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GMC ETV Troubleshooting Manual

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ETV trouble shooting guide

Typical faults:

1- Bad cutting / bending

2- Length jumping

3- Double cutting

1 Knife adjusting:

Removing the knife brake-bar.

When removing the brake-bar, check the green rubber, and make sure it is not worn down.

II.

Removing the upper knife.

NOTE: The knife is sharp and should be handled with care!

The knife is held in place by four nuts and springs, and two plates. By removing these the top knife

will be loose, take care the knife does not fall off the bolts. This can cause injury or damage to the

knife.

Page 1 ETV trouble shooting guide Typical faults: 1- Bad cutting / bending 2- Length jumping 3- Double cutting 1 Knife adjusting: Removing the knife brake-bar. When removing the brake-bar, check the green rubber, and make sure it is not worn down.
Page 2 When the upper knife is flipped down you can gain access to the bottom knife, and adjust it from here. If you need to remove the knife completely, this can be done by loosening the two bolt in each side of the knife. III.
Page 3 The bottom knife can also be adjusted via the threaded holes located by the mounting bolts, however this should only be done after consulting with the manufacturer, if done incorrectly it can damage the knife. 2 Adjusting the brake: Start with removing the brake-bar Check all parts for marks or other damage.
Page 4 Adjusting the magnet of brake. Adjust the magnets and place the brake-bar back. Distance between rubber strip and brake-bar should now allow two to three layers of material to pass through, there should be friction when trying to pass through 4 layers. The adjustment is checked by starting the sheeter and running length mode, with approx.
Page 5 3- Adjusting the cut Adjusting the Warner clutch. First make sure the Warner clutch is set to is start position, where the pal is placed on the counterpart. NOTE: Keep the clutch free of grease and oil, as this can be a cause of malfunction. Adjust the camshaft.