TM 10-4610-310-14
UNIT MAINTENANCE
LIGHTWEIGHT WATER PURIFIER
CHEMICAL PUMPS
REMOVAL/INSTALLATION
INITIAL SETUP
Tools
Personnel Required
2
Tool Kit, General Mechanics, Automotive
Material/Parts
Equipment Condition Required
Rags, cotton, (item 21, WP 0136)
All equipment de-energized.
Pump, injection, diaphragm, (PN 1002696000)
GENERAL
This work package contains information and instructions for the removal and installation of the three chemical
pumps [antiscalant (P5), coagulant (P6), hypochlorite (P7)] in the chemical module used on the Lightweight
Water Purifier (LWP).
REMOVAL
NOTE
This work package is applicable to all three chemical diaphragm injection pumps.
1. Ensure that all switches on the control module are at the OFF position.
CAUTION
To prevent possible cross contamination of chemicals and serious damage to the reverse
osmosis membranes, only one chemical diaphragm injection pump should be replaced at a
time.
2. Remove chemical suction and discharge tubing from the appropriate pump. See WP 0104 00.
3. Loosen four screws on chemical module junction box cover and remove the cover.
JUNCTION BOX
COVER
HUB
Figure 1. Junction Box Cover.
