Toro 38700 User manual

Walk-Behind Rotary Broom
Service Manual
LCE/Residential Products/
Siteworks

This service manual was written expressly for Toro and Lawn-Boy service technicians. The Toro Company has made
every effort to make the information in this manual complete and correct.
Basic shop safety knowledge and mechanical/electrical skills are assumed. The Table of Contents lists the systems and
the related topics covered in this manual.
The Toro Walk-Behind Rotary Broom, model year 2014, is covered in this manual. The manual may also be specied for
use on later model products.
Due to the compact design, parts were removed for photographic purposes when necessary.
We are hopeful that you will nd this manual a valuable addition to your service shop. If you have any questions or
comments regarding this manual, please contact us at the following address:
The Toro Company
Residential and Landscape Contractor Service Training Department
8111 Lyndale Avenue South
Bloomington, MN 55420
The Toro Company reserves the right to change product specications or this manual without notice.
© 2014 The Toro Company
All Rights Reserved
ABOUT THIS MANUAL

TABLE OF CONTENTS
Walk-Behind Rotary Broom Service Manual TOC-1
Chapter 1 - Safety Information........................................................................................................1-1
Chapter 2 - Specications & Maintenance..................................................................................... 2-1
Checking the Sweeping Path ..............................................................................................................................................2-3
Adjusting the Broom Height.................................................................................................................................................2-4
Adjusting Broom Side Angle................................................................................................................................................2-4
Recommended Maintenance Schedule...............................................................................................................................2-5
Checking the Engine Oil Level ............................................................................................................................................2-6
Checking the Traction Cable ...............................................................................................................................................2-6
Checking for Loose Hardware.............................................................................................................................................2-6
Changing the Engine Oil......................................................................................................................................................2-7
Checking the Tire Pressure.................................................................................................................................................2-7
Checking the Condition of the Belts ....................................................................................................................................2-7
Lubricating the Broom Angle Lock Pin and Hex Shaft.........................................................................................................2-8
Checking the Spark Plug.....................................................................................................................................................2-8
Checking the Broom Cable..................................................................................................................................................2-9
Checking the Broom Shaft Shear Pin..................................................................................................................................2-9
Checking the Broom Segments.........................................................................................................................................2-10
Adjusting the Traction Cable..............................................................................................................................................2-10
Adjusting the Broom Drive.................................................................................................................................................2-11
Adjusting the Wheel Clutch Cable.....................................................................................................................................2-11
Troubleshooting.................................................................................................................................................................2-12
Chapter 3 - Controls.........................................................................................................................3-1
Sub System Handle.............................................................................................................................................................3-2
Sub System Control Panel ..................................................................................................................................................3-3
Shift Lever ...........................................................................................................................................................................3-4
Shift Rod Adjustment...........................................................................................................................................................3-4
Auger Control ......................................................................................................................................................................3-4
Auger Cable Adjustment......................................................................................................................................................3-5
Traction Control...................................................................................................................................................................3-5
Traction Cable Adjustment ..................................................................................................................................................3-6
Clutch Cable Replacement Removal...................................................................................................................................3-6
Replacement .......................................................................................................................................................................3-7
Chapter 4 - Belt Replacement..........................................................................................................4-1
Subsystem Engine...............................................................................................................................................................4-2
Auger Belt Removal.............................................................................................................................................................4-3
Auger Belt Installation..........................................................................................................................................................4-4
Traction Belt Removal.........................................................................................................................................................4-5
Chapter 5 - Traction Drive System.................................................................................................. 5-1
Sub System Frame..............................................................................................................................................................5-2
Sub System Clutch Drive.....................................................................................................................................................5-3
Sub System Clutch Pack.....................................................................................................................................................5-4
Chapter 6 - Filament Replacement..................................................................................................6-1
Subsystem Broom...............................................................................................................................................................6-2
Broom Mounting..................................................................................................................................................................6-3
Broom Core.........................................................................................................................................................................6-4
Filament Removal................................................................................................................................................................6-5
Replacement Filament Installation ......................................................................................................................................6-6

