Harrington Generators International
38
HRD Diesel Generator
498-1052
Maintenance
Correct sealing / fi tting of exhaust pipe
: Remove
the front panel and check the silencer and exhaust
pipe is correctly
fi
tted and sealed at its mounting
fl
ange with no signs of blowing.
Lifting Points
: Inspect the lifting points for obvious
signs of wear, damage or distortion.
Signs of Over Heating
: Look for obvious
deterioration due to heat and investigate the cause
and rectify as necessary.
Fuel Cap
: Check the cap seals correctly. Check for
obvious signs of fuel spillage.
Electrical:
•
Inspect sockets, and replace if damaged or
contact pins are burnt.
•
Check all wiring is secure and not damaged.
•
Check the output voltage and frequency are
correct.
•
Check the earth continuity between the socket
earth pins and the generator frame.
Run on ¼, ½, ¾ then full load
Operating the generator at low load levels for
extended periods can result in high levels of carbon
build up in the engine and exhaust system which can
lead to excessive smoking, reduced ef
fi
ciency and
overheating. Looking at the silencer’s outlet will give
some indication this has happened.
After each service the generator should be run
fi
rst
on ¼, then ½, then ¾ and
fi
nally full load using a
load bank or a similar load like an electric fan heater,
to burn out any deposits of soot in the engine and
silencer.
Each level of load should be applied for at least
10 minutes or until the exhaust is clear of soot and
smoke. If you suspect the engine is badly sooted, DO
NOT apply full load but build the load up gradually.
It should be anticipated that hot soot will be expelled
from the engine during this procedure and it should be
done in a safe place away from combustible material
and under supervision at all times.
