REVERSE WARNING ALARM DOES NOT WORK

TM 5-2420-222-20-1

ORGANIZATIONAL TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

27. CIGAR LIGHTER DOES NOT WORK - CONTINUED

WARNING

Although ignition lock switch must be on and battery ground cable connected to test electrical circuit

voltage, turn off ignition lock switch and disconnect battery ground cable before doing resistance tests or

replacing parts. This will keep you from getting shocked and prevent damage to parts and equipment.

Step 3. Turn ignition lock switch (1) counterclockwise to accessory. Using multimeter set to 30 vdc scale, place red

probe on cigar lighter lead terminal (2) and black probe on cowl support (3). Check for 11 to 13 vdc on

multimeter. Turn ignition lock switch (1) clockwise to off.

a. If multimeter reads 11 to 13 vdc, go to step 4.

b. If multimeter reads less than 11 vdc on loader backhoes with Serial Numbers 235786 thru

235999, repair cigar lighter black lead wire (page 2-137).

c. If multimeter reads less than 11 vdc on loader backhoes with Serial Numbers 319995 thru

342573, repair cigar lighter purple lead wire (page 2-137).

Step 4. Turn ignition lock switch (1) counterclockwise to accessory. Pull cigar lighter element (4) out of cigar lighter

(5). Using multimeter set to 30 vdc scale, place red probe on cigar lighter center contact (6) and black probe

on cowl support (3). Check for 11 to 13 vdc on multimeter. Turn ignition lock switch (1) clockwise to off.

a. If multimeter reads 11 to 13 vdc, replace element (4) and push it back into cigar lighter (5).

b. If multimeter reads less than 11 vdc, replace cigar lighter (page 2-619).

28. REVERSE WARNING ALARM DOES NOT WORK

WARNING

Although ignition lock switch must be on and battery ground cable connected to test electrical circuit

voltage, turn off ignition lock switch and disconnect battery ground cable before doing resistance tests or

replacing parts. This will keep you from getting shocked and prevent damage to parts and equipment.

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