Maintenance - Textron Bob-Cat Operator's Manual

HYDRO
MIDSIZE
BLADE SHARPENING
Blades may be sharpened by filing or grinding, but with either method the balance of the blades must be main-
tained at 5/8 oz/in or less. Failure to maintain balance causes excess vibration, wear and shortened life of not
only the blades, but most all components of the machine. To balance a blade after sharpening: attach 1/8 ozof
weight 5" from center on the light end. This should make the light end the heavy end. If it does not: File or grind
the heavy end until the addition of weight makes the light end the heavy end.
NOTE:
„ Do not overheat or weaken the blades.
„ Do not straighten bent blades. Replace with new Ransomes blades.
If lift portion of blade is worn thin replace with a new Ransomes blade.
„ ALWAYS replace with Ransomes blades—do not use another manufacturer's blades as this could be
dangerous.
„ Replace cracked or bent blades.
BLADE REMOVAL
1. Use a box wrench or socket with a long breaker bar
to remove spindle bolt under cutter deck.
2. Slip tube over breaker bar or wrench if necessary to
gain leverage.
3. Keep hands clear as blades may rotate when bolt
releases.
4. When changing blades, wear thickly padded gloves.
5. Block blades from turning by using a piece of wood.
6. Follow these instructions to prevent injury when bolt
releases.
NOTE: To prevent blade from turning, place block of
wood at A, with grain perpendicular to blade.
BLADE RE-INSTALLATION
1. Place the desired number of spacers (no more than
2) on the spindle bolt below the cutter deck between
the blade and spindle shaft.
2. Insert the cutter spindle bolt (from bottom) complete
with washer, blade and spacers.
3. Place remaining spacer(s) on the spindle bolt above
the cutter deck between the conical washer and nut
(as shown). This washer must be against the pulley
so that the blade bolt clamps the top bearing inner
raceshown). This washer must be against the pulley
so that the blade bolt clamps the top bearing inner
race between the pulley and the shaft. Improper
assembly can allow the shaft to spin in the bearing.
This is not covered under warranty.
4. Replace nut and tighten to 70 ft-lbs.
NOTE: No spacers may be below the cutter deck when
using Versadeck mulching blades.

MAINTENANCE

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