Toro Groundsmaster e3200 User manual

Form No. 3461-541 Rev A
60in Side or Rear Discharge
Rotary Mower
Groundsmaster
®
e3200 2-Wheel Drive
T raction Unit
Model No. 31890 —Serial No. 400000000 and Up
Model No. 31891 —Serial No. 400000000 and Up
Register at www .T oro.com.
Original Instructions (EN)
*3461-541*

This product complies with all relevant European
directives. For details, please see the Declaration of
Incorporation (DOI) at the back of this publication.
W ARNING
CALIFORNIA
Proposition 65 W arning
Use of this product may cause exposure
to chemicals known to the State of
California to cause cancer , birth defects,
or other reproductive harm.
Introduction
This rotary-blade lawn cutting unit is mounted to
a ride-on machine and is intended to be used
by professional, hired operators in commercial
applications. It is primarily designed for cutting grass
on well-maintained lawns in parks, sports elds,
and on commercial grounds. Using this product for
purposes other than its intended use could prove
dangerous to you and bystanders.
Read this information carefully to learn how to operate
and maintain your product properly and to avoid
injury and product damage. Y ou are responsible for
operating the product properly and safely .
V isit www .T oro.com for product safety and operation
training materials, accessory information, help nding
a dealer , or to register your product.
Whenever you need service, genuine T oro parts, or
additional information, contact an Authorized Service
Dealer or T oro Customer Service and have the model
and serial numbers of your product ready . Figure 1
identies the location of the model and serial numbers
on the product. W rite the numbers in the space
provided.
Important: W ith your mobile device, you can
scan the QR code on the serial number decal (if
equipped) to access warranty , parts, and other
product information.
g431233
Figure 1
Model 31890 shown
1. Model and serial number location
Model No.
Serial No.
This manual identies potential hazards and has
safety messages identied by the safety-alert symbol
(Figure 2 ), which signals a hazard that may cause
serious injury or death if you do not follow the
recommended precautions.
g000502
Figure 2
1. Safety-alert symbol
This manual uses 2 words to highlight information.
Important calls attention to special mechanical
information and Note emphasizes general information
worthy of special attention.
© 2023—The T oro® Company
81 1 1 L yndale A venue South
Bloomington, MN 55420
2
Contact us at www .T oro.com.
Printed in the USA
All Rights Reserved

Contents
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
General Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Cutting Unit Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety and Instructional Decals . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1 Preparing the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Installing the Cutting Unit to the T raction
Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Leveling the Cutting Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Greasing the Cutting Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Attachments/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Evaluating the Quality of Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Leveling the Cutting Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Adjusting the Height of Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1
Adjusting the Cutting-Unit Pitch . . . . . . . . . . . . . . . . . . . . . . . . 12
Adjusting the Anti-Scalp Rollers . . . . . . . . . . . . . . . . . . . . . . . . 13
Adjusting the Skid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Adjusting the Flow Baf e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Positioning the Flow Baf e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Using the Side Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Operating T ips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Recommended Maintenance Schedule(s) . . . . . . . . . . . 16
Daily Maintenance Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Greasing the Castor-Arm Bushings . . . . . . . . . . . . . . . . . . 17
Removing the Cutting Unit from the T raction
Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Servicing the Bushings in the Castor
Arms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Servicing the Cutting Blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Replacing the Grass Deector . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Checking the Electrical Cables . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cleaning under the Cutting Unit . . . . . . . . . . . . . . . . . . . . . . . . 22
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Safety
General Safety
This product is capable of amputating hands and
feet and of throwing objects. Always follow all safety
instructions to avoid serious personal injury
•Read and understand the contents of this
Operator ’ s Manual before starting the machine.
•Use your full attention while operating the
machine. Do not engage in any activity that
causes distractions; otherwise, injury or property
damage may occur .
•Do not put your hands or feet near moving
components of the machine.
•Do not operate the machine without all guards
and other safety protective devices in place and
functioning properly on the machine.
•Keep clear of any discharge opening.
•Keep bystanders and children out of the operating
area. Never allow children to operate the machine.
•Before you leave the operator ’ s position, do the
following:
– Park the machine on a level surface.
– Lower the cutting unit(s).
– Disengage the drives.
– Ensure that the parking brake is engaged.
– Shut of f the machine and remove the key .
– W ait for all movement to stop.
Improperly using or maintaining this machine can
result in injury . T o reduce the potential for injury ,
comply with these safety instructions and always
pay attention to the safety-alert symbol , which
means Caution, W arning, or Danger—personal safety
instruction. Failure to comply with these instructions
may result in personal injury or death.
3

