Toro Wheel Horse 79375 User manual

Operator’s Manual
IMPORTANT: Read this manual, and your tractor manual, carefully. They
contain information about your safety and the safety of others. Also
become familiar with the controls and their proper use before you operate
the product.
FORM NO. 3322–850
Wheel Horse

36” Tiller
for
5xi
Lawn and Garden T ractors
Model No. 79375 – 8900001 & Up

Printed in USA
Introduction
We want you to be completely satisfied with your
new product, so feel free to contact your local
Authorized Service Dealer for help with service,
genuine replacement parts, or other information you
may require.
Whenever you contact your Authorized Service
Dealer or the factory, always know the model and
serial numbers of your product. These numbers will
help the Service Dealer or Service Representative
provide exact information about your specific
product. You will find the model and serial number
plate located in a unique place on the product as
shown below .
1m–3497
1. Model and Serial Number Plate
For your convenience, write the product model and
serial numbers in the space below.
Model No:
Serial No.
The warning system in this manual identifies
potential hazards and has special safety messages that
help you and others avoid personal injury, even death.
DANGER, WARNING and CAUTION are signal
words used to identify the level of hazard. However,
regardless of the hazard, be extremely careful.
DANGER signals an extreme hazard that will cause
serious injury or death if the recommended
precautions are not followed.
WARNING signals a hazard that may cause serious
injury or death if the recommended precautions are
not followed.
CAUTION signals a hazard that may cause minor or
moderate injury if the recommended precautions are
not followed.
Two other words are also used to highlight
information. “Important” calls attention to special
mechanical information and “Note” emphasizes
general information worthy of special attention.
The left and right side of the machine is determined
by sitting on the seat in the normal operator’s
position.

1
Contents
Page
Safety and Instruction Decals 2.
. . . . . . . . . . . . .
Installation 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loose Parts 3 . . . . . . . . . . . . . . . . . . . . . . . . .
Assembling the Tiller 4 . . . . . . . . . . . . . . . . .
Tractor Set-Up 5 . . . . . . . . . . . . . . . . . . . . . .
Installing the Tiller to the Tractor 8 . . . . . . .
Removing the Tiller 12 . . . . . . . . . . . . . . . . . .
Operation 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Attachment Power Lift 14 . . . . . . . . . . . . . . . .
Lowering Attachments 15 . . . . . . . . . . . . . . . .
Tips for Tilling 15 . . . . . . . . . . . . . . . . . . . . . .
Page
Maintenance 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Interval Chart 16 . . . . . . . . . . . . . . . .
Greasing and Lubrication 17 . . . . . . . . . . . . . .
Checking Tiller Drive Belt Tension 17 . . . . . .
Replacing the Tiller Drive Belt 17 . . . . . . . . .
Checking PTO Drive Belt Tension 18 . . . . . .
Storage 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety
2
Safety and Instruction 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 lost.
ON TINE SHIELD
LEFT and RIGHT SIDE
(Part No. 92–71 12)
ON PULLEY BOX
(Part No. 98–8082)

3
Installation
Loose Parts
Note: A rear–mount Attach–A–Matic, which must be purchased separately, is required for this tiller. Use
the chart below to identify other parts used for assembly.
DESCRIPTION QTY. USE
T iller housing
T iller lift frame
Panel guard
Cotter pin 1/8” x 1” (25 mm)
1
1
1
3
Assemble the tiller
Pulley
Square key
Set screw
1
1
2
Assemble tiller pulley
Belt guard
T iller belt (short belt)
Idler pulley
Bolt, 3/8–16 x 2” (51 mm)
Nut, 3/8”
1
1
1
1
1
Installing the belt guard
T iller pulley box
PT O drive belt (long belt)
1
1
Install pulley box
Clevis pin 3/8” x 1” (25 mm)
Hairpin cotter
2
2
Prepare tractor attachment lift
Cable guide 1 Install the cable guide
Jack shaft assembly 1 Connect drive belts
Lift cable
Trunnion
Clevis pin 5/16” x 1” (25 mm)
Locknut
Hairpin cotter
Washer
1
1
1
1
2
1
Install tiller to tractor
Operator manual 1 Read before operating

