General

TM 11-5815-206-12/ TO 31W4-2PGC1-61

2-5. General

access window of the dust cover, release the figure

shift crank, and move the platen lock lever to the

a. Positioning

Teletypewriter.

Set the

right to release the platen. Close the access

teletypewriter on a table or any raised, flat surface

window.

high enough for convenient operation of the

keyboard, preferable a surface that permits knee

space for the operator. If no suitable table or other

operating

surface

is available,

set the

teletypewriter on its case (fig. 1-1). When the

teletypewriter is transported to the installation site

by packboard (fig. 1-1) and the case is not

available, remove the immersionproof cover, lash

the teletypewriter to the packboard, and set the

packboard on any suitable supporting surface.

b. Installing Recording Paper and Inking

Ribbon. Install a roll of recording paper (para 3-5)

and a spool of inking ribbon (para 3-6).

c. Checking Fuses, See that a good 1/8-ampere

fuse is in the LINE FUSE holder, as shown in

figure 3-1. The MOTOR FUSE fuseholder of the

TT-4(*)/TG and TT-698(*)/TG requires a good

1.6-ampere fuse. The HTR FUSE fuseholder of the

TT-335/TG and TT-537/TG requires a good 3-

ampere fuse. See that a good spare line fuse and

motor fuse are installed in the spare-fuse clip on

the cover of the transmitter mechanism (fig. 1-9).

2-6. Unlocking Locking Devices

a. Blocking Plate. A blocking plate is provided

(on all models except TT-4A/TG and TT-698/TG)

to lock the carriage-return driving gear firmly in

place during shipment, Remove the two self-

locking hexagonal nuts, set the blocking plate to

the position shown in B, figure 2-2, and replace the

nuts.

b. Platen Lock (TT-4(*)/TG, TT-335/TG, and

TT-698(*)/TG (fig. 1-9). The platen lock is used to

lock the platen during transportation of the

teletypewriter. To unfasten the platen lock, loosen

the wingnut at the right-hand end of the platen,

turn the locking lever counterclockwise until it

clears the movable parts of the platen assembly,

and tighten the wingnut.

c. Platen Lock ( TT-537/G) (fig. 2-3). The platen

Figure 2-2. Blocking plate arrangements

lock is used to lock the platen in the letters-shift

(all models except TT-4A/TG and TT-698/TG).

during

position

transporation of

the

teletyprewriter. To unlatch the platen, open the

2-4