Cutting Unit Safety•The cutting unit is only a complete machine when
installed on a traction unit. Read the traction
unit Operator ’ s Manual carefully for complete
instructions on the safe use of the machine.
•Stop the machine, wait for all moving parts to stop,
remove the key , and turn the battery-disconnect
switch to the O FF position before inspecting the
attachment after striking an object or if there is
an abnormal vibration in the machine. Make all
necessary repairs before resuming operation.
•Keep all parts in good working condition and all
hardware tightened. Replace all worn or damaged
decals.
•Use only accessories, attachments, and
replacement parts approved by T oro.
Safety and Instructional Decals
Safety decals and instructions are easily visible to the operator and are located near any area
of potential danger . Replace any decal that is damaged or missing.
decal1 16-8283
1 16-8283
1. W arning—read the Operator's Manual for instructions on
torquing the blade bolt/nut to 75 to 81 N∙m (55 to 60 ft-lb).
decal120-6604
120-6604
1. Thrown object hazard—keep bystanders away from the
machine.
2. Cutting/dismemberment hazard of hand, mower
blade—stay away from moving parts, keep all guards and
shields in place.
3. Cutting/dismemberment hazard of foot, mower blade—stay
away from moving parts, keep all guards and shields in
place.
decal133-8061
133-8061
4

decal127-0326
127-0326
1. Read the Operator's
Manual .
3. Remove the key and
read the Operator's
Manual before performing
maintenance.
2. Height of cut
Decal 131-1 180: Model 31890 only
decal131-1 180
131-1 180
1. Read the Operator's
Manual .
3. Bagging setting
2. Short, light grass; dry
conditions
4. T all, dense grass; wet
conditions
5

Decal 137-5945: Model 31890 only
decal137-5945
137-5945
1. Height of cut (inches/millimeters)
Decal 137-5946: Model 31890 only
decal137-5946
137-5946
1. Height of cut (inches/millimeters)
decal137-8127
137-8127
1. Attention—do not spray with high-pressure water .
Decal 144-0542: Model 31891 only
decal144-0542
144-0542
1. Height of cut
Decal 144-0543: Model 31891 only
decal144-0543
144-0543
1. Height of cut
decal144-7008
144-7008
1. W arning—turn the battery-disconnect switch to the O FF
position before performing maintenance.
6

decal147-2081
147-2081
1. Thrown object
hazard—keep bystanders
away from the machine.
3. Cutting/dismemberment
hazard of hands or feet,
mower blade—stay away
from moving parts.
2. Thrown object
hazard—keep the
deector in place, do
not operate the machine
with an open deck.
decal137-5949
137-5949
1. Height of cut
2. Mounting holes
7

