TM 5-4320-300-14
4-40. SUCTION AND DISCHARGE COMPANION (COUPLING) FLANGES (CONT)
Location/Item
Action
Remarks
3.
Companion
Remove nuts attaching flange to pump body.
flange, suction
Remove flange. Remove and discard gasket.
Make sure mating surfaces are clean and free
of gasket remnants.
4.
Companion
Support the flange, and remove screws and
flange,
nuts attaching flange to flange elbow. Remove
discharge
and discard gasket. Make sure mating surfaces
are clean and free of gasket remnants.
REPAIR
5.
Nuts, screws,
Inspect threaded components for damage. Re-
and washers
place if damaged. Inspect washers for distor-
tion and burrs. Replace if damaged. Screws
attaching chain S hooks to plugs shall be tight.
6.
Plug chain
Inspect chains for broken and/or damaged
and chain
links. Replace damaged chains. Chain S hooks
S hooks
shall show no evidence of distortion and/or
cracking. Discard if damaged.
7.
Protective
Inspect for damaged threads. If threads cannot
plugs
be repaired adequately to permit installation
into companion flange, discard plug.
8.
Companion
Inspect for damaged threads; discard if leak
flanges
would result during use. Inspect for damage
to gasket mating surface that would prevent
leakproof seal; discard if leakage would result
during use.
INSTALLATION
9.
Companion
Place gasket and flange onto flange elbow.
flange,
Aline holes in flanges with those in gasket.
discharge
Install screws through flanges. Thread nuts
onto screws. Tighten nuts securely, in an
alternating pattern.
10. Companion
Install gasket over studs and onto pump body.
flange, suction
Place flange over studs, against gasket. Thread
nuts onto studs. Tighten nuts securely, in an
alternating pattern.
11. Protective
If necessary, attach chain S hooks to plug
plugs
chain bracket using screw, nut, and washers.
Tighten securely. Thread plugs into respective
ports.
4-160
