Buhler Allied FK331 - Manual (Page 12)

74” Allied Snowblower
9
OPERATING INSTRUCTIONS
1. Do not operate the blower in the fully raised position. The three-point hitch on
some tractors raises high enough to cause the PTO shaft to bind. This can
cause damage to the PTO shaft and/or to the hitch and pins.
ALERT: PTO shaft angle should not exceed 20 degrees for optimum
performance and life. Damage may occur to PTO and/or snowblower if angle
becomes more extreme.
2. Depth of cut can be partially controlled by tilting the blower forward or backward.
Adjust the top link of the tractor hitch so the snowblower is just slightly tilted
back when resting on the ground.
CAUTION: Excessive backward tilt may
cause the "U" joints to flutter resulting in PTO shear bolt failure.
3. Adjust the lower link sway chains or blocks on the tractor to restrict side
movement of the blower when operating.
4. Run the blower at low rpm to check operation before blowing snow.
5. The snowblower has two shear bolts to protect the tractor and blower in case
a large object enters the blower. PTO shear bolt (Two 5/16" x 1"-Grade 5) Auger
shear bolt (1/4" x 1"-Grade 5). Shear bolts should be fastened with a lock nut or
two jam nuts. These bolts must be kept tight to prevent wear of the bolt and bolt
holes.
6. Never run PTO shaft at over 600 rpm.
7. Chain tension: Slack on the lower side of the chain should be 3/8 to ½”.
8. Lubrication:
a)
The spout clamps and rings should be periodically lubricated with
gun grease.
b) PTO shaft universal joints and square shaft slide should be greased daily.
c) Regularly oiling the chain will significantly increase the life of the chain.
d) The grease fitting on the hydraulic spout swivel arm should be
kept lubricated.
9. Periodically check all bolts for tightness. The bolt holding on the fan and the
bearing bolts are of particular importance.
10. DANGER: Always stop blower for servicing or unplugging. The PTO
should be disengaged before dismounting from the tractor.
11. CAUTION: Always check to see that both ends of the PTO shaft are
securely attached as per instructions every time you are preparing to use the
snowblower.
12. Shear Sprocket: The Shear Sprocket (#52) should be checked at the beginning
of every season to make sure it will spin freely. With time this sprocket could
corrode and seize
which will not allow the shear bolt to break if something jams
in the snowblower auger. Clean to loosen if necessary.
13. When replacing bearings or tightening a loose bearing collar, always tighten
collar in the direction of shaft rotation using a center punch or a similar tool.