Sherwood Scuba MAXIMUS SRB3600 regulator Spécifications télécharger pdf (Page 23)

6.0 HELPFUL HINTS

6.1 TROUBLESHOOTING REGULATORS

POSSIBLE CAUSE RECOMMENDED ACTION

A. High Inhalation Effort at Depth:

1. Inlet filter clogged. Replace the filter.

2. No air flowing through the dry air bleed system. Check the flow rate coming out of the

one-way bleed valve . If no or low

air flow is detected, replace the flow

element assembly .

3. Air supply to first stage insufficient. Verify the supply air pressure. Make

sure the customer had the air valve

turned

all the way on during the dive.

4. Second stage improperly adjusted. Repeat Steps 1 through 6 in Section

5.4, Set-Up of Second Stage.

B. Free Flowing:

1. Intermediate pressure too high. Adjust intermediate pressure below

150 psi by removing shims .

2. Damaged or worn first stage piston seat. Replace piston seat .

3. Damaged or worn second stage poppet seat. Replace second stage poppet seat .

4. Nicked or corroded orifice sealing surfaces. Polish the orifice sealing surfaces in

both the first and second stages with a

pencil eraser or polishing stick. If

damage is too severe to polish out,

replace orifice or .

5. Second stage demand lever bent too high. Adjust or replace the lever.

6. Weak spring in second stage. Replace the spring.

7. First or second stage improperly adjusted. Refer to

Sections 4.4 and 5.4 of this

manual.

8. Parts in the second stage have been severely Allow the second stage to warm back

chilled due to repeated purging and have shrunk, up to room temperature. This chilling

allowing air to flow. will not occur in normal diving.

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Sherwood Scuba MAXIMUS SRB3600 regulator Spécifications Page 23