Rap 2.11 Interlock Test - Challenge CMT-130TC Service Manual

RAP 2.11 Interlock Test

The interlock switches used in the CMT-130TC
and accessories are comprised of switch bodies
that mount inside the trimmer or accessory, and
actuator keys that mount to each door. When a
door is closed, the actuator key engages fully
into the switch body. When a door is opened,
the actuator key pulls out of the switch body and
the interlock circuit becomes open and all mo-
tion stops. Use the following procedure to test
the operation of the interlock switches.
Procedure
1. Disconnect main power.
2. Open a door and locate the interlock switch
(Figure 2-11).
3. Use a screwdriver to pry the switch body
door open and expose the contacts.
4. Locate the normally open (N.O.) contacts
(Figure 2-12) and test continuity. There
should be no continuity at the normally open
contacts. Is this true?
Y N
The switch is defective and should be re-
placed (PL 5.12 Main Assembly 59000
(12/14) or PL 5.13 Main Assembly 59000
(13/14)).
WARNING
Do not operate the machine until this
switch is replaced and functioning
properly. Failure to do so could allow the
machine to operate in an un-safe state.
Serious injury or death may result.
5. Insert the test key, part number 45180-4,
into the switch.
CMT-130TC Book Trimmer
6. Locate the normally open contacts and test
continuity. Is there continuity on the nor-
mally closed contacts?
Y N
The switch is defective and should be re-
placed.
7. The switch is functioning properly. Repeat
the above procedure for all three switches,
and any infeed/outfeed accessories.
Figure 2-11. Interlock Switch Locations
MAY 2019
2-19
Figure 2-12. Interlock Switch Contacts
2. Status Indicator RAPs