ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0057 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
CHEMICAL INJECTION SYSTEM
STRAIGHT EDGE
PUMP DIAPHRAGM
SPACER
Figure 10. Pump Diaphragm Positioning.
3. Install the new pump head assembly as follows:
a. Secure the pump head assembly to the pump drive assembly with the 4 mounting bolts.
b. Install the suction O-ring, cartridge valve, flat washer, and suction valve housing into the
bottom of the head.
c. Install the O-ring, discharge cartridge valve, flat washer, and four-function valve into the
top of the pump head.
d. Position the pump and secure it to the mounting plate using the 4 screws, washers and
nuts removed earlier.
e. Reconnect the discharge, return, and suction tubes to the pump.
4. Startup the TWPS from Standby Shutdown and prime the chemical injection pump as described
in the Chemical Injection Pump Replacement procedure earlier in this WP.
5. Check the new pump head for leaks.
Chemical Injection Pump Repair / Pump Diaphragm:
Parts:
Pump Diaphragm (TM 10-4610-309-24P)
Material:
Five gallon bucket
Equipment Condition:
TWPS Electrical Power "ON" initially and "OFF" when specified
Replace the Pump Diaphragm on the chemical injection pump as follows:
1. Remove the Chemical Injection Pump Diaphragm as follows:
a. Depressurize the discharge tubing and drain and flush the chemical injection pump as
described in the Chemical Injection Pump Replacement procedure earlier in this WP.
b. Place the TWPS in Standby Shutdown without draining down, including switching the main
circuit breaker on the power distribution panel (PDP) to OFF (WP 0017).
c. Remove the discharge, return, and suction tubes from the pump.
d. Remove the 4 screws, washers, and nuts that secure the pump to the mounting base and
reposition the pump as desired for easy access to the pump head assembly.
0057 00-13
