TM 10-5410-224-14
Table 4-1. Direct and General Support Maintenance Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
CENTER STRUCTURE CEILING LIGHTS FAIL TO COME ON.
Step 3. Check circuit breaker CB6 and switch S2.
Repair or replace defective item (para. 4-15).
LEFT CEILING LIGHTS FALL TO COME ON.
Step 4. Check circuit breaker CB8 and switch S3.
Repair or replace defective item (para. 4-15).
EMERGENCY (INTERIOR) LIGHT FAILS TO COME ON.
Step 5. Check circuit breaker CB9 and switch S4.
Repair or replace defective item (para. 4-15).
NO POWER AT ONE OF THE ECU RECEPTACLES.
Step 6. Check associated circuit breaker CB2 or CB3.
Repair or replace defective circuit breaker (para. 4-15).
NO POWER AT ONE OF THE GROUPS OF UTILITY OUTLETS.
Step 7. Check associated circuit breaker CB10, CB11, CB12, or CB13.
Repair or replace defective circuit breaker (Para. 4-15).
NO POWER AT ONE OF THE EXTERIOR OUTLETS (EXTERIOR LIGHT).
Step 8. Check associated circuit breaker CB5 or CB7.
Repair or replace defective circuit breaker (para. 415).
VENTILATION FAN FAILS TO OPERATE.
Step 9. Check circuit breaker CB14 and appropriate switch S5 or S6.
Repair or replace defective item (para. 415).
GENERAL RIVET AND INSERT REPAIR
Section III.
4-6. General.
(3) Hold riveter at right angle to work. Push
riveter against work with just enough force to firmly
This section provides maintenance personnel with
seat rivet and to aid in avoiding sheet or other part
general repair and replacement instructions ap-
separation.
plicable to rivets and inserts used in the expandable
(4) Pull rivet until stem breaks.
shelter.
(5) Trim the broken stem flush with the rivet
head.
4-7. Blind Type Rivet Replacement.
a Removal. Rivets which are damaged or used
(6) Firmly press on the installed rivet to assure
tightness.
for securing a replaceable part shall be removed as
follows:
4-8. Insert Replacement.
(1) Drill through the center of the rivet. Use a
a Removal. Insert which are damaged shall be
drill bit with the same diameter as the original rivet
removed as follows:
hole. The drill must be held perpendicular to the sur-
(1) Use a drill with the same size as the original
face to prevent enlargement or damage to the existing
potting hole, and drill out the insert.
hole. Drill through just deep enough to sever the rivet
(2) Remove loose particles from the hole using a
head from the shank.
compressed air blast of clean air.
(2) Remove any remaining rivet with a pin punch
b. Potting Compound Mixing and Applica-
and remove any burrs from rivet hole.
tion. The potting compound, BMS 200067 shall be
b. Rivet Replacement. Select a rivet of the
mixed for use with BN532 Series inserts. Mix and
proper diameter and length and install as follows:
apply as follows:
(1) Hold parts to be riveted tightly together with
(1) Mix the potting compound according to the
clecos, clamps or other satisfactory method.
manufacturer's instructions.
(2) Insert proper rivet in hole and apply with
(2) Immediately after mixing, fill the hole with
hand meter by inserting stem head of rivet in bottom
potting compound. Make sure that the hole is com-
slot in appropriate nose piece.
pletely filled and free of air pockets.
c. Installation of BN532 Series Inserts. Install
NOTE
the new insert as follows:
Wet all rivets with sealant MIL-S-8802
(1) Perform potting compound mixing and ap-
before installation.
plication procedure given in paragraph 4-8b.
