MAINTENANCE PROCEDURES

TM 9-8140-381-14&P

2-9.

UNLOCKING

2-11. INSPECTION

Unlock in accordance with paragraph 1-6a(1) thru (4).

Table 2-1 provides semi-annual inspection criteria and

actions to be taken whenever defects are noted on lock.

2-10.

LOCKING

Lock in accordance with paragraph 1-8a. thru f.

TABLE 2-1.

SEMI-ANNUAL INSPECTION OF LOCKING DEVICE

INSPECTION

ACTION TO BE TAKEN

Code wheels do not rotate easily

Replace lock (par. 2-13).

Markings illegible

Lock not securely installed

Tighten mounting screws.

Protective cover or spring

Replace screws if necessary (par. 2-13).

missing, damaged, or defective

Replace lock (par. 2-13).

2-12.

MAINTENANCE PROCEDURES

NOTE

Refinishing Markings. If indexing marks on base or

WSC's are initially supplied with two locking devices

code wheels become illegible, filler should be reapplied.

unmounted. Procedure below covers installation of

Clean indexing marks with a pointed instrument to

combination lock. Follow reverse procedure when

remove old filler. Wipe clean with a cotton-tip applicator

removing locking device.

or cloth saturated with cleaning compound, then dry

thoroughly. Apply black opaque filler, crayon type or

It is recommended that two persons be used to

suitable substitute to engraved surface.

Remove

replace the locking device.

excess filler from adjoining surface with cloth allowing

filler to remain only in indented engraved surface. Allow

to air dry 1 hour before use of locking device.

2-6