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TM 10-4930-248-13&P
5-2.
CCR
NOZZLE
ASSEMBLY
REPAIR
- continued.
d.
Testing - continued.
WARNING
Drycleaning
solvent, P-D-680 Type III, used to clean parts is potentially
dangerous
to personnel
and property.
Use in a well-ventilated
area as the
fumes are dangerous
if inhaled.
Avoid repeated
and prolonged
skin contact.
Do not use near open flame or excessive
heat. Flash point of solvent is 138'F.
NOTE
There shall be no evidence of leakage
during flow conditions,
binding,
valve
chatter,
distortion,
or requiring
excessive force at connecting
and
disconnecting
of the nozzle to the test adapter.
(2)
Pressure
test with nozzle in the OPEN (flow) position.
(a)
Position
nozzle handle
(1) in the CLOSED
(no flow) position
and connect
nozzle
assembly
(9) to test adapter
outlet (2) and test adapter
inlet (3).
(b)
Close valve (8) and move nozzle handle
(1) to the OPEN (flow) position.
(c)
Adjust pump (5) to 5 psig at the nozzle inlet gage (4) and maintain
pressure
for 1
minute
minimum.
(d)
Slowly increase
pump (5) pressure
to 90 psig at gage (4) and maintain
pressure
for 1
minute
minimum.
(e)
Reduce pump (5) pressure
to 20 psig and open valve (8).
(f)
With nozzle handle
(1) in the OPEN (flow) position,
remove nozzle from adapter
(2).
There shall be no evidence
of leakage
from the nozzle discharge
end.
(g)
Move nozzle handle
(1) to the CLOSED
(no flow) position
and reduce pump (5)
pressure
to zero.
(3)
Pressure
test with nozzle in the CLOSED
(no flow) position.
(a)
Move nozzle handle
(1) to the CLOSED (no flow) position.
(b)
Disconnect
Nozzle (1) from test adapter
outlet (2).
(c)
Adjust pump (5) to 5 psig at the nozzle inlet gage (4) and maintain
pressure
for 1
minute
minimum.
(d)
Slowly increase pump (5) pressure
to 90 psig at gage (4) and maintain
pressure
for 1
minute
minimum.
(e)
Reduce
pump (5) pressure
to zero.
5-20
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