G. Mower Blade Removal, Balancing & Installation

Note: If the brake stud is adjusted to the end of the slot and the brake stud clearance is under 1/2” then it is time to replace the belt.

CAUTION: If brake stud is not set in correct position, under-braking or over-braking may occur. If over-braking occurs, premature belt failure or a possible fire could occur due to excessive friction and overheating.

G.MOWER BLADE REMOVAL, BALANCING & INSTALLATION

CAUTION: 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.

CAUTION: Always balance the mower blades each time they are sharpened.

Out of balance mower blades cause excessive vibrations which lead to premature bearing failures, bolts coming loose, and overall deterioration of the mower.

CAUTION: 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 Models MR44K and MR44B use 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 its 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

Turn off fuel shut off valve which is located on the underside of the gas tank. 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.