Urschel COMITROL 2100, Instruction Manual

Page: 124 / 166

46
INSPECTION
WARNING: In the event of an electri-
cal problem, only a qualified electrician
should inspect or repair the fault. Volt-
ages dangerous to life exist in the
starter enclosure! The power discon-
nect/lockout switch must be in the “O”
(OFF) position. Live voltages are still
present in the box even though discon-
nect is off. Always disconnect and lock
out power source before beginning
electrical inspection or repair.
The electrical assembly must be in good
working condition before operating this
machine. For a description of the amplifier
and safety switch operation and method for
checking this system, see pages 12–15.
Electrical schematics are located in the
starter enclosure and on pages 80–81.
Refer to Figures 34 and 35 and inspect the
following:
Electrical enclosure: Inspect interior of
electrical enclosure for corrosion. If a signifi-
cant amount of water accumulates in the
bottom of the starter enclosure, check the
breather drain. Breather drain should be
free from obstruction. Excess water could
also indicate an opening or loose fitting that
allows water to enter the enclosure. Check
all access points to the enclosure. Check
the gasket around door and window. Inspect
the push button assemblies and pilot light
assemblies for damage or corrosion.
Replace rubber boots and pilot light lenses if
damaged.
NOTE: Electrical components that fail
due to water or chemical contamination
are not covered under the warranty.
MAINTENANCE
Electrical Assembly
Figure 34 — Typical starter enclosure interior
(NEMA). (1) Circuit Breaker, (2) Starter Coil,
(3) Heaters, (4) Amplifier, (5) Transformer,
(6) Transformer Fuses, (7) Fuses, Feed Screw
Motor, (8) Fuses, Agitator Motor, (9) Relay
*National Electrical Manufacturers Association
5
7
8
3
2
9
6
1
4
See the Addendum for
updated information