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Summary of Contents for Sea Quest Apeks Regulator
- Page 1 Apeks Second Stage Regulator Service & Repair Manual for Authorized Sea Quest Service Centers ©2000 Sea Quest, Inc.
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Page 2: Table Of Contents
Contents Introduction ..............................3 Safety Precautions ............................3 General Procedures ............................3 Maintenance Schedules ..........................3 Initial Inspection and Pre-Test ......................... 3 Infrequently Used Regulators ........................4 Work Area & Required Tools ........................4 O-ring Removal ............................4 Lubrication ............................... 4 Table 1 –... -
Page 3: Introduction
This manual is intended only as a guide for the experi- product. As an Authorized Sea Quest/Apeks Dealer you enced repair person that has completed a Sea Quest/ Apeks are advised to inform your staff and customer that Sea service and repair seminar. It is not intended to educate... -
Page 4: Infrequently Used Regulators
Users of WORK AREA & REQUIRED TOOLS Sea Quest regulators are advised to ensure that they are adequately trained to deal with a regulator in a freeflow Servicing and repair of the regulator should be carried out condition or an out-of-air emergency before attempting in a clean well lighted work area. - Page 5 Apeks Regulator Service and Repair Manual TABLE 1 RECOMMENDED TOOLS - APEKS SECOND STAGES Sea Quest Part No. Description Application 5116236 Seal/seat extractor Removal/ installation of seat crown AT31 Case Cover Tool (TX50/40/T20) Removal/installation of case cover AT42 Case Cover Tool (TX100) Removal/installation of case cover 5mm hex key &...
- Page 6 Apeks Regulator Service and Repair Manual TABLE 2 LUBRICANT AND CLEANER Lubricant / Cleaner Recommended Type Application Source Christo-Lube MCG-111 All O-rings, Lubrication Technologies threaded metal parts 310 Morton Street as indicated Jackson, OH 45640 800-477-8704 Chemical Bath Solution Chromesafe...
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Page 7: Disassembly Procedures
Apeks Regulator Service and Repair Manual DISASSEMBLY PROCEDURES Before performing any disassembly, refer to Table 4, which NOTE references all mandatory replacement parts. These parts must be replaced with new, and must not be reused under any cir- cumstances - regardless of the age of the regulator or how much use it has received since it was last serviced. - Page 8 Apeks Regulator Service and Repair Manual 7. Lift out the diaphragm cover(9) and diaphragm(10) from the case, and closely inspect the diaphragm to ensure that it is perfectly round and free of any tears, deterioration, or other damage. If deterioration or damage is found, discard the diaphragm and do not reuse.
- Page 9 Apeks Regulator Service and Repair Manual 15. Closely examine the spring with a magnifier to ensure it is not dam- aged (bent) or corroded. If any signs of damage or corrosion are found, discard the spring and do not reuse.
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Page 10: Cleaning & Inspection Procedures
(See Lubricant and Cleaner Table 2.) Do not use any petroleum based lubricants or products, or any aerosol silicone sprays on any part of Sea Quest/ Apeks regulators. The petro- leum base or propellant gas may attack or weaken plastic or rubber... - Page 11 Apeks Regulator Service and Repair Manual 5. In addition to the O-rings, the following parts should be routinely replaced at the time of servicing: Exhaust Valve Diaphragm (12) Rubber Seating (31) Mouthpiece Clip (15) All O-rings and the above mentioned routine replacement parts are included in the Overhaul Service Kit (P/N APO219).
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Page 12: Reassembly Procedures
Apeks Regulator Service and Repair Manual REASSEMBLY PROCEDURES Before performing any reassembly, it is important to inspect all NOTE parts, both new and those that are being reused, to ensure that every part and component is perfectly clean and free of any dust, corrosion, or blemishes. - Page 13 Apeks Regulator Service and Repair Manual lever until the shuttle valve drops slightly, while viewing its position through the outlet port of the spindle (see Fig. 11). Then, raise the lever halfway up until it is perpendicular to the valve spindle.
- Page 14 Apeks Regulator Service and Repair Manual 16. Fit either the spacer or the large diameter end of the heat exchanger (item #3) over the threaded inlet of the spindle, and then thread the retaining nut(2) clockwise by hand onto the spindle until it is finger snug.
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Page 15: Final Adjustment And Testing Procedures
Apeks Regulator Service and Repair Manual FINAL ADJUSTMENT AND TESTING PROCEDURES Prior to adjusting and testing the Apeks second stage regulator, the accompanying first stage must be correctly serviced, adjusted to a stable intermediate pressure of 140 psi , and fully tested. Refer to the corre- sponding first stage service procedures before attempting to perform the adjustment and testing of the second stage. -
Page 16: External Leak Test
Apeks Regulator Service and Repair Manual 9. To test the setting of the seat crown, turn the second stage adjustment screw completely out counter-clockwise to initiate a slight flow of air, and then slowly turn it back in clockwise to verify that the airflow has stopped completely before it has been turned 1 full turn. - Page 17 Apeks Regulator Service and Repair Manual TABLE 3 – APEKS SECOND STAGE TROUBLESHOOTING SYMPTOM CAUSE ACTION REQUIRED Leakage or freeflow from 1. High first-stage intermediate pressure. 1. Refer to first-stage Troubleshoot- (should be 140 ±5 psi) second stage ing Guide.
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Page 18: Repair & Replacement Parts
Apeks Regulator Service and Repair Manual REGULATOR REPAIR AND REPLACEMENT PARTS APEKS SECOND STAGES Item Description Part # Item Description Part # Deflector AP2037 Comfo-Bite Mouthpiece 109438 Nut - TX100 AP2031/S Mouthpiece Clip 104913 Nut - TX50/40, T20 AP2031 Exhaust Tee... -
Page 19: Schematic Drawing
Apeks Regulator Service and Repair Manual Apeks Second Stages Schematic NOTE: Apeks has recently introduced a new heat exchanger and spacer which feature a threaded fitting, and do not require a hex nut (item #2).
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