Setup
Loose Parts
Use the chart below to verify that all parts have been shipped.
Procedure Description
Qty .
Use
1
No parts required
–
Prepare the machine.
Hex-head bolt 2
W asher 22
Height-of-cut pin
2
Install the cutting unit to the traction unit.
3
No parts required
–
Level the cutting unit.
4
No parts required
–
Grease the cutting unit.
W ARNING
If you leave the key in the switch, someone could accidentally start the machine and seriously
injure you or other bystanders.
Remove the key from the switch before you install the cutting unit.
Note: Determine the left and right sides of the
machine from the normal operating position.
1
Preparing the Machine
No Parts Required
Procedure
1. Park the machine on a level surface.
2. Use the display to turn of f the weight transfer
setting; refer to your traction unit Operator ’ s
Manual .
3. Move the lift arms to the lowest position.
4. Shut of f the machine and remove the key .
2
Installing the Cutting Unit
to the T raction Unit
Parts needed for this procedure:
2 Hex-head bolt
2 W asher
2
Height-of-cut pin
Procedure
1. Position the cutting unit in front of the traction
unit.
2. Push a lift arm down until the holes in the lift arm
line up with the holes in the castor arms, then
insert a washer and bolt through both arms.
3. Align the lift-arm holes with the castor-arm holes.
4. Use 2 hex-head bolts and 2 washers to secure
the castor arms to the lift arms ( Figure 3 ).
Ensure that the washers are positioned with the
curved side adjacent to the bolt head ( Figure 3 ).
If you have previously used the bolts to
install the cutting unit: Apply thread-locking
compound to the threads of the bolts.
8

g433394
Figure 3
1. Lift arm
3. W asher
2. Castor arm
4. Bolt
5. T orque the bolts to the appropriate specication:
•If you are using the bolts to install the cutting
unit for the rst time:
T orque the bolts to 256 to 313 N∙m (189 to
231 ft-lb).
•If you have previously used the bolts to
install the cutting unit:
T orque the bolts to 195 to 239 N∙m (144 to
176 ft-lb).
6. Insert the cutting-unit connector to the machine
connector ( Figure 4 ).
g433399
Figure 4
1. Machine connector
2. Cutting-unit connector
7. Use the machine-connector latches to secure
the connection ( Figure 5 ).
g451749
Figure 5
1. Latches
8. Set the height of cut; refer to Adjusting the
Height of Cut ( page 1 1 ) .
3
Leveling the Cutting Unit
No Parts Required
Procedure
Level the cutting unit; refer to Leveling the Cutting
Unit ( page 10 ) .
4
Greasing the Cutting Unit
No Parts Required
Procedure
Before operating the cutting unit, it must be greased
to ensure proper lubricating characteristics; refer to
Greasing the Castor-Arm Bushings ( page 17 ) . Failure
to properly grease the machine will result in premature
failure of critical parts.
9

Product Overview
Specications
Note: Specications and design are subject to
change without notice.
W idth
of Cut
Model No. 31890: 1.52 m (60 inches)
Model No. 31891: 1.52 m (60 inches)
Height
of Cut
Adjustable from 25 to 152 mm (1 to 6 inches) in 13
mm (1/2 inch) increments
Net
W eight
Model No. 31890: 190 kg (419 lb)
Model No. 31891: 200 kg (440 lb)
Attachments/Accessories
A selection of T oro approved attachments and
accessories is available for use with the machine
to enhance and expand its capabilities. Contact
your Authorized Service Dealer or authorized T oro
distributor or go to www .T oro.com for a list of all
approved attachments and accessories.
T o ensure optimum performance and continued safety
certication of the machine, use only genuine T oro
replacement parts and accessories. Replacement
parts and accessories made by other manufacturers
could be dangerous, and such use could void the
product warranty .
Operation
Note: Determine the left and right sides of the
machine from the normal operating position.
CAUTION
If you leave the key in the ignition switch,
someone could accidently start the machine
and seriously injure you or other bystanders.
Remove the key from the key switch and
turn the battery-disconnect switch to the O FF
position before you do any adjustments or
maintenance.
Evaluating the Quality of
Cut
Due to dif ferences in grass conditions and the
counterbalance setting of the traction unit, it is advised
that grass be cut and appearance checked before
formal cutting is started.
1. Park the machine on a level surface, lower the
cutting unit, shut of f the machine, remove the
key , and turn the battery-disconnect switch to
the O FF position.
2. Set the cutting unit to the desired height of cut;
refer to Adjusting the Height of Cut ( page 1 1 ) .
3. Check and adjust the front and rear traction-unit
tire pressure to the specied tire pressure in the
traction unit Operator ’ s Manual .
4. Check for bent blades; refer to Checking for a
Bent Blade ( page 19 ) .
5. Cut grass in a test area to determine if the
cutting unit is cutting at the appropriate height.
6. If cutting unit adjustments are still needed,
perform the following procedures:
A. Leveling the Cutting Unit ( page 10 )
B. Adjusting the Height of Cut ( page 1 1 )
C. Adjusting the Cutting-Unit Pitch ( page 12 )
Leveling the Cutting Unit
Note: Perform this procedure on a at, level surface.
1. Park the machine on a level surface, lower the
cutting unit, shut of f the machine, remove the
key , and turn the battery-disconnect switch to
the O FF position.
2. Rotate the blade on each outer spindle until the
ends face forward and backward.
3. Measure from the oor to the front tip of the
blade.
10

