9. SERVICEABILITY TEST
The principal tests to be performed on the range finder are listed below. Table 9.1
What is checked, tools, instruments, |
| Technical requirement | |||
equipment. Test procedure |
|
| |||
1. Range finder completeness |
| Range finder is complete with all | |||
|
|
|
| components listed in Section 5 | |
2. Range finder exterior | Exterior surfaces are clean and free | ||||
|
|
|
| from cracks, dents and rust | |
3.Exterior | of | range finder optical | Optical surfaces are free from | ||
parts (to be checked visually). Make | cracks, scratches, chips, dirt, grease | ||||
sure the unit is off! | stains (on exterior) and condensed | ||||
|
|
|
| moisture (inside) | |
4. Dehydrator case of range finder ( to | Silica gel is bluish in colour | ||||
be checked visually) |
| ||||
5.Battery voltage. Proceed as directed | Red glow not observed in left | ||||
under 8.3.1. |
|
| eyepiece of range finder | ||
6. Illumination of range finder Binocular | Binocular reticule is illuminated | ||||
reticule. Check that front cover is |
| ||||
closed on range finder and set ILLUM. |
| ||||
selector switch to ON |
| ||||
7.Functioning of range finder. Proceed | Measurement results are within 5 m | ||||
as directed under 8.3.2. | of predetermined range or on | ||||
8. Setting | of | zero elevation reference | another ER “O” error determined for | ||
vertical angle scale is to be | |||||
(ER “0”). Proceed as under 8.6.1. | |||||
reckoned in while measuring target | |||||
|
|
|
| ||
|
|
|
| elevation | |
| Table 9.1, continued |
|
|
What is checked, tools, instruments, | Technical requirement |
equipment. Test procedure |
|
|
|
9. Sensitivity, indexing uniformity | Turn in unit for repair if even a |
and balance of magnetic needle. | single requirement of 8.6.2. is |
Proceed as under 8.6.2. | not satisfied |
10.AI azimuth and elevation If necessary, tighten bushings on
adjustment knobs for play | knob end faces to eliminate play |
10.MAINTENANCE
10.1.Maintenance Organization and Procedure. General
Instructions.
10.1.1.This Section deals with the maintenance services prescribed for the range finder, excepting the battery servicing procedure. For the latter procedure, refer to Section 16.
10.1.2.The range finder is serviced to ensure its operability and readiness for operation.
The range finder is subject to timely
10.1.3.While preparing for and caring out the maintenance services, observe the safety precautions as outlined in Section 6.