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

Apeks Regulator Service and Repair Manual
9
Figure 7
Removing DIN Connector
C. Remove and discard the O-ring(29) from the base of the yoke
clamp connector. Stand the connector on a flat surface with the
disc filter(31) facing down. Insert a 1/4” wooden or plastic dowel,
and tap out the filter with a small mallet.
16. DISASSEMBLY OF DIN CONNECTOR
A. Remove the protective cap(32) from the threads of the
handwheel(35). Apply a 6mm hex key to the hand wheel con-
nector(34), and turn it counter-clockwise to loosen and remove
(see Fig. 7).
B. Remove both O-rings(33&37) and the conical filter(36) 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.
C. Closely inspect the threads of the handwheel to ensure they are
free of any burrs or other damage that could prevent proper thread-
ing. Replace the part if damage is found, or set it aside to be
reused.
17. Loosen the vice to remove the valve body, and remove the vise mount-
ing tool. Remove all remaining blanking plugs, and remove and dis-
card their O-rings.
18. Under adequate lighting and magnification, closely inspect the con-
dition of the sealing crown inside the valve body to check for any
scratches, corrosion, or other signs of damage.
If the sealing crown of the valve body appears to be damaged
and a persistent intermediate pressure leak was detected prior
to disassembly, it may be necessary to replace the valve body
with new.
This concludes the disassembly procedures.
NOTE