Pneumatic Controller Maintenance

Valve Maintenance Schedule

The two solenoid driven air valves used in Xandex pneumatic controllers to drive the Pneumatic Shuttle and Ink Cartridge are identical. Valve one (V1) supplies air to the ink cartridge, and is also referred to as the Cartridge Valve. Valve two (V2) supplies air to the pneumatic shuttle and is also called the Shuttle Valve.

Xandex Motorized Z controllers contain a third valve (V3) that is identical to the Shuttle and Cartridge valves. The Motorized Z uses this valve to change the air pressure supplied to the cartridge valve when inking in small dot mode. In normal operation, the third valve (V3) in the Motorized Z controller will not need replacement for the life of the unit.

Preventive maintenance for Xandex pneumatic controllers requires replacement of just the Cartridge Valve, or replacement of both the Cartridge and Shuttle valves at the intervals specified in the table below.

Controller Model # Replace Interval
All Models Cartridge Valve

Continuous High Speed Use = 6 months

All other applications = Every 12 million cycles

All Models Cartridge Valve, Shuttle Valve and internal tubing as required Every 24 months

Two types of valve replacement sets are available from Xandex to facilitate controller preventive maintenance.

  • Cartridge Valve Sets, containing a single valve assembly, electrical connectors and replacement instructions. This set is used for the 12 million cycle controller preventive maintenance. For controllers with serial numbers less than 4000, order part number 370-0100. For controllers with serial numbers 4000 and higher, order part number 370-0105
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  • Dual Valve Sets containing two valve assemblies, electrical connectors, adequate tubing to replace all internal controller pneumatic routes in all Xandex pneumatic controllers and replacement instructions. Internal tubing can be damaged during dual valve replacement and this can result in leaking connections at the valve and coupling connections. Replacement tubing is provided so it can be replaced as required. This set is used for the 24 month controller preventive maintenance. For controllers with serial numbers less than 4000, order part number 370-0101. For controllers with serial numbers 4000 and higher, order part number 370-0106.

For more information or to order pneumatic controller PM kits, contact Xandex Customer Service at +1 (707) 763-7799, +1 (800) 767-9543 (toll free in the US), FAX (707) 763-2631; email:info@xandexsemi.com.