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Summary of Contents for Apeks T20
- Page 1 Apeks T20 First St age 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
Apeks Regulator Service and Repair Manual INTRODUCTION GENERAL PROCEDURES Apeks regulators are the product of many years of research MAINTENANCE SCHEDULES and development. Apeks has utilized proven materials and design to maximize reliability and performance. Regulators are subjected to a variety of environmental el-... -
Page 4: Infrequently Used Regulators
INFREQUENTLY USED REGULATORS Do not assume that the regulator is in good condition be- Apeks regulators are intended for use in water tempera- cause of infrequent use or because it has been in storage. tures warmer than 45ºF (7ºC). Colder water may cause... - Page 5 Apeks Regulator Service and Repair Manual TABLE 1 RECOMMENDED TOOLS Sea Quest Part No. Description Application Padded bench vise Assembly and disassembly of first stage 1003-95 Vise mounting tool Assembly and disassembly of first stage AT30 Pin Spanner Wrench Removal/installation of diaphragm cap 1/4"...
- 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 1. Before disassembling the first stage, remove the low pressure second stage hoses with a b” open-end wrench, and the low pressure infla- tor hose with a b” or 2" open-end wrench. Remove the high pres- sure hose with a s”... -
Page 8: Disassembly Of Yoke Connector
Apeks Regulator Service and Repair Manual of the valve body (see Fig. 4). Carefully lift out the balance plug, along with the spring(12) and HP valve(11). 10. Separate the spring and HP valve from the HP balance plug. Discard the HP valve, and closely examine the spring with the use of a mag- nifier to check for any signs of pitting, rusting, or other corrosion that permeates the surface of the metal. - Page 9 Apeks Regulator Service and Repair Manual B. Remove both O-rings(25&29) and the conical filter(26) from the handwheel connector. Discard these items and do not reuse. Closely inspect the condition of the handwheel connector, includ- ing the thread and the sealing areas of both O-rings. Replace the part if any damage is found, or set it aside to be reused.
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Page 10: Cleaning & Inspection
Apeks Regulator Service and Repair Manual CLEANING & INSPECTION 1. All parts should be cleaned first in a warm (not over 120°F) mild soap and water solution. Use a soft nylon bristle brush to help remove any excess or loose contamination. After an initial warm water and soap cleaning all parts should be thoroughly rinsed in clean fresh water and dried with filtered low pressure (30 psig) air. - 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: Diaphragm (5) HP Valve Seat (11) Disc Filter - Yoke Clamp Connector (31) Conical Filter - DIN Connector (26) All O-rings and the above mentioned routine replacement parts are included in the Overhaul Service Kit (P/N APO227).
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Page 12: Reassembly Procedures
Use only genuine Apeks parts, subassemblies, and components when- ever assembling any Apeks product. DO NOT attempt to substitute an Apeks part with another manufacturer’s, regardless of any similarity in shape, size, or appearance. Doing so may render the product unsafe, and could result in serious injury or death. -
Page 13: Reassembly Of Yoke Connector
Apeks Regulator Service and Repair Manual 9. REASSEMBLY OF YOKE CONNECTOR A. Lay a new disc filter(31) inside the yoke clamp connector(32), and press it firmly into place with the use of a wooden or plastic dowel, so that it is seated evenly on all sides. -
Page 14: Final Adjustment And Testing Procedures
Apeks Regulator Service and Repair Manual 14. Loosen the vise to turn the first stage over, and re-secure it so that the HP balance plug faces straight up. Apply a torque wrench with 6mm hex key socket to tighten the balance plug to a torque measurement of 12 foot-lbs. - Page 15 135 (±5) psi, with no signs of creeping or fluctuation. 7. After performing the overhaul and adjustment procedures outlined in the Apeks Second Stage Service & Repair Manual, connect the first and second stage regulators to perform the following tests: 8.
- Page 16 Apeks Regulator Service and Repair Manual TABLE 3 – T20 FIRST STAGE TROUBLESHOOTING SYMPTOM CAUSE ACTION REQUIRED Restricted airflow/ high in- 1. Cylinder valve not completely opened. 1. Open valve, check fill pressure. halation resistance through entire system. 2. Cylinder valve requires service.
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Page 17: Repair And Replacement Parts
Apeks Regulator Service and Repair Manual REGULATOR REPAIR AND REPLACEMENT PARTS APEKS T20 FIRST STAGE Item Description Part # Item Description Part # Spring Adjuster AP1474 Hydrostatic Transmitter AP1483 Diaphragm Cap AP1485 1st Stage Decal AP1477 Spring AP1475 Hydrostatic Diaphragm... -
Page 18: Schematic Drawing
Apeks Regulator Service and Repair Manual Apeks T20 First Stage Schematic Drawing...
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