Sherwood Scuba MAXIMUS SRB3600 regulator Spécifications télécharger pdf (Page 13)

14. Using the regulator support handle (p/n TL113) in one of the LP pressure ports of the body and

a 15" adjustable wrench, tighten the yoke nut snugly (see Photo #1).

15. Install the handwheel and the dust cap onto the yoke.

16. If the first stage has a SAA-5300 DIN adapter installed instead of a standard yoke, see the

installation instructions given in Sherwood Technical Bulletin #104 for overhaul and installation

instructions of the DIN adapter.

4.4 TESTING OF FIRST STAGE

A. Before You Begin Testing

1. Install an intermediate pressure test gauge (p/n TL119) into one of the low pressure ports of the

first stage. Plug any open outlet ports with suitable port plugs.

2. Install the first stage onto a tank valve, and introduce 2700 - 3500 psig (186-240 bar) to the

inlet of the regulator. Flow air through the regulator by pushing the purge button on the second

stage several times to get all parts properly seated.

B. Dry Air Bleed Flow Test

1. Submerge the first stage under several inches of water.

2. A small stream of bubbles should be escaping from the one-way bleed valve on the first stage

and nowhere else on the body (see Fig. 1). The number and size of the bubbles may vary from

regulator to regulator. To check this, use the following steps:

a. Invert a small (50 cc capacity) graduated cylinder (p/n TL110) filled with water over the

underwater flow of bubbles (see Fig. 1). The air entering the cylinder will gradually empty

some of the water out of the cylinder.

After one minute, remove the graduated cylinder from the air flow and raise the cylinder to

the surface so that air/water dividing line inside the cylinder matches the water level outside

the cylinder. The measurement at this point should be between 13 and 27 cc for the old

style flow control element and 20-30 cc for the new laser drilled flow control element.

c. If the reading is significantly higher than 30cc check the O-rings and sealing surfacesmated

to the piston. If the reading is below 13cc, check the flow control element to determine if

it has been clogged by grease or other foreign matter. If it is clogged, it must be replaced

(old style sintered stainless steel ) or cleaned (new laser drilled element).

NOTE

: For safety, always test the first stage regulator with at least one second stage installed.The

demand valve on the second stage acts as a relief valve in the event of a malfunction.

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Sherwood Scuba MAXIMUS SRB3600 regulator Spécifications Page 13