INSTALLATION INSTRUCTIONS/
OPERATORS MANUAL
This manual provides
Installation & Operating instructions for
BUS-TRAC SYSTEM
NOTIFY CARRIER OF DAMAGE AT ONCE.
It is the responsibility of the consignee to inspect the
container upon receipt of same and to determine
the possibility of any damage, including concealed
damage. Avtec suggests that if you are suspicious of
damage to make a notation on the delivery receipt.
It will be the responsibility of the consignee to file a
claim with the carrier. We recommend that you
do so at once.
Manufacture Service/Questions 888-994-7636.
Information contained in this document is known to be
and accurate at the time of printing/creation. Unified Brands
recommends referencing our product line websites,
unifiedbrands.net, for the most updated product information and
specifications.
P/N PP MNL0804 9/08
current
1055 Mendell Davis Drive
Jackson, MS 39272
888-994-7636, fax 888-864-7636
unifiedbrands.net
TABLE OF CONTENTS
INSTALLATION INSTRUCTIONS
I .
I
I .
I I
I. MOTOR 2
IV. BEARING MAINTENANCE 2
V. CHAIN MAINTENANCE 2
BUS-TRAC INSTALLATION 1
CHAIN ASSEMBLY 1
A. Long Term
Tensioning
B. Short Term Tensioning 1
C. Wear Limit 1-2
D. Offset Link Removal 2
E. Tray Carrier Attachment 2
A. Brush Replacement 2
A. Schedule 2
B. Lub
A. Schedule 2
B. Lub
r i
cants 2
r i
cants 2
1
OPERATING INSTRUCTIONS
VI. OPERATION 2
A. Start/Stop 2
Switches
B. Speed Con
C. Op
VII. ELECTRICAL 2
REQUIREMENTS
USER-MAINTENANCE INSTRUCTIONS
V
I I
I. CLEANING 2
IMPORTANT SAFETY INSTRUCTIONS 3
GROUNDING INSTRUCTIONS FOR 3
PERMANENTLY CONNECTED APPLIANCES
IX. BUS-TRAC - UPRIGHT AND CARRIER DETAIL 4
X. BUS-TRAC: MOTOR CONTROLLER WIRING SCHEMATIC 5
XI. BUS-TRAC PARTS LIST 6
XII. CALIBRATION PROCEDURE FOR MOTOR CONTROLS 7
X
I I
I. BUS-TRAC HANGER - RETRO-FIT 8
XIV. PRESENT BUS-TRAC HANGER 9
XV. WARRANTY 10
t i
onal Limit Switch 2
t r
ol 2
I. BUS-TRAC INSTALLATION
A. It is important that the Bus-Trac be mounted
level in order to help ensure proper drive
component alignment which minimizes drive
train wear.
B. If the unit is supported by a wall, shims can
be placed between the Bus-Trac’s frame and the
top of the wall. These shims should be either
welded in place or held in place by the bolts
which secure the Bus-Trac frame to the wall.
C. If the Bus-Trac is supplied with a stainless
steel base, be sure that the floor area where the
base is to be located is flat and level. Secure the
base to the floor by bolting through the base
frame into the floor. Secure the Bus-Trac frame
to the base with the bolts supplied.
II. CHAIN ASSEMBLY
A.
Normal operation of the Bus-Trac causes
chain stretch and wear. The service life of the
Bus-Trac chain expires when it has stretched
3%. The original AVTEC chain is installed with
offset links which account for 3% of its total
length. Stretch is compensated for by removal
of the offset links. When all offset links are
removed the chain has reached its service limit
and must be replaced. Whenever chain
replacement is required the associated
sprockets should also be replaced.
B. Interim tension can be maintained without
removing any offset links. To do this, move the
shafts outward as follows: [Refer to fig. 1]
1. Loosen the gearbox mounting bolts [4]
and back-off the gearbox tensioning bolts [2].
2. Loosen the shaft bearing mounting nuts
[4 per bearing]. [Top and bottom]
3. Loosen the end wear strip mounting nuts
[3 per end piece].
4. Loosen the jam nuts on the bearing
tensioning bolts.
5. Adjust tension on the driven chain by
moving the bearings outward using the
bearing tensioning bolts until the chain slack
has been removed.
Adjust the tension by moving the driven
shafts outward equally at both ends. Use a
level to make sure that the shafts are vertical.
IMPORTANT: The upper and lower
tensioning bolts must be moved equal
amounts.
INSTALLATION INSTRUCTIONS
6. When the slack has been removed,
7. T
ighten the jam nuts on the bearing
tensioning bolts.
