Buhler Commercial Snowblower User Manual

Page 12

Commercial Snowblower

ASSEMBLY INSTRUCTIONS – cont’d.

b)

Using tape or a bright colored marking pen, mark on the outer

shields the position where the shaft is completely pushed together

and the position where you have a 4” overlap. Watch these marks

when moving the blower through all possible operating angles to

see that the PTO shaft stays within this range.

With the engine on the tractor shut off, attach the PTO shaft. The

tractor end has a standard 6-spline end with a spring loaded locking

collar. The snowblower end has a clamp-style yoke with a 3/8” key

way. Slide the yoke onto the gearbox shaft with the 3/8” key

supplied. Lock the yoke in place with the ½” x 3” bolt and lock nut

fitted through the groove in the gearbox shaft. After tightening the

bolt, insert and tighten the 3/8” socket set screw supplied.

Caution: Always check to see that both ends of the PTO shaft are securely

attached every time the Snowblower is used. This should always

be done with the tractor engine off.

Check that the PTO shaft does not bottom or separate with the

blower in the extreme high and low positions. A longer optional

PTO shaft is available if the standard shaft is too short. Check for

free movement of all parts in various raised positions; particularly

the PTO shaft.

NOTE: Excessive U-joint wear and shear pin failure may result if

the tractor PTO angle exceeds 20º. The drawing below gives an

approximate way to check this angle. With the PTO half extended,

the tractor output should not be over 32 inches high. Use 34 inches

if the PTO is nearly compressed.