Debugging; Electrical; Sensors; Switches - Martin Yale 2051 Installation Operation & Maintenance

Martin Yale 2051 Folder
®

10 Debugging

10.1 Electrical

Most electrical problems encountered will require you to enter Diagnostics (Section 7.3, Option 2 –
Input Sensor Mode). This is the best way to determine if a sensor or switch is functioning correctly.

10.1.1 Sensors

Check all electrical connections between the Main Controller and the sensor, to include wires. This can
be done using a "known good" sensor and/or wire assembly by connecting either item to the main
controller, one at a time until the problem is found.

10.1.2 Switches

Check all electrical connections between the Main Controller and the switch, to include wires. This can
be done using a "known good" switch and/or wire assembly by connecting either item to the main
controller, one at a time until the problem is found.

10.1.3 Motors

Check all electrical connection between the Main Controller and the motor. Sometimes crimp terminals
can become loose and wires will fall out of them, or they become disconnected.

10.2 Mechanical

10.2.1 Fold Table

To insure that the mechanical components in the Fold Table are not slipping, perform the following
step;
1. With the Fold Table removed from the folder, restrain the pointer with your finger.
2. Rotate the gear on the bottom of the Fold Table.
3. There should not be any play in the gear. If there is play between the gear and the pointer, service
is required.

10.2.2 Stack Wheels

The following steps should only be performed by a qualified service technician.
1. Remove the Top Cover from the Stack Wheels.
2. Inspect the drive belt integrity. Replace if broken or damaged.
3. Confirm drive belt tensioner is in-place and that there is adequate belt tension.
4. If the drive belt is loose, check the belt tensioner to insure that the tensioner stays in-place when
the belt is re-tensioned (tensioner is pressed down into plastic). If the tensioner does not stay
locked into the plastic, replace the Stack Wheel Assembly.
5. Insure that the pulley on the motor is secure to the motor shaft by trying to rotate the gear by hand.
6. Using the instructions in section 3.3 - Stack Wheel Position, Manually move the Stack Wheels. If
the motor is not moving, refer to section 10.1.3 - Motors.
7. If the motor is functioning correctly, but the display is not changing and showing the correct position
of the Stack Wheels, refer to section 10.1.1 - Sensors.
8. If the motor is functioning correctly, and the display is changing, but the position is incorrect,
resetting of the position sensor is required;
Revision 3.0 Martin Yale Industries, Wabash, Indiana, USA 260-563-0641
(2051.09.03.16.11.40)
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