5.28 Attaching Air Supply 21.92
An air supply with a MINIMUM of 85 PSI must be provided for proper operation of the
TSM-21 Pocket Machine.
1. From the operator’s position the air inlet is the 1/4” NPT fitting located on the back side.
See Fig 31.
2. Use proper thread sealant and install desired attachment method.
3. CASTLE recommends the use of a secondary filter method directly in line with the supply
at the machine.
4. Do not use lubricants or connect a lubricator to the machine.
Warning: Do not turn the machine on without air attached.
Fig 31
TSM-21 Diagnostic Manual Parker/Humphrey Solenoids