4. Raise the cutting unit to the T RANSPORT position.
5. Adjust the shims on the front caster forks to
match the desired height of cut.
6. Rotate the blades 180° and measure from the
oor to the rear-facing tip of the blade.
7. Loosen the lower jam nuts on the height-of-cut
chain U-bolt ( Figure 6 ).
g296783
Figure 6
1. Jam nuts
3. Height-of-cut chain
2. U-bolt
8. Adjust the nuts ( Figure 6 ) to raise or lower the
rear of the cutting unit so that the tips of the rear
blades are 6 to 10 mm (1/4 to 3/8 inch) higher
than the front tips.
9. T ighten the jam nuts.
Adjusting the Height of Cut
The height of cut is adjustable from 25 to 152 mm (1
to 6 inches) in 13 mm (1/2 inch) increments. T o adjust
the height of cut:
1. Park the machine on a level surface, raise the
cutting unit to the T RANSPORT position, shut
of f the machine, remove the key , and turn the
battery-disconnect switch to the O FF position.
2. Perform the following procedures:
•Position the castor wheel axles in the upper
or lower holes of the castor forks; refer to
Positioning the Castor-Wheel Axles ( page
1 1 ) .
•Add or remove an equal number of spacers
from the castor forks; refer to Positioning the
Castor-Fork Spacers ( page 1 1 ) .
•Use the pins in height-of-cut plates to position
the lift-arm chains; refer to Positioning the
Height-of-Cut Chain ( page 12 ) .
Positioning the Castor-Wheel
Axles
Position the castor-wheel axles in the same holes in
both castor forks. Refer to Figure 7 and Figure 8 to
determine the correct holes for the setting.
g031661
Figure 7
1. T ensioning cap 4. Axle mounting holes
2. Spacers 5. Castor wheel
3. Shims
g296889
Figure 8
1. Castor wheel height-of-cut
mounting holes
2. Castor fork height-of-cut
spacers
Note: If you operate with a 64 mm (2-1/2 inch) height
of cut or higher , set the axle bolt in the lower hole to
prevent grass buildup. If you detect grass buildup
while operating, reverse the machine direction to pull
any clippings away from the wheel/fork area.
Positioning the Castor-Fork
Spacers
1. Remove the tensioning cap from the spindle
shaft ( Figure 7 ) and slide the spindle out of the
castor arm. Put the 2 shims onto the spindle
1 1