SAFETY INFORMATION
This symbol means WARNING or
PERSONAL SAFETY INSTRUCTION –
read the instruction because it has to do
with your safety. Failure to comply with
the instruction may result in personal
injury or even death.
This manual is intended as a service and repair manual
only. The safety instructions provided herein are for
troubleshooting, service, and repair of the Toro
Walk-Behind Rotary Broom.
General Information
Think Safety First
Avoid unexpected starting of engine…
Always turn off the engine and disconnect the spark plug
wire(s) before cleaning, adjusting, or repair.
Avoid lacerations and amputations…
Stay clear of all moving parts whenever the engine is
running. Treat all normally moving parts as if they were
moving whenever the engine is running or has the
potential to start.
Avoid burns…
Do not touch the engine, mufer, or other components,
which may increase in temperature during operation, while
the unit is running or shortly after it has been running.
Avoid res and explosions…
Avoid spilling fuel and never smoke while working with
any type of fuel or lubricant. Wipe up any spilled fuel or
oil immediately. Never remove the fuel cap or add fuel
when the engine is running. Always use approved, labeled
containers for storing or transporting fuel and lubricants.
Avoid asphyxiation…
Never operate an engine in a conned area without proper
ventilation.
Avoid injury from batteries…
Battery acid is poisonous and can cause burns. Avoid
contact with skin, eyes and clothing. Battery gases can
explode. Keep cigarettes, sparks and ames away from
the battery.
Avoid injury due to inferior parts…
Use only original equipment parts to ensure that important
safety criteria are met.
Avoid injury to bystanders…
Always clear the area of bystanders before starting or
testing powered equipment.
Avoid injury due to projectiles…
Always clear the area of sticks, rocks or any other debris
that could be picked up and thrown by the powered
equipment.
Avoid modications…
Never alter or modify any part unless it is a factory
approved procedure.
Avoid unsafe operation…
The Power Clear operator’s manuals contain safety
information and operating tips for safe operating practices.
Operator’s manuals are available online through your Toro
parts source or:
The Toro Company
Publications Department
8111 Lyndale Avenue South
Bloomington, MN 55420
!
Walk-Behind Rotary Broom Service Manual 1-1
Safety Information
1

SAFETY INFORMATION
NOTES
Walk-Behind Rotary Broom Service Manual
1-2

Specications & Maintenance
2
SPECIFICATIONS & MAINTENANCE
2-1
Walk-Behind Rotary Broom Service Manual
Checking the Sweeping Path ......................................... 2-3
Adjusting the Broom Height............................................ 2-4
Adjusting Broom Side Angle...........................................2-4
Recommended Maintenance Schedule..........................2-5
Checking the Engine Oil Level ....................................... 2-6
Checking the Traction Cable ..........................................2-6
Checking for Loose Hardware........................................2-6
Changing the Engine Oil.................................................2-7
Checking the Tire Pressure............................................ 2-7
Checking the Condition of the Belts ............................... 2-7
Lubricating the Broom Angle Lock Pin and Hex Shaft....2-8
Checking the Spark Plug................................................2-8
Checking the Broom Cable.............................................2-9
Checking the Broom Shaft Shear Pin............................. 2-9
Checking the Broom Segments.................................... 2-10
Adjusting the Traction Cable.........................................2-10
Adjusting the Broom Drive.............................................2-11
Adjusting the Wheel Clutch Cable.................................2-11
Troubleshooting............................................................ 2-12

