15.
To check the nose gear steering for its 30° + 1° maximum right and left travel, mark on each side of the nose wheel an angle line from the centerline and wheel pivot point. Turn the wheel to its maximum travel in both directions to check for allowable travel. Should travel be exceeded in one direction and not enough in the other direction, check for possible damage to the gear fork or torque links.
NOSE GEAR DOOR.
REMOVAL OF NOSE GEAR DOOR. (Refer to Figure 32-12.)
1.
Disconnect the retraction rod assembly from the door by removing nut and washer from each door half.
2.
The doors may be removed by removing the hinge pins from each door.
3.
The operating mechanism may be removed by removing the bearing blocks on each side of the wheel well.
— Note —
The operating mechanism may be further disassembled as necessary.
CLEANING, INSPECTION AND REPAIR OF NOSE GEAR DOORS.
1.
Clean all parts with a suitable cleaning solvent.
2.
Inspect the door for cracks or bent skin, loose hinge brackets and worn or corroded bearings.
3.
Check the retracting mechanism for worn downlock spring and worn or damaged surfaces.
4.
Repair to the door assembly is limited to replacing hinge bearings or rivets and mechanism parts, minor skin repairs and repainting.
32-20-00 Page 32-52 Revised: December 6, 2002
2I4
THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
INSTALLATION OF NOSE GEAR DOORS. (Refer to Figure 32-12.)
1.
Position the complete operating mechanism inside the wheel well and secure the bearing blocks to the sides of the wheel wells.
2.
Install the gear doors by positioning the doors and installing a new hinge pin. The hinge pin ends should be bent to provide a safety.
3.
Adjust the gear doors. ADJUSTMENT OF NOSE GEAR DOORS. (Refer to Figure 32-12.)
1.
Place the airplane on jacks. (Refer to Chapter 7.)
2.
Disconnect the nose gear door retraction rods, if not previously disconnected.
3.
Adjust doors one at a time. Close the door to the stop and adjust the retraction rod.
4.
Extend the landing gear and connect both doors.
5.
Retract the landing gear fully and ascertain the doors close properly and do not bind.
32-20-00 Page 32-53 Revised: December 6, 2002
THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
THIS PAGE INTENTIONALLY BLANK
32-20-00 Page 32-54 Revised: December 6, 2002
2I6
THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
EXTENSION AND RETRACTION. TROUBLESHOOTING.
See Chart 3203.
CHART 3203. TROUBLESHOOTING (EXTENSION & RETRACTION) (Sheet 1 of 5)
Trouble Cause Remedy
Landing gear retraction system Landing gear actuator circuit Reset circuit breaker and
fails to operate. breaker open. determine cause for open
circuit breaker.
Landing gear selector Reset circuit breaker and
circuit breaker open. determine cause for open
circuit breaker.
Landing gear actuator circuit Check wiring.
wires broken.
Landing gear selector circuit Check wiring.
wires broken.
Safety (squat) switch out of Readjust switch. (Refer to
adjustment. Adjustment of Safety Switch.)
Squat switch inoperative. Replace switch.
Pressure switch inoperative. Replace switch.
Pump retraction solenoid in Replace solenoid.
operative (upper solenoid).
— Note —
If the retracting solenoid of the pump can be heard to actuate when operating the gear selector switch, it may be assumed that the gear control circuit is operating properly and the actuator circuit should be further checked.
Gear selector switch ground Check ground. incomplete.
Gear selector switch inoperative. Replace switch. Hydraulic pump ground Check ground. incomplete.
Hydraulic pump inoperative. Replace or overhaul pump.
Hydraulic fluid in reservoir Fill reservoir with below operating level. hydraulic fluid. Battery low or dead. Check condition of battery.
32-30-00 Page 32-55 Revised: December 6, 2002
THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
CHART 3203. TROUBLESHOOTING (EXTENSION & RETRACTION) (Sheet 2 of 5)
Trouble Cause Remedy
Landing gear extension system Landing gear actuator circuit Reset circuit breaker and
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 2(10)
