Use special tool 109-2979 to hold spindle from
rotating. Do Not use the blade bolt to prevent
rotation.
6. Install the UltraVac drive sheave onto the right
spindle shaft. Install the washer that is supplied with
the UltraVac drive kit (item 38) and the nut removed
in step 5. Torque the sheave nut to: 5/8-18 inch nut
(15/16 Hex) to 90-110 ft-lb (122-149 N-m).
Use special tool 109-2979 to hold spindle from
rotating (see Figure 15). Do Not use the blade
bolt to prevent rotation.
Figure 15
1.
5/8-18 inch Sheave
nut-torque to 90-110 ft-lb
(122-149 N-m)
3.
UltraVac drive sheave
(item 12)
2.
Washer (item 38)
4.
Special tool 109-2979
7. Reinstall blade and torque bolt to:
For units with a 1/2-20 x 2 inch blade bolt,
torque to 50-60 ft-lb (75-81 N-m).
8. Reinstall the deck drive belt in the lower grove of
the double sheave. Install plug (item 40) into bore
of top sheave.
9. Install deflector (item 39) at the front right corner
of deck as shown in Figure 16. Use carriage bolt,
nut and washer that retains right corner of adjustable
front baffle.
Figure 16
All Units:
1. 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.
2. Install the belt cover mounting stud (item 27).
For 60 inch units only, install the spacer (item 29),
two 7/16 spring disc washers (item 30) and the
plastic knob (see Figure 17). The knob does not
need to be tightened against the washers at this time.
Figure 17
1.
Knob
3.
Mounting stud (item 27)
2.
Spring disc washers (item
30)
4.
Spacer (item 29)
3. Install the mounting pin weldment (item 18) to the
blower assembly using the 3/8-16 x 3/4 inch bolts
12
