Table 3-1 . Organizational Preventive Maintenance Checks and Services Semiannual Schedule

TM 11-7025-210-23

Table 3-1 . Organizational Preventive Maintenance Checks

and Services Semiannual Schedule -- Continued

Item

Item To Be

Equipment Will Be

No.

Inspected

Procedures

Reported Not Ready/

Available if

6. Moving three platen gears

manually, clean with soft

bristle brush and FREON-TF.

7. Vacuum dirt from beneath

gears.

Lubricate platen drive gears by

lightly coating gear teeth with

grease.

Print Mechanism

Check condition of forms

Gear slips because of

Tractor Drive

tractor drive gear. Clean

dirt, cracks, or

Gear

by removing dried grease and

wear.

dirt from gear with clean

lint-free cloth and FREON-TF.

Print Mechanism

Check tension of VFU drive

VFU belt tension

VFU Drive Belt

belt.

does not meet

specifications.

1. Using belt tension gauge,

apply a force of 2 oz.

(57g) to the center of

bottom belt span.

2. Using machinist's rule,

check deflection of belt.

It should measure 0.07-

0.13 inches.

Print Mechanism

Check condition of friction

Brake slips because

Friction Brake

brake as follows:

of excessive wear on

hub and/or damage to

1. Push in platen knob and

compression springs.

turn slightly back and

forth.

2. If drag is too light or

Hubs worn or compres-

missing, the hubs are

sion springs sprung.

worn or compression

springs sprung.

Lubricate friction brake by

Brake binds.

applying one drop of oil to

each end of hub.

3-7