Toro 30450 User manual

Operator’s Manual
English (EN)
Form No. 3328-186
Groundsmaster455-D
Traction Unit and Cutting Unit
Model No. 30450—Serial No. 220000201 and Up
Model No. 30455—Serial No. 220000201 and Up

2
All Rights Reserved
Printed in the USA
2002 by The Toro Company
8111 Lyndale Avenue South
Bloomington, MN 55420-1196
The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.
Warning
Important The engine in this product is not equipped
with a spark arrester muffler. It is a violation of California
Public Resource Code Section 4442 to use or operate this
engine on any forest-covered, brush-covered, or
grass-covered land as defined in CPRC 4126. Other states
or federal areas may have similar laws.
This spark ignition system complies with Canadian
ICES-002.
Ce système d’allumage par étincelle de véhicule est
conforme à la norme NMB-002 du Canada.
Contents
Page
Page
Introduction
Read this manual carefully to learn how to operate and
maintain your product properly. The information in this
manual can help you and others avoid injury and product
damage. Although Toro designs and produces safe
products, you are responsible for operating the product
properly and safely.
Whenever you need service, genuine Toro parts, or
additional information, contact an Authorized Service
Dealer or Toro Customer Service and have the model and
serial numbers of your product ready. The model and serial
number for the traction unit is on a plate that is mounted on
the left front frame member. The model and serial number
for the cutting unit is mounted on the top front of the center
cutting unit.
Write the product model and serial numbers in the space
below:
Model No.
Serial No.
This manual identifies potential hazards and has special
safety messages that help you and others avoid personal
injury and 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 you do not follow the recommended
precautions.
Warning signals a hazard that may cause serious injury or
death if you do not follow the recommended precautions.
Caution signals a hazard that may cause minor or moderate
injury if you do not follow the recommended precautions.
This manual uses two other words to highlight information.
Important calls attention to special mechanical
information and Note: emphasizes general information
worthy of special attention.

3
Safety
The GROUNDSMASTER 455-D was tested and
certified by TORO for compliance with the B71.4-1990
specifications of the American National Standards
Institute. Although hazard control and accident
prevention partially are dependent upon the design and
configuration of the machine, these factors are also
dependent upon the awareness, concern, and proper
training of the personnel involved in the operation,
transport, maintenance, and storage of the machine.
Improper use or maintenance of the machine can result
in injury or death. To reduce the potential for injury or
death, comply with the following safety instructions.
Before Operating
•Read and understand the contents of this manual before
starting and operating the machine. Become familiar
with the controls and know how to stop the machine
and engine quickly.
•Never allow children to operate the machine. Do not
allow adults to operate machine without proper
instruction. Only trained operators who have read this
manual should operate this machine.
•Never operate the machine when under the influence of
drugs or alcohol.
•Keep all shields, safety devices and decals in place. If a
shield, safety device or decal is defective, illegible or
damaged, repair or replace it before operating the
machine. Also tighten any loose nuts, bolts or screws to
ensure machine is in safe operating condition.
•Always wear substantial shoes. Do not operate machine
while wearing sandals, tennis shoes, sneakers or when
barefoot. Do not wear loose fitting clothing that could
get caught in moving parts and possibly cause personal
injury. Wearing safety glasses, safety shoes, long pants
and a helmet is advisable and required by some local
ordinances and insurance regulations.
•Assure interlock switches are adjusted correctly so
engine cannot be started unless traction pedal is in
Neutral and cutting unit is Disengaged.
•Remove all debris or other objects that might be picked
up and thrown by the blades or fast moving components
from other attached implements. Keep all bystanders
away from operating area.
•Since diesel fuel is highly flammable, handle it
carefully:
– Use an approved fuel container.
– Do not remove fuel tank cap while engine is hot or
running.
– Do not smoke while handling fuel.
– Fill fuel tank outdoors and only to within an inch
from the top of the tank, not the filler neck. Do not
overfill.
– Wipe up any spilled fuel.
While Operating
•Sit on the seat when starting and operating the machine.
•Before starting the engine:
A. Engage the parking brake.
B. Make sure traction pedal is in NEUTRAL and
cutting decks are DISENGAGED. Move axle shift
to HI or LO position.
C. After engine is started, release parking brake and
keep foot off traction pedal. Machine must not
move. If movement is evident, the neutral return
mechanism is adjusted incorrectly; therefore, shut
engine off and adjust until machine does not move
when traction pedal is released. Refer to Adjusting
Traction Drive for Neutral.
•Seating capacity is one person. Therefore, never carry
passengers.
•Do not run engine in a confined area without adequate
ventilation. Exhaust fumes are hazardous and could
possibly be deadly.
•Check interlock switches daily for proper operation. Do
not rely entirely on safety switches - use common sense.
If a switch fails, replace it before operating the
machine. The interlock system is for your protection, so
do not bypass it. Replace all interlock switches every
two years.
•Using the machine demands attention and to prevent
loss of control:
– Operate only in daylight or when there is good
artificial light.
– Drive slowly. Avoid sudden stops and starts.
– Watch for holes or other hidden hazards.
– Look behind machine before backing up.
– Do not drive close to a sand trap, ditch, creek or
other hazard.
– Reduce speed when making sharp turns and turning
on a hillside.
•Traverse slopes carefully. Do not start or stop suddenly
when traveling uphill or downhill. Never shift axle
when moving. Machine must be on a flat surface and/or
brakes must be engaged to prevent freewheeling.

