John Deere SB1280 Manual De Usuario

OM 0391SB1274-A 

21 

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A popular habit is to change the snowblower 
angle in order to obtain a better scraping effect. 
This practice can become harmful to the driveline 
since the angle at each end is unequal. This 
results in a fan speed variation as well as a 
drastic increase of load on cross and bearings. 
To be avoided: It is recommended to always 
keep tractor driveline and snowblower input shaft 
parallel. 

 

 

IMPORTANT:  Before using the equipment, 
make sure the driveline is not too long.  At 
working position, the two half drivelines must 
intersect each other sufficiently to insure 
maximum efficiency but there must not be any 
interference.  

1.  To determine the "L" length for  your tractor 

model first find the "X" factor by measuring 
the horizontal distance between the end of 
the tractor's drive shaft and the end of the 
snowblower's driven shaft when the 
snowblower is in transport position as shown 
on Figure 12.  

2.  Choose in the table below the "Y"  factor 

according to the tractor category and deduct 
that number from "X" to determine "L" which 
is the center-to-center length between the 
universal joints. 

 

 
 
 
 

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