Jacking & Wheel Nut

[bigmo]

Need to get my tires swapped out (and do my pads finally). The jacking instruction in the service manual are - meh. Absolutely zero help.

I still don't have a jacking plan for the mains. Before I create a DIY angled bracket to lift on the strut, is it possible to lift from the exposed bottom plate? This bolts right into the above frame ladder.



Next, the nut that appears to retain the wheel is a weird 4 pin lock nut (I've seen these on clutches before). It's an M25 according to the IPC. Anyone know what the tool is even called?

[toung]

For the wheel nut removal tool , I’ve ordered from Tecnam around 20 bucks.

[Glenn]

Apr 11, 2024 3:45:38 GMT bigmo said:

Next, the nut that appears to retain the wheel is a weird 4 pin lock nut (I've seen these on clutches before). It's an M25 according to the IPC. Anyone know what the tool is even called?

I believe it is called a SPANNER wrench. Various configurations and examples can be found on Amazon, Harbor Freight, etc. 

[LSA Flyer]

I'd call Tecnam in Sebring and get the tool. It's the best way to not muck up the wheel nut. Heat the wheel nut with a hair dryer to soften the nylon insert but don't cook it! The nut can be reused several times.

Here is how I do it.

• Remove wheel pant

• Remove wheel pant attachment extension on axle.

• Insert rod of proper diameter into hollow axle for jack.

• Raise the wheel off ground.

• Remove the 3 hex screws holding the brake disk.

• Heat the large wheel nyloc nut and remove.

• Remove the wheel & tire.

• Remove the caliper if servicing or new pads.

• Support the leg, Lower and remove wheel if needed.

• Assembly is the reverse order.

• Remember to retract brake pads fully.

• Sealed Ball bearings, do not preload.

[bigmo]

So, we were able to get everything sorted easy peasy. Wound up just drifting the nut off, I'll order the prper nut from Tecnam for the next change. 

The turn-key brake setup from Matco was A+. For those with Matco brakes, you need the "SwiftLine Kit for BI5 Brake (I Series Internal Caliper)" (about $150 shipped). Once you have that kit, you can send off your old pads/plates and they'll build a turn-key backup set for about $70. These things shew through brakes, so a spare set is a necessity for me.

I grew up on a farm, so we always improvised as needed. My wing strut jack worked better than I even envisioned lol. I had a spare piece of red oak 4x4. Cut that on a 45 (angle of strut). Added thin grip rubber traction material to the piece of oak, and then to two "slide blocks". Those were clamped with plain old shop clamps. I drilled a 1" hole 1/2" deep under the oak bloack for the bottle jack. Absolutely stable and is in no way inferior to the commercial strut tool.

The only hangup in our whole operation was the actual tire swap. Changed out the SPENT Goodyears for Aeros. We spent almost an hour per tire breaking the bead off the rims. They had almost vulcanized to the rim. At one point I was very ready to cut it loose.

A warning for those changing brake pads - take the brake pad initial conditioning instructions seriously. The new pads I installed had MAYBE 20% braking power at startup - I was prepared for that. I asked our ground controller for a run down our 10k taxiway and back and did a number of cycles per Matco's instructions. By the time I got back, my brakes were stronger than ever.

[cole505]

Hi Bigmo

Here is a strut adaptor that works well I have been using it for over 10 years never a problem. Perfect way to service your wheels or brakes. All you need to buy is a small bottle jack to go with it… Once the wheel pant is off just pull the cotter pin, any large wrench will work on the wheel nut, there is very ( No heat required ) little torque holding the nut on. Go”s back on with little torque Very easy task 😊 you will have to remove the tape holding the brake line, just use the wide Gorilla tape it works extremely well easy on and off…….. to secure the brake line back to the strut… any questions call me 702-232-0904 happy to assist you 🇺🇸😊✅



Ray & Lucy ⚡️☝️✅😊🇺🇸

LSRM-A