3 servicing the apu, Maintenance – Alpha Technologies AlphaGen 5.0kW Auxiliary Power Unit User Manual
Page 40

3. Maintenance
40
031-132-B0-001 Rev. A
TM
©2000
3.3 Servicing the APU
Some tools and equipment may be required such as:
Phillips screwdriver
10 mm socket wrench
3/8 inch open socket wrench
DVM capable of displaying true RMS AC voltage and frequency
(i.e., Fluke 87)
Battery operated frequency counter (needed only if a frequency
reading DVM is not available).
Some components on the APU are front accessible and do not require
removing the APU during servicing:
Air filter replacement
Rectifier replacement
Oil filter
Spark plug replacement
Oil fill
Dual fuel load block (Propane/Natural Gas)
Demand regulator pressure tap
Electrical interface connections
If the APU has to be replaced because of failure, follow the procedures outlined
in Section 3.16 "Removal and Replacement of Generator Set".
CAUTION:
If unit is being serviced immediately after the
generator has been in operation, allow sufficient
time for Engine components to cool to prevent
personnel from being injured or burned from the
exhaust system.
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