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POSEIDON 3880 Repair Instructions

First stage reducing valve

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TRITON
REPAIR INSTRUCTIONS FIRST STAGE REDUCING VALVE
3880 - First stage G 5/8"
3880-10 - First stage YOKE
ANTI-FREEZE CAP
DIFFERENT CONNECTIONS
YOKE
G 5/8''
SAFETY VALVE
1.0:E105

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Summary of Contents for POSEIDON 3880

  • Page 1 TRITON REPAIR INSTRUCTIONS FIRST STAGE REDUCING VALVE 3880 - First stage G 5/8” 3880-10 - First stage YOKE ANTI-FREEZE CAP DIFFERENT CONNECTIONS YOKE G 5/8’’ SAFETY VALVE 1.0:E105...
  • Page 2 TRITON FIRST STAGE VALVE 3880, 3880 10 Secondary side: 1. Disconnect the low pressure hose from the first stage valve using a 13 mm open end wrench. 2. Remove the o-ring (30) from the low pressure hose with the o- ring remover.
  • Page 3 TRITON FIRST STAGE VALVE 3880, 3880 10 Removal: 1. Remove the pressure adjusting screw (1) with a 6 mm Allen wrench and remove the spring (2 and 3). 2. Remove the cover (4) using a 27 mm crowsfoot and the upper diaphragm center (5).
  • Page 4 TRITON FIRST STAGE VALVE 3880, 3880 10 Removal: 1. Remove the valve centre, upper (6) and the diaphragm (7). 2. Remove the diaphragm centre, lower (8) and the valve needle (9). 3. Remove the valve centre, lower (10) and the o-ring (11) with an o- ring remover.
  • Page 5 TRITON FIRST STAGE VALVE 3880, 3880 10 Removal: 1. Remove the blind screw (29 and 31) with a 5 mm Allen wrench. Remove the o-rings (30 and 32) with an o-ring remover. Make sure the sealing surfaces are not damaged.
  • Page 6 TRITON FIRST STAGE VALVE, 3880, 3880 10 When servicing the regulator the following parts should be replaced: (see chapter Servicekit) 1. All o-rings 2. Diaphragm 3. Cup filter 4. Valve seat 5. Washer 6. Valve sealing Checking: Check the following parts to make sure the sealing surfaces are undamaged.
  • Page 7 TRITON FIRST STAGE VALVE 3880, 3880 10 Assembly: 1. Install the o-rings(30 and 32) on the blind screws (29 and 31). Lubricate the outlets. 2. Screw the blind screws in the LP-HP outlets. Use a 5 mm hexagon spanner and tighten up by hand.
  • Page 8 TRITON FIRST STAGE VALVE 3880, 3880 10 Assembly: 1. Lubricate the valve housing (20). 2. Place on the assembly drift A: -washer, steel (17) -O-ring (18) -washer, teflon (19) 3. Install the valve housing. Lubricate the washers and the o-ring.
  • Page 9 TRITON FIRST STAGE VALVE 3880, 3880 10 Assembly: 1. Place on the assembly fixture B: - valve centre, lower (10) - o-ring (11),lubricate - valve seat (14) with o-ring downwards - valve piston (15),lubricate, and pressure spring (16) on valve piston.
  • Page 10 TRITON FIRST STAGE VALVE 3880, 3880 10 Assembly: 1. Install the diaphragm centre, upper (5) in the valve housing (20). 2. Grease the thread on the cover (4) and tighten up by hand. 3. Check to make sure that the parts are correctly installed by pressing at the valve centre.
  • Page 11 TRITON FIRST STAGE VALVE 3880, 3880 10 Assembly: 1. Place the valve housing (20) in a fixture. 2. Tighten the cover for valve housing with a torque wrench (30 Nm) and an open ended insert tool 27 mm. 3. Tighten the connection with a torque wrench (30 Nm) and holder insert tool/ bits.

This manual is also suitable for:

3880-10