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OPERATION
TM60/72/84/100 02/11 Operation Section 4-13
© 2011 Alamo Group Inc.
OPERATION
“Bottoming Out” Check Procedure
• Disconnect driveline from the tractor and slide
the profiles together until fully compressed.
• Place a mark on the inner shield 1/8” from the
end of the outer shield.
• Reattach the driveline to the PTO Shaft.
• Raise the mower from the lowest to the highest
position and watch the driveline as it
approaches the mark. If the distance between
the mark and the end of the outer shield tube
becomes less than 2” at any point, the driveline
must be shortened. OPS-R-0004_L
Note: When raising the mower, clearance must be
maintained between driveline and mower deck. If
necessary set stop on 3-point control lever to limit
the lift height of mower.
Shorten the driveline profiles as follows:
• Remove the driveline from the tractor.
• Position the mower (Lift and Semi-Mount Type -
Raise and lower/ Pull Type - Turn sharply) to
the point with the shortest distance between
the tractor PTO shaft and cutter gearbox. Shut
down the tractor and securely block the mower
in this position.
• Pull driveline apart and reattach yoke to PTO
shaft.
• Hold driveline sections parallel to one another
and measure back 1” from yoke of each shaft
and place mark on opposite section. Cut this
length off with a saw.
• Round off all sharp edges and debur.
• Thoroughly grease then reinstall the driveline.
• Recheck for proper operation.
Engagement Check Procedure
• With the driveline attached, position the mower to the point where the telescoping driveline is at its
maximum extension. Completely shut down the tractor and secure in position.
• Mark the inner driveline shield 1/8” from the end of the outer shield.
• Disconnect the driveline from the tractor and separate the two driveline halves.
• Measure the distance from the mark to the end of the inner profile. This length is the amount the driveline
profiles were engaged.
• If the engaged length is less than 8-1/2” for driveline, the shaft is considered too short and should be
replaced with a longer shaft. Consult an authorized dealer to purchase the required driveline length.
NOTE: When raising the mower, at least 1” clearance must be maintained between the driveline and the
mower deck. If necessary, place an upper lift stop on the 3-point hitch control lever to limit the height the
mower can be raised. OPS-R-0005-L