PS Magazine - TB 43-PS-739
PS, The Preventative Maintenance Monthly
ISSUE 739
JUNE 2014
50
PS 739
JUN 14
Heat and the 5-kW TQG
Also inspect the
air intake ducts, exhaust ducts
and
air cleaner
for dirt and debris.
A clogged air intake or cleaner chokes off air to the engine, making it work harder.
The results are overheating and shutdown. Remove clogs from the ducts. Check the air
cleaner’s restriction indicator. If it’s in the red, the air cleaner element is clogged. Clean
the element with compressed air. Replace it if necessary. Inspect the air cannister. If it
has dirt and debris, clean it with a lint-free cloth.
Keep the
access doors
closed so air
can Fow around inside and cool the
generator. Closed doors also keep dirt
and sand away from the engine.
Now and then look at the
COOLANT
TEMP
indicator on the control panel
and
the
COOLANT HIGH TEMP
fault indicator. If either indicator shows
the engine’s running hot, the problem
could be a clogged air cleaner or air
intake ducts. Or the generator could
be
overloaded.
Read
the
operator’s
troubleshooting table for instructions.
±ield level PMCS is based on an interval schedule of hours, weeks or months of
operation. Regular PMCS ensures that defects are found and ²xed before they can
disable your generator. ±ield maintenance must complete
all
of the checks and services
in the TMs. Here are some of the highlights:
ENGINE OIL:
Drain the engine oil according to the PMCS interval schedule. Add
the proper type of oil. Also change the oil
flter.
If you’re in a dusty or sandy place,
change the oil and ²lter more often.
FUEL:
Inspect
the
±uel/water
separator
by the interval schedule. Inspect
it more often if the TQG is in constant use.
If there’s water, drain it. If the fuel/water
separator has cracks, corrosion or signs of
leakage, replace it.
Inspect the
engine ±uel injection pump.
Look for damage or signs of leakage.
Also inspect the
pump sealing gasket
for leaks. If you ²nd problems, read TM
9-2815-257-24 (Nov 00) for instructions
on pump and gasket replacement.
HEAT:
To keep the engine from overheating, inspect the
engine air flter/air
cleaner.
Look for cracks and dents. Also look for dirt and clogging. A clog chokes off
air to the engine, making it work harder. Clean or replace the ²lter/cleaner as needed.
±ield maintenance must remove and replace the engine air ²lter/air cleaner at least
as often as the PMCS interval schedule requires.
The 3-kW TQG is cooled by two fans. Inspect the cooling fans for damage. Make
sure the blades turn smoothly. Replace the fans if necessary. Also check the engine’s
cylinder ²ns for dirt and debris. Clean if necessary.
Read your TMs. In the pages following the PMCS tables, you’ll ²nd work packages
for the general inspection and service of both the generator and engine.
Field Level PMCS
You’re Responsible
Close access doors to help cool generator
If there’s
water in
fuel/water
separator,
drain it
Operators and field
maintainers are
required to perform
all
preventive maintenance
checks and services
assigned to them.
Lack of PMCS has
caused the TQGs and
BETSS-Cs to
shut down.
Performing PMCS by the
book will keep them
running.
if the engine’s
hot,
the coolant
could be
low.
Check the coolant
level. if it’s low,
add more.
The 5-kW TQG
engine cooling
system consists
of a radiator,
hoses, cooling
fan, water pump,
fan belt and
overflow bottle.
Before you run
the TQG, inspect
the radiator for
dirt and debris
blocking air
flow. Clean it if
necessary.
inspect
the
entire
cooling
system
for Class
III leaks,
damage,
cracks or
missing
parts.
if you find
any of these
problems,
report it
to field
maintenance.
739 50-51.indd
1-2
4/21/14
3:10 PM
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