MK Martin Meteor 120, Operator'S Manual

Page: 34 / 44

34
Previous examples clearly demonstrate that universal joint angle is directly related with
life of the PTO. In order to reduce angle, it is necessary to increase the distance
between snowblower and tractor.
Too Large Angles at PTO Joints Reasonable Angles at PTO Joints
To Avoid Acceptable
If it is impossible to increase the distance between snowblower and tractor, in order to maintain a
reasonable angle at the PTO, it is recommended to use a larger size PTO that is a greater capacity
PTO. (please refer to your dealer for more details).
For snowblowers of 100HP, an additional gearbox is also available that can be mounted
on the existing snowblower gearbox , which increases the input shaft height, reducing the angle at
PTO joints. This Gearbox has an input speed of 1000RPM w h ich greatly increases PTO capacity.
Non-Equal Angles at PTO Joints Equal Angles At PTO Joints
To Avoid Recommended
Angles at each end of PTO
A popular habit is to change snowblower angle in order to obtain a better scraping effect. This
practice can become harmful to the PTO if the angle is unequal at each end, There will be fan
speed variation (as the fan speed s up and slow down twice per revolution) as well as a drastic
increase of loading on the cross and bearings. To avoid it is recommended to keep tractor PTO
and snowblower input shaft a lw ays parallel.