Operation Of Drive Transmission - PRONAR PDK220 Operator's Manual

SECTION 5

5.3 OPERATION OF DRIVE TRANSMISSION

DANGER
Before proceeding to check or adjust tension of drive transmission belt set first turn off
tractor engine and remove key from ignition.
Drive transmission system maintenance consists of periodic inspection, regulation and
possible change of vee belts. To inspect vee belts (FIGURE 5.5), check the tensioning of
belts through the inspection opening (3). The deflection (A) of a vee belt measured in the
inspection opening (3) in the housing should not exceed 30 mm. Belt tension is checked
individually for each of the belts. If belts have slightly different lengths, tension should be
adjusted for the shortest belt. Belt tension may be altered using nut (2) of spring tensioner
(1).
If one of the belts is damaged the whole belt set should be changed. To replace vee belts,
loosen spring tensioner (1), unscrew nuts (4) and remove guard (6). After belt replacement,
put guard (6) in place and adjust belt tensioning (FIGURE 5.5).
TIP
There are 4 HB-2650 belts in the mower drive transmission.
ATTENTION!
Do NOT operate mower with the required number of belts.
5.9
PRONAR PDK220