User's Manual
control panel
Figure 6 shows the location of the controls and indicators 
on the LT6D control panel. Below is a breif description of 
each component.
1.  — A double-pole 50 
amp circuit breaker which protects the 120/240 VAC 
twist-lock receptacle from overload. In addition it allows 
voltage to be supplied to the light circuit breakers (CB2/
CB3), and GFCI breaker (CB4).
2.  — This dual 
voltage twist-lock receptacle provides 240 VAC @ 25 
amps or 120 VAC @ 25 amps X2.
3.  Panel Light — When the cabinet door is raised, the 
light will automatically come on. When the cabinet door 
closes, the switch is depressed and the light turns off.
4.  — This digital hour meter indicates the 
number of hours machine has been in use.
5.  — Single pole, 20 amp circuit 
breaker, turns on bottom lights.
6.  — Single pole, 20 amp circuit 
breaker, turns on top lights.
7.  — Provides 120 VAC @ 15 amps.
8.  — Single-pole, 15 amp 
circuit breaker, protects GFCI receptacle from overload.
9.  — Displays engine status via 
LEDs. Perform engine maintenance depending on alarm 
status.
10.  — This alarm 
LED (green) lights when the engine is 
functioning normal.
11.  Oil Pressure Alarm Indicator — This alarm 
LED flashes when the oil pressure has fallen 
too low for normal engine operation. The LED 
will stay on until the problem is corrected.
OK
12.  Water Temperature Alarm Indicator — 
This alarm LED flashes when the water 
temperature becomes too hot for normal 
engine operation. This condition will shut 
down the engine. The LED will stay on until 
the problem is corrected.
13.  Alternator Alarm Indicator — This LED 
turns on when the engine has shut down 
because the electrical charging system is 
not working properly.
14.  PreHeat Indicator — This LED turns on 
when the ignition key is turned to the ON 
position indicating that the glow plugs are 
warming up. When the LED goes off, the 
engine is ready for starting. If the LED is 
flashing, a low battery charge is detected.
15.    — Insert key into 
ignition switch and turn clockwise to the  
position to warm the glow plugs. When 
pre-heat indicator light goes OFF, turn the 
key to the START position. Release key 
when engine starts.
16.  Air Filter Alarm Indicator —  This  LED 
flashes when a blockage or problem with 
the air filter is detected.










