NANO D-Series, Maintenance Service Manual

Page: 8 / 26

Page 8
5. SERVICE ‘A’ INSTRUCTIONS
REPLACING DESICCANT CARTRIDGES NDL-060 to NDL-120
(Every 12,000 hrs or 24 months)
Please refer to figure 1
1. Ensure the dryer is shutdown and
fully depressurised before attempting any
maintenance work. (See page 7)
2. Remove the 4x M5 screws as shown to
remove the dryer top cover.
3. Remove the 8x M12 cap head screws and
8x washers to remove the top manifold from
the dryer column.
4. Discard the gasket seal.
5. Lift the wire handle and remove the
cartridge from the dryer column.
(See figure 2).
6. Check and clean the top manifold and dryer
column as required, paying particular attention
to the gasket sealing faces.
7. Remove the new cartridges and gasket
seal from the service kit provided.
8. Insert 2x new desiccant cartridges and
press them down until they stop and the
cartridge is below the top surface of the dryer
column.
9. Insert the new gasket seal placing it into the
gasket groove in the top manifold ensuring it
is fully retained.
10. Ensure both handles are folded flat.
11. Replace the top manifold and secure with
the 8x M12 cap head screws tightening to a
torque setting of 80Nm.
NOTE : Refer to the page 20 and follow the
correct tightening sequence.
12. The seal between the dryer column and
top manifold should be checked for leaks prior
to fitting the top cover and operating the dryer
13. Replace the dryer top cover and secure
with the 4x M5 screws. These screws should
be hand tightened only or tightened to a
torque setting of less than 1Nm.
If service A is complete reset the dryer, refer
to page 19.
Care must be taken when removing the
desiccant cartridges not to damage the top face
of the dryer column. This is a sealing face!
(Sealing face shown as the shaded area)
Figure 2.
Figure 1.
GASKET SEAL
TOP MANIFOLD
8x M12 CAP
HEAD SCREWS
TOP COVER
DESICCANT CARTRIDGES
4x M5 SCREWS