Exmark Lazer HP Lawn Mower User Manual


 
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3.3.6 Install the double sheave (Item 12) onto the right spindle shaft. Install the spring disk
washer and nut. Make sure that the spring disk washer cone is installed towards nut
(See figure 6). Torque the sheave nut to:
5/8 - 11 nut (15/16 Hex) - 75-80 ft. lbs.
3/4 -16 nut (1 ¼ Hex) 140-145 ft. lbs.
NOTE: On units with wrench flats on the spindle just above the blade use a
1-inch wrench on the flat sides of the spindle shaft to prevent the spindle
from turning. On units that do not have a wrench flat, block the blade
rotation with a block of wood between the blade and baffles as indicated in
the blade service section of the Lazer Z operator’s manual. Do not use the
blade bolt to prevent rotation. Check blade bolt torque after completing this
installation (115 – 120 ft. lbs.).
FIGURE 6
3.3.7 Re-install the deck drive belt in the lower groove of the double sheave. Install
the plug (Item 24) into the bore of the double sheave.
3.3.8 Remove the discharge chute from the deck. Discard the mounting hardware, but
save the discharge chute for use during side discharge operation. The chute
pivot pin (Item 21) and hairpin (Item 22) may be stored in the pivot holes on the
discharge chute during bagging operation.
52 inch units only (60 and 72 inch units skip to step 3.3.15)
3.3.9 Remove the belt guide on the blower (See figure 7)
3.3.10 Install the belt (Item 13) included in the completing kit onto the blower assembly
as shown.
3.3.11 Reinstall the belt guide removed in step 3.3.9.
FIGURE 7
BELT ROUTING