4
•Operator must be skilled and trained in how to drive on
hillsides. Failure to use caution on slopes or hills may
cause loss of control and vehicle to tip or roll possibly
resulting in personal injury or death.
•This product may exceed noise levels of 85 dB(A) at
the operator position. Ear protectors are recommended,
for prolonged exposure, to reduce the potential of
permanent hearing damage.
•When operating 4 wheel drive machine, always use the
seat belt and ROPS together and have seat pivot
retaining pin installed.
•If engine stalls or loses headway and cannot make it to
the top of a slope, do not turn machine around. Always
back slowly straight down the slope.
•Raise cutting decks and latch securely in transport
position before driving from one work area to another.
•Don’t take an injury risk! When a person or pet
appears unexpectedly in or near the mowing area, stop
mowing. Careless operation, combined with terrain
angles, ricochets, or improperly positioned guards can
lead to thrown object injuries. Do not resume mowing
until area is cleared.
•Do not touch engine, muffler or exhaust pipe while
engine is running or soon after it is stopped. These areas
could be hot enough to cause burns.
•If cutting deck strikes a solid object or vibrates
abnormally, stop immediately, turn engine off, set
parking brake and wait for all motion to stop. Inspect
for damage. If damaged, repair or replace any
components before operating.
•Before getting off the seat:
D. Set parking brake.
E. Move traction pedal to neutral and axle shift to HI
or LO position.
F. Disengage cutting decks and wait for blades to stop.
G. Stop engine and remove key from switch.
H. Do not park on slopes unless wheels are chocked or
blocked.
•Use only a rigid tow bar if it becomes necessary to tow
machine. Use trailer for normal transport.
Maintenance
•Before servicing or making adjustments, stop engine
and remove key from the switch.
•Make sure machine is in safe operating condition by
keeping all nuts, bolts and screws tight.
•Make sure all hydraulic line connectors are tight, and all
hydraulic hoses and lines are in good condition before
applying pressure to the system.
•Keep body and hands away from pin hole leaks or
nozzles that eject high pressure hydraulic fluid. Use
cardboard or paper to find hydraulic leaks. Hydraulic
fluid escaping under pressure can penetrate skin and
cause injury. Fluid accidentally injected into the skin
must be surgically removed within a few hours by a
doctor familiar with this form of injury or gangrene
may result.
•Before disconnecting or performing any work on the
hydraulic system, all pressure in system must be
relieved by lowering cutting units to the ground and
stopping engine.
•If major repairs are ever needed or assistance is desired,
contact an Authorized Toro Distributor.
•To reduce potential fire hazard, keep engine area free of
excessive grease, grass, leaves and dirt. Clean
protective screen on back of machine frequently. Never
wash a warm engine or electrical connections with
water.
•If engine must be running to perform maintenance or an
adjustment, keep hands, feet, clothing and other parts of
the body away from cutting units and other moving
parts. Keep all bystanders away.
•Do not overspeed the engine by changing governor
setting. To assure safety and accuracy, have an
Authorized Toro Distributor check maximum engine
speed.
•Shut engine off before checking or adding oil to the
crankcase.
•Disconnect battery before servicing the machine. If
battery voltage is required for troubleshooting or test
procedures, temporarily connect the battery.
•At the time of manufacture, the machine conformed to
the safety standards for riding mower. Ballast weight,
mounted to rear of traction unit, is required for machine
to conform to safety standard. Do not remove ballast
weight at any time. To ensure optimum performance
and continued safety certification of the machine, use
genuine Toro replacement parts and accessories.
Replacement parts and accessories made by other
manufacturers may result in non-conformance with the
safety standards, and the warranty may be voided.

