17. Lamps
a. Removal.
the lamps.
b. Cleaning
(1)
(2)
(3)
Refer to figure
and Inspection.
18. Batteries
5 and remove
a. Removal. Refer to figure 6 and remove
the batteries.
b. Cleaning and Inspection.
(1) Clean the batteries with a clean
Clean the lamps with a clean cloth.
Inspect for cracks, breaks, and a
burned-out condition.
(2)
Replace a damaged or defective lamp.
(3)
c. Installation. Refer to figure 5 and install
cloth. Clean any corrosion from the
contacts with a wire brush.
Inspect for cracks, leaks, and corro-
sion.
Replace
tery.
the lamps.
c. Installation
the batteries.
Section iii. TROUBLESHOOTING
a damaged or defective bat-
Refer to figure 6 and install
19. General
20. No Illumination in Target Light
This section contains information useful in
Probable cause
Possible remedy
diagnosing
and correcting
unsatisfactory
Lamp defective-------Replace lamp (para 17).
operation or failure of the surveying target
Battery defective------Replace battery ( para 18).
light. Each trouble symptom stated is followed
by a list of probable causes of the trouble.
The possible remedy recommended is described
21. Illumination Cannot Be Controlled
opposite the probable cause. Any trouble be-
Probable cause
Possible remedy
yond the scope of the organizational mainte-
Rheostat defective----Replace rheostat ( para 32).
nance will be reported to direct support main-
tenance.
Section iV. FRONT PLATE ASSEMBLY
22. General
b. Cleaning and Inspection.
This section contains information cm the
(1) Clean all metal parts with an ap-
maintenance of the f rent plate assembly which
proved cleaning solvent and dry
is the responsibility y of organizational main-
thoroughly.
tenance. This maintenance does not include the
(2) Inspect for cracks, breaks, corrosion,
replacement of the front plate contacts.
and other damage.
(3) Replace a damaged or defective front
23. Front Plate Assembly
plate assembly.
a. Removal. Refer to figure 7 and remove the
c. Installtion. Refer to figure 7 and install
front plate assembly.
the front plate assembly.
10
AGO 10117A
