CHAPTER 5
PAGE 23
PAGE DATE: 1. March 2011
MAINTENANCE MANUAL EXTRA 330LX
Inspector:
Mechanic:
Date:
Serial No.:
Inspections
as specified
each 100 hours
SCHEDULED MAINTENANCE CHECKS
Maintenance Checks Schedule
each 50 hours
O O 13 Check wheel nuts to be sure they are properly installed.
Bolt threads should be flush to 1-1/2 threads extending
beyond the nut. Nuts have to be on the side of wheel oppo-
site the brake disc (outboard side of wheel).
O O 14 Inspect the brake disc for rust, excessive grooves, large
cracks, coning or other visible damage. Check if disc thick-
ness is more than 0.325in/8.255mm. Coning of disc in
excess of 0.015 in /0.381 mm is cause for replacement.
O 15 Remove wheels and wheel bearings. Inspect wheel bearing
grease for contamination and solidification.
O 16 Inspect snap rings and grease seals for distortion or wear.
Replace grease seal felts if they are hard or contaminated.
Lightly saturated grease seals should be replaced if cracked,
dried out, or distorted.
O 17 Inspect wheel bearings for excessive wear or damage.
Replace on condition.
O 18 Repack bearings with MIL-PRF-81322F or later, Mobil
Aviation Grease SHC 100 or equivalent. Reinstall wheels
and secure.
O O 19 Check wheel bearing clearance and wheels for free rotation.
PAGE DATE: 13. September 2013
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