Grease (with ball bearing grease): the nose gear strut (top and bottom bearing) and nose
wheel axle, and grease all cable fairleads.
Main gear spring attachment..
Check that the rubber pads are undamaged and properly
secured in place (check top and bottom, right and left sides).
After having made a hard landing:
Check the wheel forks (especially if landing was in
croswind), they may be bent sideways. Check the main gear spring, forks, wheels, nose gear
strut attachments top and bottom.
Note: If an unusual fact is discovered at any time, during pre-flight or at scheduled
inspections,
contact a Zenair dealer or the manufacturer for the proper maintenance
procedure. DO NOT attempt to
maintain or repair the
aircraft without proper
qualifications. ALWAYS
refer to the
STOL CH 701 Plans and Manuals, end Engine
manual(s) before effecting repairs or replacing parts. ALWAYS use approved replacement
parts.
Rivet replacement:
Drill out loose or corroded blind rivets and replace using Avex rivets.
If required, replace with a rivet the next size up. and/or add
another rivet at approximately
12 mm center distance.
Caution:
do not damage internal structure when drilling.
Cracked sheet metal:
If a small crack appears, stop the crack by drilling a small (3.2 mm)
hole at the end of crack. If crack grown again add a patch of the same thickness material
and rivet all around with AVEX A4 rivets at a maximum pitch of 40 mm. Do not damage
internal structure when drilling.
Buckled trailing
edges
(due to mishandling): They are usually net detrimental to the
strength of the aircraft. as long as the buckle does not exceed 15 mm over 1 m. They may
slightly off-set the correct trimming in flight. Check for cracks which may develop.
