Photographic record of upgrade processes, improvements, and procedures
Improved gearbox design
Removeable module;
400:1 gear ratio;
Heavy cast aluminum casing;
Thick, milled, tempered gears;
Assembled under factory conditions to ensure alignment.
Special requests:
elevation assembly refurbishment
<------ original
refurbished------->
Refurbished assembly incorporates an accessable mounting configuration accepting all necessary original components.
Original drive motors replaced with units incorporating standard armatures and long life brushes. Field installations are now approaching 2 years (10 billion rotations) with no measureable brush wear.
Similar refurbishments are undertaken with the azimuth drive assemblies.
Motion stability using motion sensing feedback
For installations using computerized motion control sensing, improve motion stability is accomplished by installing a motion sensing feedback control card into the existing card cage.
--------->
Pedestal refurbishment operation
>------>------------->------->
Old pedestals are dismantled,
Original gearbox moulded mountings are removed and surfaces are milled flat,
Improved gearbox designs are mounted,
Original bearings are removed,
Axles are rebuilt, aligned, and milled for installation of replacement heavy load bearings,
Protective covers installed to reduce the possibility of damage during tower lifts,
Refurbished pedestal & riser are installed and readied for operation.
------->------->