General Instructions; General Conventions - Aqua Lung FIRST STAGE Service Manual

1. In order to carry out the procedures described in this manual correctly it is important that you follow the steps in the exact
order indicated. Read the manual through completely so that you become familiar with all the procedures, the special tools and
the replacement parts, before starting to disassemble the product. Keep this manual open near to you so that you can refer to
it step by step. Do not rely on your memory..
2. All servicing and repair procedures should be carried out in a workshop that is clean, well lit, easy to access and specially
fitted for the purpose.
3. The regulator body should never be directly held in the jaws of a vice. To hold the body, screw the tool 006230 into the HP port
and then grip the tool with the vice.
4. Once the regulator has been disassembled, the re-usable components should be separated from the components that need to
be replaced. Fragile items with seats or crowns with critical sealing surfaces should be separated and protected during
servicing in order to prevent any damage.
5. Use only spare parts from Aqualung service kits. Never replace an Aqualung part with one from another manufacturer, even if
it appears similar.
6. Never re-use regulator parts which should be replaced on the pretext that the regulator has seen little use since its
manufacture or since its last service.
7. When reassembling, check that the torque used conforms with that shown in Table 4, Torque. Some parts can be irretrievably
damaged if the acceptable torque is exceeded.
The conventions described below define the actions to be carried out when an instruction is given.
1. Unscrew: to unscrew a threaded part, turn it anti-clockwise.
2. Screw: to screw a threaded part, turn it clockwise.
3. Remove the O-ring: To remove an O-ring follow the method below, using the special tool provided for this purpose. Any tool
that could damage the O-ring should be avoided. In every case, replace the O-ring removed with a new one.
Press simultaneously on the
two sides of the O-ring in
order to form an 'eye'. .
Insert the special tool into this
eye to remove the O-ring.
4. The acronyms used:
LP: Low Pressure
MP: Medium Pressure
HP: High Pressure
5. Numbers in brackets indicate the part number of the component shown on the exploded view attached.
Service Manual 1st stage Legend
Rev. 12/2011

GENERAL INSTRUCTIONS

GENERAL CONVENTIONS

Service manual First stage Legend
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