5
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.
43-8480
55-4300
66-1340
68-8340
70-2560

6
76-8780
83-9150
84-1470
85-6410
86-0700
86-0710
86-0720
86-0730

7
86-0740
86-0750
86-0760
86-0780
88-8950
92-1370
93-6681
1. Cutting/dismemberment hazard, fan—stay away from moving
parts.
93-9426

8
106-1005
93-7243
93-7242

9
Specifications
Traction Unit
Engine Peugeot, four-cycle, four cylinder, 1.9 liter (1900 cc) displacement, liquid cooled
diesel engine; 23.5:1 compression ratio; Low idle—1600 RPM, high
idle—3000 RPM
Cooling System Capacity is 3.5 gallons (13.2 l) of 50/50 mixture of Peugeot recommended
anti-freeze (Part No. 93-7213)
Fuel System Capacity is 12 gallons (45.4 l) of #1 or #2 diesel fuel.
Hydraulic System Reservoir capacity is 6.5 gallons (24.6 l); replaceable spin-on filter element
Traction System Ground speed: Low Range; 0–6.5 MPH (0–10.5 km/h) forward and 0–3
(0–4.8 km/h) reverse; High Range: 0–13 MPH (0–20.9 km/h) forward and 0–5 MPH
(0–8 km/h) reverse
Front Axle Two speed axle is designed to withstand heavy duty slope operation and side
loading. Separate mowing and transport selections for faster and more efficient
machine operation. Neutral position allows easy towing.
Rear Axles
Two Wheel Drive: The large diameter wheel spindles are designed for durability
and long wear, yet provide superior stability and maneuverability.
Four Wheel Drive: Heavy duty, agricultural type. Hydraulic drive with “on demand”
bidirectional clutch and balanced weight distribution provides superior traction on
hillsides.
Tires/Wheels High floatation turf tread tires on de-mountable rims. Front tires: (2) 26 x 12.0–12,
8 ply. Rear tires: (2) 20 x 10.0–10, 6 ply. Tire pressure 20 psi (138 kPa).
Seat Adjustable fore and aft travel and weight
Diagnostic System Test ports for forward and reverse traction (2-wheel drive), front and rear axle
motors (4-wheel drive), lift and counterbalance circuit, steering circuit, and charge
circuit.
Steering System Automotive type, full power
Brakes Totally enclosed, non asbestos, dry multi-disc 5-5/8 in. individual wheel and parking
brakes on front traction wheels; brakes controlled by individual pedals operated by
the left foot; dynamic braking through closed-loop hydrostatic drive.
Electrical System 12 volt battery with 650 cold cranking Amps @ 0°F, 55 amp alternator, ammeter,
starter, key switch, and automatic temperature controlled glow plug controller;
separately fused, run, deck and instrument/accessory circuits
Interlock System
Designed to stop engine if operator gets off seat while cutting deck drive switch is
engaged or traction pedal is forward or reverse. Prevents engine from starting
unless traction pedal is in neutral and cutting deck is disengaged. Prevents cutting
deck from operating unless axle shift is in LO range. Prevents traction unit from
moving if parking brake is engaged.
Warning Lights Glow plug indicator, engine oil pressure warning, engine coolant temperature
warning, charge indicator, water in fuel, low water indicator
Indicators Engine coolant temperature gauge, fuel gauge, hour meter

