A.J. Antunes & Co VCT-20 9200552 - Manual (Page 21)

21
VERTICAL CONTACT TOASTER
P/N 1010719 Rev. E 02/13
Product is under-toasted or
platen heat is too low or
drop time is too fast
(continued).
Product is getting stuck or
conveyor belts stop when
product is toasting.
Temperature display control or platen
inoperative.
Conveyor drive motor inoperative or
incorrect conveyor motor installed in
toaster.
Bun adjustment controls set
incorrectly.
Conveyor belt wrap missing or not
installed properly.
Conveyor belt wrap or release sheet
not clean.
Not enough voltage, defective power
cord or rocker switch.
To check temperature display control, allow
unit to warm up for 30 minutes, then:
1. Check platen temperature at the center
of platen (with conveyor belt wrap, con-
veyor belt, tensioners and release sheet
removed). Use a pyrometer to confirm
temperature readings.
2. After platen temperature reaches a maxi-
mum of 559° -561°F (292°- 293°C) and
auxiliary heaters reach a maximum of
339°- 341°F (170°- 172°C), and the tem-
perature begins to drop, the heat indica-
tor light on the temperature control board
should turn on. If test readings do not
agree with these figures, replace temper-
ature display control.
To check platen:
Use an Ohm meter to test resistance of the
platen heater (disconnect 1 wire to isolate
heater). Correct cold resistance for heating
element of platen is 17.81 Ohms at
208V/2550 Watts. The auxiliary heaters are
108.2 Ohms at 208V/400 Watts.
To check drive motor:
1. Measure resistance of motor coil.
Replace motor if coil measures either
open circuit or zero resistance.
2. Mark the drive motor sprocket and count
the turns per minute. Correct drive motor
speed is nine (9) turns per minute.
Measure bun thickness and set bun adjust-
ment controls correctly (page 8).
Install conveyor belt wrap properly (page
13).
Clean respective items. Refer to
Maintenance Schedule (page 11)
Check receptacle for correct voltage. See
Specifications (page 4).
With unit plugged in and rocker switch on,
check for correct voltage into rocker switch.
If low or zero voltage, replace power cord.
If voltage is correct, check for correct volt-
age out of rocker switch. If low or no volt-
age, replace rocker switch.
Problem Possible Cause Corrective Action