27/09/2026
Refurbishing the hand operated hydraulic rig.
Serviced and repainted.
We have decided that, to change the faulty internal Oleo from within the left main undercarriage leg that, once on jacks the left leg will not be fully removed. This is to avoid any possibilities of damage to any fittings, the main casting and pivot points. Once the bogie unit has been removed with it's wheels and brakes the, aircraft hydraulics will be isolated. In order to control things at our pace. The rig will be connected via hoses and stop valves and used to unlatch the locks and then operate the retraction jack. The top and bottom oleo retainer nuts will be slackened and the leg put into partial retraction at a suitable angle in order to undo and slide out the faulty Oleo and the lower leg sliding portion. The replacement Oleo will then be fitted. The leg locked back down and the slave (temporary) bogie fitted with wheels only (no brakes). The Oleo will then be oiled and gassed as required. The removed bogie with brakes etc will then be taken into the workshop for overhaul. We have been warned about shims on the bogie unit pivot axle. That will not matter for the slave unit but, they will be carefully removed and refitted at final re-assembly.