8–10 Test Your Clutch/Brake
Publication
65566.5.1 - October 1996
Continuous Mode with Strokeandahalf
1. Place the mode selector switch in continuous mode.
2. Press and hold Run buttons for 1-1/2 strokes before releasing them.
3. Observe that the press continues to cycle.
4. Press the Stop-on-top button.
5. Observe that the press completes the cycle and stops on top.
6. Attempt to start the press, but hold Run buttons
for less than 1-1/2 strokes.
7. Observe that the press starts and then stops
when you release Run buttons.
If You Release Run Buttons the Press
in first or second downstroke stops immediately
in first upstroke stops at the top
8. Bring the press to top by pressing Run buttons, and release in upstroke.
9. Repeat steps 3 through 6.
This section tests the following switches in the clutch/brake control system:
• air pressure
• main motor forward
• motion detector
• chain break
Air Pressure Switch
1. Remove the air pressure switch input from chassis A:
wire # AI:002/15
module group 2
terminal 33
2. Place the mode selector switch in single-stroke mode.
3. Attempt to start the press. Observe that it will not start and that
fault codes 39 and 119 are indicated.
Switch Tests
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