Aqua Lung CORE Service-Handbuch - Seite 12

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SYMPTOM

Leak or free flow at 2

stage

Insufficient purge flow or work of

breathing too high

Water leak

Service Manual Core 2

Rev. 05/2015

Table 1. Troubleshooting Guide

POSSIBLE CAUSE

1. The MP is too high

2. The rubber seating (129638) is worn or

damaged

3. The valve seat (AP2033) is not correctly

adjusted

4. The lever (129178) is bent

5. The sealing face of the valve seat

(AP2033) is damaged

6. The spring (AP2021) is damaged

1. The MP is too low

2. The valve seat (AP2033) is not correctly

adjusted, the lever adjustment is too low

3. The MP hose is obstructed

4. The lever (129178) is bent

1. There is an hole in the mouthpiece

(123697 or 123698)

2. The diaphragm (129150) is damaged

3. The exhaust valve (129174) is damaged

4. The Venturi lever O-ring (AP1438) is

dirty, worn or damaged

5. The diaphragm is not correctly fitted

between the case (129931 or 129932) and

the washer (129133)

6. The case (129931 or 129932) is

damaged

7. The valve spindle O-ring (124706) is

damaged

stage

APPENDIX

Service Manual Core 2

TREATMENT

1. Refer to First stage Troubleshooting

Guide

2. Replace the rubber seating

3. Readjust the valve seat

4. Replace the lever

5. Replace the valve seat

6. Replace the spring

1. Refer to First stage Troubleshooting

Guide

2. Readjust the lever and the valve

seat

3. Clean or replace the hose

4. Replace the lever

1. Replace the mouthpiece

6. Replace the diaphragm

7. Replace the exhaust valve

4. Replace the O-ring

5. Disassemble the front cover and refit

the assembly correctly

6. Check the sealing face of the

exhaust valve. Replace the case.

7. Replace the O-ring

stage