Tiger JD5085-5115M T4F, Mounting And Operating Instructions

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MAINTENANCE
TRIPLE FLAIL Maintenance Section 4-20
©2016 Alamo Group Inc.
MAINTENANCE
REVERSING MOWER ROTATION OF SIDE AND REAR FLAIL MOWERS
To reverse the rotation of the side and hydraulically
driven rear flail, a different idler arm is needed only
for side flail. Part No. TF4346 is used in standard
rotation. Part No. TF4345 is used in reverse
rotation.
Before attempting this procedure, be sure all dirt is
cleaned away from the motor and around all hose
connections. This will prevent the oil from becoming
contaminated.
1. Start by removing the belt shield from the flail mower.
2. Remove the locking and adjusting nut, spring washer and spring from the idler tensioning rod.
3. Disconnect the tensioning rod from the idler arm.
4. Remove the idler arm with the pulley attached.
5. Remove the idler pulley from the idler arm and reinstall in the short end of the new idler arm.
Reinstall the idler arm and pivot pin. The pivot pin is installed into the hole in the pivot bracket closest to the
idler pulley. When assembling for
standard cut rotation, the idler arm is installed with the idler pulley toward the
front of the mower with the pivot pin in the front hole. When assembling for reverse rotation, with smooth cut
knives, the idler arm is installed with the pulley toward the rear of the mower with the pivot pin in the rear hole.
Now disconnect the hoses and fittings from the motor and remove the taper-lock hub and pulley from the motor
by removing the three hub bolts from the existing positions and inserting simultaneously into the threaded
holes. Remove the four bolts holding the motor. Rotate the motor 180° so the hump is opposite the prior
position. Reinstall the motor bolts and torque to 75 ft. lbs. Reconnect the hoses and fittings to the motor in the
same configuration as before, i.e. the hose that was connected to the front port on the motor should now be
connected to the port that is now facing the front.
Reinstall the taper-lock hub and pulley on the motor by installing the hub bolts in the original holes and
tightening until the hub just contacts the pulley. Then, position the pulley on the motor shaft approximately
3/16” beyond the idler pulley and tighten and torque the hub bolts to 18 ft./lbs. Be sure the pulleys are vertically
aligned when tight (see
Figure MntP-R-0096 ), loosen and readjust if needed.
Reinstall the belts and idler tensioning rod. Tighten and lock the tensioning rod as shown previously in the
maintenance section. Reinstall the belt shield.
With the motor rotation changed, now all of the knives on the cutter shaft must be changed as required. The
cutter shaft rotates in the same direction as the tractor tires when going forward for standard cut knives. The
shaft rotates opposite to standard rotation for smooth cut knives. Smooth cut knives should be installed so the
cutting edge is forward.