Nidec 4P10, Instruction Manual, Page: 43 / 46

Page 43
Symptom Cause Remedy
Vibrations Defective or dry bearings. Replace defective bearings.
Misalignment of generator
and prime mover.
Align the generator set.
Generator not properly
mounted.
Check mounting. Correct defective mounting.
Transfer of vibration from
another source.
Isolate the generator set from the source of vibration
by installing vibration dampeners between generator
set base and foundation.
Installation and Maintenance Equipment
List of equipment required for installation and maintenance. See
Table 5.
Type Name Notice
Test equipment Ammeter Clamp-on, 0 to 500 A range for measuring electric
current.
Multimeter Digital, for measuring voltage, current, frequency,
and resistance.
Thermometer For measuring temperature in Celsius.
Megger To measure insulation resistance.
Resistive Bridge To measure resistance of windings.
Special tools Bearing puller For changing bearing.
Exciter puller For pulling exciter armature.
Standard tools Cable tool Crimping
Flashlight As required.
Grease gun For lubricating bearings.
Hammer Soft-faced.
Lamp (incandescent) Safety light.
Screwdrivers Standard, sized as required.
Phillips, sized as required.
Wrench Adjustable, 12-inch.
Torque 0 to 100 ft-lb.
Wrench set Allen, 1/8 to 1/2 inch.
Socket, 1/4 to 1 inch with 3/8 and 1/2 inch drive.
Standard, open-end/box-end combination sized 1/4
to 1 inch.
Vacuum Electric with nonmetallic nozzle.
Materials Air Compressed, dry.
Corrosion inhibitor Daubert Nox-Rust VC #10 Oil or equivalent.
Covering material Waterproof desiccant bags for protection from
moisture during long-term equipment storage.
Detergent As required for cleaning.
Gloves Chemical-protective and electrical protective
Heaters Space heater, for eliminating excess moisture in
damp areas and dry out of motor or generator
windings.
Oil STP Oil Treatment for assembly.
Plastic Protection for long-term storage.
Rags As required for cleaning.
Sealants Threadlocker Loctite 242, Sealant Loctite 587 and
Curil-T, Gasket Sealant Loctite Hi-Tack.
Tags Warning and cautions.
Water Warm, clean water for cleaning..
Table 5 Installation and Maintenance Equipment