Manual, Fluid/Air, FS2
Document #9620-20-D-FS2-04
Pinnacle Park • 1031 Goodworth Drive • Apex, NC 27539 • Tel: 919.772.0115 • Fax: 919.772.8259 •
D-8
5.2 Service Procedures
The following service procedures provide instructions for replacement of components.
5.2.1 Master Side Self‑Sealing Valve
Parts required: Refer to
Tools required: 2.5 mm Allen Wrench, torque wrench
Supplies required: Clean rag, Magnalube G lubricant
1. Place the Tool in a secure location.
2. Uncouple the Master and Tool plates.
3. Turn off and de‑energize all energized circuits (e.g. electrical, air, water, etc.).
NOTICE:
Debris can be expelled at high velocity during the purge, take all required
safety precautions.
4. Purge and disconnect all customer plumbing connections to the module.
a. Turn the supply lines off.
b. Cover the valves with a rag for safety.
c. Manually actuate the module’s self‑sealing valves to purge the line pressure. Note: Debris
can be expelled at high velocity during the purge, take all required safety precautions.
5. Depending on the type of service or repair, connections to the module might also need to be
disconnected.
6. Remove the valve stem using a 2.5 mm Allen wrench. Do not strip the hex on the valve stem
during removal.
7. Remove the check valve piston and spring. Clean any lubrication from the check valve piston,
valve stem, spring, and bore in the module housing using a clean rag.
8. Inspect the valve stem for straightness, and replace, if bent.
9. Inspect the o‑rings and u‑cup seal on the valve stem and check valve piston for wear and
damage. Replace components that are damaged or worn.
10. Inspect the spring in the assembly and replace if damaged or worn.
Figure 5.1—Master Self‑Sealing Valve
Bore in Module Housing
(Clean)
2.5 mm Allen Wrench
Valve Stem (Inspect)
Check Valve
Spring (Inspect)
O-Ring
(Inspect)
O-Ring
(Inspect)
U-Cup Seal
(Inspect)
Valve Stem
Check Valve
U-Cup Seal
O-Ring
O-Ring
(Face Seal)