Junior II WT
Page 14
1st ed. Rev 0 Chg 3
BAUER
COMPRESSORS
• Thirty minutes after restarting the compressor unit, stop the unit, let it cool to ambient temperature
and retighten the valve studs and cap nuts. Otherwise valves could work loose due to the setting of the
gaskets.
• After finishing all maintenance work on the valves, turn the compressor by hand using the flywheel
and check that all items have been correctly installed.
• Remove and check the valves every 1,000 operating hours.
• Replace the valves every 2,000 operating hours to avoid fatigue failure
3.3.4
Changing the 1st Stage Valves
• Loosen the two cap nuts from tube connectors and remove after-cooler.
• Remove four valve head screws (5) from valve head (1). Remove valve head.
• Remove gasket (2) and plate valve (3).
• When reinstalling the plate valve, check that the mark “S” is facing upwards and towards the inlet
filter side. The cross bar of the gasket (2) provides a seal between the inlet and pressure opening of
the plate valve.
Figure 3-6
1st Stage Valve Head
1. Valve Head
2. Gasket
3. Plate Valve
4. O-ring
5. Valve Head
Screw
6. Washer
7. Hex Nut
1
2
3
4
5
6
7
