TM 10-7310-281-13&P
MODERN BURNER UNIT (MBU)
0005 00
OPERATION UNDER USUAL CONDITIONS
0005 00-22
Table 1. MBU Fault Indicators
Indicator - color
Indicator Normally Lit
If Lit
Before
Operation
If Lit While MBU Is
Operating
If Lit After
Automatic
Shutdown
WARMUP - amber
First two minutes of
MBU operation.
N/A
Normal first two
minutes of
operation, abnormal
after two minutes.
N/A
RUN - green
After two minutes of
operation. WARMUP
indicator tuns off at the
same time.
N/A
Abnormal first two
minutes of
operation, normal
after two minutes.
N/A
FUELING/FULL
(green)
blinking/steady
When fuel tank is
filling/full.
N/A
N/A
N/A
LOW FUEL –
indicators light as
follows:
After approximately 3
hours of operation, and
for ½ hour thereafter, for
the times indicated:
- green (blinking)
For 15 minutes
- amber (blinking)
For 7-1/2 minutes
- red (blinking)
For 7-1/2 minutes
- red (steady)
On MBU shut-down,
hour from when LOW
FUEL initially blinked
green.
Fuel tank needs to be filled.
NOTE!
If the MBU is manually shut down while the Low
Fuel indicator is lit, it will not restart until it is
refueled.
VOLTAGE (red)
At an automatic
shutdown when supply
voltage falls to less than
22 V DC or greater than
29.5 V DC.
Check
power
source for
proper
operation.
N/A
Check power
source for
proper
operation..
SERVICE (red)
Troubleshoot the problem (WP 0009). Attempt a
re-start of MBU.
HOUR METER
BACK LIGHT
-green
When power is on.
N/A
N/A
N/A