10
Cutting Unit
Type 126 in. (320 cm) width of cut, seven blade, front mounted rotary; 54 in. (137 cm)
width of cut, three blade center section; two 36 in. (91 cm) width of cut wings, 90 in.
(229 cm) width of cut with one wing up; rear discharge with even dispersion over
the entire width of cut
Mowing Rate Mows up to 8 acres/hr (32,375 m2) at 6.5 MPH (10.5 km/h)
Trimability Trims on both sides
Height-of-Cut Adjustable from 1 to 5 in. (2.5 to 12.7 cm) in 1/2 in. (1.3 cm) increments
Construction Housings are 12 gauge high strength steel, 5.5 in. (14 cm) deep, welded
construction and reinforced with 10 gauge channel. Covers are impact resistant,
molded plastic.
Cutter Drive
PTO driven gear box with 1:1 spiral bevel gears. Triple 3V section belt to center
deck spindles, “B” section belt to each wing deck with patented belt routing.
1-1/4 inch diameter, spindle shafts mounted on two greaseable, tapered roller
bearings. A positive splined connection attaches pulleys to spindle shafts for high
torque capacity.
Blades Seven 19 in. (48 cm) long, 1/4 in. (0.6 cm) thick, and 2-1/2 (6.4 cm) wide, heat
treated steel blades
Belt Idlers Self-tensioning permanently lubricated idlers
Wing Decks Wings can be hydraulically raised from the operator’s seat for transport or cutting
with either wing and center deck or center deck only. Wings cut from level to 15°up
and down. Further lift disengages the blade and applies a blade brake.
Suspension/Castor
Wheels
Four front and two rear pneumatic castor tires with ball bearings. Center deck tires:
10.25 x 3.25 in. Wing deck tires: 8 x 3.25 in. Anti-scalp cup located on each blade.
Three anti-scalp rollers on center deck. Deck is hydraulically counterbalanced.
Measurements (approx.)
Overall length
(with deck installed) 134 in. (34 m)
Overall width
Transport
Mowing 75 in. (1.9 m) 127 in. (3.23 m)
Height
with ROPS installed 58 in. (1.5 m) 82 in. (2.1 m)
Wheel Tread
Front
Rear 51 in. (130 cm) 41 in. (104 cm)
Wheel base 52 in. (132 cm)
Dry weight
2-wheel drive
4-wheel drive 3800 lb. (1724 kg) 3900 lb. (1769 kg)
Optional Equipment
Broom Kit*
Snowthrower*
Roll Over Protection Kit*
(Standard on Model 30455)
Four Post Canopy Kit*
Spark Arrestor Muffler Part No. 94-5637
Segmented Wheel Kit Part No. 76-1880
Brake Light Kit Part No. 92-7763
Gear Box Pulley
(Tip Speed 14,500) Part No. 86-3100
Windshield Kit*
Cruise Control Kit Model No. 30485
Road Light Kit Model No. 30471
Mulcher Kit Model NO. 30475
Cab*
Additional Weights*
Low Seat Option*
* Contact your local Toro distributor
Specifications and design subject to change without notice.

11
Before Operating
Note: Determine the left and right sides of the machine from the normal operating position.
Description Qty. Use
Ignition key
Parts catalog
Commercial product setup card
1
1
1
Operator’s Manual 2Read before operating the machine.
Registration card 1Fill out and return to Toro.
Before servicing or making adjustments to the
machine, stop engine and remove key from the
switch.
Caution
Checking the Engine Oil
Crankcase capacity is 5.3 U.S. quarts (5.1 l) with filter.
1. Park machine on a level surface. Release hood latch and
open hood.
2. Remove dipstick from tube cap (Fig. 1), wipe clean and
reinstall dipstick into tube cap. Pull it out again and
check oil level on dipstick: Oil level must always be in
notch area on dipstick.
1
Figure 1
1. Dipstick/tube cap
3. If oil level is low, remove tube cap and add API
15W–40 CF, CF–4, or CG–4 oil until level reaches top
of notch on dipstick. DO NOT OVERFILL.
4. Install oil tube cap.
5. Close hood and secure latch.
Checking the Cooling System
Capacity of system is 3.5 gallons (13.3 l)
1. Park machine on a level surface. Release hood latch and
open hood.
2. Check coolant level. Coolant level should be up to or
above mounting tabs on degasser tank, when engine
is cold (Fig. 2).
12
Figure 2
1. Degasser tank 2. Degasser tank cap
3. If coolant is low, remove degasser tank cap (Fig. 2) and
add a 50/50 mixture of water and Peugeot
recommended anti-freeze (Toro Part No. 93-7213). Do
not use water only or alcohol/methanol base
coolants.
4. Install degasser tank cap.
5. Close hood and secure latch.
Filling the Fuel Tank
1. Park machine on a level surface. Release hood latch and
open hood.
2. Remove fuel tank cap (Fig. 3).

