TM 55-4920-231-14
(5) Place oil hose tube in a suitable con-
(2) Clean sump bowl and filter (figure 18)
tainer and start the tester (paragraph 36).
with cleaning solvent Federal Specification P-D-
(6) Turn pressure INCREASE knob (12,
680 or equivalent, and dry with clean, lint-free
cloth or dry, compressed air.
of 20 psi on fuel pressure gage (5).
(3) Install filter, place gasket and bowl in
(7) Place power switch (14) in OFF posi-
position on filter sump body and secure with the
tion and turn selector valve lever (5, figure 9)
clamp (paragraph 74c).
to DRAIN position as shown on selector valve
(4) Clean the other sump in same manner.
instructions (15, figure 4) and allow oil to drain
e. Cleaning Check Valves.
into container.
(8) If oil reservoir (16) does not drain
(1) Remove and disassemble the check
completely, repeat procedure and discard oil.
valve (figure 18) as instructed in paragraph 75.
(9) Remove oil hose tube (8, figure 3)
(2) Clean the parts of the check valve with
from oil hose (12, figure 4) and install cap (4).
cleaning solvent Federal Specification P-D-680
(10) Place oil hose between reservoir (16)
or equivalent, and dry with a clean, lint-free
and side panel of tester.
cloth or dry, compressed air.
(11) Turn selector valve lever to RUN posi-
(3) Replace all O-rings.
tion as shown on selector valve instructions (15)
(4) Reassemble and install the check valve
and close rear access panel (11).
as instructed in paragraph 75.
d. Cleaning SUmps.
(1) Remove damp, bowl, gasket, and filter
(5) Clean the other check valve in the same
from filter sump body (paragraph 74a).
manner.
Section III. PREVENTIVE MAINTENANCE SERVICES
eration, services will be performed at intervals
53. GENERAL.
based on normal operation of equipment reduc-
This section contains a tabulation of the daily,
ing interval to compensate for abnormal condi-
before operation, during operation, and after op-
tions. Defects or unsatisfactory operation beyond
eration preventive maintenance services that will
the scope of the operator to correct must be re-
be performed by the operator of the tester. To
ported at the earliest opportunity.
ensure that the equipment is ready for operation
at all times it must be inspected systematically so
that defects may be discovered and corrected be-
The specific daily services to be performed by
fore they can result in serious damage or failure.
the operator are listed in table 4. The interval
Defects discovered during operation of unit will
at which the services are to be performed is indi-
be noted for future correction to be made as
cated by an X in the appropriate column. Cor-
soon as operation has ceased, or operation will be
stopped if defect will cause damage to equip-
rect all deficiencies noticed or report them to
the proper authority.
ment, should operation be continued. After op-
Procedure
x
Visual Inspection. Make a visual inspection of teeter and its accessories. Check for
loose, damaged, or miming parts.
x
Electrical. Inspect all wiring and cable assemblies for damage, deterioration, and loose
connections, and all components for evidence of overheating. Check power switch
for mechanical operation.
x
Leaks. Check for defective hoses, loose connection, and look for evidence of oil
leakage.
x
Lubrication. Provide the proper amount of clean oil specified for operation in tempera-
ture range indicated on lubrication chart.
