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Check Every 560 Hours (Once a Month)
6.
Discharge the air.
Close the main air valve.
Pull up the regulator knob, and turn it to the left
until it stops.
Make sure the exhaust sound disappears and
the gauge shows 0 MPa.
Lock the valve lever. A worker should carry the
key. (DU/DHU only)
7.
Open the safety cover.
8.
Lower the nozzle holder.
9.
Clean the bearing and groove by
using a cotton bud.
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444C-E-MMA01-A08-03
Nozzle holder
Groove
Valve
Bearing
Cotton bud
444C-443P
444C-402P
444C-444P
1
2
3
4
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3