BOC Edwards A531-15-020 Instruction Manual - Page 9

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3.4

Remove the old liners

Refer to Figure 2 in the following procedure. An exploded view of the Disposable liners is
shown in Figure 3.
1. Undo and remove the eight thumbwheels (4) which secure the top-flange to the exhaust trap.
2. Remove the top-flange (21) and top-flange 'O' ring (20) from the trap.
3. Remove the outlet liner (2) from the trap outlet (1); note that you can slightly compress the
outlet liner to make it easier to remove.
4. Remove the outlet rubber gasket (3) from its position on top of the inner and outer liners.
5. Remove the outlet end-shield (5) from the trap.
6. Remove the inner liner (7) from the trap; note that you can slightly compress the liner to
make it easier to remove.
7. Remove the 10 outer liner segments (18) from the trap.
8. Remove the cold-finger end-cap (6) from the trap.
9. Remove the cold-finger liner (17) from the trap; note that you can slightly expand the liner to
make it easier to remove.
10. Remove the inlet liner (10) from the trap inlet elbow (11); note that you can slightly compress
the liner to make it easier to remove.
11. Undo and remove the eight M6 nuts and washers (12), and remove the inlet insulator (13)
and the inlet elbow (11).
12. Remove and dispose of the two 'O' rings (9).
13. Remove the inlet end-shield (16) from the trap; note that the end-shield has lifting-tabs
(Figure 3, item 10) to make it easier to remove.
14. Remove the inlet gasket (14) from the trap.
15. Dispose of the top-flange 'O' ring, the inlet and outlet liners, the inlet and outlet end-shields,
the inner and outer liners, the cold-finger liner, the cold-finger end-cap and the inlet and
outlet gaskets (refer to Section 5).
3.5

Clean the exhaust trap

The substances accumulated in the trap may be dangerous. Do not allow your skin or eyes
to come into contact with these substances. Do not inhale vapours from the trap or the
1. Use a suitable tool to remove any loose deposits from the body of the trap.
2. Inspect the body of the trap and the inlet flange for damage and corrosion. Do not use the
trap if there is excessive damage or corrosion.
8
WARNING
connecting pipelines.
Disposable Liners