PRONAR PRONAR PDT260, Operator'S Manual

Page: 39 / 97

SECTION 3 Pronar PDT260; PDT260C, PDT300; PDT 300C, PDT340
3.5
3.3 LINKAGE
The main element of the mower linkage (figure 3.2) is the three-point linkage frame (1),
equipped with two lower pins (4) and upper pin (5) for connection to the tractor's rear three
point linkage. Moving arm (3) allows the cutting unit to swing backwards. Lifting arm (2)
raises the cutting unit. To relieve the cutting unit, springs (6) are used, whose tension can be
adjusted by changing the positioning of the pin (8). Using the pin (9) lifting arm can be
interlocked (2) when mower is disconnected from the tractor.
FIG. 3.2 Mower linkage
(1) three-point linkage frame; (2) lifting arm; (3) moving arm; (4) three-point linkage lower
hitching eye pin; (5) central connection pin; (6) stay springs; (7) spring catch; (8) spring
tensioning pin; (9) lifting arm interlock pin; (10) cylinder lock