Service Manual

Rev. C
ProForce Debris BlowerPage 5 -- 16Blower Assembly
13.If equipped (machines with serial numbers above
310000000), locate and retrieve fin mounts, fin spacers
and thin spacers from between inner housing and outer
housing (Fig. 14 or 15). Note location of these compon-
ents for assembly purposes.
14.Lift inner housing assembly out of the outer housing.
15.If necessary, disassemble inner housing assembly
(see Rotor Shaft in this section).
Installation (Fig. 13)
1. Assemble inner housing if it was disassembled (see
Rotor Shaft in this section).
2. Place inner housing assembly with the rotor shaft
pointing upwards onto two (2) supports (2” x 4” or equiv-
alent). Carefully lower outer housing around inner hous-
ing assembly. T hen, place 9/16” (14.3 mm) thick support
between supports and outer housing (Fig. 16). This pro-
cess should allow alignment of mounting holes in inner
housing flanges to outer housing.
3. On machines with serial numbers above
310000000, install fin mounts, fin spacers and thin
spacers (if equipped) between inner housing and outer
housing (Fig. 14 or 15).
NOTE: When assembling inner and outer housings, do
not fully tighten any screws until all screws are installed
to inner housing flanges and stator vanes. Also, use
hand tools rather than air impact tools during assembly.
4. On machines with serial numbers above 313000000
(Fig. 15), apply Loctite #242 (or equivalent) to threads
of screws used to secure inner and outer housings.
5. Make sure that holes in inner housing flanges align
with outer housing holes. I nstall and finger tighten eight
(8) screws (item 15) into threads of inner housing
flanges. Do not fully tighten screws at this time.
6. Install stator vanes to inner and outer housing:
A. Position a vane between inner and outer housing.
Make sure that rounded end of vane is orientated to-
ward rotor shaft (Fig. 17).
B. Tilt vane and engage vane lugs to inner housing
holes. While keeping vane lugs in inner housing
holes, rotate vane to align threaded hole of vane with
outer housing hole.
C. Install and finger tighten flange head screw (item
12) into threads of vane. Do not fully tighten screw at
this time.
D. Repeat process for all twenty--four (24) vanes.
1. Outer housing
2. Inner housing assembly
3. Stator vane (24 used)
4. Flange head screw
5. Flange head screw
Figure 17
ROUNDED
DISCHARGE
END
INTAKE
END
END
2
3
1
4
5
7. Tighten fasteners in the following order to secure as-
sembly:
A. Use nutdriver to hand tighten the eight (8) screws
(item 15) that secure inner housing flanges to outer
housing. Use a crossing pattern while tightening the
screws.
B. Use nutdriver to hand tighten the flange head
screws (item 12) that secure the twenty--four (24)
stator vanes to outer housing. Use a crossing pattern
while tightening the screws.
C. Torque flange head screws (item 15) that secure
inner housing f langes 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 (item 12) 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.