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4. General operation instructions
The Campbell roller with its hitch at the front comprises three main elements:
–
Main frame of the roller
–
Working roller
–
Smoothing harrow (optional)
The main frame
is a load-bearing element of the entire structure and the working
roller. The frame is composed of two elements: a three-point universal hitch (so-called front
drawbar) and a load-bearing frame of the roller. It is made of hollow sections. The working
roller is attached to the frame. The frame of the roller is equipped with two supporting feet
that secure it from accidental tilt.
The roller drawbar
is a structure component used to attach the roller to the tractor.
The special design of the hitch allows for attaching the roller to the front three-point linkage
of the tractor. The front drawbar is equipped with two rollers that make it possible to change
the drawbar position with regard to the frame during the operation on the front three-point
linkage of the tractor.
The working roller
is an element comprising several iron casts located on the
working roller axle equipped with bearings on two self-adjustable bearing units. The
bearings are contamination and misalignment resistant, thanks to which the operation is
trouble-free. Chains are pulled between the wheels to protect against soil sticking to the
roller.
The smoothing harrow
is a set of two rows of teeth working in front of the roller that
crush and even the soil. It is mounted to the frame with a crank that is also used for its
adjustment.
4.1.
Before using the roller
The roller is usually supplied for sale in a ready-to-operate condition on the front three-
point linkage. Due to transport limitations, the roller may be delivered with a disassembled
harrow. Before commencing the work, the roller should be mounted on the frame on the
opposite side of the tractor suspension system (Fig. 2).
