CASTLE TSM-21 - Clamp Solenoid Check 21.11

5.3 Clamp
Solenoid Check 21.11
The Clamp Solenoid provides full air pressure to the Clamp. If the Clamp Solenoid has
failed open the clamp will come down as soon as air is attached to the machine,
without the power being turned on. If the clamp fails to come down the Clamp
Solenoid may be stuck closed or clogged.
5.3.1 Troubleshooting Steps:
1. Connect the shop air supply to the machine.
2. If the clamp automatically extends, then the Clamp Solenoid is stuck open.
3. If the clamp does not extend, lift the work top of the machine Locate the manual
overide button on the clamp solenoid. See Fig 4a and Fig 4b
Fig 4a
Castle Inc
TSM-21 Diagnostic Manual Parker/Humphrey Solenoids
Page 21 of 67