C1, TM 9-1240-318-35
Table 4-1. Troubleshooting - Continued
Poor or no reticle
a. Burned out lamp or defective
a. Replace lamp or batteries (para
batteries in instrument light.
b. Reticle cell loose in housing.
b. Aline and secure reticle cell in
c. Reticle not properly alined in
c. Aline reticle in cell and plumb
a. Telescope do vetail not
a. Secure Telescope in mount by
secured in mount.
locking clamping lever.
b. Dirt, nicks, or paint on
b. Clean and remove nicks or paint
Reticle accuracy exceeds
Erector system improperly alined.
Aline erector system properly (para