Walk-Behind Rotary Broom Service Manual
SPECIFICATIONS & MAINTENANCE
NOTES
2-2

SPECIFICATIONS & MAINTENANCE
2-3
Walk-Behind Rotary Broom Service Manual
Model 38700, 23740
Engine Kohler®208cc Command Pro Multi Season
Clearing Width 36” (11.0m)
Starter Recoil
Fuel Capacity 1 Gallon (4.1 L)
Engine RPM 3600 ± 100 PRM
Broom Speed 200 RPM
Direct Drive Speed 6/2 Variable Speed
Steering Power Steering - RH/LH Clutch
Oil Capacity .63 Qt (.06 L)
Weight 323 lbs (146.5kg)
Width 46.5” (118cm)
Length 73.0” (185.5cm)
Height 41.5” (105.5cm)
Tire Pressure 17-20 psi (117-138 kPa)
Broom Angle Adjustments 3 position 30° each direction
Checking the Sweeping Path
A broom sweeps with the tips of its bristles. When too
much down pressure is applied, the broom is no longer
using its tips; the broom is now working with the sides of
the bristles. This limits the icking action of the bristles,
sweeping effectiveness, and can decrease broom life.
1. Drive to a at dusty area and stop the machine.
2. With the engine running move the throttle midway
between Slow and Fast. Engage the broom and
allow the broom to sweep for approximately
30 seconds.
3. Disengage the broom and stop the engine.
4. Wait for all moving parts to stop before leaving the
operating position.
5. Turn the engine On/Off switch to the Off position.
6. Make sure the area swept equals the length of the
broom and a maximum width of 2 - 4” (51-102 mm).
7. Adjust the broom height if necessary.
Fig. 001
A. 2 – 4” (51-102 mm) Maximum Width
B. Length of Broom
C. Swept Area
A
B
C
Specications & Maintenance
2

Adjusting Broom Side Angle
1. Disengage the broom and stop the engine.
2. Wait for all moving parts to stop.
3. Push the lever down using the right hand thumb (A)
(Fig. 003).
4. Squeeze the left wheel clutch lever to the handle
and push the broom housing to the desired angle;
the broom can rotate 19° to the right or left, or
straight ahead.
5. Once the broom is positioned, release the broom
angle lever. Release the left wheel clutch lever and
make sure the broom is locked into place.
Adjusting the Broom Height
1. Drive to a at dusty area and stop the machine.
2. Disengage the broom and stop the engine.
3. Wait for all moving parts to stop before leaving the
operating position.
4. Turn the engine On/Off switch to the Off position.
5. To adjust the broom height, remove and retain the
pin from the adjuster sleeve and caster wheel tube.
6. Raise or lower the caster wheel tube to achieve the
sweep area as stated in “Checking the Sweeping
Path” (page 2-3). Select any hole combination
that is in alignment to place and latch the retaining
pin; match the same position on the other side.
7. For ne tuning adjustments, slide the adjuster sleeve
one pin hole up or down on the caster wheel tube to
adjust the broom height in 1/8” (3 mm) increments
(Fig. 002). Repeat for the other caster wheel.
• To raise the broom in 1/8” (3 mm) increments,
slightly raise the adjuster sleeve and insert the pin
into the next pin hole below the current hole used.
• To lower the broom in 1/8” (3 mm) increments,
slightly lower the adjuster sleeve and insert the pin
into the next pin hole above the current hole used.
8. Once the desired height is reached, secure the pin
on each caster wheel. Recheck the sweeping area.
A. Caster Wheel Tube
B. Positions To Achieve 1/8” (3 mm) Increments
C. Pin
D. Adjuster Sleeve
2-4 Walk-Behind Rotary Broom Service Manual
SPECIFICATIONS & MAINTENANCE
Fig. 002
A
B
C
D
Fig. 003
A

SPECIFICATIONS & MAINTENANCE
2-5
Walk-Behind Rotary Broom Service Manual
MAINTENANCE SERVICE INTERVAL MAINTENANCE PROCEDURE
After the rst 2 hours Check the traction cable.
Check the broom cable.
After the rst 5 hours Check the engine oil.
Before each use or daily
Check the engine oil level.
Check for loose hardware.
Check the broom shaft shear pin.
Every 50 hours Check the tire pressure.
Check the condition of the belts.
Every 100 hours Change the engine oil (more frequently in severe conditions).
Lubricate the broom angle lock pin.
Every 160 hours Check the spark plug.
Yearly
Check the traction cable.
Lubricate the hex shaft.
Check the broom cable.
Yearly or before storage
Check the air pressure in the drive tires and inate them to 116–137 kPa
(17–20 psi).
Drain the gasoline and run the engine to dry out the fuel tank and
the carburetor at the end of the season.
Inspect and replace the traction drive belt, if necessary.
Recommended Maintenance Schedule
Specications & Maintenance
2