This time HamTenna will see itself as a customer … with a project for the new station that will be born in 2021.
Let’s start with a BigBoy Prosistel rotator … an initial revision and a new pair of oversized gear wheels …
|Wind load area||4.1 m2||44.1 sq/ft|
|Rotating torque||3800 Kg/cm||3300 in/lb|
|Braking torque||29000 Kg/cm||2100 lb/ft
|Vertical load||850 Kg||1870 lb|
Work in progress: the rotator has been opened and I have checked the condition of the tapered bearing (perfect), the oil level and the condition of the seals.
No signs of wear were detected.
The external body of the engine and the transmission part was sandblasted, cleaned with a specific 3M product and painted with “thermo 800°C” paint, finally two coats of Plastidip spray were applied.
The pinion of the rotation plate has been greased abundantly and the old ring gear has been removed to be replaced with a larger one.
The electrical contact compartment has also been cleaned and all connections have been checked.
The old 7x1mm cable has been removed and will be replaced with a new fitting up to the control box located near the rotor.
BigBoy restored and tested :