shaft as they were originally installed. These
shims are required to achieve a level across the
entire width of the cutting units.
2. Slide the appropriate number of spacers onto
the spindle shaft to get the desired height of cut
(Figure 7 ).
Refer to Figure 8 to determine the combinations
of spacers for your desired height-of-cut setting.
Note: Y ou may use the shims in any
combination above or below the castor-arm hub
(as required) to achieve the desired height of
cut or cutting-unit level.
3. Push the castor spindle through the castor arm.
4. Install the shims (as they were originally
installed) and the remaining spacers onto the
spindle shaft.
5. Install the tensioning cap to secure the assembly .
Positioning the Height-of-Cut
Chain
1. Remove the pins that secure the height-of-cut
chains to the rear of the cutting unit ( Figure 9 ).
g296784
Figure 9
1. Height-of-cut chain
2. Pin
2. Refer to the height-of-cut decal to determine the
appropriate hole for your desired height of cut.
Note: The decal [shown in Safety and
Instructional Decals ( page 4 ) ] is adjacent to
each height-of-cut plate.
3. Mount the height-of-cut chains to the desired
height-of-cut hole with the pin.
The pin should be installed in the lowest
height-of-cut chain link. The chain ( Figure 9 )
should not be twisted.
Adjusting the Cutting-Unit
Pitch
A blade pitch of 6 to 9.5 mm (1/4 to 3/8 inch) is
recommended (i.e., the back of the blade plane is 6
to 9.5 mm (1/4 to 3/8 inch) higher than the front). A
pitch larger than 9.5 mm (3/8 inch) results in less
required power , larger clippings, and a poorer quality
of cut. A pitch less than 6 mm (1/4 inch) results in
more required power , smaller clippings and a better
quality of cut.
1. Park the machine on a level surface, lower the
cutting unit, shut of f the machine, remove the
key , and turn the battery-disconnect switch to
the O FF position.
2. Set the cutting unit to the desired height-of-cut.
3. Rotate 1 blade so that it points straight forward.
4. Using a short ruler , measure from the oor to
the front tip of the blade. Rotate the blade tip to
the rear and measure from the oor to the tip
of the blade.
5. Subtract the front dimension from the rear
dimension to calculate the blade pitch.
6. Loosen the jam nuts at the top or bottom of the
height-of-cut chain U-bolt ( Figure 10 ).
g296783
Figure 10
1. Jam nuts
3. Height-of-cut chain
2. U-bolt
7. Adjust the other set of nuts to raise or lower the
rear of the cutting unit and attain the correct
mower-deck pitch.
8. T ighten the jam nuts.
12

Adjusting the Anti-Scalp
Rollers
Whenever you change the height-of-cut, adjust the
height of the anti-scalp rollers ( Figure 1 1 or Figure 12 ).
g431236
Figure 1 1
Model 31980 shown
g431247
Figure 12
Model 31981 shown
1. Park the machine on a level surface, lower the
cutting unit, shut of f the machine, remove the
key , and turn the battery-disconnect switch to
the O FF position.
2. Adjust the anti-scalp rollers as shown in Figure
13 .
Note: Select a hole so the anti-scalp roller
is positioned to the nearest corresponding
height-of-cut desired.
g296902
Figure 13
Front rollers shown
1. Anti-scalp roller 3. Flange nut
2. Bushing 4. Bolt
13

