Ford F series Owner's Manual page 331

Battery
Check and recharge as necessary.
Keep connections clean and covered with a
light coat of grease.
Brakes
Make sure brakes and parking brake are fully
released.
Tires
Maintain recommended air pressures.
Miscellaneous
Make sure all linkages, cables, levers and
clevis pins under vehicle are covered with
grease to prevent rust.
Move vehicles at least 25 feet (10 m) every 15
days to lubricate working parts to prevent
corrosion.
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