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XS Scuba MultiMax Breathable Inflator Service Manual
Pre-Test and Inspection Prior to Disassembly
It is good practice to inspect the MultiMax prior to disassembly and to document your findings. This will help
you identify any problems so you can be sure that these problems get remedied during service. You can use the
following checklist for items to document.
1.
Characterize the overall condition of the MultiMax. Is it “like new” or is it scratched, nicked or heavily corroded?
2.
Observe the condition of the braided hose where it exits the crimped ferrules. If the braid is pulling out of the
crimps or if the fibers are abraded, document and plan on replacing it.
3.
If the MultiMax is attached to a regulator first stage, attach an intermediate pressure gauge to the first stage and
record the medium or interstage pressure. Record the value.
4.
Pressurize the MultiMax and submerge in a tub of water. Are there any leaks? If so, document where the leaks
are coming from.
5.
Purge the MultiMax. Is the purge strong or weak? Is there free flow or leaking after purging?
6.
Attach to magnehelic or conduct a subjective breathing evaluation to evaluate the opening effort. Document
your findings.
7.
Operate the power inflation button. Does it provide a nice, strong inflation? Does it get stuck or leak?
8.
Operate the oral inflation button. Does it seal off the exhaust valve, routing your exhalation out the corrugated
hose connection? Does it get stuck or leak?
Required Tool List
Part #
Description
Application
TL111
O-ring pick
Removing o-rings
n/a
Small Flat Head Screwdriver
Cone seat (11)
n/a
Medium Flat Head Screwdriver
Purge cover
retainer ring (42)
n/a
Coin (preferably a U.S. nickel)
Threaded cap (9)
n/a
90° pliers or circlip pliers
Exhaust cover (15) and
exhaust retainer (17)
TL136
Multi-Purpose Tool
Extract cable retaining
pin (5)
n/a
Pliers wrapped with tape
Install C-clip (7)
n/a
5.5 mm socket or nut driver
Nyloc nuts (19) x2
n/a
Small crescent wrench
Valve housing (35)
n/a
13 mm open-end wrench
Inlet stem (28)
TL138
MultiMax Valve Assembly Tool
Assemble breathing valve
