Service manual

Groundsmaster 3280−D/3320Page 9 − 10P.T.O. System
Align P.T.O. Pulley to Electric Clutch Pulley
Check Pulley Alignment
1. Park machine on a level surface, lower cutting deck
(or implement), stop engine, engage parking brake and
remove key from the ignition switch.
NOTE: Because the clutch pulley and P.T.O. pulley have
different thicknesses, check pulley alignment at pulley
grooves.
2. Measuring at the bottom of the pulleys, check that
the clutch and P.T.O. pulley grooves are aligned within
.060” (1.5 mm).
3. If the pulley grooves are not aligned within .060” (1.5
mm), the P.T.O. bearing locking collars must be loos-
ened and the P.T.O. shaft moved to get proper pulley
alignment.
Adjust Pulley Alignment
1. With the P.T.O. belt installed, adjust the belt tension
screw until the compression spring begins to compress.
2. Loosen and remove set screws that secure front and
rear flange bearing locking collars to P.T.O. shaft. Using
the blind hole in each bearing collar as a striking point,
unlock collars from P.T.O. shaft with a punch by rotating
the collars clockwise as viewed while facing forward.
3. Shift the position of the P.T.O. shaft and pulley until
the P.T.O. pulley groove is aligned with the clutch pulley
groove.
4. Using the blind hole in each bearing collar as a strik-
ing point, lock collars to P.T.O. shaft with a punch by ro-
tating the collars counterclockwise as viewed while
facing forward.
5. After tightening locking collars on P.T.O. flange bear-
ings, recheck pulley alignment to ensure that alignment
did not change.
6. Apply Loctite #242 to locking collar set screws. Install
set screws into collars and torque from 85 to 100 in−lb
(9.6 to 11.3 N−m).
7. Adjust P.T.O. drive belt tension (see Traction Unit
Operator’s Manual).