Three wheeled digger for graveyards - has all wheel drive excavator compensating weight and hydraulic support legs

摘要

The digger has all wheel drive and steering that is powered hydrostatically and hydraulic brakes. These are driven by tandem hydraulic pumps and a three way valve is used to power the excavator. This provides manoeuvrability in a confined space. Two of the wheels are driven by a conventional driving/steering/braking axle. The third wheel (4) has separate drive and separate steering. The main outrigger (15) of the excavator has a counter weight (17), and there is a compensating weight (13) fitted between the excavator turntable (12) and support post (14). There are two hydraulically operated support legs attached to the chassis.