SSM60 & SSM72 (SZ330) 3. ADJUSTMENT OF CUTTING HEIGHT
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1 FIG. 90 (1) Mower deck (4) Rear lift arm adjust nut
(2) Height adjust dial (5) Link rod
(3) Adjust bolt (6) Blade
a. Start the engine and lift the mower deck. b. Set the cutting height adjustment dial(2) to the commonly used position. c. Lower the mower deck and stop the engine. d. Set the right and left blades parallel to traveling direction of the machine as shown FIG. 91. e. Adjust the front edge heights of the both blades by the bolts(3) so that these fits the height of the dial(2). -If the front linkage of the deck has downward play, measure the height of blade while pushing mower deck downward by the hand. -If the height of the blade cannot be lowered until the height of the dial(2), adjust the both heights to the lowest height.
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f. Adjust the rear edge height of the right blade by nut (4) on right side, so that the height fits the front edge height. g. Measure the rear edge height of left blade. -If the rear edge height of the left blade is higher than front edge height, adjust the height of rear edge by nut(4) so that a play of the rod(5) is lost. -If the rear edge height of the left blade is lower than front edge height, adjust the height by nut(4).
FIG. 91
h. If the front linkage has the downward play, lose the play by tightening the nut(4) on opposite side. -When tightening the nut(4), don't make the difference between front and rear edge heights over 10mm. -On the side of which the nut(4) was not tightened on the above procedure, tighten the nut(4) so that a play of the rod(5) is lost.
FIG. 92
i. Make sure that all lock nuts are tightened. NOTE: When adjusting the mower blade, leave the discharge cover attached. 82