Adjusting the Skid
Mount the skid in the lower position when operating
in height of cuts equal to or higher than 64 mm (2-1/2
inches) and in the higher position when operating in
height of cuts lower than 64 mm (2-1/2 inches).
1. Park the machine on a level surface, lower the
cutting unit, shut of f the machine, remove the
key , and turn the battery-disconnect switch to
the O FF position.
2. Remove the ange-head bolts and nuts from the
skid.
3. Move the skid to the desired position and secure
it to the cutting unit with the ange-head bolts
and nuts ( Figure 14 ).
g464413
Figure 14
Adjusting the Flow Bafe
Model 31890 Only
Y ou can adjust the mower-discharge ow for dif ferent
types of mowing conditions. Position the baf e to give
the best quality of cut.
1. Park the machine on a level surface, lower the
cutting unit, shut of f the machine, remove the
key , and turn the battery-disconnect switch to
the O FF position.
2. Loosen the nut ( Figure 15 ).
g295677
Figure 15
1. Nut
2. Baf e-adjustment decal
3. Adjust the baf e and nut in the slot to the desired
discharge ow; refer to Positioning the Flow
Baf e ( page 14 ) .
4. T ighten the nut.
Positioning the Flow Bafe
Model 31890 Only
Refer to the following sections for a description of
each ow-baf e position. Figure 15 illustrates each
position (i.e., A , B , and C ) as seen on the decal.
The following positions are only recommendations for
use. Adjustments will vary by grass type, moisture
content, and height of grass.
Position A
This is the full rear position. The suggested use for
this position is a follows.
•Use for short, light grass mowing conditions.
•Use in dry conditions.
•For smaller grass clippings.
•Propels grass clippings farther away from the
mower .
Position B
Use this position when bagging. Always align it with
the blower opening.
Position C
This is the full open position. The suggested use for
this position is as follows.
•Use in tall, dense grass mowing conditions.
•Use in wet conditions.
14

•Lowers the machine power consumption.
•Allows increased ground speed in heavy
conditions.
Using the Side Discharge
Model 31890 Only
The Model 31890 cutting unit has a hinged grass
deector that disperses clippings to the side and down
toward the turf.
DANGER
W ithout a grass deector , discharge cover , or
complete grass catcher assembly mounted in
place, you and others are exposed to blade
contact and thrown debris. Contact with
rotating mower blade(s) and thrown debris
will cause injury or death.
• Never remove the grass deector from
the mower because the grass deector
routes material down toward the turf. If the
grass deector is ever damaged, replace it
immediately .
• Never put your hands or feet under the
mower .
• Never try to clear the discharge area
or mower blades unless you move the
power take off (blade control switch (PT O)
to the OFF position, rotate the ignition
key to off, remove the key , and turn the
battery-disconnect switch to the O FF
position.
• Make sure that the grass deector is in the
down position.
Operating T ips
Quality of Cut
Mowing Direction
Alternate mowing direction to avoid making ruts in
the turf over time. This also helps disperse clippings
which enhances decomposition and fertilization.
Cutting Speed
T o improve cut quality , use a slower ground speed.
A void Cutting T oo Low
If the cutting width of the cutting unit is wider than the
mower you previously used, raise the cutting height to
ensure that uneven turf is not cut too short.
Select the Proper Height-of-Cut
Setting to Suit Conditions
Remove approximately 1 inch (25 mm) or no
more than 1/3 of the grass blade when cutting. In
exceptionally lush and dense grass, you may have
to slow down the forward speed and/or raise the
height-of-cut to the next higher setting.
Long Grass
If the grass is ever allowed to grow slightly longer than
normal, or if it contains a high degree of moisture,
raise the cutting height higher than the usual setting
and cut the grass. Then, cut the grass again using
the lower , normal setting.
Keep the Cutting Unit Clean
Clean clippings and dirt from the underside of the
cutting unit after each use. If grass and dirt build up
inside the cutting unit, cutting quality will eventually
become unsatisfactory .
T o reduce the risk of re hazard, keep the battery
compartment and cutting units free of grass, leaves,
or excessive grease. Clean up any spilled oil.
Blade Maintenance
•Maintain a sharp blade throughout the cutting
season; a sharp blade cuts cleanly without tearing
or shredding the grass blades. T earing and
shredding turns grass brown at the edges, which
slows growth and increases the chance of disease.
•Check the blades daily for sharpness and for
any wear or damage. Sharpen the blades as
necessary .
•If a blade is damaged or worn, replace it
immediately with a genuine T oro replacement
blade. Refer to Removing and Installing the
Cutting-Unit Blade(s) ( page 19 ) .
15