12
1
Figure 3
1. Fuel tank cap
3. Fill tank to no more than one inch (25 mm) below
bottom of filler neck with No. 2 diesel fuel. Do not
overfill. Then install cap.
Note: For temperatures below 32°F., No. 1 diesel fuel or a
blend should be used.
Danger
Because diesel fuel is highly flammable, use
caution when storing or handling it. Do not
smoke while filling the fuel tank. Do not fill
fuel tank while engine is running, hot, or
when machine is in an enclosed area. Always
fill fuel tank outside and wipe up any spilled
diesel fuel before starting the engine. Store
fuel in a clean, safety–approved container
and keep cap in place. Use diesel fuel for the
engine only; not for any other purpose.
4. Close hood and secure latch.
Checking the Hydraulic Circuit
Oil
The machine’s reservoir is filled at the factory with
approximately 6.5 gallons (24.6 l) of high quality hydraulic
fluid. Check the level of hydraulic fluid before the
engine is first started and daily thereafter. Appropriate
hydraulic oils are listed below.
The following list is not assumed to be all-inclusive.
Hydraulic fluids produced by other manufacturers may be
used if they can cross reference to find an equivalent to the
products listed. Toro will not assume responsibility for
damage caused by improper substitutions, so use only
products from reputable manufacturers who will stand
behind their recommendation.
Multi-grade Hydraulic Fluid – ISO VG 46
Normal Climate: 0 (–18C) to 110F (43C)
Mobil DTE 15M
Amoco Rykon Premium ISO 46
Chevron Rykon Premium Oil ISO 46
Conoco Hydroclear AW MV46
Exxon Univis N46
Pennzoil AWX MV46
Shell Tellus T 46
Texaco Rando HDZ 46
Important The ISO VG 46 Multi-grade fluid has been
found to offer optimal performance in a wide range of
temperature conditions. For operation in consistently high
ambient temperatures, 65F (18C) to 120F (49C), ISO
VG 68 hydraulic fluid may offer improved performance.
Note: Many hydraulic fluids are almost colorless, making it
difficult to spot leaks. A red dye additive for the hydraulic
system oil is available in 2/3 oz. (20 ml) bottles. One bottle
is sufficient for 4–6 gal (15–22 1) of hydraulic oil. Order
part no. 44–2500 from your authorized Toro distributor.
Not recommended for biodegradable fluid (use food
coloring).
1. Park machine on a level surface and stop engine. Make
sure machine has been operated so oil is warm. Release
hood latch and open hood. Check level of oil by
viewing sight gauge (Fig. 4). If oil is visible in gauge,
oil level is sufficient.
2. If oil level is not visible in gauge, remove cap from
hydraulic oil reservoir (Fig. 4) and slowly add high
quality hydraulic fluid until level reaches middle
(maximum) of sight gauge. Do not overfill.
1
2
Figure 4
1. Sight gauge 2. Hydraulic reservoir cap
Important To prevent system contamination, clean top
of hydraulic oil containers before puncturing. Assure pour
spout and funnel are clean.

13
3. Install reservoir cap, close hood, and secure latch.
Checking the Front Axle Oil
Level
The front axle is shipped from the factory filled with SAE
80–90 wt. gear lube. However, check level before engine is
first started and every 50 hours thereafter. Capacity is
128 oz. Check daily for signs of oil loss.
1. Park machine on a level surface.
2. Remove access panel (Fig. 5), in front of seat, to expose
front axle/dipstick.
1
Figure 5
1. Access panel
3. Unscrew dipstick cap (Fig. 6) from the filler neck and
wipe it with a clean rag. Screw dipstick cap finger tight
onto filler neck. Unscrew the dipstick and check level
of lubricant. If level is not within 1/2 inch (13 mm)
from the groove in the dipstick, add enough to raise
level to groove mark. Do not overfill by more than
1/2 inch (13 mm) above groove.
1
Figure 6
1. Dipstick cap
4. Screw dipstick filler cap finger–tight onto filler neck. It
is not necessary to tighten cap with a wrench.
Checking the Rear Axle
Lubricant (Model 30455 Only)
The rear axle is shipped from the factory filled with SAE
80–90 wt. gear lube. However, check level before engine is
first started and every 50 hours thereafter. Capacity is
80 oz. Check daily for signs of oil loss.
1. Position the machine on a level surface.
2. Clean area around the 3 check plugs, one on each end
and one in the center (Fig. 7 and 8).
3. Remove the check plugs and make sure lubricant is up
to bottom of hole. If level is low, add enough lubricant
to bring the level up to the bottom of the check plug
holes.
1
2
Figure 7
1. Vent/fill plug 2. Check plug (3)

14
1
Figure 8
1. Check/fill plug
Checking the Bidirectional
Clutch Lubricant (Model 30455
Only)
The Bidirectional Clutch is shipped from the factory filled
with Mobil DTE 15 M anti-wear hydraulic fluid. However,
check level before engine is first started and every 50 hours
thereafter. Capacity is 8 oz. Check daily for signs of oil
loss.
1. Position the machine on a level surface.
2. Remove check/fill plug from clutch housing (Fig. 9)
and make sure lubricant is up to bottom of hole. If level
is low, add enough lubricant to bring the level up to the
bottom of the check/fill plug hole.
Note: Do not use gear lube in clutch housing.
2
3
1
Figure 9
1. Clutch housing
2. Check/fill plug 3. Drain plug
Checking the Tire Pressure
The tires are over-inflated for shipping. Therefore, release
some of the air to reduce the pressure. Correct air pressure
in the front and rear tires is 20 psi (138 kPa).
Important Maintain even pressure in all tires to assure
a good quality-of-cut and proper machine performance. Do
not under-inflate.
Checking the Torque of the
Wheel Nuts or Bolts
Torque front wheel nuts to 4555 ft-lb and
rear wheel nuts or bolts to 85100 ft-lb after
14 hours of operation and again after 10
hours of operation and every 200 hours
thereafter. Failure to maintain proper torque
could result in failure or loss of wheel and
may result in personal injury.
Warning
Checking the Lubricant in the
Gear Box
The gear box is designed to operate on SAE 80–90 wt. gear
lube. Although the gear box is shipped with lubricant from
the factory, initially, check the level before operating the
cutting unit and every 50 hours thereafter. Check daily for
signs of oil loss.
1. Position the machine and cutting unit on a level surface.
2. Remove check plug from side of gear box (Fig. 10) and
make sure lubricant is up to bottom of hole. If level of
lubricant is low, remove fill plug on top of gear case
(Fig. 10) and add enough lubricant to bring it up to
bottom of hole in side.
1
2
Figure 10
1. Filler plug 2. Check plug