8. Tighten the shaft bearing mounting nuts.
9. Tighten the wear strip mounting nuts.
10.Remove the slack from the drive chain by
moving the gearbox/motor assembly
using the gearbox tensioning bolts.
11.Tighten the gearbox tensioning bolt jam nuts.
12.Tighten gearbox mounting bolts.
C.
When the shaft bearings and/or wear strips
have reached their outward limits, additional
tension is achieved by removing offset links from
the driven chain. When all of the offset links have
been removed and the shaft bearings and/or
fig. 1
1
wear strips have reached their outer limits, the
chain is considered to have reached its service
limit. Any additional wear would require replacement
of the driven chain and associated sprockets.
D. Offset links are removed by removing the
cotter pins from the roller chain shafts and
removing the end plates[s]. Re-assemble the
roller chain and insert new cotter pins to hold the
end plate[s] in place.
E. If the tray carrier attachment brackets must be
replaced, care must be taken when tightening
the nuts which hold the brackets in place. Overtorqueing the nuts could pull the shoulders off of
the roller chain shafts [Refer to fig. 2].
(FA WSH0313) (FA SCW3063)
(PL SPC0302)
III. MOTOR
A. Brush replacement @ 2500 hours or one [1]
year.
IV. BEARING MAINTENANCE
A. Lubricate [using Zirk fittings] after one [1]
month or 250 hours of operation.
B. Lubricate after every four [4] months or
500 hours of operation thereafter.
Recommended lubricants:
Lubrico Type M-6
AVTEC part no. FL LUB0302 Bearing Grease
V. CHAIN MAINTENANCE
A. Use a spray lubricant on the drive and
(FA NUT0330)
fig. 2
(RP BRK0516)
(HD BLK0302)
(HD CHN0301)
(HD PIN0301)
driven chains after one [1] month or 250 hours of
operation.
B. Lubricate after every four [4] months or
500 hours of operation thereafter.
Recommended lubricants:
McMaster Carr No. 6159K11 Roller
Chain Lubricant
VI. OPERATION
A. The Bus-Trac is equipped with one or more
pairs of push buttons which are used to start and
stop the motor. Depressing any of the start
buttons will start the tray carriers in motion.
Depressing any of the stop buttons will stop the
motor. These switches are intended to start and
stop the motor at the beginning and end of the
busing period or whenever the Bus-Trac will not
be used for an extended period of time.
B. The tray carrier speed can be changed
[when the Bus-Trac is on] by turning the speed
control knob. Turn the knob counter-clockwise
to slow the Bus-Trac and clockwise to increase
speed. [Maximum speed is approximately
sixteen feet per minute (16 fpm).
C. An optional limit switch may be provided
which will turn off the Bus-Trac if something
becomes caught on the tray carrier[s] or if
something protrudes too far beyond the edge of
the tray carrier(s). To resume Bus-Trac
operation, clear the obstruction, then press the
start button.
VII.ELECTRICAL REQUIREMENTS
120vac, 20 amps, 60 hz
VIII. CLEANING
A. It is important to keep the AVTEC Bus-Trac
clean in order to avoid an unsanitary condition.
The AVTEC Bus-Trac is designed with easy
cleaning in mind. It is recommended that
electrical power be turned OFF while cleaning.
Removable baskets can be cleaned in all types
of dish machines. Sponge the exterior of the unit
clean with warm, soapy water and wipe with a
clean towel. DO NOT HOSE DOWN the BusTrac, as this may remove lubricants from the
chain, causing premature wear. DO NOT USE
STEEL WOOL, SOS or BRILLO PADS or other
abrasive pads or cleaners on any part of the unit,
as it will mar the finish.
B. Individual 2 and/or 3 tier tray carriers may be
removed for cleaning and will fit in any 20” x 20”
dish rack. Carriers are located on certain tray
hanger rungs, according to specific operation.
2
WARNING - When using electric appliances, basic precautions should always be followed, including
the following:
a)
Read all the instructions before using the appliance.
b) To reduce the risk of injury, close supervision is necessary when an appliance is used near children.
c) Do not contact moving parts.
d) Only use attachments recommended or sold by the manufacturer.
e)
Do not use outdoors.
f)
For a permanently connected appliance - Turn the power switch to the off position when the appliance
is not in use and before servicing or cleaning.
IMPORTANT SAFETY INSTRUCTIONS FOR BUS TRAC
SAVE THESE INSTRUCTIONS
GROUNDING INSTRUCTIONS FOR PERMANENTLY CONNECTED APPLIANCES
This appliance must be connected to a grounded, metal, permanent wiring system; or an equipment-grounding
conductor must be run with the circuit conductors and connected to the equipment-grounding terminal or lead on
the appliance.
