Table 4-2. Monthly Preventive Maintenance Checks and Services.

TM 11-6625-937-12

Table 4-1. Daily Preventive Maintenance Checks and Services. - Continued

Sequence

Item to be

inspected

Procedure

FUNCTION switch............................

Set to INT BAT. Meter indication is in GOOD area of BAT

TEST scale (para 3-3c).

SAFETY SW switch (ID-1189/PR only)

With FUNCTION switch set to INT BAT., press SAFETY SW

switch and note that meter pointer moves to no indication.

Return FUNCTION switch to OFF.

Safety switch actuator (ID-1189/PR

Check actuator for positive spring action.

only)................................ .................

Battery and RECEIVER ALIGNMENT

Check external surfaces to see that the adapters are clean,

adapters.

dry and free of dirt. Operate SQUELCH ON switch to be

certain action is positive.

Table 4-2. Monthly Preventive Maintenance Checks and Services.

Sequence

Item to be

inspected

Procedure

Breather valve core..........................

Press button for positive action (para 2-1c).

Rear and forward case latches.........

Check for positive locking and unlocking action (para 2-1c).

ID1189/PR ................................ .......

See that equipment is complete.

Meter glass ................................ ......

Check to see that glass has no cracks.

TEST, PROBE, and RCVR OUTPUT

Check to see that cables are free of cracks, and plugs are not

cables and plugs............................

bent or damaged.

XMTR, BAT, and RCVR BAT.

Check to see that receptacle pins are not bent or damaged

receptacles................................. ...

Internal battery compartment

Remove internal battery and check compartment to see that it

(ID-1189/PR only)..........................

is clean and dry and that the cloth tape is not frayed or

broken (para 2-3).

Screwdriver and alignment tool ........

Check blades to see that they are straight and square.

Instruction plates..............................

Check to see that plates are free of cracks and readable.

RECEIVER ALIGNMENT adapter ....

Examine to be sure connector probes are clean, straight, and

all cables are free of cracks.

Publications................................ ......

See that all publications are complete, serviceable, and

current.

Modifications ................................ ....

Check DA Pam 310-7 to determine if new applicable MWO's

have been published. All URGENT MWO's must be applied

immediately. All NORMAL MWO's must be scheduled.

4-3. Cleaning

Inspect the exterior surfaces of the ID-1189/PR, including the case, inside the lid, and the top plate assembly.

a. Remove dust and loose dirt with a soft, clean cloth or a soft brush.

WARNING

The fumes of TRICHLOROETHANE are toxic. Provide thorough ventilation whenever it is

used. Avoid prolonged or repeated breathing of vapor. Do not use near an open flame or

hot surface, trichloroethane is nonflammable but heat converts the fumes to a highly toxic

phosgene gas the inhalation of which could result in serious injury or death. Prolonged or

repeated skin contact with trichloroethane can cause skin inflammation. When necessary,

Change 2

4-2