Section IV. TROUBLESHOOTING - TM-9-6650-235-13-P0042

ARMY

*TM 9-6650-235-13&P

MARINE CORPS

TM-08552A-13&P

Section IV. TROUBLESHOOTING

to the troubleshooting table where a test or inspection

5-8. TROUBLESHOOTING.

and corrective action are provided.

a. Troubleshooting is the systematic isolation of

c. The troubleshooting table lists the common

defective components by means of symptoms, tests, or

malfunctions which you may find during the operation or

inspections. The troubleshooting procedure described in

maintenance of the M3 Borescope. You should perform

the following section is one of determining upon

the tests or inspections and corrective actions in the

occurrence the malfunction, reviewing the probable

order listed.

cause, then taking the necessary corrective action.

d. This manual cannot list all malfunctions that may

b. The symptom index can be used as a quick

occur, nor all tests or inspections and corrective actions.

guide to troubleshooting. Common malfunctions are

If a malfunction is not corrected by listed corrective

listed in alphabetical order with a page number reference

actions, or is not listed in the troubleshooting table, notify

your supervisor.

SYMPTOM INDEX

Troubleshooting

Procedure

(Page)

ASSEMBLED M3 BORESCOPE

M3 Borescope components will not remain together ..........................................................................

5-8

ELECTRICAL SYSTEM

Lamp in illuminating head assembly or blind illuminating head

assembly is too bright or too dim..................................................................................................

5-7

Lamp will not illuminate in illuminating head assembly or blind

illuminating head assembly ..........................................................................................................

5-5

115-V lamp illuminates, but 24-V lamp does not ................................................................................

5-8

24-V lamp illuminates, but 115-V lamp does not ................................................................................

5-7

LENSES

Distorted image is seen through M3 Borescope .................................................................................

5-4

5-3