3
IX.BUS-TRAC: UPRIGHT AND CARRIER DETAIL
4
X. BUS-TRAC: MOTOR CONTROLLER WIRING SCHEMATIC
5
XI. BUS-TRAC PARTS LIST
ITEM NO. AVTEC PART NO. DESCRIPTION
1 HD BLK0302 UHMW Wear Block
2
3
4
6 RP CAR0601 Bus Trac S/S Upright w/integrated
Wheel and chain attachment brackets
7
8
9
10
11
12
13
14
15 RP PLT0301 Chain End Plate w/attachment
16
17 HD RED0303 Gear Reducer [24MDVD]
18
19
20
23 EL TPE0302 Re
24
25 HD BEA0314 Beam Switch (wall Mount)
26 EL TPE0306 Re
27 EL PTN0301 10K ohm Potentiometer
28 HD BRD0304 DC Motor Control Board
29
30 HD BRS0303 Brush Motor Replacement 1 hp
31
32 EL MTR0331 Motor, 1 hp
33
34
35
36
HD CAR0305
HD CAR0302
HD CAR0303
HD BRG0309
PL WHL0301
RP BRK0610
HD BRK0304
RP BRK0515
RP BRK0516
EL FUS0307
EL BLK0315
HD BRG0302
HD RED0304
EL SWT0304
EL SWT0305
EL SWT0314
HD BRS0301
EL MTR0203
FA NUT0416
FA WSH047
FA BLT4107
FA WSH0318
Bus
- T
rac Carrier Plastic Insert
2 Tier Tray Carrier S/S
3 Tier Tray Carrier S/S
WheelInsert
Wheel UHMW
S/S Lockout Bracket
Wheel Bracket
Chain Attachment Bracket “A”
Chain Attachment Bracket “B”
Fuse, 10 amp
Fuse Holder
Bearing
Gear Reducer [930MDVD]
Switch [Star
Switch [Stop]-Red w/N.C. Contact Block
f l
ector (arm mounted small round 1”)
Beam Switch (arm mounted)
f l
ector (sill mounted small rectangle)
Brush Motor Replacement 3/4 hp
Motor, 3/4 hp
1/4
- 2
0 Fiber Nut
1/
4 -
20 Washer S/S
1/4-20 x 1¼ Bolt S/S
Black Plastic Spacer
t]
-Green w/N.O. Contact Block
6
XII. CALIBRATION PROCEDURE FOR MOTOR CONTROLS
TOOLS REQUIRED:
Multi tester [Auto range]
Small Non-Metallic Screwdriver
Speed Indicator
Before connecting power supply:
1. Set the two slide switches for the correct input voltage.
2. Set the MAX SPEED pot to full counterclockwise.
3. Set the MIN SPEED pot to full counterclockwise.
4. Set the IR COMP pot to the setting shown below for the correct horsepower.
5. Set the TORQUE pot to the setting shown below for the correct horsepower.
With the power supply connected:
1. Set the multi tester to VOLTS AC and measure the input voltage to the control. If incorrect,
disconnect the power supply and correct the problem.
2. Disconnect the multi tester and set to measure VOLTS DC. Attach leads to the motor side of the
control.
3. Set the speed indicator on the front panel to 100 or full speed.
4. Adjust the MAX SPEED pot until the VOLTS DC equals the armature voltage listed on the motor
nameplate.
5. Calibration is complete.
7
XIII. BUS-TRAC HANGER - RETRO-FIT
8
XIV. PRESENT BUS-TRAC HANGER (Complete Part Number RP CAR0601)
9
XV. WARRANTY
-WARRANTY-
AVTEC INDUSTRIES INC. warrants to the original purchaser for use of our products, that any part thereof which
proves to be defective in material or workmanship under normal use within one year from date of ship date, will be
replaced free of charge, labor to replace such part is warranted for one year from ship date. All warranty labor to be
performed during regular working hours, with no overtime premium.
All Warranty service must be authorized by the factory and be performed by AVTEC’s authorized service
personnel.
This Warranty is limited to the United States and Canada.
This Warranty does not apply to any damage resulting from shipping, improper installation, accident, unauthorized
alteration, local codes not previously brought to the attention of AVTEC, misuse, or abuse; and does not cover loss of
food, other products or damage to equipment or property resulting from mechanical or electrical failure.
AVTEC neither makes nor assumes and does not authorize any other person to assume any other obligation or
liability in connection with its products other than that covered in this Warranty.
FOR THE NAME AND LOCATION OF THE NEAREST
AVTEC SERVICE AGENCY:
CALL:
OR VISIT OUR WEB SITE AT: WWW.UNIFIEDBRANDS.NET
888-994-7636
10
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