ICON A5 MM : Landing Gear : Nose Landing Gear : Maintenance Instructions : Nose Landing Gear (NLG) Rigging and Check with Landing Gear Up
Nose Landing Gear (NLG) Rigging and Check with Landing Gear Up
100430-01
Use the following procedure to check the rigging with Landing Gear UP.
Applicable Aircraft Serial Number
All
Type of Maintenance
Line
Level of Certification
LSA-RM
Task Specific Training Required
No
Special Tools Required
ICA009750 (HARD JACKING POINT, ASM)
ITL012297 (5lbs WEIGHT)
Single Sheet of Paper
Parts Required
None
Aircraft System and Number
11—Landing Gear
Safety Equipment
As Needed
Consumables
ICA012078 (LUBRICANT, GENERAL PURPOSE)
Task Instructions
1. Jack the aircraft (Jack Aircraft) or support the nose as follows:
a. Remove the main landing gear 15A fuse from the overhead console. Save this fuse.
c. Fold the wings of the aircraft. This will move the center of gravity aft so that it is easier to lift the nose up and down during the NLG rigging checks.
d. Connect battery charger to the charging terminals. The charger used must have a selectable Lithium charging mode.
e. Have a foam block or equivalent nearby that can be placed under the aircraft on the keel aft of the NLG wheel well that will allow the nose wheel of the aircraft to have approximately one inch or more clearance from the ground. This block will need to be removed numerous times during the procedure.
3. Remove the bolt, washer, and rod which engage the doors from the NLG strut. (Figure 393)
Figure 393. NLG Strut Hardware
4. Attach 5lb weight (ITL012297) to NLG wheel.
Figure 394. Rigging with Gear Up
5. Confirm that 15A MLG fuse is removed and landing gear is in the DOWN position. Turn the MASTER switch to ON. Move landing gear switch to UP position to allow the landing gear to retract fully.
6. When in the UP position a single sheet of paper should slide with minimal drag between the NLG strut and stop.
8. Verify MASTER switch is ON and the landing gear is UP. Move landing gear switch to DOWN position to allow the landing gear to extend fully.
9. Remove 5lb weight (ITL012297) from NLG wheel.
10. Install rod into NLG strut: using isopropyl alcohol, clean surfaces where lubricant will be applied. Apply lubricant (ICA012078) liberally to threads and shank of bolt. Install rod into NLG strut with bolt and washer. Torque bolt 25-28 in-lbs. (Figure 393)
Verification Method
Operational Check—Once weight is removed and NLG doors are reengaged, retract NLG. Verify 7.5 amp MLG fuse does not blow and that the NLG doors are fully closed. If fuse blows or gear doors are not closed completely, adjust doors per Aft Nose Landing Gear (NLG) Door Mechanism Removal, Installation, and Rigging.
See NLG Rigging Check with Gear Down. (Nose Landing Gear (NLG) Rigging and Check with Landing Gear Down (1.0 Configuration) or (Nose Landing Gear (NLG) Rigging and Check with Landing Gear Down (1.2 Configuration).)
If removed for this task, reinstall the NLG 15A fuse.