Incorrect rigging of nose Check nose gear steering gear steering. adjustment.
32-00-00 Page 32-11 Revised: December 6, 2002
THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
CHART 3201. TROUBLESHOOTING (LANDING GEAR) (Sheet 5 of 5)
Trouble Cause Remedy
Nose gear fails to Centering guide roller Replace roller.
straighten when landing sheared.
gear retracts.
Damaged guide. Replace guide.
Main landing shimmies Tire out of balance. Check balance and replace
during fast taxi, takeoff tire if necessary.
or landing. Worn or loose wheel Replace and/or adjust bearings. wheel bearings.
Worn torque link bolts Replace bolts and/or and/or bushings. bushings.
Excessive or uneven wear Incorrect operating Inflate tire to correct on main tires. pressure. pressure.
Wheel out of alignment Check wheel adjustment.
(toe in or out).
Lower side brace link out Check gear adjustment.
of adjustment, allowing
gear to slant in or out.
Strut bottoms on normal Insufficient air and/or Service strut with air landing or taxiing on fluid in strut. and/or fluid. rough gound.
Defective internal parts Replace defective parts. in strut.
Landing gear doors fail Landing gear not retracting Check adjustment of to completely close. completely. Landing gear.
Door retraction mechanism Check adjustment. out of adjustment.
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THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
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THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
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THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
MAIN GEAR AND DOORS.
MAIN GEAR OLEO.
DISASSEMBLY OF MAIN GEAR OLEO. (Refer to Figure 32-1.)
The main gear oleo assembly may be removed and disassembled from the gear oleo housing with the gear removed from or installed in the airplane.
1.
Place airplane on jacks. (See Chapter 7.)
2.
Place a drip pan under the main gear to catch spillage.
3.
Remove air and fluid from the oleo. Depress air valve core pin until strut pressure has diminished; remove the filler plug and with a thin hose siphon as much hydraulic fluid from the strut as possible.
4.
Disconnect brake line at the joint located in the wheel well.
5.
To remove piston tube assembly from oleo housing, remove the upper and lower torque link connecting bolt assembly and separate links. Note number and thickness of spacer washer(s) between the two links.
6.
Compress the piston tube; reach up into the tube and release the snap ring from the annular slot at the bottom of the oleo housing.
7.
Pull piston tube with component parts from cylinder housing.
8.
The piston tube components may be removed by reading in the tube and pushing out the upper bearing retainer pins. Slide off the upper bearing, lower bearing with O-rings, wiper and washer.
9.
To remove orifice tube from the oleo housing, remove locknut and washer from top of housing. Draw tube with O-ring and retainer from housing.
10.
The orifice plate is removed from the bottom of orifice tube by releasing snap ring holding the plate in position.
11.
To remove piston tube plug and O-ring located in the bottom end of the tube, remove bolt assembly and insert a rod up through the hole in the body of the fork and push plug with O-ring from top of tube.
CLEANING, INSPECTION AND REPAIR OF MAIN GEAR OLEO.
1.
Clean all parts with a suitable dry type cleaning solvent.
2.
Inspect landing gear oleo assembly components for the following:
A. Bearings and bushings for excess wear, corrosion, scratches and overall damage. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：西门诺尔飞机维护手册 simenole PA-44-180 AMM 1(104)
