Kirby 37 appendix General, Side Block Assembly Removal

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Kirby Morgan 37 & 57

7.3 Side Block Assembly

7.3.1 General

The side block should be overhauled at least annually, or whenever components show signs of wear, damage or do not function smoothly or properly. Minimum replacement components during overhaul includes all O-rings. A repair kit is available for replacement parts (Part #525-311).

The side block does not require removal from the helmet each time an overhaul is being conducted providing inspection of the internal passages does not reveal contamination or excessive corrosion. How- ever, the side block should be completely removed at least every three years of active use to ensure fasteners are not corroded or frozen.

The side block assembly is held in place on the helmet shell by a stud, flat washer, lock washer, nut, and a machine screw. The screw does some securing but its main function is to prevent rotation of the side block. The stud also extends into the interior of the helmet shell far enough to secure the air train by means of the washer and nut.

The air train cup that fits over the stud is made of soft brass and cannot be used for a bearing surface to mount the side block. RTV silicone rubber compound is used to form a gas tight seal between the side block and the exterior of the helmet shell.

7.3.2Side Block Assembly Removal

Tools Required:

7/16,11/16, and 7/8 inch Open End Wrenches

11/16 and 7/8 inch Open End Wrench Attachment on Torque Wrench

1/4 inch Flat Blade Stubby Screwdriver

The bent tube assembly must be entirely removed be- fore removal of the side block assembly is started.

1)Completely unscrew the bent tube assembly nut (14) from the side block.

2)Using two wrenches, hold the nut at the regulator end of the bent tube assembly with the first wrench. With the other wrench, loosen the jam nut (100) by turning the wrench DOWN.

3)Unscrew the bent tube nut until it comes free, then pull the bent tube assembly straight out of the regula- tor inlet nipple.

4)The side block assembly is ready to be separated from the helmet shell at this time.

Loosening the bent tube from the side block.

7.3.3 Separating the Side Block Assembly from the Helmet Shell

Tools Required: Putty Knife

7/16 inch Open End Wrench

1/4 inch Flat Blade Stubby Screwdriver

1)Removal of the side block assembly requires re- moving the air train.

2)Remove the nut and washer that secure the air train, then the air train itself.

3)The stud nut is removed next, with the lock washer and flat washer.

Loosening the nut that holds the air train.

4) Next, the alignment screw is removed.

NOTE: The alignment screw is located in a recess in the fiberglass next to the stud. This recess is normally filled with RTV. The RTV must be scraped free to reveal the screw.

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© Copyright 1970-2008 Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 080508001

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Contents Introduction One Way ValveKirby Morgan 37 Tighten to 150 inch lbs Newton Meters with a torque wrench Correct assembly order of the one way valveGeneral Side Block AssemblySide Block Assembly Removal Separating the Side Block Assembly from the Helmet ShellThin putty knife helps to remove the side block Components of the Side Block & Air TrainAir Train Gasket To suffocation Could lead to drowningDiver cannot use the free flow system as Source of breathing air. This could leadDefogger Valve Disassembly of the Defogger ValveCleaning and Lubricating Clean all the metal parts to remove saltsReassembly of the Defogger Valve Side Block assembly and it’s associated partsRemove the valve stem Emergency Valve AssemblyReassembly of Emergency Valve Packing Knob Lock nut SpringValve Body Valve Stem Washer Packing nut Leak Testing the EGS Valve Bent Tube Assembly Removal of the Bent Tube AssemblyInspection of Bent Tube Assembly Kirby Morgan 37 Installation Bent Tube Assembly SuperFlow Demand Regulator General Regulator InformationTool Kit with pouch Remove the demand regulator clamp Screw the regulator adjustment knob out for removalReassembly of the SuperFlow 350 Regulator Adjustment System Shake out the spacer, spring set, and pistonInspect the washer and o-ring Regulator mount nut must be removed to remove the regulator SuperFlow 350 Demand Regulator Removal from HelmetKirby Morgan 37 Disassembly of the SuperFlow SuperFlow 350 regulator assemblyDemand Regulator Castle Wrench and inlet valve On the silicone sealant tube and Material Kirby Morgan 37 Inspection of SuperFlowDemand Regulator Parts Use silicone sealantPage Valve seat Adjustment end of the SuperFlow 350 regulator Install the retaining pin in the adjustment knobKirby Morgan 37 Test the response of the purge button Kirby Morgan 37 Tuning the SuperFlow 350 RegulatorUse the disk end of the Kmdsi wrench to bend the lever down Page Press the cover over the diaphragm Inspection of Oral/Nasal Oral/NasalOral Nasal General Information Oral/Nasal RemovalKirby Morgan 37 Oral/Nasal Replacement Quad-Valve Exhaust Assembly Quad-Valve Assembly RemovalExploded view of the Quad-Valve exhaust system Page SuperFlow Regulator Exhaust Valve Replacement Quad-Valve Assembly InstallationWhiskers must be aligned properly on the exhaust main body Water Dump Valve Removal Water Dump Valve ReplacementWater Dump Exhaust Body Water Dump Valve Body Removal101 Reinstalling the Quad-Valve Exhaust Assembly102 SuperFlow Stainless Balanced RegulatorKirby Morgan 37 Adjusting the SuperFlow Remove the bent tube and the bent tube adapter103 104 Bent tube adapter Exploded view of SuperFlow 450 regulator105 106 107 108 Install the o-ring in the bent tube adapterKirby Morgan 37 SuperFlow 450 Regulator Removal Be sure to remove and set aside the whisker spacers109 Kirby Morgan 37 SuperFlow 450 Disassembly SuperFlow 450 flex knob assembly110 Ring Details of the SuperFlow 450 main tube and associated parts111 Exhaust valve insert Retainer ring Kirby Morgan 37 AssemblySuperFlow 450 Regulator Regulator Body113 Install the inlet valve in the main tube114 Tighten the cover hand tight Make sure the lock clip fully engages the packing nut115 116 Kirby Morgan 37 SuperFlow 450 Regulator Installation117
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