9 power supply maintenance, 9 power supply maintenance -16 – Tweco 15XC Merlin User Manual

Page 88

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CUSTOMER/OPERATOR SERVICE

5-16

Manual 0-2251

The fan motor and pump in the power supply should be
oiled twice per year or once for each 100 hours of opera-
tion. To oil the motor, remove one side panel and add two
or three drops of 20 SAE oil to the front and rear oil holes
on the motor.

Some units may utilize a sealed motor design which does
not require lubrication.

The only other routine maintenance required for the
power supply is a thorough cleaning and inspection, with
the frequency depending on the usage and the operating
environment. Refer to Appendix 7 for a recommended
complete routine maintenance schedule.

To clean the unit, first make sure that the power is discon-
nected. Remove the side panels and blow out any accumu-
lated dirt and dust with compressed air. The unit should
also be wiped clean. If necessary, solvents that are recom-
mended for cleaning electrical apparatus may be used.

While the side panels are off, inspect the wiring in the
unit. Look for any frayed wires or loose connections that
should be corrected. When cleaning the unit, inspect the
area around the high frequency spark gap points. Accu-
mulated dirt in the area around the spark gap assembly
can weaken the high frequency starting and cause poor
pilot starting.

Fan Motor and Pump

Lubrication

5.9 POWER SUPPLY MAINTENANCE

NOTE

Routine Maintenance

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