Testing And Inspection; Feed Clutch - Martin Yale 2051 Installation Operation & Maintenance

Martin Yale 2051 Folder
®
a. Per section 3.3 - Stack Wheel Position, manually move the Stack Wheels to the minimum
position.
b. By hand, rotate the pulley on the position sensor clockwise (as viewed from the operator
position) until it will not rotate any further. This is the absolute minimum position of the
sensor. Skipping past the teeth on the pulley will be required when rotating.
c. Once the position sensor is at the minimum position, skipping pulley teeth, rotate (by hand)
the pulley on the position sensor back (counter clockwise) at least 7 teeth, but no more than
20.
d. Replace the Top Cover and follow the steps in section 7.8.5 - Stack Wheel Home, to re-
teach the Stack Wheels.

11 Testing and Inspection

11.1 Feed Clutch

1. Turn off the folder and unplug the power cable.
2. Open the Top Cover
3. Either adjust the Retarder down or hold down the Retarder Release
4. Using you hand, rotate the Feed Wheel. Does the Feed Wheel spin freely in only one direction?
a. Yes – Clutch Spring is functioning correctly
b. No – Tight both directions (replacement of the Feed Clutch assembly is required).
i. Spring may be jammed between the Clutch Shaft and the Gear Hub.
ii. Clutch Spring may have become unwrapped.
5. Using the Dejam Tool, turn the rollers clockwise several revolutions. Does the Feed Wheel
continuously rotate with the rollers?
a. No – The Clutch Spring is releasing properly.
b. Yes – The Clutch Disconnect is not resetting properly (replacement of the Feed Clutch
assembly is required).
i. The Disconnect capture nut could be too tight.
ii. There could be a burr in the Disconnect pivot hole.
iii. The Clutch could be out of adjustment (tampered)
6. With the Retarder properly adjusted (slight friction against the Feed Wheel), connect the power
cable to the folder and turn on the power.
7. Enter diagnostics #4, auto-cycle the Clutch. Does the Clutch cycle in a consistent manner?
a. Yes – No adjustment needed
b. No – Disconnect not releasing like it should (replacement of the Feed Clutch assembly is
required). Possible causes are;
i. Disconnect capture not is too tight, not allowing the Disconnect to rotate and
ii. The Disconnect pivot hole has a burr, not allowing the Disconnect to rotate and
iii. Clutch electrical cable not plugged in.
iv. A wire has fallen out of a connector.
v. The Clutch is worn.
vi. Weak solenoid
vii. Main PCB controller failure
Revision 3.0
release when it should.
release when it should.
1. What is the Clutch Count
Martin Yale Industries, Wabash, Indiana, USA 260-563-0641
(2051.09.03.16.11.40)
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