Installing The Blower Assembly - Exmark UltraVac 126-8680 Setup Instructions

5. Apply a light coat of Mobil HTS grease (or food
grade antisieze) to the top portion of the spindle
shaft where the sheave mounts.
6. Install double sheave onto the right spindle shaft.
Install the spring disc washer and nut. Make sure
that the spring disc washer cone is installed towards
nut (see Figure 5). Torque the sheave nut to 140-145
ft-lb (190–197 N-m).
Block the blade rotation with a block of wood
between the blade and baffles as indicated in the
blade service section of the Operator's manual.
Do Not use the blade bolt to prevent rotation.
1. Torque sheave nut to 140-145 ft-lb (190–197 N-m).
2. Install with cone towards nut.
Check blade bolt torque after completing this
installation.
Torque blade bolt to 50-60 ft-lb (75-81 N-m).
7. Re-install the deck drive belt in the lower groove of
the double sheave. Install the plug into the bore of
the double sheave.
Figure 5
1. Belt cover bracket
2. Belt cover
3. Knob

Installing the Blower Assembly

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1. Pull the spring loaded idler back and slip the belt
over the top deck sheave.
1. Impeller sheave
2. Deck sheave
2. Position the belt cover at an angle and slide it under
the mower frame (see Figure 8).
4
Figure 6
4. Belt
5. Deck sheave and nyloc
plug
Figure 7
3. Spring loaded idler
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