Installation
4
Assembling the T iller
1. Support the tiller housing so it sets in an upright
position. Remove the 3/8 x 5–1/2” (140 mm)
bolt, 3/8 x 4–1/2” (114 mm) bolt, and (2) 3/8”
locknuts; discard the 1/2” nuts (used as spacers
for shipping).
2. Attach the tiller lift frame to the tiller housing
with the previously removed 3/8 x 4–1/2” (114
mm) bolt, 3/8–16 x 5–1/2” bolt (140 mm), and
(2) 3/8” locknuts (Fig. 1). Torque the nuts to
30–32 ft–lbs.
m–3506
1
2
3
4
5
Figure 1
1. Tiller housing
2. T iller lift frame
3. Bolt 3/8–16 x 5–1/2” (140
mm)
4.
Locknut 3/8”
5. Bolt 3/8–16 x 4–1/2” (1 14
mm)
3. Hook the panel guard into the slots on the end of
the tiller housing (Fig. 2). Insert (3) cotter pins
and bend the ends of the pins to secure the panel
guard.
1
3
m–1282
2
Figure 2
1. Panel guard
2. Cotter pin (3)
3. Slot
4. Install the pulley by inserting the square key into
the input shaft groove. Slip the pulley onto the
shaft (hub toward the gear case) and align it with
the flat idler pulley. Secure it with two
square–head set screws (Fig. 3).
m–4423
2
1
3
4
Figure 3
1. Pulley
2. Key 3. Set screw 4.
Input shaft
5. Remove the nut from the gearcase bolt located
just above the input shaft (Fig. 4). The belt
guard mounts to this bolt.
6. Install the tiller belt (short belt) over the input
pulley.
7. Assemble the belt guard to the gearcase bolt
(step 5) and replace the nut loosely.

Installation
5
8. Install the ilder pulley on the 3/8–16 x 2” (51
mm) bolt so that the extended hub of the pulley
is toward the tiller lift frame. Route the belt
under the idler pulley, and insert the bolt through
the upper belt guard hole and upper hole in the
tiller lift frame
(Fig. 4). Tighten the nut securely.
m–4422
1
4
5
4
6
2
7
8
3
Figure 4
1. Belt cover
2. Gearcase bolt
3. Input pulley
4. Locknut, 3/8”
5. Bolt, 3/8–16 x 2” (51 mm)
6. Upper hole
7. T iller Belt (short belt)
8. Idler pulley
9. Torque the nut on the gearcase (upper end of belt
guard) to 30–32 ft–lbs.
Tractor Set-Up
Installing the Rear Attach–A–Maticto
the Tractor
Follow the installation instructions that come with the
rear Attach–A–Matic mount.
Installing the Front Pulley Box to the
Tractor
1. Attach the pulley box that came with the tiller to
the front Attach–A–Matic.
IMPORTANT: The pulley box for the tiller
and cutter deck are different. Make certain
to always use the tiller pulley box with the
tiller.
2. Make sure the latches on the tractor’s front
Attach–A–Maticare open (Fig. 5). Then slide
the pulley box into the Attach–A–Matic
latches and seat it. Close the latches.
m–3642
1
22
3
45
6
7
Figure 5
1. Attach–A–Matic latches
2. Pulley box
3. Idler pulley
4. Belt tension release arm
5. Belt tension adjustment
knob
6. Belt tension indicators
(one on each side)
7. Attach–A–Matic release
button (one on each side)
Remove the drawbar hitch
1. Remove the snap ring from the pin and slide
from the drawbar and spacers. Remove the hitch
from the tractor (Fig. 6).
Note: Save all hardware for use when
re-installing the hitch.

