Table 4-2. Troubleshooting, Aviation Unit

TM 55-4920-411-13&P

malfunction and cause are obvious), or is not corrected

Temperature and Speed Simulator or its components.

You should do the tests/inspections and corrective

by listed corrective actions, you should notify higher

level maintenance.

actions in the order listed.

c. Table 4-2 lists the common malfunctions that you

may find during the operation or maintenance of the

Table 4-2. Troubleshooting, Aviation Unit

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

POWER INDICATING LAMP DOES NOT GO ON WITH SIMULATOR PROPERLY CONNECTED AND

POWER AVAILABLE.

Step 1. Place POWER switch (S1) ON. Power indicating lamp should go on.

a. Replace 1/2A fuse.

b. Replace power indicating lamp.

c. Send simulator - to higher maintenance.

LAMPS L1 THROUGH L6 DO NOT TO ON WITH LAMP TEST SWITCH PRESSED.

Step 1. Press LAMP TEST switch Lamps L1 through L6 should go on.

a. If lamps do not go on send simulator to higher maintenance

SECONDS DISPLAY DOES NOT OPERATE WHEN START/STOP RESET BUTTON IS PRESSED.

Step 1. Press START/STOP RESET button. SECONDS counter should step through 99 then reset to 00

and continue counting.

a. If SECONDS counter does not operate, send simulator to higher maintenance.

b. If only one side of SECONDS counter does not operate, replace malfunctioning .

Section III. REPAINTING AND REFINISHING INSTRUCTIONS

equipment is readily available prior to use.

4-4. Cleaning Instructions.

Observe all cautions and warnings on

a. Remove dust and loose dirt with a clean, soft

c o n t a i n e r s when using consumables.

cloth, item 5, App. D.

When applicable, wear necessary protec-

tive gear during handling and use. If a

b. Remove grease, fungus and ground-in dirt with

consumable is flammable or explosive,

cloth dampened with dry-cleaning solvent, item 4, App.

MAKE CERTAIN consumable and its

vapors are kept away from heat, spark,

and flame. MAKE CERTAIN helicopter.

c. Remove moisture with a dry cloth.

is properly grounded and firefighting