Aqua Lung SEA MK Troubleshooting Guide download pdf (Page 10)

SEA LV2 Technical Maintenance Manual

21. Remove the o-rings (31 & 33) from the piston and dis-

card. Insert the pin of the seat extraction tool (p/n 109437)

22. Use a cylinder vise or place a rubber strap wrench

onto the cylinder (38) to hold it secure while it is turned in a

clockwise direction. While holding the cylinder secure with

the strap wrench, unscrew the rst stage body (36) from the

cylinder using a 1 3/16" crowfoot & ex handle drive.

CAUTION: Ensure that the crowfoot is not over the

hole for the bonnet (13) as damage to the bonnet

opening could result.

23. Remove and discard the o-ring (37) from the cylinder

threads.

Second Stage Disassembly

1. Using small wire cutters, carefully snip the plastic mouth-

piece clamp (55) and remove the mouthpiece (66) from the

box bottom (63). Inspect the mouthpiece to ensure it is free

of any tears or cuts that may cause leakage of water into the

second stage or other discomfort. Discard the mouthpiece or

set it aside to be reused, depending on its condition.

2. Using your ngers, unscrew the front cover (59) from the

box bottom (63). Using the Micra Retaining Ring Tool

(p/n 100188), unscrew the retaining ring (60).

3. Lift out the purge cover (61) and diaphragm (43). Inspect

the diaphragm for any tears or pin holes by holding it up to a

light and gently stretching around the perimeter.

4. While depressing the lever (45), unscrew the inlet tting

(52) using a 3/4" wrench or socket. Remove and discard the

inlet tting o-ring (14).

inlet tting

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Aqua Lung SEA MK Troubleshooting Guide Page 10