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:
55
After
Butterfly Valves
Inspect for loose, broken or missing
Control handle
control handle.
missing
56
After
Suction Hoses
a
Inspect couplings for damage and Couplings
missing gasket.
damaged,
gasket damaged
b
Inspect for crimped, collapsed or
or missing, hose
flattened hose
punctured or torn.
57
After
600 Gpm Pumps
Perform "AFTER" PMCS in
accordance with the applicable TM
58
After
Check Valves
Inspect valve for cracks and
Valve cracked of
corrosion.
damaged
59
After
Pressure Relief
Inspect valve for cracks and
Valve cracked or
Valve
corrosion.
damaged
60
After
Discharge Hoses
a
Inspect couplings for damage
Couplings damaged
and missing gasket.
gasket damaged
b
Inspect for torn, punctured or
or missing, hose
damaged hoses.
punctured or torn.
FLAKING BOX
(HOSELINE)
61
After
Discharge Hoses
a
Inspect couplings for damage
Couplings damaged,
and 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.
62
After
Swivels
a. Inspect couplings for damage
Coupling damaged, gasket
and missing gasket.
damaged or missing,
b
Inspect for missing attaching.
hardware missing.
bolts, nuts and hardware.
63
After
ROADWAY
Check for crushed crossing guards.
Crossing guard
not
CROSSING
serviceable.
GUARDS
64
After
SUSPENSION KITS
a
Check for excessive sag in
suspension cable.
b
Inspect for damaged suspension
cable and loose stakes or
turnbuckles.
2-20
