Assembly Of Second Stage - Sherwood Scuba maximus SRB5600 Assembly & Maintenance Manual

NOTE: If only the lever
from under the screw
18. Hold the orifice housing
turn the orifice clockwise until it comes out of the orifice housing. Remove and discard the
o-rings on the orifice
19. Before removing the exhaust valve
top, bottom, left and right sides. If it fails to snap back quickly, and does not lie perfectly flat
against the case, the valve should be replaced. If it does snap back satisfactorily, remove it and
inspect the sealing edges. If they appear smooth, and the locking tab on the nipple is good, the
valve can be reused.
20. Rinse all plastic and silicone parts in clean fresh water, and then blow the parts dry with
compressed air to remove any sand and dust particles.
21. If necessary, clean all metal parts of the second stage in an ultrasonic cleaner or cleaning
solution. Remove the o-rings before cleaning any metal parts; most cleaning solutions are
damaging to the o-ring material. See Section 6.3 for recommendations on cleaning solutions.
NOTE: If you use an ultrasonic cleaner to clean the second stage adjustable orifice
container to prevent the orifice from vibrating against other metal parts which could damage the orifice seal.
22. Inspect the case
housing and the lever support clamp down. Replace the case if any cracks are found.
23. Inspect the sealing surface on the orifice
scratches, or corrosion. Corrosion or minor scratches can be polished out using a fine-grit
rubberized polishing stick or a clean new pencil eraser. Do not apply heavy pressure when
rotating the polishing stick. Stop polishing immediately after the corrosion or scratch
disappears. An orifice will not be accepted for warranty replacement simply because it is dirty
or corroded. The technician must clean the orifice sealing surface at every service interval.
24. Blow all dust and debris out of the orifice housing with clean compressed air.
NOTE: Prior to this point, you should have cleaned and inspected all parts, following proper servicing
procedures. Do not continue until this has been done.
5.3

ASSEMBLY OF SECOND STAGE

1. Install the exhaust valve
outside of the case. Reach inside the case and pull the nipple firmly with the fingers until you
hear or feel it "click" into place. Inspect the exhaust valve to see that it is properly seated.
2. Install the lever support
in the Case.
3. Lubricate and install new o-rings
the orifice back into the orifice housing
orifice counter-clockwise fully, until it stops.
is to be replaced, do not totally remove the screw. You can remove the lever
36
when the screw is almost all the way out.
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13 in one hand. Temporarily install the adjuster knob
14 15
& , and the orifice housing
26 from the case, bend it over as far as it will go from the
for any cracks. Look particularly closely at the area where the orifice
20
16
14 into the case by inserting the nipples into the small holes from the
and assembly into the case, setting it firmly between the guide ribs
32
14
& 15 from the annual service kit onto the orifice
13
11 & 12 .
(where the poppet insert seals) for any nicks,
using the fingertip. Use the adjustor knob to turn the
14
7
and use it to
, use a plastic
16
. Install
16