CHAPTER 4 DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS

TM 9-1220-238-14

CHAPTER 4

DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

INSTRUCTIONS

Section I. GENERAL

d. Frame Assembly (fig. 1-1). Fill lines and

4-1. Scope.

figures of 6400 MIL scale flush with finished surface

This chapter contains specific instructions for the

Color white, type I filler, TT-F-325.

disassembly, repair, assembly, test and adjustment of

e. Scale (fig. 1-1). Fill lines and figures color

board plotting M18 and associated equipment. For

white, type I filler, TT-F-325

description and data refer to Chapter 1

f. Anchor (fig 1-1) Semigloss enamel TT-E-529,

Note This manual contains exploded views

color black, 27038, FED-STD-595

which depict complete disassembly of the board

g. Knob (fig. B-2-2) Mahogany stain, TT-S-711

plotting M18 and partial disassembly of the plotting

h. Disk (fig B-2-5). Semigloss enamel, TT-E-529,

board chest This should not be construed as

color black, 27038, FED-STD-595

authority to disassemble the materiel beyond that

i. Metal Components Touch up and/or paint olive

required to perform operations authorized in the

drab components of plotting board and chest with TT-E-

Maintenance Allocation Chart (MAC) in Appendix C

529, alkyd semigloss enamel, color 24087, FEDSTD-

or to replace parts other than authorized in the

595.

applicable columns in Appendix B, Repair Parts List

j. Lettering Stencil gothic lettering on outside of

chest with TT-E-529, color black, 27038, FED-STD595.

4-2. Replacing Parts.

Stencil gothic lettering on platform assembly and foam

In subsequent paragraphs it is understood that

insert in bottom corner of chest body with TT-E-529,

authorized parts damaged or worn beyond repair are to

color white, 27875, FED-STD-595 (fig B-9).

be replaced and that necessary repairs within the

capability of the shop to which the materiel is referred

4-7. Bonding.

will automatically be accomplished, i.e., straightening,

a. Bonding is to be accomplished only as required.

removal of burrs, dents, scratches, rust and providing

All surfaces must be free of contaminants before

proper paint finishes.

application of the proper adhesive to the specific rubber

and foam components noted in the following

4-3. General Maintenance Procedures.

paragraphs.

TM 9-254 presents general maintenance procedures

b. Apply adhesive MMM-A-1617 to mounting

that are often encountered in preparing fire control

surfaces of all rubber material This includes the pad on

materiel. These procedures are presented as guides to

the rest bracket assembly of the plotting board and all

maintenance personnel in the performance of their

pads, packing and inserts in the plotting board chest.

duties.

(figs. B-1 and B-9).

c. Apply adhesive 10559167 to mounting surfaces

4-4. Special Tools and Equipment.

of all foam inserts, pads and holders In the carrying

No special tools or equipment are required or

chest.

Adhesive must be applied to nondensified

authorized for plotting board M18 or equipment.

surfaces of foam material. (fig B-9).

4-5. Troubleshooting.

4-8. Staking.

Refer to Chapter 3, Section V

a. Components listed require staking if removed

and/or adjusted. Unless otherwise stated staking shall

4-6. Painting.

be in one place.

a. The finishes of selected components are

b. Stake screws (7 and 7(10)) and (13) of arm

provided to facilitate touchup and/or painting of such

assembly (6) in two places at threaded ends (fig B-2).

components caused by frequent handling and exposure

c. Insert screw (8) in slide assembly (23) and stake

to the elements and are to be applies only as required

bottom of screw (fig. B-6).

b. Plotting Disk (fig. 1-1). Fill lines flush with

d. Stake both ends of pin (19) in shoe assembly

surface Color black, type I filler, TT-F-325.

(18). Shoe (20) must be free to pivot at assembly (fig B-

c. Vernier Scale (fig. 1-1). Fill lines and figures.

6).

Color white, type I filler, TT-F-325.

4-1