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2. iNTRODuCTiON
Product upgrades
Regulators with serial numbers less than 310001 are subject to a mandatory update programme. To obtain updated replacement
parts, order the kit 4826 and submit to Poseidon the serial number of the regulator by sending an email to service@poseidon.
com with the serialnumber and date of service clearly marked.
Regulators fulfilling this criteria shall have the following parts replaced on its first service:
•
4560 replaced by 4760 Seat holder. Seats on regulators numbered after 310001 are
different and will not fit older seat holders.
•
4577 replaced by 4777 Lower pin-guide. The part has been changed to withstand a
greater torque.
•
4562 replaced by 4762 Upper centre piece. The part has been changed to correspond
to the change of 4577
•
4581 Washer. The part has been changed to ease assembly through a more precise fit.
•
0015-012 (4423) O-ring
•
4563 Pin bushing 1.stage Xstream
Information about Xstream Upgrade kit 4826
4760 Seat holder and 4581 Washer are not critical parts to replace, however old seat holders will not fit new seats and is therefore
included in the Update kit Xstream at a special price. 4777 Lower pin-guide and 4762 Upper centre piece should be replaced
and is therefore included in the kit at no cost.
Information about Xstream 1st stage covers.
During 2006, we began manufacturing Xstream DEEP, DEEP90, DURATION, DURATION90 and DECO 1st stages with chrome
colored 1st stage covers with an adjustment screw. Starting january 2007, all Xstream 1st stages, regardless of model/version,
will have a chrome colored 1st stage cover with an adjustment screw.
Information about Xstream Upgrade to cover with adjustment screw.
Any Xstream 1st stages that don't have a cover with an adjustment screw should be upgraded with a cover that has an
adjustment screw. This upgrade is not mandatory but recommended.
The upgrade is made using the "Xstream Adjustable kit" (4767-KIT) that contains the following parts:
•
1 x 4767-CE Xstream cover
•
1 x 4798-CH Adjustment screw
•
1 x 4763 Adjustment spring
•
1 x 4764 Seat spring
All these parts must be replaced when upgrading the 1st stage!
Recommendations
For regulators with serial numbers less than 310001 we recommend to offer the customer to replace the old type valve housing
nut to the improved version with article number 4547. This will significantly reduce the inhalation effort. However if the customer
choses to keep his old valve housing nut it is perfectly safe to do so.
EN 144-3
Xstream Deco, Xstream Duration and Xstream Duration90 are available also in EN 144-3 configurations, i.e., regulators which
comply with the new EN 144-3 standard. See page 3 for correct article numbers.
Older Xstream models can be upgraded to comply with the same standard using an EN 144-3 upgrade kit. See Spare Parts lists
on page 13 for details.
Article number on o-rings
In this revision of the service manual, all o-ring article number have been updated to match the current article number system
used by Poseidon. A conversion list between the old and new o-ring article numbers can be found on page 14.
Nitrox ready (EAN40)
Xstream Deep regulators with serial number 1500001 and later are Nitrox ready from the manufacturer. A special EAN40 ser-
vice kit for the Xstream Deep 1st stage (article number 0009-016) and a EAN40 service kit for the Xstream Deep / Jetstream
2nd stage (article number 0009-017) has been introduced.
5
SERviCE maNual
- xSTREam
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