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Mistral Second Stage Technical Maintenance Manual

Part numbers in

BOLD ITALICS

are included in the service kit.

BOLD ITALICS

Second Stage

Key # .Part # Description

........ 125920

Mistral Second Stage

........ 900016

Overhaul Parts Kit, Entire Mistral

1 .......125929

Screw, caphead

2 .......125935

Exhalation box

3 .......129174

Exhaust valve

4 .......124509

Sealing ring

5 .......125705

Diaphragm

6 .......125937

Inhalation box

7 .......

125928

Locknut

8 .......

102510

Locknut

9 .......104129

Washer

10 .......125708

Lever

11 .......125931

Valve insert

12 .......

104134

Poppet bearing

13 .......104127

Spring

14 .......104122

Poppet

15 .......

106738

LP seat

16 .......100128

Crown oriﬁ ce

17 .......

820010

O-ring

18 .......

820015

O-ring

19 .......104106

Inlet ﬁ tting

N/S .......125958

Clamping Band "R" (w/nut & screw)

Содержание MISTRAL SECOND STAGE

Страница 1: ...Authorized Technician TECHNICAL MAINTENANCE MANUAL MISTRAL SECOND STAGE...

Страница 2: ...Y PROCEDURE 6 FINAL TESTING PROCEDURES 10 Second Stage Opening Effort Test 10 Table 1 Troubleshooting Guide 11 Table 2 List of Tools and Service Kits 12 Table 3 Recommended Cleaners and Lubricants 13...

Страница 3: ...the hose crimps If a regulator fails item 1 2 3 or 4 the entire regulator should be overhauled If a regulator fails 4 5 6 or 7 it will be up to the technician s discretion whether or not a full overha...

Страница 4: ...the surface is clean and unscratched It should be exible and have a clean edge If it is in good condition it is not necessary to replace it If there are any signs of deterioration it should be replac...

Страница 5: ...condition of the lever 10 and the spring 13 to ensure it is not bent corroded or other wise damaged If any signs of damage are found discard the part and do not reuse 12 Place the handle of the seat e...

Страница 6: ...amage to the sealing edge 17 Remove the o rings from the crown and the inlet tting THIS ENDS DISASSEMBLY Before starting reassembly perform parts cleaning and lubrication in accordance with Procedure...

Страница 7: ...er the sealing edge of the crown 7 Place the poppet bearing 12 over the pin of the extraction tool with the square feature facing up Guide the pin of the tool into the open end of the valve body 11 an...

Страница 8: ...ew in the inlet tting snug by hand while pressing the lever down 14 Using a torque wrench and a 3 4 19mm crows foot torque the inlet tting 19 to 85 in lbs 15 Fit new lubricated o rings to the MP hose...

Страница 9: ...ever touching the tool there should be no leaks Once the adjustment is completed turn off the air supply and purge the regulator 19 Install the sealing ring 4 onto the diaphragm 5 and place the assemb...

Страница 10: ...b shut and then slowly reopen while watching both the magnahelic gauge and the medium pressure gauge a If the opening effort is too low disassemble the second stage to give access to the lever disasse...

Страница 11: ...pring 12 is damaged 7 Replace the spring Breathing effort is too high 1 MP is too high 1 Readjust the lever and the crown 2 The lever 9 is adjusted too low 2 Readjust the lever and the crown 3 The MP...

Страница 12: ...ing bands 944022 O ring removal and installation N A 3mm Allen Keys Assemble disassemble casing N A Cleaning inside of corrugated hoses N A Removing panduit clamps 900016 Service Kit MISTRAL Crown and...

Страница 13: ...r reusable stainless steel and brass parts Household grade Liquid dishwashing detergent diluted with warm water Degreaser for brass and stainless steel parts general cleaning solution for plastic and...

Страница 14: ...e stubborn deposits household white distilled vinegar acetic acid in an ultrasonic cleaner will work well DO NOT place plastic rubber silicone or anodized aluminum parts in vinegar 3 Remove parts from...

Страница 15: ...CRIPTION KEY ITEM TORQUE 104106 Inlet tting 19 85 in lbs Table 5 Checking Speci cations TEST CONDITION SPECIFICATIONS Leak Test Inlet 2500 3000 100 psig No leaks allowed Opening Effort Inlet 2500 3000...

Страница 16: ...16 Maintenance Notes...

Страница 17: ...900016 Overhaul Parts Kit Entire Mistral 1 125929 Screw caphead 2 125935 Exhalation box 3 129174 Exhaust valve 4 124509 Sealing ring 5 125705 Diaphragm 6 125937 Inhalation box 7 7 7 125928 Locknut 8 8...

Страница 18: ...Authorized Technician TECHNICAL MAINTENANCE MANUAL MISTRAL SECOND STAGE Aqua Lung America 2340 Cousteau Court Vista CA 92081 760 597 5000 www aqualung com Rev 2 2006 Aqua Lung USA Aqua Lung USA...

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