PRONAR PDK220 Operator's Manual page 50

PRONAR PDK220
FIGURE 4.7 Assembly of safety device
(1) - safety device; (2) - pin; (3) - cotter pin
To lock lifting arm in working position, assemble safety device (FIGURE 4.7). To this end,
remove cotter pin (3) and, holding safety device (1), remove pin (2). Lower safety device (1)
and attach to lifting arm using pin (2) with cotter pin (3).
In order to set mower in working position from transport position (FIGURE 4.8):
• release valve (1) of cylinder (FIGURE 4.8),
• release catch (2) by pulling catch cord (3) and operate hydraulic circuit in tractor
to lower lifting arm with cutting unit so that cutter bar rests freely on ground,
switching tractor hydraulic circuit to floating position.
4.12
SECTION 4