TM 9-1240-400-34&P
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
a. Repair head assembly. Refer to page 2-22.
b. Repair body assembly. Refer to page 2-28.
2. ELEVATION KNOB (2) BINDS.
Observe visually.
Focus lens. Refer to page 2-63.
BODY ASSEMBLY
3. COUNTERS (3) DO NOT OPERATE.
Adjust knobs.
Repair body assembly. Refer to page 2-28.
4. COUNTERS (3) ARE ILLEGIBLE.
Observe visually.
Repair adapter assembly. Refer to page 2-42.
5. GEAR TRAIN (4) IS NOISY WHEN OPERATED.
Rotate knobs.
Repair body assembly. Refer to page 2-28.
ELBOW ASSEMBLY
6. LENS (5) WILL NOT FOCUS.
Observe visually.
Repair elbow assembly. Refer to page 2-50.
7. LENSES (5) ARE DAMAGED.
Observe visually.
Repair elbow assembly. Refer to page 2-50.
2-11