15
Adjusting the Height-of-Cut
The height-of-cut is adjustable from 1 to 5 inches (2.5 to
12.7 cm) in 1/2 inch (13 mm) increments. Positioning the
castor wheel axles in the top holes of the castor forks or
pivots (see chart below) allows low range height-of-cut
settings from 1 to 3-1/2 in. (2.5 to 8.9 cm); positioning the
castor wheel axles in the lower holes of the front castor
forks or rear castor pivots (See chart below) allows high
range height-of-cut settings from 2-1/2 to 5 in. (6.4 to
12.7 cm).
Height-of-Cut Chart
Front Castor Wheels
Rear Deck Straps
Rear Castor Wheels
1. Start the engine and raise the cutting unit so
height-of-cut can be changed. Stop engine after cutting
unit is raised.
2. Position all castor wheel axles in the same holes in the
castor forks or pivots.
Front Castor Wheels
1. Remove HOC cap from spindle shaft and slide spindle
out of front castor arm (Fig. 11). Slide spacers onto
spindle shaft to get desired height-of-cut.
2. Push castor spindle through front castor arm, install
remaining spacers onto spindle, and install HOC cap to
secure assembly (Fig. 11).
Note: On Center deck only, make sure washer remains on
bottom of spindle shaft.
1
2
3
4
Figure 11
1. Front castor wheel
2. HOC cap
3. Spacers
4. Washer (center deck
only)
Rear Castor Wheels
1. Remove hairpin cotter and H.O.C. pin securing rear
castor pivot arm to deck bracket (Fig. 12).
1
Figure 12
1. Rear castor pivot
2. Align the pivot arm holes with selected height-of-cut
bracket holes in the deck frame, install H.O.C. pin and
secure with hairpin cotter.
Rear Deck Straps
1. Lower center and wing cutting units to the ground; then
raise center cutting unit slightly, until rear deck straps
hang freely on wear block of lift arm brackets (Fig. 13).
Stop engine after cutting unit is raised.

16
1
2
Figure 13
1. Rear deck straps 2. Lift arm brackets
2. Remove hairpin cotter and H.O.C. pin securing rear
deck strap to H.O.C. bracket on deck.
3. Slide deck strap forward or backward until holes in
strap are aligned with selected height-of-cut bracket
holes in the deck frame, install H.O.C. pin and secure
with hairpin cotter.
Safety Doors
On each side of the center deck is a safety door that opens
and closes as the wing decks are lowered and raised
(Fig. 14). The doors open to provide overlap of the cutting
blades when the wing units are down. The doors close to
provide safety and protection when the wing units are
raised. Check to make sure the forward, lower edge of door
is even or 1/4 in. (6 mm) higher then lower edge of door
guide when wing decks are in the fully raised, transport
position. If an adjustment to the door is required, refer to
Adjusting the Safety Door, page 41.
Check the operation of the safety doors daily and
each time the deck is cleaned. Repair as needed.
Caution
1
2
3
4
Figure 14
1. Safety door
2. Door guide 3. Ball joint 4. Threaded rod
Operation
Note: Determine the left and right sides of the machine
from the normal operating position.
The use of protective equipment, such as but not limited to, for
eyes, ears, feet, and head is recommended.
This machine produces sound levels in excess of
85 dBA at the operator’s ear and can cause
hearing loss through extended periods of exposure.
Wear hearing protection when operating this
machine.
Caution
12
1. Caution 2. Wear hearing protection