Installation
6
2314
2
3
1
4
Figure 6
1. Snap ring
2. Pin 3. Drawbar 4. Spacer (2)
Preparing the Tractor’s Attachment Lift
If you have been using a mower, secure the tractor’s
attachment lift arms in the raised position.
1. Start the tractor.
2. Raise the attachment lift.
3. Set the parking brake and turn the ignition key to
“STOP” to stop the engine. Remove the ignition
key.
4. Install a 3/8” x 1” (25 mm) clevis pin into each
side of the lift assembly in the positions shown
in Figure 7. Secure them with (2) hairpin
cotters.
2
1
m–3433
Figure 7
1. Clevis pin 3/8” x 1” (25
mm) 2.
Hairpin cotter
These pins must be installed when operating with a
blade, snowthrower, or tiller attachment.
Note: The pins are removed to attach a
mower.

Installation
7
Remove the Rear Transaxle Cover
Remove the transaxle cover from the back of the
tractor (Fig. 8).
1. Remove the two bolts and locknuts securing the
transaxle cover to the tractor frame.
Note: Save all parts and hardware for use
when reinstalling the transaxle cover.
1
m–3436
Figure 8
1. Rear transaxle cover
Installing the Cable Guide
The cable guide can be installed from the underside
of the tractor. For more visibilty, the drive shaft
maintenance cover can be removed to aid in
installation.
1. Disengage the power take off (PTO), set the
parking brake and turn the ignition key to
“STOP” to stop the engine. Remove the ignition
key.
POTENTIAL HAZARD
•Rotating shaft or cooling fan can cause
injury.
WHAT CAN HAPPEN
•Fingers, hands, feet, hair, etc. can get
caught by shaft or fan.
•Loose clothing can get caught by shaft.
HOW TO AV
OID THE HAZARD
•Do not operate the tractor without the drive
shaft cover in place.
•Keep hands and arms clear of rotating
shaft or fan.
2. Remove the two bolts in the plastic fan baffle
(Fig. 9) and remove the baffle.
3. Remove the clip nut from the left side of the
plastic fan baffle and install over the hole in the
bent tab of the cable guide (Fig. 9).
4. Remove the nut from the pivot bolt on the left
hand attachment lift arm (Fig. 9). Leave the bolt
in place.
5. Install the rear hole of the cable guide to the left
hand lift arm pivot bolt and replace the nut
loosely (Fig. 9).
6. Reinstall the plastic fan baffle with one of the
previously removed bolts in the right hand side
only (Fig. 9). Leave the bolt loose.
7. Align the front of the cable guide with the hole
in the left hand side of the plastic fan baffle and
reinstall the other bolt previously removed.
Tighten all bolts and nuts securely.

Installation
8
8. Replace the drive shaft maintenance cover (if
removed).
1
2
3
4
5
6
7

8
9
Figure 9
1. Cable guide
2. Clip nut
3. Fan baf fle bolt
4. Left hand lift arm pivot bolt
nut
5. Plastic
fan baf fle
6.
Right hand attachment lift
arm
7.
Rear of tractor
8. Pivot bolt
9. Lift cable
Installing the T iller to the
Tractor
1. Position the tiller on a level surface with enough
space behind it to accommodate the tractor.
2. Start the tractor and back it into position. Lower
the attachment lift and turn the ignition key to
“STOP” to stop the engine. Remove the ignition
key.
3. Place the jack shaft assembly between the tractor
wheels and oriented with the tiller as shown
(Fig. 10).
m–3491
1
2
3
4
5
6
7
8
9
Figure 10
1. Tiller
2. Jack
shaft assembly
3. Lift cable
4. T iller belt (short belt)
5. Idler pulley
6. T iller hitch bar
7. Smaller jack shaft bar
8. Jack shaft/PT O drive belt
pulley
9.
Larger jack shaft bar
4. Open the latches on the rear Attach–A–Matic.
Place the smaller bar of the jack shaft assembly
into the slots on the front of the rear
Attach–A–Matic(Fig. 11).
m–3505
1
2
3
Figure 1 1
1. Smaller jack shaft bar
2. Rear Attach–A–Matic 
3. Rear