TM 10-4320-345-13
Table 2-1. Operator Preventive Maintenance Checks and Services for Model TWDS20 - cont.
Location
Item
Internal
Item to
Procedure
Not Fully Mission
No.
Check/Service
Capable If:
65
After
PRESSURE
a
Inspect valve body for damage
Valve body cracked or
REGULATING
and corrosion.
Damaged.
VALVE
b
Inspect for missing attaching
bolts, nuts and hardware.
66
After
PRESSURE RELIEF
a
Inspect valve body for external
Valve body cracked or
VALVE
damage and corrosion
damaged.
b
Inspect for loose or missing
attaching bolts, nuts and
hardware.
STORAGE
ASSEMBLY
67
After
Tee
Inspect tee for external damage and Tee cracked, damaged or
corrosion
severely corroded
68
After
Gate Valves
a
Inspect couplings for damage and Coupling damaged, gasket
(4-Inch)
missing gasket
damaged or missing,
b
Inspect for missing attaching
hardware missing.
bolts, nuts and hardware.
c
Inspect for bent or damaged
valve stems
69
After
Discharge Hoses
a. Inspect couplings for damage and Couplings damaged,
missing gasket
gasket damaged or
b. Inspect for missing attaching
missing, hose punctured
bolts, nuts and hardware
or torn.
c
Inspect for torn, punctured or
damaged hoses
70
After
Water Meter
a. Inspect quick disconnect couplings
Water meter cracked or
for damage and missing gasket,
damaged.
caps, or plugs
b
Inspect for missing attaching
bolts, nuts and hardware
c
Inspect for cracked or damaged
meter indicator
71
Before
20K Collapsible
Perform "AFTER" PMCS in
Fabric Tank
accordance with the applicable TM
2-21
