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15
3.3.15 Remove the belt cover supports from the belt cover and mount them to the deck
using the 5/16-18 x .75 screws (Item 41) and whizlock nuts (Item 38).
3.3.16 Units with serial numbers below 260,000 will require modifications to the
discharge chute tabs per the instructions in adapter kit 103-1369. Follow the
instructions included in the kit before proceeding with the blower installation.
60 AND 72 INCH UNITS ONLY (52 INCH UNITS CONTINUE AT 3.3.21)
3.3.17 Install the belt cover mounting stud (Item 27) included.
For 60 inch units only, install the spacer (Item 29), two 7/16 spring disk
washers (Item 30) and the plastic knob (See figure 10). The knob does not
need to be tightened against the washers at this time.
FIGURE 10
3.3.18 Install the mounting pin weldment (Item 18) to the blower assembly using the 3/8-
16 x .75 bolts (Item 28) and whizlock nuts (Item 24). Maximum deck clearance
will be provided if the bolts are installed from below the mounting pin. The mount
pin can be installed in two positions. For 60 inch decks the pin should be installed
as far away from the bumper end as possible. For 72 inch decks that pin should
be installed close to the bumper end (See figure 11).
FIGURE 11
3.3.19 Install the belt (Item 13) onto the blower by working it around the impeller sheave.
3.3.20 72” units below serial number 260,000 will require the deck to be modified by
adding the accessory mounting tube. Exmark kit 103-0583 contains the parts and
templates required. Follow the instructions in this kit. These decks will also
require drilling the hole at the front upper corner of the discharge opening to ½
inch diameter (See figure 12). Touch up with red paint Exmark P/N 850337.