Advertisement
G. MOWER BLADE REMOVAL, BALANCING & INSTALLATION
Sharp blades can cause bodily injury if not handled properly.
When removing the blade, it is recommended that a block of wood be placed between the blade
and the underside of the mower deck. This will allow the removal of the blade without the need to
hold the blade by hand.
Always balance the mower blades each time they are sharpened.
Out of balance mower blades cause excess vibrations which lead to premature bearing failures,
bolts coming loose, and overall deterioration of the wing mowers.
Always properly tighten the blade bolts to the specified torque. Failure to do so can
lead to unwanted loosening of the blade and damage to the blade holding saddle.
The Model MR55H uses the Kunz Engineering Part # (202141) blade bolt. This particular hex
head bolt is a 3/4" – 16NF x 1-1/4" long, grade 5 and it's proper torque is 300 ft-lbs.
To ease in the blade installation process, use the same block of wood and method used during
the removal of the blades.
H. LUBRICATION
There are five lubrication points on the rough cut mower -- one spring-loaded idler pivot, two
caster wheel pivots, and two blade spindles. Lubricate at approximately 10 hr. intervals or more
often as required in dusty conditions. Lubricate the blade spindles 2-5 pumps every 50 hours.
(The bearings have trash guard seals to hold the seals in place during lubrication.) Lubricate with
a high grade of pressure gun grease.
Note: Do not over grease blade spindles. Blade spindles are initially greased at the factory.
Greasing before 50 hrs. may cause bearing seal damage which will result in premature
bearing failure.
I. STORAGE
If the mower is stored outside, the engine should be covered to prevent water from getting inside
the engine during heavy rainstorms. See the Engine Manual for additional information.
9
Advertisement
