Creation: 01.31 - 2014
1-2-2
GPU - 406
(c) Engine Lubricating Oil
The oil level should be at the full mark on the dipstick. See the engine manufacturer’s
manual (Chapter 5) for oil recommendations.
(d) Air Cleaner
The air cleaner is a permanent dry type with a replaceable filter element. Check to ensure
there are no papers, tape, or other material covering the air inlet.
(e) Diesel Exhaust Fluid (DEF) – Tier 4 Final Engine Only
The DEF level should be near 100% as indicated on the generator controller DEF Level
gauge. If it is necessary to replenish the DEF, refer to page 2-1-10 for instructions.
B. Installing Output Cables
Units are generally shipped with an aircraft cable assembly. Follow the instructions below if the GPU
does not have factory-installed cables.
(1) Three-phase AC Aircraft Cable Assembly Installation (#1 Output)
The #1 output contactor is located at the left rear of the electrical box.
(a) Loosen the cable clamp and connect the loose ends of the cable assembly to the #1 output
contactor.
NOTE:
When DEF level falls below 2.5% of the maximum capacity,
engine power output will be reduced to comply with emission
regulations. This may cause an interruption in power delivery to
attached aircraft.
NOTE:
If the aftertreatment system on a unit equipped with a Tier 4 and
has ECM firmware version GA80044.03 or higher, the unit will
lock to idle speed. In order to clear the fault, the unit must run for
15 mintes after the fault condition has been resolved.
NOTE:
For antifreeze protection, use a solution of 50% long life
antifreeze (ethylene glycol) and 50% distilled water.
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