SERVICING ELECTRICAL SYSTEM
Electrical system servicing involves adding distilled water to battery to maintain correct electrolyte level,
checking cable connections, and checking for any spilled electrolyte that could lead to corrosion. Check
security of all electrical connections as well as operation of all lights, general condition of generator or
alternator and starter. Inspect electrical wires for chafing and bare wires. For detailed information on this
system, refer to chapter 24.
BATTERY
BATTERY BOX CORROSION PREVENTION
Check battery for spilled electrolyte or corrosion at each 50 hour inspection or every 30 days, whichever
comes first. If corrosion is found, remove, clean, and install battery and box as follows:
l. Remove box drain cap from underside of fuselage and drain off any electrolyte that overflowed into
box. (On aircraft s/n 8611005 and up, no cap is installed.)
—CAUTION—
Do not allow soda solution to enter battery.
2. Neutralize corrosion effects by applying a solution of baking soda and water mixed to a consistency of
thin cream. Apply this mixture until all bubbling action has ceased.
3. Rinse battery and box with clean water and dry.
4. Place cap over battery box drain.
5. Install battery. (Refer to chapter 24 for additional service information.)
LUBRICATION
LUBRICATION INSTRUCTIONS
Periodic application of recommended lubricants to bearing surfaces, as detailed in the following
paragraphs, will ensure maximum efficiency of all moving parts. Lubrication instruction regarding locations,
time intervals, and type of lubricants used is found in lubrication chart. To ensure best possible results from
application of lubricants, observe precautions as follows:
l. Use recommended lubricants. Where general purpose lubricating oil is specified, but unavailable, use
clean engine oil as a substitute.
2. Check components to be lubricated for evidence of excessive wear and replace as necessary.
3. Remove all excess lubricant from components to prevent collection of dirt and sand capable of causing
excessive wear or damage to bearing surfaces.
12 - 27 - 00
Page - 12 - 13
Reissued: August 1, 1986
1D9
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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