Unit Preventive Maintenance Checks and Services
for Hypochlorination Unit.
M - Monthly
Q - Quarterly
A - Annually
ITEM TO BE
NOT FULLY MISSION CAPABLE
Clean and inspect.
Clogged or damaged.
Clean and grease.
SECTION IV. UNIT TROLIBLESHOOTING.
INTRODUCTION. This section covers troubleshooting procedures which are for most frequent problems
encountered in operating hypochlorinatlon unit
UNIT TROUIBLESHOOTING TABLE.
Use of Table. Table 4-2 lists common malfunctions which could be encountered during operation or
maintenance of hypochlorination unit Tests, Inspections, and corrective actions should be made or taken in
Limitation This manual cannot list all the problems that may occur, or all tests. inspections, and corrective
actions If a problem is not listed. or Is not corrected after corrective actions are taken, notify Direct Support
TEST OR INSPECTION
PROPORTIONING PUMP STOPS PUMPING
Step 1. Inspect suction valve
Make sure valve not clogged or damaged. If clogged, clean or replace If damaged, replace (Paragraph 4-