TM 10-4610-229-10
Table 2-1. Preventive Maintenance Checks and Services (Cont)
B - Before
D - During
A - After
M - Monthly
Interval
Item
Item to be Inspected.
Equipment Is Not
No.
B
D
A
M
Procedure
Ready/Available If:
Pretreatment Assembly (Cont)
25
Chemicals, Chemical Metering
Chemical drums low.
Pumps, and Tubing. Check empty
Pump not operating.
supply indicator on pump. If
Pump leaking.
indicator is red, replenish
coagulant aid or scale inhibitor
(item 3 or item 11, appendix D)
as required. Verify that pump is
operating. (Amber light should
pulsate.) Check for leaks or
cracks in tubing and tube
connections. If needed, tighten
connections. If pump not
operating or if tubing leaks,
notify your supervisor.
2-45
