achived (indicated by the current draw), lock the core in place by turning
the socket head cap screw in the end of the core. The dental vibrator is now ready for further operation.

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OPERATING SPECIFICATIONS
MAXIMUM LOAD OPERATING FREQUENCY CURRENT RATING
10 lb 3600vpm 1.0 Amps – 115V
0.5Amps – 230V
FIELD REPAIRS
The following tools are required to adjust the air gap or make field repairs to the dental vibrator:
•5/32 inch Allen wrench
•1/2 inch socket wrench
•Slotted blade screwdriver
•Ammeter
TROUBLESHOOTING
PROBLEM CAUSE CORRECTION
Unit does not Operate Defective rheostat
Shorted wiring, loose connection,
no power to the unit
*Replace
Repair
Unit operates, but will not vibrate
Unit in contact with rigid object
Or adjacent surface
Defective rubber feet
Defective springs
Defective rectifier
Isolate unit
*Replace
*Replace
*Replace
Excessive noise
Armature and magnet
Assemblies making contact
Adjust air gap
* Replace only with parts supplied or recommended by FMC Technologies.

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DL-1-A DENTAL VIBRATOR PARTS LIST
ITEM DESCRIPTION QTY PART NO
A Rubber Deck 1 B-102616
B Top Cover 1 A-91806
Cap Screw, Fl. Hd. Stl. (1/4”-20 x 5/8”) 4 H0402800
C Cover Support 1 A-91814
D Spring Clamp 2 A-91816
E Spring 2 B-224564-002
F Spacer 2 A-97983-2
G Spacer 8 A-91817
H Coil Clamp 1 A-91810
Cap Screw, Hex Hd. (5/16”-18 x 1/2”) 4 H0306401
J Coil Washer 2 A-81849
K Armature 1 A-91812
M Core 1 A-91811
Cap screw, Soc Hd. (#10-32 x 1/2”) 1 H0419600
N Coil (115V) 1 A-91805-A
Coil (230V) Only A-91805-B
P Base 1 B-90992-A
Q Rheostat 1 0052X168
R Base Cover 1 B-91807-A
S Lockwasher, Ext Tooth, Shakeproof (3/8”) 1 H0113204
Dial 1 A-87522-A
Knob 1 0118X013
Tube 4 0035X001
T Lockwasher, Shakeproof (1/4”) 4 H0112705
Foot 4 0297X024
Mach. Screw, Rd. Hd. (1/4”-20 x 3/4”) 4 H0205101
U * Label (Disc. Elec.) 1 A-125694
V Switch 1 0051X477
W Cable Assembly (115V) 1 A-99587-A
Cable Assembly (230V) Only A-107362
X Rectifier Assembly (115V) 1 A-175582-B
Rectifier Assembly (230V) Only A-175582-C
Y * Nameplate 1 A-97338
Z * Label (UL) 1 A-133985-B
AA Machine Screw, Rd. Hd. Br. (#10-32 x 1/2”) 1 H0203402
Lockwasher (#10) 2 H0112404
Groundstrap Assembly 1 A-164473-A
Hex Nut, Br. (#10-32) 2 H0101003
BB Armature Plate 1 A-91813
CC Spacer 4 A-91819
DD Spacer 2 A-91818-2
EE Cap screw, Hex Hd. (5/16”-18 x 1-1/8”) 8 H0307301
FF Cap Screw, Hex Hd. (5/16”-18 x 1-1/2”) 1 H0307501
GG Mach. Screw, Rd. Hd. Br.(#10-32 x 3/8”) 1 H0203102
Lockwasher #10 int. shakeproof Ni. Pl. 2 H0112305

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* Do not remove or paint over safety labels. If safety labels need replaced, contact FMC Corporation for an
additional supply, free of charge.

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FMC Technologies, Inc.
Homer City, Pennsylvania 15748
Phone [phone]
FAX: [phone]
Email: [email protected]
Web: www.fmcsyntron.com
DL-1-A DENTAL VIBRATOR WIRING DIAGRAM
FMC Technologies, Inc. reserves the right to alter at any time, without notice and without liability or other obligations
on its part, materials, equipment specifications and models. FMC Technologies, Inc. also reserves the right to
discontinue the manufacture of models, parts, and components thereof.