PTO Installation Instructions for Snowblower
For Better PTO Shaft and Gearbox Operation
A proper initial installation will give you years of satisfactory service on your equipment. Please
read carefully, following instructions which have been specially made to help you and make you
satisfied of your purchase.
Unfortunately, snowblowers will be faced with forgotten or
hidden objects under the snow, such as: chain, tires, stones, pieces
of wood, etc. Inspite of all our efforts, machines are not built to
resist all those conditions.
Danger: Too big tractors
It is dangerous to use a that is too big or too powerful. The tractor will always be able to
overload the blower, even if the machine is already at maximum capacity. Tractor being very
high, too large angles at PTO universal joints will result, and the life of the universal joints will
be shortened dramatically.
P T O Shaft angles
PTO shafts are made to transmit power with angle at universal joints. However these
angles should be kept to a minimum. Larger angles shorten the life of PTO. Take for example a
snowblower sold for a tractor horse-power of 60-75 HP which would be attached to a 60HP
tractor operating at maximum capacity of (60HP continuous).
Estimated life in hours
[email protected] RPM
How to determine PTO angle
A =PTO height at tractor
B= PTO height at blower
L = Cross center distance in working position
1) Lower blower on ground
2) Measure A,B and L
3) Subtract B of A (A-B=C)
4) Divide L by C (L/C=F
50 Compare F Factor in the table below
to find PTO angle. (Interpolate if