MAULE AEROSPACE TECHNOLOGY, INC.
MAINTENANCE MANUAL
FOR
MXT-7-180
Rev. F
24/37
LANDING GEAR, WHEELS AND BRAKES
MAIN LANDING GEAR:
The main landing gear consists of separate left and right side heat-treated (7075-T651) alu-
minum spring legs, which are bolted to a square tube truss in the bottom of the fuselage struc-
ture. No maintenance is required. However, since the landing loads are taken on these mem-
bers, they are stressed and should be inspected frequently for damage and corrosion. See Sec-
tion II, “Inspection Guides”.
MAIN WHEELS AND BRAKES:
See Equipment Lists for items installed and options.
To change a tire, follow these steps:
1.
Chock nosewheel and opposite main wheel.
2.
Remove brake calipers by removing two (2) brake bolts.
3.
Raise wheel using a hoist with a cable sling placed under the lower end of the spring gear leg
as shown on page 26.
4.
Remove hubcap, cotter pin, and retainer nut.
5.
Remove wheel.
6.
Deflate tire by removing valve core.
WARNING: Failure to fully deflate the tire prior to separating the wheel halves (Step 8) may result
in personal injury.
7.
Break tire bead on both rim halves.
8.
Remove wheel rim through-bolts.
9.
Clean rims thoroughly.
10. Remove bearings and check for scoring, galling and corrosion. Replace as required.
11. Re-grease and assemble. (Tire and wheel rims are prebalanced. Balance points are usually
marked by a colored dot.)
12. Lightly inflate to prevent pinching of tube when tightening through-bolts. Torque to 150 ±10
in.-lb.
