EOTech CNVD-T3 Clip-On Night Vision Device - Thermal 3 - Manual (Page 57)

3-5
3.3 CORRECTIVE MAINTENANCE
See section 3.4 for guidance regarding maintenance and/or
repair actions beyond those described in this manual.
3.3.1 Adjusting Throw-Lever Tension
. The throw-lever
mounting bracket has a locknut that adjusts the tension
required to clamp it to the weapon rail. It is preset at the
factory but may need adjustment when initially mounted to
the rail of the host weapon. If adjustment is required, the
following procedures apply and are performed with the
CNVD-T3 removed from the host weapon:
CAUTION ..
Creating too much tension with the locknut may
result in damage to the mounting bracket when the
throw-lever is forced against the weapon rail.
Creating too little tension with the locknut may
allow for movement of the CNVD-T3 on the rail.
Never completely remove the locknut from the
mounting bracket.
Figure 3-2 Adjusting Throw-Lever Tension
Locknut
Throw-Lever/
Lever Lock