Figure 3-10. Pen, disassembled.

TM 11-6660-204-25

(12) Replace the panel lamp assembly and

object. The ball may move off the paper

tighten the setscrews to secure the panel lamp

and get lost. Use brass tweezers to han-

assembly.

dle the ball.

c. Resembling Pen (fig. 3-10).

3-11. Clean, Lubricate, and Tighten

(1) Be sure that all parts of the pen are

Internal Recorder Components

thoroughly dry.

a. Unlatch the frequency time recorder and pull

(2) Drop the ball into the nib.

it out of its drawer.

(3) Insert the jeweled end of the sleeve as-

sembly into the nib and gently tighten the screw

b. Open the recorder window and remove the

until the ball will not turn.

chart (figs. 32 and 3-11 ).

(4) Turn the sleeve-holding screw back one-

c. Remove the slide-wire cover.

eighth to one-quarter turn.

d. Using a small soft brush, electric blower, or a

(5) Screw the penpoint assembly into the ink

vacuum cleaner, carefully clean the slide and trol-

barrel.

ley wires, the chart roller, pen and pen carriage,

(6) Fill the pen by holding it in the left hand

chart guide rods and the recorder scale. Use a lint

at a 45 angle, insert the spout of the ink tube

free cloth and alcohol to remove any ink deposits

into the pen barrel until the spout touches bottom.

on the pen, pen carriage, or pen carriage shaft.

Squeeze the tube until the barrel is three-fourths

Operate the manual chart advance knob, as re-

full of ink, Remove the spout.

quired, to gain access to all parts of the chart

(7) Place the rubber washer on the pen cap

roller.

and screw the pen cap into the ink barrel.

e. Using a pin or toothpick, apply one drop of

(8) Place the pen on the pen carriage and

light low temperature machine oil to the oilholes

tighten the setscrew (fig. 39). Be sure the ink

in the ratchet wheel hubs of the multiple speed

barrel is in a vertical position.

recorders (figs. 31 and 33). Rotate the manual

(9) Remove the pen cap from the ink barrel.

chart advance knob three turns to circulate the

lubricating oil.

(10) Place the pen heater (fig. 3-9) on the

ink barrel.

f. Tighten the chart guide collars (fig. 3-2),

(11) Screw the pen cap into the ink barrel.

chart drive motor mounts, and all panel knobs.

6660-204-25-32

Figure 3-10. Pen, disassembled.

3-11