Table 2-1. Preventive Maintenance Checks and Services for Model M992A1
C r e w m e m b e r
Not Fully Mission
S y s t e m
A functional check of the glow plug
system must be performed whenever
operation in ambient temperatures
below 50°F (5.5%) is anticipated
and after any maintenance is
performed on the glow plug system.
a. Turn MASTER switch to ON.
b. Position GLOW PLUG switch
to ON, then release.
c. If temperature is 50°F (5.5%) or
c. GLOW PLUG
above, the GLOW PLUG lamp will
lamp does not light
light for one second, then go off.
or go off.
d. If temperature is below 50°F
d. GLOW PLUG
(5.5°C) the GLOW PLUG lamp will
lamp does not light,
light for 35 seconds, flash on and off
flash, or turn off.
for a minute, and then go off.