ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0066 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
GENERAL MAINTENANCE
c.
Install the flexible coupling over the gasket and install the bolts and nuts but do not
tighten.
d. Inspect the coupling and gasket to make sure the gasket is fitted around the piping and
not in the coupling grooves. Rotating the coupling back and forth will set the gasket.
e. Tighten the coupling nuts and bolts.
Flexi Joint Expansion Joint Replacement:
Parts (TM 10-4610-309-24P):
Flexi Joint Expansion Joint
Materials:
Clean, dry, lint-free rags (WP 0079, Table 1, item 33)
Equipment Condition:
TWPS in Standby Shutdown with Drain-Down
The instructions that follow describe the steps for replacing a flexi joint expansion joint (see Figure 16).
1. Make sure the TWPS is in Standby Shutdown with Drain-Down. Refer to WP 0017.
2. Remove the flexi joint expansion joint as follows:
a. Remove the 8 bolts and 8 washers that secure the flexi joint to the piping flange.
NOTE
The flexi joint above V-113 will have only one gasket.
b. Spread the piping apart just enough to remove the flexi joint and gaskets.
BOLTS AND WASHERS
PIPE FLANGE
GASKET
FLEXI JOINT
LIMIT LINK
Figure 16. Flexi Joint Expansion Joint.
3. Clean the piping flanges with a clean, lint-free rag and inspect the piping and pipe flange
connections for rust, corrosion and damage that would prevent the flexi joint from sealing.
4. Install the new flexi joint as follows:
a. Ensure that the new flexi joint limit links are in place and not broken.
b. Spread the piping apart and insert the new flexi joint and gaskets between the piping.
c. Center the gaskets.
d. Secure the piping flanges to each side of the flexi joint using the 8 bolts and 8 washers.
e. Run the unit and check the joint for leaks.
0066 00-17
