Figure 4-2. Desiccant container, disassembly and assembly.

Figure 4-1. Carrying case assembly, disassembly and assembly.

Section VII. MAINTENANCE OF CANVAS FIELD PACK

TM-5-6675-270-15 Theodolite Directional 0.2 Mil Graduation; 5.9 In. Long Telescope W/Accessories (Wold Heerburg Models) Manual
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47

(6) Straighten all minor dents or bends in

4-15. Disassembly

the hood. Seal all cuts or holes in the hood by

a. Hood. Refer to figure 4-1 and disassemble

brazing. Smooth out the brazed area and repaint

the hood.

where necessary.

b. Base. Refer to figure 4-1 and disassemble

(7) Replace all unserviceable parts with

the base.

serviceable parts.

c. Desiccant Container. Refer to figure 4-2

b. Base (fig. 4-1).

and disassemble the desiccant container.

(1) Clean all metal parts with a cleaning

4-16. Cleaning, Inspection, and Repair

solvent and dry thoroughly. Be sure that all

a. Hood (fig. 4-1).

threaded surfaces are brushed free of any foreign

(1) Clean all metal parts with a cleaning

matter. Wipe the rubber washer clean with a soft

solvent and dry thoroughly. Clean the carrying

cloth.

strap with saddle soap or other approved leather

(2) Inspect all threaded surfaces for worn or

cleaner.

damaged threads. Inspect the hooks, hook springs,

(2) Inspect the carrying strap for cuts,

and washers for burs, bends, dents, and worn sur-

cracks, and breaks. Inspect for worn mounting

faces. Inspect the base for cracks and broken

holes and deterioration due to age and wear.

casting. Inspect the metal collar for bends,

(3) Inspect the lever pins for burs and wear.

breaks, and out-of-round. Inspect the rubber

Inspect the locking hooks and hook springs for

washer to see whether it is damaged or hardened

burs, bends, and cracks.

because of age or excessive heat.

(4) Inspect the hood for dents, cracks, and

(3) Remove all bus from the base, studs,

holes. Inspect the bottom rim for out-of-round.

hooks, hook springs, and metal collar. Straighten

(5) Remove all burs from hook pins, locking

minor bends in the collar and washers. Replace

hooks, and hook springs. Straighten all minor

all defective parts.

bends. Remove any trace of rust; paint where

c. Desiccant Containor (fig. 4-2).

necessary.

(1) Clean all metal parts with a cleaning

solvent and dry thoroughly.

(2) Inspect the window and screen for

cracks and breaks. Inspect the three sections of

the container for bends, breaks, and damaged

threads.

(3) Inspect the desiccant for residual ca-

pacity. Satisfactory desiccant is blue in color.

(4) Replace desiccant that is pink in color

or dehydrate it.

(5) Replace all unserviceable parts of the

container with servicesble parts.

4-17. Assembly

a. Hood. Refer to figure 4-1 and assemble the

hood.

b. Desiccant Container. Refer to figure 4-2 and

assembly the desiccant container.

c. Base. Refer to figure 4-1 and assemble the

base.

4-18. Installation

ME 6675-270- 15/4-2

a. Base. Install the theodolite on the base (fig.

1 Upper container

3 Desiccant

2-9).

2 Inner container

4 Lower container

b. Hood. Install the hood on the base (fig. 2-1).

Figure 4-2.

Desiccant container, disassembly and assembly.

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