Maintenance
Note: Determine the left and right sides of the machine from the normal operating position.
Recommended Maintenance Schedule(s)
Maintenance Service
Interval
Maintenance Procedure
Before each use or daily
• Lubricate the castor-arm bushings.
• Inspect the blades.
• Check the condition of the electrical cables.
• Clean under the cutting unit.
Every 50 hours
• Lubricate the grease ttings. Lubricate the grease ttings immediately after every
washing.
Daily Maintenance Checklist
Duplicate this page for routine use.
For the week of:Maintenance Check Item
Mon. T ues. W ed. Thurs. Fri.
Sat. Sun.
Check the condition of the
blades
Check the condition of the
electrical cables
Lubricate all grease ttings
1
T ouch-up damaged paint
Clean the cutting unit
1. Immediately after every washing, regardless of the interval listed.
Notation for Areas of Concern
Inspection performed by:
Item Date
Information
CAUTION
If you leave the key in the switch, someone could accidently start the machine and seriously
injure you or other bystanders.
Remove the key from the switch and turn the battery-disconnect switch to the O FF position
before you do any maintenance.
16

Greasing the Castor-Arm
Bushings
The machine has grease ttings that you must
lubricate regularly with No. 2 lithium grease.
1. Park the machine on a level surface, lower the
cutting unit, shut of f the machine, remove the
key , and turn the battery-disconnect switch to
the O FF position.
2. Lubricate the castor-arm bushings ( Figure 16 ).
g01 1557
Figure 16
Removing the Cutting Unit
from the T raction Unit
1. Park the machine on a level surface with the
cutting unit raised.
2. Remove the height-of-cut pins ( Figure 17 ) from
the cutting-unit side plates.
g296784
Figure 17
1. Height-of-cut chain
2. Pin
3. Lower the cutting unit, shut of f the machine, and
remove the key .
4. Remove the bolts and washers that secure the
lift arms to the castor arms ( Figure 18 ).
17

g433394
Figure 18
1. Lift arm
3. W asher
2. Castor arm
4. Bolt
5. Disconnect the cutting-unit connector from the
machine connector ( Figure 19 ).
g433400
Figure 19
1. Machine connector
2. Cutting-unit connector
Servicing the Bushings in
the Castor Arms
The castor arms have bushings pressed into the top
and bottom of the tube, and after many hours of
operation, the bushings wear .
T o check the bushings, move the castor fork back
and forth and from side to side. If the castor spindle
is loose inside the bushings, the bushings are worn;
replace them.
1. Park the machine on a level surface, lower the
cutting unit, shut of f the machine, remove the
key , and turn the battery-disconnect switch to
the O FF position.
2. Remove the tensioning cap, spacer(s), and
thrust washer from the top of the castor spindle.
3. Pull the castor spindle out of the mounting tube.
Allow the thrust washer and spacer(s) to remain
on the bottom of the spindle.
4. Insert a pin punch into the top or bottom of the
mounting tube and drive the bushing out of the
tube ( Figure 20 ). Also, drive the other bushing
out of the tube. Clean the inside of the tubes
to remove dirt.
g004737
Figure 20
1. Castor arm tube
2. Bushings
5. Apply grease to the inside and outside of the
new bushings. Use a hammer and at plate to
drive the bushings into the mounting tube.
6. Inspect the castor spindle for wear and replace
it if damaged.
7. Push the castor spindle through the bushings
and mounting tube, slide the thrust washer
and spacer(s) onto the spindle, and install the
tensioning cap on the castor spindle.
18

