Ventrac Operators Manual

GENERAL OPERATION

Turning Radius The 4520 power unit has three mounting positions for the steering cylinder that determine the power unit’s turning radius.

Roll-Over Protection System

WARNING Keep the ROPS locked in the upright position and the seat belt securely fastened during operation. Failure to do so could result in serious injury or loss of life. The 4520 power unit is equipped with a fold down ROPS that allows the power unit to access areas of low overhead clearance. Lower the roll bar only when ab- solutely necessary and raise the roll bar to the upright position as soon as clearance allows. WARNING Do not wear a seat belt when the roll bar has been lowered to the down position. To lower the roll bar: 1. Remove the pins from the right and left hinge plates (1). 2. Fold the roll bar down and install the pins in the hinge plates (2) to lock in place.

1

2

3

1. Standard position: this position is the standard position and enables the tightest turning radius. 2. Dual wheel position: the steering cylinder must be installed in this position when operating with dual wheels. The resulting turning radius is larger than position number 1. 3. Cab and Versa-loader position: the steering cyl- inder must be installed in this position when a cab is installed or when operating the Versa-loader. The resulting turning radius is larger than position number 2.

2

1

To raise the roll bar: 1. Remove the pins from the right and left hinge plates (2). 2. Raise the roll bar to the upright position and install the pins in the hinge plates (1) to lock in place.

Operation - 37

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