Service Manual
Table Of Contents
- Title Page
- Revision History
- Reader Comments
- Preface
- Table Of Contents
- 1 - Safety
- 2 - Product Records and Maintenance
- 3 - Engine
- Kohler Engine Service Manual
- 4 - Electrical System
- General Information
- Electrical Diagrams
- Special Tools
- Troubleshooting
- Electrical System Quick Checks
- Component Testing
- Ignition Switch
- Hour Meter
- Fuse
- Fusible Link
- Relays
- Remote Transmitter (Machines with Single Channel Controller
- Remote Transmitter (Machines with Multi Channel Controller)
- Wireless Control Module (Machines with Single Channel Controller)
- Wireless Control Module (Machines with Multi Channel Controller)
- Diode Assembly (Serial Number Below 310000000)
- Service and Repairs
- 5 - Blower Assembly
- 6 - Chassis
- 7 - Electrical Diagrams
- Electrical Schematic Model 44538 (S/N Below 310000000)
- Electrical Schematic Models 44538 and 44539 (S/N From 310000000 to 311999999) and Model 44542
- Electrical Schematic Models 44538 and 44539 (S/N Above 312000000)
- Engine Electrical Diagram (S/N Below 310000000)
- Engine Electrical Diagram (S/N Above 310000000)
- Control Module Wake Up
- Crank Circuits
- Run Circuits
- Engine Speed Increase Circuits
- Nozzle Rotation Circuits
- Wire Harness Drawing Model 44538 (S/N Below 310000000)
- Wire Harness Diagram Model 44538 (S/N Below 310000000)
- Wire Harness Drawing Models 44538 and 44539 (S/N 310000000 to 311999999) and Model 44542
- Wire Harness Diagram Models 44538 and 44539 (S/N 310000000 to 311999999) and Model 44542
- Wire Harness Drawing Models 44538 and 44539 (S/N Above 312000000)
- Wire Harness Diagram Models 44538 and 44539 (S/N Above 312000000)
![](/manual/toro/44542/service-manual-english/images/img-63.png)
Rev. C
ProForce Debris BlowerPage 5 -- 10Blower Assembly
Rotor Shaft (Serial Number Above 313000000)
1. Inner housing
2. Rotor shaft
3. Flange head screw (8 used)
4. Bearing cap
5. End cap
6. Retaining ring (4 used)
7. Bearing (2 used)
8. Rear cap
9. O--ring
Figure 7
9
8
5
6
4
90 to 100 in--lb
(10.2 to 11.3 N--m)
Loctite #242
90 to 100 in--lb
(10.2 to 11.3 N--m)
Loctite #242
1
2
3
3
6
7
7
6
NOTE: The rotor shaft and bearings can be serviced
without removing inner housing from machine.
NOTE: Rotor shaft for machines with serial number be-
low 313000000 is described earlier in this section. If in-
ner housing has been replaced by a later housing
version, use appropriate illustration and service proced-
ures.
Removal (Fig. 6)
1. Position machine on a firm, level surface. Make sure
engine is stopped and remove key from the ignition
switch. Chock wheels to prevent machine from moving.
2. To prevent unexpected machine operation, discon-
nect the negative battery cable from the battery terminal
(see Battery Service in t he Service and Repairs section
of Chapter 4 -- Electrical System). Position discon-
nected negative cable away from the negative battery
terminal.
3. Remove nozzle and nozzle pulley from rear of outer
housing (see Nozzle Assembly Removal in this section).
4. Remove top grill to allow access to blower assembly
(see Guards Removal in the Service and Repairs sec-
tion of Chapter 6 -- Chassis).
5. Remove blower drive shaft from machine (see Blow-
er Drive Shaft Removal in this section).
6. Remove rotor assembly (see Rotor Assembly Re-
moval in this section).
7. Remove four (4) flange head screws that secure
bearing cap (item 4) to inner housing.
8. Carefully slide rotor shaft assembly from inner hous-
ing. Note slot in inner housing that locates tab on end
cap (item 5) for assembly purposes. Rear cap will re-
main in inner housing.
9. Using Figure 6 as a guide, remove b earing cap (item
4), end cap (item 5), retaining rings (item 6) and bear-
ings (item 7) from rotor shaft as necessary.
10.Remove and discard O--ring (item 9) from rear cap.
11. If necessary, remove rear cap (item 8) from inner
housing.
12.Inspect rotor shaft and bearing bores of bearing cap
and rear cap for wear or damage. Replace parts as nec-
essary.