TM 9-3431-254-14&P
ADVERSE WEATHER PRECAUTIONS (Continued)
and all terminals and connections in the electrical system
wiped dry. Keep all linkage oiled.
OPERATION IN SALTWATER AREAS
c. BRUSHES - The brushes of the exciter should be
inspected regularly to make certain that they are free
a. CANOPY - Wash canopy regularly to remove salt
in the holders. Lift the brushes in the brushholders
film. Repaint any damaged places andoil the side panel
about every two days to insure their freedom to slide
within the holder. Wipe dry all the parts that can be
hinges regularly.
reached, and use compressed air, if avaiIable, to dry the
parts of the generator that cannot otherwise be reached.
See MAINTENANCE for brush care.
b. COVERING -To protect generator as much as
possible from salt water atmosphere, keep the side
d. BATTERY TERMINALS - Thoroughly clean the
panels on the canopy closed. It is advisable to keep the
unit covered with a tarpaulin, if available, while not in
battery terminals and connections. Coat terminals and
operation. Salt water should be wiped from the engine,
connections with petroleum jelly to retard corrosion.
MAINTENANCE
NOTE: Check the Starting and Operat-
trical joint compound is available
ing Instructions for the
in 5 oz. (141.8 g) tubes
part no.
Model V-465D Air-Cooled Engines,
903170).
furnished with this manual for all
EVERY MONTH - Check generator for amperage
engine-related maintenance.
and voltage output. If generator fails to build up voltage
A proper preventive maintenance program consisting of
after starting, the exciter may have lost its residual
magnetism. Refer to instructions under LOSS OF
a schedule of inspection and cleaning is the basis of
MAGNETISM.
good welding machine care, and the key to long, un-
troubled operation.
CLEANING
INSPECTION
The unit should be cleaned periodically, as required. Do
A periodic inspection of the equipment should be es-
not allow a dust buildup to occur on the unit. Do not
tablished and maintained. The following inspections
operate the unit if moisture accumulation or condensa-
and time periods are recommended.
tion has occurred. Use clean, dry compressed air, with a
pressure not to exceed 25 psi (172 kPa), to clean dust
EVERY DAY Check all power cables and hoses
and dry moisture from surfaces and terminal blocks.
for cuts and other damage. Repair any damage im-
mediately to prevent shorts, damage spreading, etc.
WARNING: Do not use flammable
cleaning materials, gasoline, naptha,
Check for oil or fuel leaks. Check oil pressure at 1800
etc., to clean unit. Do not use chem-
RPM. If oil pressure is less than 15 psi (103 kPa), shut
ically treated cleaning rags to clean
off engine and check for defective oil pump, filter or
terminal blocks, or electrical com-
clogged oil lines.
ponents.
Check battery ammeter. Charging rate with fully charged
Blow out generator windings with compressed air, not
battery should be 2 to 3 amperes at 1800 RPM.
over 25 psi (172 kPa) pressure or remove with a suc-
tion type cleaner with a non-metallic nozzle. If wind-
ONCE A WEEK - Check tightness of all electrical
ings should become slightly damp, use space heaters or
connections. If arcing has occurred at any connection,
electric light bulbs to effectively dry out the windings.
recondition it and, if it's a power cable connection,
If dampness is excessive, apply external heat under a
cover mating surfaces with a light, uniform coat of
canvas cover, well vented. Heating should not exceed
electrical joint compound before reassembling. Elec-
12