Servicing the Cutting
Blades
Blade Safety
A worn or damaged blade can break, and a piece of
the blade could be thrown toward you or bystanders,
resulting in serious personal injury or death.
•Inspect the blade periodically for wear or damage.
•Use care when checking the blades. W rap the
blades or wear gloves, and use caution when
servicing the blades. Only replace or sharpen the
blades; never straighten or weld them.
Checking for a Bent Blade
After striking a foreign object, inspect the machine
for damage and make repairs before starting and
operating the equipment.
1. Park the machine on a level surface, raise the
cutting unit to the T RANSPORT position, shut
of f the machine, remove the key , and turn the
battery-disconnect switch to the O FF position.
2. Raise the cutting unit to the S ERVICE position;
refer to your traction unit Operator ’ s Manual .
3. Rotate the blade until the ends face forward and
backward and measure from the inside of the
cutting unit to the cutting edge at the front of the
blade ( Figure 21 ).
Note: Remember this dimension.
g010549
Figure 21
4. Rotate the opposite end of the blade forward
and measure between the cutting unit and
cutting edge of the blade at the same position
as in step 3.
Note: The dif ference between the dimensions
obtained in steps 3and 4must not exceed 3 mm
(1/8 inch). If the dimension exceeds 3 mm (1/8
inch), the blade is bent and must be replaced;
refer to Removing and Installing the Cutting-Unit
Blade(s) ( page 19 ) .
Removing and Installing the
Cutting-Unit Blade(s)
Replace the blade if it hits a solid object, is out
of balance, or is bent. Always use genuine T oro
replacement blades to ensure safety and optimum
performance.
1. Park the machine on a level surface, raise the
cutting unit to the T RANSPORT position, shut
of f the machine, remove the key , and turn the
battery-disconnect switch to the O FF position.
2. Raise the cutting unit to the S ERVICE position;
refer to your traction unit Operator ’ s Manual .
3. Place a wrench on the at of the blade retainer
or hold the blade end using a rag or thickly
padded glove.
4. Remove the blade bolt, washer , and blade from
the spindle shaft.
g464417
Figure 22
1. Blade retainer 3. W asher
2. Blade 4. Blade bolt
5. Install the blade to the shaft.
Ensure that the washer is oriented as shown in
Figure 23 to ensure proper cutting.
W ARNING
Operating a machine after incorrectly
installing the blade assembly and/or
not using genuine T oro blade and blade
hardware could allow a blade or blade
component to be thrown out from under
the deck, resulting in serious injury or
death.
Always install genuine T oro blades
and blade hardware according to the
instructions.
19

g464416
Figure 23
1. Blade retainer 3. W asher
2. Blade 4. Blade bolt
6. Place a wrench on the at of the spindle shaft
and torque the blade bolt to 75 to 81 N∙m (55
to 60 ft-lb).
Inspecting and Sharpening the
Cutting Unit Blade(s)
Service Interval : Before each use or daily
Both cutting edges and the sail, which is the turned-up
portion opposite of the cutting edge, contribute to a
good quality of cut.
Maintain sharp blades throughout the cutting season.
Sharp blades create a clean cut without tearing or
shredding the grass blades.
Check the blades for any wear or damage. The sail
lifts the grass up straight, thereby producing an even
cut and gradually wears down during operation.
1. Park the machine on a level surface, raise the
cutting unit to the T RANSPORT position, shut
of f the machine, remove the key , and turn the
battery-disconnect switch to the O FF position.
2. Raise the cutting unit to the S ERVICE position;
refer to your traction unit Operator ’ s Manual .
3. Examine the cutting ends of the blade carefully ,
especially where the at and curved parts of the
blade meet ( Figure 24 ).
Note: Because sand and abrasive material
can wear away the metal that connects the at
and curved parts of the blade, check the blade
before using the mower . If you notice wear
(Figure 24 ), replace the blade.
g004653
Figure 24
1. Cutting edge 3. W ear/slot forming
2. Curved area 4. Crack
4. Examine the cutting edges of all of the blades
and sharpen the cutting edges if they are dull
or nicked ( Figure 25 ).
Note: Sharpen only the top of the cutting
edge and maintain the original cutting angle
to ensure sharpness ( Figure 25 ). The blade
remains balanced if the same amount of metal
is removed from both cutting edges.
g000276
Figure 25
1. Sharpen at the original angle.
20