17
Controls
Cutting Unit Engagement Switch
The cutting unit engagement switch (Fig. 15) is used to
start and stop cutting unit operation. Lift switch and move
forward to actuate cutting unit. Center deck will engage
first followed by wing decks engaging approximately one
second later.
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12
8
7
11
4
1
325
10
6
Figure 15
1. Cutting unit engagement
switch
2. Glow plug indicator
3. Charge indicator
4. Key switch
5. Throttle control
6. Cutting unit lift controls
7. Coolant temperature
gauge
8. Fuel gauge
9. Low water indicator
10. Engine oil pressure
warning light
11. Engine coolant
temperature warning light
12. Water in fuel warning light
Glow Plug Indicator
The glow plug indicator (Fig. 15) automatically actuates
proper glow period when ignition key is turned to ON
position. Illuminates when glow plugs are actuated. When
glow plugs are heated sufficiently, light goes off indicating
engine is ready to start.
Charge Indicator
The charge indicator (Fig. 15) illuminates when system
charging circuit malfunctions.
Key Switch
The key switch (Fig. 15) has three positions: OFF, ON and
START. Rotate key to START and release key when engine
begins running. To stop engine, rotate key to OFF.
Throttle Control
Move the throttle control (Fig. 15) forward to increase
engine speed, backward to decrease speed.
Cutting Unit Lift Controls
The two outside levers (Fig. 15) raise and lower the wing
cutting units. The center lever raises and lowers the whole
cutting unit. Engine must be running to lower cutting unit.
When wing cutting units are raised higher than15, blades
automatically disengage. To lower cutting unit just touch
levers momentarily.
Coolant Temperature Gauge
The coolant temperature gauge (Fig. 15) shows temperature
of engine coolant.
Fuel Gauge
The fuel gauge (Fig. 15) shows amount of fuel in tank.
Low Water Indicator
The low water indicator (Fig. 15) indicates low water level
in cooling system.
Engine Oil Pressure Warning Light
The engine oil pressure warning light (Fig. 15) indicates
dangerously low engine oil pressure.
Engine Coolant Temperature Warning
Light
The red light (Fig. 15) illuminates and the engine stops
when temperature of coolant exceeds 230°F.
Water in Fuel Indicator
The water in fuel indicator (Fig. 15) indicates when there is
water in fuel.

18
Seat
Seat adjusting lever on left side of seat (Fig. 16) allows
4 inch (10.2 cm) fore and aft adjustment. Seat adjusting
knob on front of seat, adjusts seat for operator’s weight.
1
2
Figure 16
1. Seat adjusting lever 2. Seat adjusting knob
Traction Pedal
The traction pedal (Fig. 17) controls forward and reverse
operation. Depress top of pedal to move forward and
bottom to move backward. Ground speed depends on how
far pedal is depressed. For no load, maximum ground
speed, fully depress pedal while throttle is in FAST. For
maximum power under load or when going uphill, keep
engine rpm high by having throttle in FAST and traction
pedal partially engaged. If engine rpm begins to decrease
due to load, gradually reduce traction pedal pressure until
engine speed is increased.
1
2
3
Figure 17
1. Traction pedal
2. Axle shift lever 3. Lockout knob
To stop, reduce foot pressure on traction pedal and allow it
to return to center position. On extreme downhill slopes,
apply pressure to REVERSE side of pedal, or operate with
heel on REVERSE and toe on FORWARD portion of pedal.
Axle Shift Lever
The axle shift lever ,located on right side of console
(Fig. 17), selects front drive mode. Pull out lockout knob,
move lever rearward for mowing operation and forward for
transport operation, then release knob to lock selection.
Lever must be in LO position to mow. Middle position (N)
is for towing.
Important On model 30455, lever must be in LO
position to operate in 4-wheel drive.
The machine must be on a flat surface with the
brakes engaged when shifting the axle from the HI
to LO position.
Caution
Brake Pedals
Two foot pedals at the lower left (Fig. 18) operate
individual wheel brakes for turning assistance, braking,
parking and to aid in obtaining better sidehill traction.
Locking pin is for parking.
1
2
3
Figure 18
1. Brake pedals
2. Parking brake latch 3. Steering wheel tilt lever

