Bunn -O-MATIC ULTRA-1 - Manual (Page 47)

47
Removal and Replacement:
1. Disconnect the lamp cord assembly from the lamp
cord connector assembly in the top of the auger
motor cover.
2. Remove the hopper cover with the lamp cord as-
sembly from the hopper.
3. Remove hopper cover liner from the hopper
cover.
4. Cut off the closed-end splices connecting lamp cord
assembly to the lamp holder/socket assembly.
5. Remove the two lamps.
6. Remove the two #2-56 screws and elastic lock
nuts securing the lamp holder/socket assembly to
the mounting bracket. Remove lamp holder/socket
assembly and discard.
7. Install new lamp holder/socket assembly on mount-
ing bracket using two #2-56 screws and elastic lock
nuts.
8. Reinstall lamps.
9. Strip the wires from the lamp cord assembly ap-
proximately .38”.
10. Using the two wire nuts, supplied, connect the
lamp cord assembly to the new lamp holder/socket
assembly wires.
11. Reinstall the hopper liner to the bottom of the hop-
per cover.
12. Reinstall the hopper cover to the hopper.
13. Plug in the lamp cord assembly to the lamp cord
connector assembly on left top of the auger motor
cover.
14. Refer to Fig. 50 when reconnecting the wires.
FIG. 50 LAMP HOLDER/SOCKET ASSEMBLY
WIRES
P1322
SERVICE (cont.)
LAMP HOLDER/SOCKET ASSEMBLY
FIG. 49 LAMP HOLDER/SOCKET ASSEMBLY
Location:
The lamp holder/socket assemblies are located
inside the hopper covers.
Test Procedures:
1. Disconnect the lamp cord assembly from the lamp
cord connector.
2. Remove the lamps from the lamp holder/socket
assembly.
3. With a voltmeter, check the voltage across the pin
sockets in the plugs in the “DAY” mode. Reconnect
the lamp cord to the lamp cord connector. The
indication must be approximately 12.6 volts dc.
4. Disconnect the lamp cord from the lamp cord con-
nector.
If voltage is present as described, the lamp holder/
socket assembly is operating properly.
If voltage is not present as described, replace the lamp
holder/socket assembly.
5. Check for continuity across the terminals on the
lamps.
If continuity is present as described, the lamps are
operating properly.
If continuity is not present as described, replace the
lamp.
ULTRA-2 shown
41084 102709