Page 15
(Every 24,000 hrs or 4 Years)
6.2 SERVICE ‘B’ INSTRUCTIONS
REPLACING INLET CONTROL AND EXHAUST VALVES (NDL-100 TO NDL-130)
Figure 1.
O RING
SILENCER BOX
VALVE DIAPHRAGM
EXHAUST VALVE
Figure 2.
SILENCER
FIXING
NUT
M5 SOCKET HEAD
SCREWS
1. Ensure the dryer is shutdown
and fully depressurised before
attempting any maintenance work.
(See page 7)
2. Unscrew the silencer fixing nut
using a 20mm pin spanner and
remove the O ring to release the
silencer box from the assembly.
(See Figure 1)
3. Remove the 8x M5 socket head
screws and the 8x spring washers
and remove the exhaust valve
bodies and diaphragms from the
inlet (bottom) manifold.
(See Figure 2)
4. Replace the 2x diaphragms and
2x exhaust valves from the service
kit.
5.Replace the 8x M5 socket head
screws and spring washers and
tighten at a torque setting of 6Nm.
Reattach the 2x solenoid valves
and 2x plugs. (See Figure 2)
NOTE:
Refer to the page 20
and follow the correct tightening
sequence.
Summary of Contents for D-Series
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