19
Parking Brake Latch
A knob on the left side of console (Fig. 18) actuates
parking brake lock. To engage parking brake, connect
pedals with locking pin, push down on both pedals and pull
parking brake latch out. To release parking brake, depress
both pedals until parking brake latch retracts.
Steering Wheel Tilt Lever
Lever on left side of console (Fig. 18) allows steering
wheel to be adjusted for operator comfort.
Transport Latches
Four latches (Fig. 19) secure cutting unit and wings in
upright position for transport operation.
1
Figure 19
1. Transport latch
Hour Meter
The hour meter (under the hood) shows total hours that
machine has been operated.
Horn
The horn is in center of steering wheel. Operates only when
key switch is in ON.
Starting and Stopping
1. Sit on the seat, keep foot off traction pedal. Ensure that
the parking brake is engaged, traction pedal is in
NEUTRAL, and cutting unit engagement switch is in
the DISENGAGED position.
2. Turn ignition switch to ON position. When glow plug
indicator light goes off, engine is ready to START.
3. Turn ignition key to START. Release key when engine
starts.
4. To stop, disengage and move all controls to NEUTRAL
and set parking brake. Turn key to OFF and remove it
from switch. Raise and latch all cutting units in
transport position.
Priming the Fuel System
Important The fuel system may need to be primed
when a new engine is started for the first time, if it runs out
of fuel or if maintenance is performed on the fuel system.
1. Unlatch and raise hood.
2. Insert a 3/16 in. hose over bleed screw and run other
end into a container to catch fuel.
3. Loosen fuel filter/water separator bleed screw (Fig. 20)
a few turns. Pump priming plunger until a steady stream
of fuel comes out of hole in bleed screw. When fuel
stops foaming, tighten the bleed screw during the
downstroke of the priming plunger. Wipe up any spilled
fuel.
Note: Priming fuel filter without opening bleed screw may
damage priming plunger.
4. Pump priming plunger until resistance is felt. Try to
start engine. If engine does not start repeat step 3.
1
2
Figure 20
1. Primer plunger 2. Bleed screw

20
Note: Note: It may be necessary to bleed the air out of the
fuel line between the fuel filter / water separator and the
injection pump. To do this, loosen the fitting on the
injection pump (Fig. 21) and repeat bleeding procedure.
1
Figure 21
1. Injection pump fitting
Checking the Interlock System
The purpose of the interlock system is to prevent the engine
from cranking or starting unless the traction pedal is in
NEUTRAL and the cutting unit engagement switch is
DISENGAGED. In addition, the engine will stop when the
cutting unit engagement switch is engaged or traction pedal
is depressed with operator off the seat, or if the parking
brake is engaged.
If safety interlock switches are disconnected or
damaged, the machine could operate unexpectedly
causing personal injury.
•Do not tamper with the interlock switches.
•Check the operation of the interlock switches
daily and replace any damaged switches before
operating the machine.
•Replace switches every two years regardless of
whether they are operating properly or not.
Caution
1. In a wide open area free of debris and bystanders, lower
cutting unit to the ground. Stop engine.
2. Move cutting unit engagement switch to
DISENGAGED position and remove foot from traction
pedal so it is fully released.
3. Rotate the ignition key to START. Engine should start.
If engine starts, proceed to step 4. If engine does not
start, there may be a malfunction in the interlock
system.
4. Rise from the seat and engage the cutting unit
engagement switch while the engine is running. The
engine should stop within 2 seconds. If engine stops, the
switch is operating correctly; thus, proceed to step 5. If
engine does not stop, there is a malfunction in the
interlock system.
5. Engage parking brake and depress the traction pedal
while engine is running and the cutting unit engagement
switch is DISENGAGED. The engine should stop
within 2 seconds. If engine stops, the switch is
operating correctly; thus, continue operation. If engine
does not stop, there is a malfunction in the interlock
system.
6. Rise from the seat and depress the traction pedal while
engine is running and the cutting unit engagement
switch is DISENGAGED. The engine should stop
within 2 seconds. If engine stops, the switch is
operating correctly; thus, continue operation. If engine
does not stop, there is a malfunction in the interlock
system.
Operating Characteristics
Familiarization
Before mowing grass, practice operating machine in an
open area. Start and stop the engine. Operate in forward
and reverse. When you feel familiar with the machine,
practice operating around trees and obstacles. Also drive up
and down slopes at different speeds.
When operating 4-wheel drive machine, always use
the seat belt and ROPS together and have seat
pivot retaining pin installed.
Warning
Another characteristic to consider is the operation of the
brake pedals. The brakes can be used to assist in turning the
machine. However, use them carefully, especially on soft or
wet grass because the turf may be torn accidentally.
Another benefit of the brakes is to maintain traction. For
example: When operating on a sidehill, the uphill wheel
slips and loses traction. If this situation occurs, depress
uphill brake pedal gradually and intermittently until the
uphill wheel stops slipping, thus, increasing traction on the
downhill wheel.
Warning System
If a warning light comes on during operation, stop the
machine immediately and correct the problem before
continuing operation. Serious damage could occur if the
machine is operated with a malfunction.
Mowing
When you are at the area to be mowed, release cutting unit
transport latches.