Great Plains HD Series Operator Manual - Manual (Page 3)

3
OPERATING INSTRUCTIONS FOR MARTENS FRONT
FOLD HARROWS
Unfold to field position.
1. Attach tongue of harrow securely to the towing tractor using sufficient drawbar pin.
Connect cleaned hydraulic couplers of harrow to tractor. Raise jack and swing to
horizontal position WARNING: Make certain harrow is securely attached to the
towing tractor. Tip-over may occur during unfolding if harrow comes loose from
tractor.
2. Disconnect transport safety chains from wing.