Section Il. TROUBLESHOOTING - TM-11-7035-203-230022

TM 11-7035-203-23

4-3. SPARES AND REPAIR PARTS

Refer to TM 11-701O-2O3-23P for a complete listing and description of spares and

repair parts required for direct support maintenance of this equipment.

Section Il. TROUBLESHOOTING

4-4. GENERAL

The most effective way to troubleshoot a fault in this equipment is to follow a

routine which guides you through the five phases of troubleshooting (fig. 4-l). By

following this routine you assure accurate use of fault isolation and fix

procedures. You also improve your troubleshooting skills.

4-5. TROUBLESHOOTING PHASES

Each of the five phases in this routine is designed to accomplish a specific goal.

a. Fault Discovery. Usually, the operators or supervisor will notice faulty

performance first. They must report the fault on the proper form so you will have

the facts you need for the next phase.

b. Failure Confirmation. Based on the facts provided, you must confirm the

failure and define the symptom. The symptom is the first clue you will use in the

troubleshooting process.

c* Troubleshooting Entry. Using the symptom defined during phase two, find the

troubleshooting flow chart which will help you isolate the fault in the equipment.

The checkout and symptom index chart (chart-00) will help you do this.

d. Trouble Isolation. Follow the step-by-step procedures in the flow chart to

isolate and correct the cause of the equipment failure.

e. After Maintenance. When you have made the fix recommended in the trouble-

shooting procedure, you must check your work. Use the chart titled After

Maintenance Check. It tells you how to test your repair and make sure the

equipment now works as it should.

4-2