TIME TOTAL METER DOES NOT WORK

TM 5-2420-222-20-1

ORGANIZATIONAL TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

23. TIME TOTAL METER 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.

Step 1. Using multimeter set to R x 1 scale, place red probe on time total meter black wire terminal (1) and black

probe on cowl support (2). Check for 0 ohm on multimeter.

a. If multimeter reads 0 ohm, go to step 2.

b. If multimeter reads more than 0 ohm on loader backhoes with Serial Numbers 235786 thru

235999, replace time total meter lead (page 2-510).

c. If multimeter reads more than 0 ohm on loader backhoe with Serial Numbers 319995 thru

342573, repair black wire between time total meter terminal (1) and connector (3) (page 2-137).

Step 2. Turn ignition lock switch (4) clockwise to ignition. Using multimeter set to 30 vdc scale, place red probe on

time total meter orange wire terminal (5) and cowl support (2). Check for 11 to 13 vdc on multimeter. Turn

ignition lock switch (4) counterclockwise to off.

a. If multimeter reads 11 to 13 vdc, replace time total meter (page 2-510).

b. If multimeter reads less than 11 vdc, repair orange wire in main and front light wiring harness

24. PARKING BRAKE WARNING LIGHT ON LOADER BACKHOES WITH SERIAL NUMBERS 319995 THRU 342573

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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