There Is A Loud Popping Or Clicking Noise; Only When The Fold Table Is Trying To Home; Anytime The Fold Table Is Trying To Move; The Fold Table Pointer Does Not Match The Lcd Display - Martin Yale 2051 Installation Operation & Maintenance

Martin Yale 2051 Folder
®
7. Main Controller PCB may be defective. Service Required.

There is a loud popping or clicking noise...

9.3

9.3.1 ...Only when the Fold Table is trying to Home.

1. If the Fold Table is all the way inward (closest to the Rollers), the Home Sensor may have failed.
a. Check to see if the sensor is functioning.
b. Check all electrical connections
2. If the Fold Table is NOT all the way inward, there is a blockage in the Fold Table. Turn off the
power and clear the Fold Table blockage inside the Fold Table.

9.3.2 ...Anytime the Fold Table is trying to move.

1. If the Fold Table is at the maximum or minimum position, it's possible that the Fold Tables have
become lost. Perform the following steps.
a. Turn the folder power off.
b. After 3 seconds, turn the power back on and wait for the Fold Tables to home.
c. After the Fold Tables are in the Home position, press either the First or Second Fold Table
button.
d. Using the number pad, enter a value of 6.00 inches (or 15cm if units are set to Metric).
e. If the Fold Table does not stop within .2 inches (or 5mm if units are set to Metric) of the
value specified above, then the Fold Table Drive is faulty. Service Required.
2. If the Fold Table is not at either the minimum or maximum position, there is a blockage in the Fold
Table. Turn off the power and clear the Fold Table blockage inside the Fold Table.
9.4

The Fold Table pointer does not match the LCD display.

The pointers are for reference only and are not normally used except in the event of a Fold Table
Drive encoder failure (Limp Mode). In the event of an encoder failure, the pointers can be used to
manually set the fold tables to continue folding. However, if the difference is greater than .1 inches,
continue with next step below.
1. Insure that the mechanical components in the Fold Table are not slipping.
2. Insure that the output gear on the Fold Table Drive is secure.
3. Insure that the Fold Table Offsets are correct before proceeding. See section 7.8.1 - Fold Table
Home - #1 & #2, for more information.
4. Insure that the Fold Table Drive encoders are functioning correctly. See section 7.6.2 - Exercising
the Drives, for more information.
9.5

The location of the fold is not correct.

1. Insure that the actual paper length matches the folder setting.
2. Manually adjust the Fold Table positions to produce the desired fold.
3. To further diagnose this problem, follow the steps in section 9.4.
9.6

The Stack Wheels are not moving when they should be.

9.6.1 There is a clicking noise.

1. If the Stack Wheels are at their minimum position (closest to the rollers) and still trying to move
inward, the Stack Wheel limits are not set. Refer to section 7.8.5 - Stack Wheel Home.
Revision 3.0 Martin Yale Industries, Wabash, Indiana, USA 260-563-0641
(2051.09.03.16.11.40)
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