C1, TM 9-1240-318-35
Table 2-1. Special Tools and Equipment-Continued
Used to aline or verify alinement of final
To simulate shock conditions after
instrument has been repaired. (Depot)
To remove and install cell and retaining
2-3. Universal Vibration Tester
b. Amplitude and frequency
of the vibrator are
adjusted as required by the specifications for the
Frequency of vibration of the tester is
motor-driven vibrator which uses a mounting adapter for
controlled by adjusting the speed of rotation indicated on
mounting the telescope. It is used to simulate conditions
the frequency meter. This is accomplished by adjusting
of shock and handling that the telescope would receive
the belt-driven variable speed pulley by means of its
in normal use, determines that all parts are secure, and
handwheel. Amplitude is adjusted by the tee-handled
reveals loose dirt, which would affect the efficient
screw on the side of the tester. Refer to instruction
operation of the telescope.
plates and caution plates attached to the vibration tester.
A timer switch, wired into the electrical circuit, is set for
the time of vibration required.
Figure 2-1. Universal vibration tester 4931-536-5555.