6.
The shimmy dampener requires no service other than routine inspection. In case of damage or malfunction, the dampner should be replaced rather than repaired.
7.
Repair to the landing gear is limited to reconditioning of parts such as replacing bearings and bushings, smoothing out minor nicks and scratches, repainting of areas where paint has chipped or peeled and replacement of parts.
32-20-00 Page 32-43 Revised: December 6, 2002
THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
INSTALLATION OF NOSE LANDING GEAR. (Refer to Figure 32-6.)
— Note —
When assembling any units of the landing gear; lubricate bearings, bushings, and friction surfaces with the proper lubricant as described in Chapter 12.
— CAUTION —
WHENEVER THE AIRCRAFT IS PLACED ON JACKS FOR THE PURPOSE OF MANUALLY RETRACTING THE NOSE GEAR ASSEMBLY, INSURE THE NOSE GEAR DOWNLOCK IS FULLY DISENGAGED BEFORE RELEASING THE NOSE GEAR DRAG LINKS. DAMAGE COULD OCCUR TO THE DOWNLOCK IF NOT FULLY DISENGAGED.
1.
Attach the steering bellcrank with bushing to its mounting plate on the trunnion support securing with the bolt assembly. Align the top surface of the steering bellcrank and the top surface of the steering arm bushings by positioning the spacer washers as shown in Figure 32-6. Connect the bungee assembly to the bellcrank and install bolt and nut assemblies. The adjustment, fore and aft of the bellcrank may be made after the gear has been installed and rigged and adjusted.
2.
To install the Far housing assembly, position the gear so that the bolt attachment points on the housing align with the attachment points on the trunnion support. Install pivot bolts, washers and nuts. Tighten the nuts to a snug fit, yet allowing the gear to swing free, and safely.
3.
The drag links and gear tension spring arm may be installed by the following procedure:
A. Ascertain that the upper and lower links are assembled with the downlock hook attached, and the through travel of the links checked.
B. Attach cylinder rod end to downlock using bolt, washer and nut. Nut must be on the inboard side.
C. Position the link assembly to allow the bolt holes in the links to align with the bolt holes in the gear housing and the nose gear support. Install the link attachment bolts.
— CAUTION —
THE NUMBER OF WASHERS, IF ANY, BETWEEN THE UPPER DRAG LINK AND THE NOSE GEAR SUPPORTS IS DETERMINED AT THE FACTORY TO ENSURE CORRECT CENTERING OF THE NOSE GEAR. WHEN REINSTALLING THE UPPER DRAG LINK, BE SURE TO REINSTALL THESE WASHERS, IF ANY, IN THE POSITION, NUMBER, AND TYPE THAT WERE REMOVED.
D. Install nuts and washers on the upper link attachment bolts. Tighten the nut to allow to links to rotate freely and safely.
E. Check alignment of the downlock hook to determine if it grips the roller bearing so as not to contact the bolt head, the bearing attachment block or washer. If the downlock hook is inboard, or it contacts the bolt head, shim between the bearing and the bearing attachment block with washer AN960-10L, not to exceed three. The bearing must be free to rotate.
F. Install the gear tension spring arm on the drag link bolt on the right side of the gear oleo housing, secure and safety. An AN960-516L washer is installed on the bolt between the lower drag link and the arm.
32-20-00 Page 32-44 Revised: December 6, 2002
2H20
THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
4.
Retract and extend the landing gear several times to ascertain smoothness of operation. Also check that the drag link assembly falls into the through center locked position. (See CAUTION.)
5.
Retract the gear and connect the gear downlock spring between the downlock hook and the upper drag link.
6.
Extend the gear and connect the two gear tension springs between the attachment point on the oleo housing and the spring arm.
7.
Attach the aft end of the hydraulic cylinder to its attachment fitting using bolt, nut and washer.
8.
Reconnect both nose gear door actuating rods.
9.
Ascertain that the landing gear is serviced per Chapter 12.
10.
Check adjustment of the gear.
11.
Retract landing gear and check door operation.
12.
Check the alignment of the nose gear.
13.
Ascertain that the landing gear is down and locked, then remove the airplane from jacks.
NOSE GEAR DOWNLOCK AND ECCENTRIC BUSHING.
REMOVAL OF NOSE GEAR DOWNLOCK AND ECCENTRIC BUSHING. (Refer to Figure 32-8.)
1.
Place the aircraft on jacks as described in Chapter 7.
2.
Position a temporary support under the nose compartment and remove the four bolts which secure the nose to the fuselage. Remove the temporary support and gently lower the nose.
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(7)
