Install Blower Assembly - Exmark Ultra VAC QDS LAZER Z Operator's Manual

3.2.18 All Units: Tighten all the hardware that attaches the Ultra Vac mount to the
machine frame. Start with the screws that hold the mount weldment to the rear of
the unit and work forward.
3.2.19 All Units with a ROPS installed: Torque all lower roll bar hardware attached to
the machine frame to 30-35 ft-lbs. (41-47 N-m).
3.2.20 All Lazer Z units SN 352,000 – 509,999: Reinstall the rear wheels and lower the unit
from the jack stands.
3.2.21 Apply a light coat of grease to the front and rear of the upper tube of the mount
weldment. Install the hopper assembly (Item 1) onto the mount by slipping the
hook portion over the top mounting tube of the mount weldment. Secure the
assembly to the mount using the clevis pins (Item 19) and hairpins (Item 20).
3.2.22 Attach the handle link to the actuation arm on the hopper assembly.

3.3 INSTALL BLOWER ASSEMBLY

3.3.1 Lower the deck fully. Remove the right hand belt cover. Remove the belt cover
mounting stud that protrudes from the deck.
3.3.2 Remove the deck drive belt from around the right hand spindle sheave.
3.3.3 Support the right mower blade and shaft so that it will not fall out of the deck
when the right sheave nut is removed.
3.3.4 Remove the right sheave nut, spring disk washer, and sheave from the spindle shaft.
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.
3.3.5 Apply a light coat of Mobile HTS grease (or food grade antisieze) to the top
portion of the spindle shaft where the sheave mounts.
3.3.6 Install the jackshaft (Item 12) onto the right spindle shaft. Install the spring
disk washer and nut. Torque the sheave nut to 140-145 ft. lbs. Make sure
that the spring disk washer cone is installed towards nut. See Figure 5.
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.
FIGURE 4
UPPER ROLL BAR INSTALLATION
11