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 cracks, | ||
parts (to be checked visually). | scratches, chips, dirt, grease stains (on | ||
Make sure the unit is off! | exterior) | and condensed moisture | |
|
| (inside) |
|
4. Dehydrator case of range finder | Silica gel is bluish in colour | ||
(to be checked visually) |
|
| |
5.Battery voltage. | Proceed as | Red glow not observed in left eyepiece of | |
directed under 8.3.1. | range finder | ||
6. Illumination of range finder | Binocular reticle is illuminated | ||
Binocular reticle. Check that front |
|
| |
cover is closed on range finder |
|
| |
and set ILLUM. selector switch to |
|
| |
ON |
| Measurement results are within 5 m of | |
|
| ||
7.Functioning of | range finder. | predetermined range or on another ER | |
Proceed as directed under 8.3.2. | “O” error | determined for vertical angle | |
8.Setting of zero elevation scale is to be reckoned in while measuring target elevationreference (ER “0”). Proceed as
under 8.6.1.
| 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 carring out the maintenance services, observe the safety precautions as outlined in Section 6.