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POSEIDON 3755 Repair Instructions

Second stage demand valve

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REPAIR INSTRUCTIONS SECOND STAGE DEMAND VALVE

3755 - Second stage

COVER FOR VALVE

HOUSING WITH

PURGE BUTTON

DIFFUSER

SWIVEL

LOW PRESSURE HOSE

LOW PRESSURE VALVE

DIFFUSER

TRITON

1.0:E97

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Summary of Contents for POSEIDON 3755

Page 1 TRITON REPAIR INSTRUCTIONS SECOND STAGE DEMAND VALVE 3755 - Second stage LOW PRESSURE VALVE COVER FOR VALVE HOUSING WITH DIFFUSER PURGE BUTTON DIFFUSER SWIVEL LOW PRESSURE HOSE 1.0:E97...
Page 2 TRITON SECOND STAGE 3755 Removal: 1. Disconnect the low pressure hose from the second stage with a 15 mm open wrench. Remove the o-ring (14) with an o-ring remover. Remove the securing clip (13). 2. Remove the swivel (12). 3. Remove the o-rings (11) with an o-ring remover.
Page 3 TRITON SECOND STAGE 3755 Removal: 1. Cut off the locking strap (9) with cutting pliers. Remove the mouthpiece (10). 2. Remove the cover (6) 3. Remove the diaphragm (1) with an o-ring remover. Make sure that the sealing surfaces are not damaged.
Page 4 TRITON Removal: Remove the servo valve (2) with removal tool (no 3601) see fig. Be careful so that the holders do not break. 3601 1. Press down the removal tool carefully so that the holders bend inwards and the serve valve “pops up”...
Page 5 TRITON SECOND STAGE VALVE 3755 When servicing the regulator the following parts should be replaced: (see chapter servicekit) Before assembly check the following: 1. Diaphragm (1) and exhaust valves (7). Check the sealing surface to see if it is even and uncracked.
Page 6 TRITON SECOND STAGE 3755 Assembly Installing o-rings in the swivel connection. Place the fixtures according to fig. 1. Install an o-ring in the fixture. Press down the o-ring in the track of the swivel with tool B. Remove the fixtures, press out the lower fixture with the o-ring remover through the hole in the bottom of the swivel.
Page 7 TRITON SECOND STAGE 3755 Assembly: 1. Lubricate the inside of the swivel (12) and press it on the second stage. 2. Press in the securing clip (13). Install the o-ring (14) on the low pressure hose. Lubricate the o- ring (14) and the thread at the swivel (12).
Page 8 TRITON 1. Install the cover (6). Put the lower part of the cover against the valve housing. Press it on. 2. Install the mouth piece (10) and the locking strap (9). Tighten and cut off locking strap with plastic band pliers. 3.