apeks xtx 2nd stage regulator. please turn off the cell phones
TRANSCRIPT
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©2006 Aqua Lung International, Inc
Apeks XTX Service Program
Features• Pneumatically Balanced Valve Design
– Ratcheting, indexable venturi control
and user adjustment knob (200,100 & 50)
• Diver Changeable Exhaust (DCE)– Allows diver to change between a large tee for bubble dispersion
and a small tee for compactness
• Left/Right Hose Reversibility– Can be configured for left or right hand use
• Suitable For Coldwater Use– Can be used in water temps below <50F (Except XTX20)
Remove Pin & Adjustment Knob
• Turn in adjustment knob – Pin should fall out
• Remove adjustment knob
Remove Crown
• Carefully push out crown
• Use a medium bladed screwdriver– Loosen crown 6-7 turns to
disengage threads
– Use seat extraction tool (p/n 109437)
Remove Exhaust Tee
• Push on button to disengage exhaust tee
• Slide left and right exhaust tee away from case
Remove Exhaust Rib (optional)
• Remove if damaged
– Lift up on rib to remove
– Only on large exhaust tee
Cleaning & Lubrication Procedures
Click here to skip past Cleaning & Lubrication Procedures and go straight to Reassembly
Cleaning & Lubrication
• Brass and Stainless Steel Parts
– Pre-clean in warm soapy water; nylon bristle brush
– Ultrasonically clean with soapy water; vinegar OK on tough corrosion
– Rinse in fresh water; use distilled water if tap water is “hard”
– Blow dry with LP hydrocarbon free gas (for EAN use)
Cleaning & Lubrication
• Aluminum, Plastic & Rubber Parts
– Soak in warm, soapy water
– Use soft nylon bristle brush to remove deposits
– Rinse with fresh water
– Blow dry with LP hydrocarbon free gas (for EAN use)
CAUTION: DO NOT soak plastic parts in acidic solutions !
Cleaning & Lubrication
• Hoses
– Soak hose ends only
– Do not allow solution to enter hose
– Rinse with fresh water
– Dry with hose ends hanging down
– Blow out hose before installing
Cleaning & Lubrication
• Lubrication
– Christo-lube MCG 111
– Light film only Rinse with fresh water
– Remove visible excess
– If regulator will be used with EAN, you should wear powderless, latex gloves (or equivalent) when lubricating and handling o-rings
Install Exhaust Valve (if removed)
• Make sure barb pulls completely thru hole
• Trim exhaust barb
– Leave 5mm
Install Spindle Collar
• Square hole on spindle collar faces threaded end of valve spindle
• Use reversible circlip pliers– Spread collar & place
onto valve spindle
Square hole
Rotate Spindle Collar• With lever to the right
& upward
– Rotate spindle collar for right hand use
– Opening on valve body should be clear
Assemble Shuttle Valve
• Push spring onto counter balance chamber
• Insert shuttle valve into CB chamber
Install Adjustment Screw• 5mm hex key
• Turn in 6-additional revolutions
– Screw in until head of adj. screw is flush with end of knob
Install Ring On Venturi
• Slide ring onto venturi lever
• Align arrow on ring to “RIGHT” mark on venturi
Install Ring On Venturi
• Install new O-ring
• Pull ring firmly to install
– Ring will audibly click into place
Install Valve Spindle
• Hold lever down
– Slide in valve spindle assembly
• Do not allow lever to spring back up quickly
Torque Heat Exchanger
• Use a torque wrench & 11/16” crow foot – Torque the
heat exchanger to 45 in/lbs
– Make sure lever is straight
Install Crown
• Install new O-ring
• Use blunt end of seat tool
– Press crown into valve spindle until it stops
Adjust Crown
• Use a medium bladed screwdriver
– Turn crown in until lever drops ¼ inch
– Back crown out until lever is even with the case rim
Replace Purge Button
• Turn purge button over and push into case cover
• Set spring onto purge button
Install Case Cover
• Use AT20 tool
– Confirm the purge button is properly aligned
– Tighten cover until it stops
Final Testing
• Attach Inline tool (p/n:100190) onto second stage
– Use a properly adjusted first stage or test bench, slowly pressurize to 3000 psi
Final Testing• Use AT20 tool
– Push “NO GAS FLOW” side of tool into purge button until it stops
– There should be no audible flow of air
– If there is airflow, use inline tool and turn crown clockwise 1/16 turn
– Repeat first step
Final Testing• Use AT20 tool
– Push “GAS FLOW” side of tool into purge button until it stops
– There should be an audible flow of air
– If there is no airflow, use inline tool and turn crown counter- clockwise 1/16 turn
– Repeat first step
Final Testing
• Install hose
– Torque the hose to 45 in/lbs
– Use a torque wrench & 11/16” crow foot
Final Testing• Opening effort
specifications
– Use a magnehelic, the opening effort should be between 1.0-1.5 inches of water
– To adjust opening effort, use a 5mm hex key & turn the adj. screw
– Clockwise will increase the effort
– Counter-clockwise will decrease the effort
Final Testing• Check for leaks
– Immerse second stage underwater
– Look for streaming bubbles; don’t mistake trapped air for leaks
– Note leak source; refer to troubleshooting table in service manual