PRELIMINARY – For Toro Distributor
and Toro Company
use only.
ProForce Debris Blower
Page 5
−
12
Blower Assembly
Installation (Fig. 8)
1. If rotor shaft was removed from inner housing, as-
semble inner housing (see Rotor Shaft Installation in
this section).
2. Set outer housing on workbench with the intake end
up (Fig. 10).
NOTE:
When assembling inner and outer housings, do
not fully tighten any screws until all screws are installed
in inner housing flanges and stator vanes. Also, use
hand tools rather than air impact tools during assembly.
3. Install inner housing to outer housing:
A. Lower inner housing assembly into outer housing
with the rotor shaft pointing upwards.
B. Align holes in inner housing flanges with outer
housing holes. Support inner housing so holes re-
main aligned.
C. Install and finger tighten eight (8) flange head
screws (item 14) into threads of inner housing
flanges. Do not fully tighten screws at this time.
4. Install stator vanes to inner and outer housing:
A. Position vane between inner and outer housing.
Make sure that rounded end of vane is orientated to-
ward rotor shaft (Fig. 10).
B. Tilt vane and engage vane lugs to inner housing
holes.
C. While keeping vane lugs in inner housing holes,
rotate vane to align threaded hole of vane with outer
housing hole.
D. Install and finger tighten flange head screw (item
12) into threads of vane. Do not fully tighten screws
at this time.
5. Tighten fasteners in the following order to secure as-
sembly:
A. Use nutdriver to hand tighten the eight (8) flange
head screws that secure inner housing flanges to
outer housing. Use a crossing pattern while tighten-
ing the screws.
B. Use nutdriver to hand tighten the twenty
−
four
(24) flange head screws that secure the stator vanes
to outer housing. Use a crossing pattern while tight-
ening the screws.
C. Torque flange head screws that secure inner
housing flanges to outer housing from
90 to 100 in
−
lb (10.2 to 11.2 N
−
m)
. Use a crossing pattern while
torquing the screws.
IMPORTANT: DO NOT overtighten screws that
secure stator vanes to outer housing. If screws
are overtightened, threads in vanes could be
damaged.
D. Torque screws that secure stator vanes to outer
housing from
10 to 20 in
−
lb (1.2 to 2.2 N
−
m)
. Use a
crossing pattern while torquing the screws.
CAUTION
To prevent personal injury, make sure that outer
housing assembly is properly supported as it is
positioned to machine. Assembly weighs
approximately 70 pounds (31.8 kg).
6. Position outer housing assembly to machine. Secure
outer housing to fan mounts with cap screws and flange
nuts.
7. Install rotor assembly (see Rotor Assembly Installa-
tion in this section).
8. Install blower drive shaft (see Blower Drive Shaft
Installation in this section).
9. Install top grill to machine (Fig. 9).
10.Install nozzle pulley and nozzle to rear of outer hous-
ing (see Nozzle Assembly Installation in this section).
11. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from
10
to 15 ft
−
lb (14 to 20 N
−
m)
. Make sure that battery cover
is secured.
