Section 6 Maintenance; Blades; Check Blade Condition; Remove Blades - EVH MFG HARDEE 1198W Operator And Maintenance Manual

Section 6
MAINTENANCE
Danger
NEVER attempt any checks, repairs or adjustments
with the tractor engine running or the power take-off
engaged. Adjustment of rotating parts while tractor
engine is running can result in serious personal injury
or death if the PTO accidentally engages.

BLADES

Check Blade Condition

Danger
Excessively worn or dull mower blades, or replacement
or sharpening of only one mower blade can cause
excessive mower vibration, damage to the gearbox and
structural damage to the mower. Excessive vibration
can cause rotating parts to break and fly off the mower,
resulting in serious injury or death to the operator or
bystanders.
 Lift and support mower by approved means.
Danger
Lift and support mower by approved means only. The
mowers weigh BETWEEN 1,525 and 3,590 pounds and
will cause severe injury or death if it falls on the
operator during maintenance. Support the mower with a
supporting device having a capacity for at least 1 ½
times the weight or the mower (e.g. – 2,170 pound
mower = 3,255 pound lifting device capacity).
 Check mower blades for sharpness and condition.
Replace worn mower blades in pairs only.

Remove Blades

 Disconnect driveshaft from gearbox.
 Rotate blade bolt access cover (on top of the
mower deck in front of the gearbox) from over the
access hole.
 Turn blade holder to position blade bolt under
access hole.
 Remove blade bolt and blade.
Removing Blade Bolt
1198W MULTI-SPINDLE ROTARY MOWER

Remove Blade Holder

 Lock gearbox shaft by an approved means.
 Remove cotter pin from shaft.
 Back off set bolt.
Removing Blade Holder Nut
Danger
The blade holder is heavy and will cause serious
personal injury or death if it falls on the operator.
Support the holder by an approved means before
proceeding to the next step.
 Remove set bolt and nut.
 Remove slotted nut, washer and blade holder.

Replace Blade Holder

 Lift blade holder onto gearbox shaft.
 Install set bolt and nut.
 Install washer and slotted nut. Tighten the nut.
 Install cotter pin on gearbox shaft.
Danger
A loose blade holder could cause the gearbox shaft to
break under load, causing the holder to fly out from
under the mower. This could cause damage to the
mower and serious personal injury or death to the
operator or bystanders. Ensure that the slotted nut is
tight against the holder and that the cotter pin is in good
condition.

Replace Blades

 Rotate blade bolt access cover away from access
hole in mower deck.
 Position holder so that a blade-mounting hole is
directly beneath access hole.
 Position blade on holder.
 Install and tighten blade bolt.
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Hardee by EVH