TM-9-2330-335-14-P
SEMITRAILER, TACTICAL, BREAKBULK/CONTAINER TRANSPORTER, 22-1/2 TON, RESET M871R, M871A1R AND M871A2R
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE MANUAL (INCLUDES REPAIR PARTS AND SPECIAL TOOLS LIST)
SEPTEMBER 2008
TM-9-2330-335-14-P - Page 534 of 640
TM 9-2330-335-14&P
0093-2
0093
TIPS TO PROLONG LIGHTING LIFE - CONTINUED
NOTE
Test all lamps one more time before you discard them. Up to 20 percent of lamps discarded are still
in good operating condition.
4.
Open the lens on a discarded lamp and examine the bulb.
a.
A bulb with stretched or broken filaments was subject to vibration.
b.
A yellowish, whitish, or bluish glaze on the bulb indicates a rupture in the bulb glass envelope, and a possible leak.
c.
A dark metallic finish indicates old age.
d.
A black, sooty bulb indicates a poor seal in the bulb.
5.
Lubricate sockets, pigtails, battery terminals, and connections with non-conductive anti-corrosion compound to protect
against corrosion and water.
6.
Look for loose, bare, or unsupported wiring and fixtures. Harnesses and wiring should be on the underside of the top
frame members rather than on the bottom where dirt and road splash collect.
7.
You should never crank a truck when any lights or accessories are on. Also, never leave markers and hazard lights on
when parked against a dock. Melted lenses are a sure sign that the vehicle has been parked against a dock while the lights
were on.
8.
Inspect the grommets that house the lamps. As they age, they eventually will deteriorate from sunlight, ozone, and
harmful chemicals. New grommets restore shock protection, security, and improve appearance.
END OF WORK PACKAGE
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