
44 SEBU8219-01
Operation Section
Lifting and Storage
i02147124
Product Storage
SMCS Code: 7002
Short Time Storage
If the generat
or is not installed immediately, store
the generator in a clean area. This area should also
have the following conditions: low humidity, stable
humidity, and
stable temperature. Space heaters
must be energized in order to keep condensation
from the windings. All accessory equipment that
is supplied w
ith the unit should be stored with the
generator. The combined unit should be covered
with a durable cover in order to protect against the
following co
ntaminants:
•
Dust
•
Dirt
•
Moisture
•
Other airborne abrasive substances
Long Time Storage
Engine Storage
If the engin
e will not be started for several weeks, the
lubricating oil will drain from the cylinder walls and
from the piston rings. Rust can form on the cylinder
liner surf
ace, which will increase engine wear which
can reduce engine service life.
To help pre
vent excessive engine wear, use the
following guidelines:
•
Complete a
ll of the lubrication recommendations
that are listed in this Operation and Maintenance
Manual, “Maintenance Interval Schedule”
(Maintena
nce Section).
•
If freezing temperatures are expected, check the
cooling s
ystem for adequate protection against
freezing. See this Operation and Maintenance
Manual, “Refill Capacities and Recommendations”
(Mainten
ance Section).
If an engine is out of operation and if use of the engine
is not pla
nned, special precautions should be made.
Iftheenginewillbestoredformorethanonemonth,
a complete protection procedure is recommended.
Your Caterpillar dealer will have instructions for
preparing the engine for extended storage periods.
For more detail
ed information on engine storage, see
Special Instruction, SEHS9031, “Storage Procedure
for Caterpillar Products”.
Generator S torage
A storage peri
od in excess of six months should be
preceded by the following preparation:
1. Install desic
cant bags inside the exciter’s cover
and install desiccant bags inside the screen of
the fan.
2. Seal the unit in a covering of plastic or other
material that has been designed for that purpose.
3. Adequately tag the generator. This will ensure
that preservative greases and desiccant bags
are removed b
efore the generator is placed in
operation.
Bearing Inspection
Ball bearin
g generators use grease. This grease is
subject to deterioration. If the generator is stored
more than one year, new ball bearings may be
required. T
hese bearings should be greased prior to
being put into operation. If inspection indicates that
bearings are free of rust or corrosion, and no noise or
excessive
vibration appear on start-up, replacement
is not necessary.
Electrical Measurements
Measure th
e insulation resistance of each winding
if the generator was exposed to the following
conditions:
•
Rapid changes in temperature
•
Freezing
•
Wet climate during storage
Note: These tests should be conducted prior to any
power connections that are being made. These tests
should be
conducted prior to any control connections
that are made.
Refer to t
he Generator Maintenance section of this
manual in order to measure the following items:
•
Exciter
Field (Stator)
•
Exciter Armature (Rotor)
•
Generator Field (Rotor)
•
Generato
r Armature (Stator)