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Section 3: Tractor Hook-up & Unhook
SB1051, SB1064, SB1574, & SB2584 with S/N 881640- Snow Blowers 370-027M
10/08/14
Table of Contents
Driveline Shortening
Figure 3-3
3. Hold inner and outer drivelines parallel to each other:
a. Measure 1" (“B” dimension) back from outer
driveline universal joint shield and make amark at
this location on the inner driveline shield.
b. Measure 1" (“B” dimension) back from the inner
driveline universal joint shield and make a mark at
this location on the outer driveline shield.
4. Remove driveline from tractor PTO shaft and
gearbox shaft.
5. Measure from end of inner shield to scribed mark
(“X” dimension). Cut off inner shield at the mark. Cut
same amount off the inner shaft (“X1” dimension).
6. Measure from end of outer shield to scribed mark
(“Y” dimension). Cut off outer shield at the mark. Cut
same amount off the outer shaft (“Y1” dimension).
7. Remove all burrs and cuttings.
8. Continue with“Check DrivelineMaximum Length”.
Check Driveline Maximum Length
Refer to Figure 3-4:
The driveline maximum allowablelength must, when fully
extended, have a minimum overlap of profile tubes by not
less than 1/2 the free length with both inner and outer
profile tubes being of equal length.
1. Apply multi-purpose grease to the inside of the outer
shaft and reassemble the driveline.
2. Assemble the two driveline profiles together with just
1/2 overlapping of the profile tubes as shown. Once
assembled,measure andrecord maximumallowable
length here. ________
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Driveline Maximum Extended Length
Figure 3-4
3. Continue with “Check Driveline Interference”.
Check Driveline Interference
1. Make certain driveline yokes and safety chains are
properly attached. See steps 10 -12 on page 15.
2. Start tractor and raise Snow Blower just enough to
remove support blocks from under the unit.
3. Slowly engage tractor hydraulic 3-point control lever
to lower Snow Blower while checking for sufficient
drawbar clearance. Move drawbar ahead, aside, or
remove if required.
Refer to Figure 3-5:
4. With PTO off, raise implement fully up to make the
following checks below. If driveline exceeds any of
the limits listed, set tractor 3-point lift limiter at a
height that will keep the driveline within its lift limits
and to avoid premature driveline breakdown.
• Driveline does not exceed 25
o
up.
• Driveline does not exceed maximum allowable
length recorded in step 2 under “Check Driveline
Maximum Length”.
Maximum PTO Driveline Movement During Operation
Figure 3-5
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Outer Shielding has been removed for clarity.
IMPORTANT: Avoid premature driveline breakdown.
A driveline that is operating must not exceed an
angle of 25 degrees up or down.
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