Repair manual
Table Of Contents
- Contents
- Introduction
- Safety Precautions
- General Procedures
- Maintenance Schedules
- Initial Inspection and Pre-Test
- Infrequently Used Regulators
- Work Area & Required Tools
- O-ring Removal
- Lubrication
- Table 1 – Recommended Tools
- Table 2 – Lubricant and Cleaner
- Disassembly Procedures
- Cleaning & Inspection Procedures
- Reassembly Procedures
- Final Adjustment and Testing Procedures
- Table 3 – Troubleshooting
- Repair & Replacement Parts
- Schematic Drawing
16
Apeks Regulator Service and Repair Manual
SYMPTOM CAUSE ACTION REQUIRED
TABLE 3 – TX100 FIRST STAGE TROUBLESHOOTING
Recommended treatments which require disassembly of the regulator must be performed during
a complete overhaul, according to the prescribed procedures for scheduled, annual service. Do
not attempt to perform partial service. For assistance with a problem not described here, contact
a Sea Quest Technical Advisor.
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. 2. Connect to a different cylinder.
3. Disc filter(31) is contaminated. 3. Replace with new.
4. Insufficient intermediate pressure. 4. See below.
High or unstable intermediate 1. First-stage improperly adjusted. 1. Readjust spring adjuster(5).
pressure
2. HP valve seat(12) damaged or worn. 2. Replace HP valve seat.
3. HP balance plug O-ring(14) damaged 3. Replace O-ring.
or worn.
4. HP balance plug(17) damaged. 4. Replace with new.
5. Sealing surface of HP valve body(11) 5. Replace with new.
damaged.
6. Valve spring(13) weakened or damaged. 6. Replace with new.
Low intermediate pressure 1. First-stage improperly adjusted. 1. Readjust spring adjuster(5).
2. Main spring(7) damaged. 2. Replace with new.
3. Diaphragm clamp(6) loose. 3. Tighten flush with valve body.
External air leakage 1. Diaphragm clamp(6) loose. 1. Tighten flush with valve body.
(Immersion Test)
-or- 2. Diaphragm(9) worn or damaged. 2. Replace diaphragm.
hydrostatic diaphragm
is abnormally distended or burst 3. Diaphragm seating surface inside 3. Replace with new.
first stage valve body(11) damaged.
4. HP balance plug O-ring(15 or 16) damaged. 4. Replace with new.
Entrance of water visible beneath 1. Hydrostatic diaphrag(2) worn or damaged. 1. Replace with new
hydrostatic diaphragm
2. Environmental end cap(1) or diaphragm 2. Inspect both parts and tighten or
clamp(6) loose or damaged. replace with new as needed.