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CYKLON REPAIR INSTRUCTIONS FIRST STAGE REDUCING VALVE 3720 3720 10 ANTI-FREEZE CAP DIFFERENT CONNECTIONS YOKE G 5/8’’ SAFETY VALVE 1.0:E83...
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CYKLON FIRST STAGE VALVE 3720 Secondary side: 1. Disconnect the low pressure hose from the first stage valve using a 13 mm box spanner. 2. Remove the o-ring (30) from the low pressure hose with the o- ring remover. First stage valve with G 5/8’’: 3.
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CYKLON FIRST STAGE VALVE 3720 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).
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CYKLON FIRST STAGE VALVE 3720 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.
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CYKLON FIRST STAGE VALVE 3720 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. 2. Remove the locking screw (35) with a 4mm Allen wrench.
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CYKLON FIRST STAGE VALVE, 3720 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.
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CYKLON FIRST STAGE VALVE 3720 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 Allen wrench and tighten up by hand.
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CYKLON FIRST STAGE VALVE 3720 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. 4. Install the o-ring (13) on the valve seat (14).
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CYKLON FIRST STAGE VALVE 3720 Assembly: 1. Place on the assembly fixture B: - valve centre, lower (10) - o-ring (1 1),lubricate - valve seat (14) with o-ring downwards - valve piston (15),lubricate, and pressure spring (16) on valve piston.
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CYKLON FIRST STAGE VALVE 3720 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.
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CYKLON FIRST STAGE VALVE 3720 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.