Hitch lock

[geoff]

I use a high quality motorcycle chain & lock,versatile,and you can unhich the chipper with security still intact when you have to drag & then chip in areas of theft concern.

 

Leaving the chipper on the tow ball & chipping isn't good for rear wheel bearings on the truck.

[armchairarborist]

big chain and padlock here too, made by fortknox 13mm chain and heavy duty padlock, probably puts me over the weight limit mind..

[Mark Bolam]

I've got a big chain and hardened padlock, which I can use when the chipper is on the truck, but I can't lock the chipper onto the security post with it.

 

Darren, that is exactly what my hitch is, but had a barrel inside it that automatically locked every time. The cheapo little key snapped off in the barrel so I had to drill it out.