all fractured areas. Large holes should be backed up by
a flat piece of wood, paperboard, or similar while
applying material. Cover entire patch with epoxy and
Remove tank assembly from tank support assembly
allow to cure. The size and nature of damage may
indicate the need for additional layers of patching
Remove components attached to tank assembly using
a. Remove top fill cap and strainer components
and the following steps as guides:
(1) Install liquid level gage (110) in tank as
b. Unscrew elbow (112) from tank connector, and
(2) Install sump (34) to opening in bottom of
adaptor (111) from elbow.
c. Remove bypass valve assembly (52) from tank
(3) Install bypass valve in opening in bottom
connector by cutting and discarding lockwire (48) and
front of tank as follows:
removing six bolts (49) and washers (50). Remove
(a) Coat new gasket (51) and bolts (49)
bypass valve and gasket (51).
with Tite-seal gasket and joint sealing compound, part
d. Remove sump (34) from tank as instructed in
No. T3504 or equivalent.
(b) Place gasket (51) on flange of
e. Remove liquid level gage (110) from tank
bypass valve (52) with mounting holes aligned.
(c) Place valve into position, with valve
mounting flange mating with connector flange. Align
Cleaning, Inspection, and Repair
mounting holes so that valve end ports are canted to
approximately 5 o'clock/11 o'clock position as viewed
a. Clean tank thoroughly to remove buildup of
from front of tank. Be sure flow direction arrow on valve
spray fluid residue and other foreign matter. Clean all
points toward end of tank.
threaded parts and connectors.
(d) Attach valve to connector flange with
b. Inspect tank for damage, cracks, and holes.
six washers (50) and bolts (49). Secure bolts tight, and
Determine extent of damage and if tank can be repaired.
then lockwire per MS33540. Lockwire three bolts on
If damage is too severe, replace tank.
each side together, with breaking point in line with flow
attachment fittings and connectors for security and
condition of threads.
(4) Wrap male threads of elbow (112) and
c. Repair minor cracks, holes, or other leaks by
pipe to hose adaptor (111) with teflon tape, Military
pushing epoxy resin through opening and permit it to
Specification MILT-27730. Install elbow (112) into tank
cure for the required time. Follow directions on epoxy
connector, and pipe to hose adapter (111) into elbow.
container carefully when preparing and using the
(5) Install top fill strainer assembly and cap
material. Tank areas to be repaired must be prepared by
thorough cleaning and roughening of the surface.
Generally, this may be done by sandpapering. Sharp
edges should be beveled to insure secure bonding. All
surfaces to be bonded must be kept free of dirt, oil,
grime and fingerprints.
Install tank assembly into tank support assembly (133)
d. Repair of larger damage requires use of a
reinforced patch of glass or linen cloth on top of
previously applied epoxy. Coverage must extend beyond