Operating instructions

which is peculiar to the operator’s
(first echelon) maintenance operations.
27. Procedure
Malfunctions which may occur with
the nozzle tester are listed in table
II. Upon observing any one of these
malfunctions, take immediate steps to
locate and correct the cause. Causes
are listed opposite each malfunction
and are arranged according to the ease
of correction.
Table II. Troubleshooting
Malfunction
Probable cause
1. Test fluid
starvation.
2. Unable to
a. Hydraulic pres-
build up
hydraulic
pressure
on hydrau-
lic pres-
sure gage
(2, fig. 1).
sure gage not
threaded tight-
ly into dis-
charge block
sub-assembly
Gage valve
assembly not
threaded tight-
ly into dis-
charge block
sub-assembly
Corrective action
Table II. Troubleshooting – Continued
Corrective action
Malfunction
a. Refer malfunc -
tion to
organization-
al mainte-
nance person-
nel for
correction.
a. Tighten hydrau-
lic pressure
gage farther
into dis-
charge block
subassembly
(fig. 4).
b. Tighten gage
valve assem -
bly farther
into discharge
block sub-
assembly
(fig. 4).
3. Indications
of test
fluid leak-
age at
plunger of
body and
plunger
(1-A, fig.
3).
Probable cause
c. Socket head cap
screws loose
in discharge
block sub-
assembly.
d. Loose connec-
tion to either
the upper or
lower dis-
charge outlet
(3-D, and
3-E, fig. 1) 01
cap nut
assembly
(3-F, fig. 1),
not tight on
discharge
outlet not in
use.
e. Other causes --
c. Tighten socket
head cap
screws far-
ther into dis-
charge block
sub-assembly
(4, fig. 3).
d. Tighten connec-
tion and cap
nut assembly
on discharge
outlets.
e. Refer other
causes to
organization-
al mainte-
nance person-
nel for
correction.
Refer malfunc-
tion to
organization-
al mainte-
nance person-
nel for
correction.
12