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MAINTENANCE
Spindle Housing Bolts -
These bolts fasten the spindle housing to the deck. The bolts should be checked for tightness each morning
before the unit is started. They should be torqued to 400 ft./lbs.
Motor Bolts
Examine the bolts that fasten the hydraulic motor onto the spindle housing. Tighten to 85 ft./lbs.of Torque. If
these bolts become loose the motor could shift back and forth on the spindle housing breaking the motor
flange.
Speed Changer Bolts
The bolts that fasten the mount plate to the tractor and the bolts that fasten the speed changer to the adapter
plate are part of this maintenance. These bolts can become loose through vibration and should be checked. If
left loose, misalignment of the speed changer and tractor PTO could result which could damage the speed
changer. The speed changer bolts should be torqued to 100 ft./lbs. The mount plate bolts should be torqued in
accordance with the following bolt sizes: 1/2" - 100 ft./lbs.; 5/8" - 160 ft./lbs.;
7/8" - 400 ft./lbs.
Pump Bolts
The bolts that fasten the pump to the speed changer should be checked, as these could become loose through
vibration. They should be torqued to 100 ft./lbs.
Axle Arm Bolts
Inspect the axle arm bolts for proper tightness. The nut should not be loose. DO NOT over tighten these
bolts. Tighten the nut on the bolt until it contacts both ears. Then tighten it 1/2 revolution more. The axle arm
must be free to move up and down. If one of these bolts slipped out, the suspension system would fail.
Winch Stand Bolts
These bolts fasten the winch stand to the deck. These bolts should be checked each morning before the
machine is started. If the winch stand has any play, forward or backward, these bolts need to be tightened.
Extreme forces are transmitted thru the winch stand when the wings are raised. If the bolts are loose the winch
stand could twist or break.
Drawbar Bolt
Inspect the drawbar bolt for fit. The nut should be pulled up on the bolt such that the clevis is held straight on
the drawbar. Use the washers provided to shim any difference between the clevis opening and the drawbar
thickness. This will assure proper action of the tongue and clevis. If the tongue clevis sags down, the nut
should be tightened.
Blade Carrier Retaining Nut
Check that the cotter pin is present and not damaged. If the nut is missing, retorque as described in Blade
Carrier Installation.
FALCON 15/10 03/09
Maintenance Section 5-9
© 2009 Alamo Group Inc.
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