Hi,
Just some pics.
485 kg beast with 18 inch rims - 10hp Sachs 2-stroke water cooled diesel 500 ccm - 6 speed forward - 2 speed reverse - 2 pto speeds - differential lock - handlebar adjustment up - as well as 45° sideways possible in 3 positions each.
Has front pto with overrunning clutch for front mower.
Rear pto shaft = 28mm diameter with 8mm key groove
Steering brake on each handlebar side - when both brakes need to be applied simultaneously as when going downhill with trailer, I use the parking brake lever.
Units like this should NOT be run without competent trailer brakes in nowadays public traffic - the braking power of the Hummel is less than adequate at Vmax of 12,7 km/h
More pics.
Trailer hitch attachment rotates internally - so rotational movement of the trailer tongue is thus accomplished.
Lube plan riveted to top of hood