Aqua Lung Kronos Service Manual download pdf (Page 12)

12 Kronos First Stage Service Manual

Table 1. Troubleshooting Guide

SYMPTOM POSSIBLE CAUSE TREATMENT

1. The HP seat (124624) is worn or

damaged.

1. Replace the HP seat.

2. The crown (127585) is damaged. 2. Replace the crown

Increase in MP

3. The O-ring (124704) is worn or

damaged.

3. Replace the O-ring

(likely to cause a second stage leak)

4. Groove on the spring block (127562)

damaged

4. Remplacer le barillet

5. O-ring (124612) is worn or damaged. 5. Replace the O-ring

6. O-ring groove on the crown on the body

is damaged

6. Replace the body

1. O-rings on the MP a and HP plugs are

worn, extruded or damaged.

1. Replace the O-ring(s)

2. The diaphragm(119159) is worn or

damaged.

2. Replace the diaphragm

External leak

3.The diaphragm (127579) is worn or

damaged.

3. Replace the diaphragm

4. The sealing face of the diaphragm is

damaged.

4. Replace the body

5. Dry chamber screw (127577) or (127583)

loose.

5. Tighten the dry chamber

6. Seat O-ring (820016) damaged 6. Replace the O-ring

7. Nose O-ring (473056) damaged 7. Replace the O-ring

8. Shutter screw seal (124703) damaged 8. Replace the O-ring

9. ACD seat seal(473057) damaged 9. Replace the O-ring

1. Cylinder valve not completely open

1. Open the valve, check the cylinder

pressure

2. Cylinder valve requires servicing 2. Try another cylinder

3. Filter (26) blocked 3. Replace the filter

Reduced airflow or significant

breathing resistance on complete

regulator.

4. The cylinder is empty 4. Charge the cylinder

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Aqua Lung Kronos Service Manual Page 12

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