M&R Challenger II 12 COLOR, Manual, Page: 91 / 176

Troubleshooting Procedure
M&R Printing Equipment, Inc. - Glen Ellyn, Illinois
83
PROBLEM PROBABLE CAUSE/SOLUTION
No power to main control panel.
Neither print stations or index sys-
tem operate.
Electrical power is indicated to con-
trols, but nothing operates.
1. “ON/OFF” toggle switch located on the side of the control panel box is in the “OFF”
position. Check the “ON/OFF” toggle switch and be sure it is selected for the “ON”
position.
2. The circuit breaker for the incoming electrical power to the equipment has
tripped. Check for the proper incoming electrical power at the incoming power ter-
minal block on the equipment. Reset the circuit breaker as necessary.
3. The control power 3 amp circuit breaker has tripped. The circuit breaker will have
wires #6 and #7 attached to it. After replacing fuse, and turning power back on to the
machine, check for 230 vac across wire # 13 and wire #14 with a volt meter.
4. A short circuit exists in the 24 volt DC power circuit of the press. Check for 24 VDC
across wires #3 and #4 with a volt meter. If no voltage is present check 3 amp circuit
breaker, The circuit breaker will have wires #13 and #14.
5. A print station proximity switch may be damaged or inoperative. Check for any dam
age (Ex: pinch points on proximity switch wires and/or cables) to print station prox-
imity switches and replace as necessary.
1. There may be insufficient air pressure to the equipment (100 lbs. minimum per
square inch). Check to be sure that your compressor is turned “ON” and the shut-off
valve is open. Adjust the main air regulator to at least 100 lbs. minimum per square
inch.
2. Carousel arms are not located in the correct position. Manually move the index table
into the lock position, the index clevis will lock into place.
3. One of the yellow cycle interruption cords between print stations is disconnected.
Check to be sure all yellow cycle interruption cords are properly connected. Clean
away ant ink that may have accumulated on the cord surface.
The following information is provided as a guide for troubleshooting in the event a problem may occur during the
operation of your M&R Challenger Series II press. Should you have any questions regarding the installation, oper-
ation or preventive maintenance procedures for this equipment, we strongly encourage you to contact our
Equipment Service Department at 1 (630) 858-6101 during normal business hours, or our 24 hour Emergency
Service hotline at 1 (630) 462-4715 in the evening, week ends or holidays.
It is further recommended that persons using this troubleshooting guide have a working knowledge of electrical
power and control systems, and in addition are thoroughly familiar with the operation and adjustment of the com-
ponents and control devices used on this equipment before attempting to replace or adjust components of this
equipment.
IMPORTANT! Experience has shown that many problems can be Operator induced. It is important to check that
the main electrical power lines to the equipment are “ON” , and that the manual power “ON/OFF” switch is “ON”.
Challenger II
mrprint.com