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Toro
Lawn Mower
74312
Toro 74312 User Manual
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decal126-4159
Molded
in
Left
Console
1.
PTO—disengage
3.
Park
brake—release
2.
PTO—engage
4.
Park
brake—engage
decal126-4207
126-4207
1.
Refer
to
the
Operator
’
s
Manual
for
adjustment
procedure.
When
PT
O
is
engaged,
the
idler
arm
position
must
be
in
hatched
area
or
an
adjustment
is
required.
decal130-2880
130-2880
1.
Engine
temperature
7.
Retract
the
piston
2.
Fast
8.
Extend
the
piston
3.
Slow
9.
Fast
4.
Neutral
10.
Slow
5.
Neutral
1
1.
Choke—closed/on
6.
Reverse
12.
Choke—open/off
9
8
10
Table of Contents
Table of Contents
3
Safety
4
General Safety
4
Slope Indicator
5
Safety and Instructional Decals
6
Product Overview
12
Controls
12
Specifications
13
Attachments/Accessories
13
Before Operation
14
Before Operation Safety
14
Adding Fuel
15
Performing Daily Maintenance
15
Breaking in a New Machine
15
Raising the Mower Deck into the Service Position
16
Lowering the Mower Deck to the Operating Position
16
Adjusting the Fill Reduction System (FRS) Baffles
17
Using the Safety-Interlock System
18
Unlatching the Seat
19
During Operation
19
During Operation Safety
19
Operating the Parking Brake
21
Operating the PTO-Engagement Lever
22
Operating the Throttle
22
Operating the Choke
22
Starting the Engine
22
Shutting off the Engine
23
Driving the Machine
24
Adjusting the Height of Cut
24
Emptying the Hopper
25
Operating Tips
25
After Operation
26
After Operation Safety
26
Clearing the Hopper Screen
26
Using the Drive-Wheel Release Valves
26
Transporting the Machine
27
Maintenance
29
Maintenance Safety
29
Recommended Maintenance Schedule(S)
29
Lubrication
31
Greasing the Machine
31
Greasing the Pump-Belt Idler Arm
31
Lubricating the Brake-Handle Pivot
32
Lubricating the Brake-Rod Bushings and Steering-Linkage Rod Ends
33
Changing the Gearbox Oil
33
Greasing the Caster Pivots
34
Greasing the Caster-Wheel Hubs
35
Engine Maintenance
36
Engine Safety
36
Servicing the Air Cleaner
36
Servicing the Engine Oil
37
Servicing the Spark Plug
39
Fuel System Maintenance
40
Replacing the Fuel Filter
40
Servicing the Fuel Tank
40
Electrical System Maintenance
41
Electrical System Safety
41
Servicing the Battery
41
Adjusting the Safety Switches
42
Servicing the Fuses
42
Jump-Starting the Machine
43
Drive System Maintenance
44
Adjusting the Tracking
44
Checking the Tire Pressure
45
Checking the Wheel Lug Nuts
45
Checking the Wheel-Hub Slotted Nuts
45
Adjusting the Caster-Pivot Bearings
45
Cooling System Maintenance
46
Cooling System Safety
46
Cleaning the Engine Screen and Engine-Oil Cooler
46
Servicing the Engine-Oil Cooler
47
Cleaning the Engine Cooling Fins and Shrouds
47
Brake Maintenance
47
Adjusting the Parking Brake
47
Belt Maintenance
49
Inspecting the Belts
49
Replacing the PTO Belts
49
Replacing the Pump-Drive Belt
50
Adjusting the Belt Guides
50
Controls System Maintenance
51
Adjusting the Reverse-Stop Rod
51
Adjusting the Speed-Control Lever Tension
51
Adjusting the Speed-Control Linkage
52
Aligning the PTO-Drive Pulley
52
Aligning the Pump-Drive Pulley
53
Adjusting the PTO Brake Spring
54
Adjusting the Hopper Door
54
Adjusting the Locking-Pin Stop on the Mower Deck
55
Hydraulic System Maintenance
55
Hydraulic System Safety
55
Hydraulic-Fluid Specifications
55
Checking the Hydraulic Fluid
55
Changing the Hydraulic Fluid and Filter
56
Checking and Cleaning the Hydraulic Pumps
56
Blade Maintenance
57
Blade Safety
57
Servicing the Cutting Blades
57
Leveling the Mower Deck
59
Removing the Mower Deck
59
Installing the Mower Deck
61
Adjusting the Locking-Pin Stop on the Mower Deck
61
Cleaning
62
Cleaning under the Mower Deck
62
Cleaning Debris from the Machine
62
Disposing of Waste
62
Storage
63
Storage Safety
63
Cleaning and Storage
63
Troubleshooting
64
Schematics
66
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Toro 74312 Specifications
General
Brand
Toro
Model
74312
Category
Lawn Mower
Language
English
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