Grasshopper 721D2 Installation and operation manual

OPERATOR’S
MANUAL & PARTS LIST
RIDING MOWER
MODEL 721D2
THE GRASSHOPPER COMPANY
Moundridge, Kansas 67107 U.S.A.
Phone [phone]
Fax [phone]
Price $7.00
Form 172215-070307
Printed in U.S.A.

2
INTRODUCTION
Congratulations on your selection of Grasshop-
per equipment. We believe you have exercised
excellent judgment in the purchase of Grasshop-
per equipment. We are most appreciative of
your patronage.
We recommend that you carefully read this en-
tire manual before operating the unit. Time
spent becoming fully acquainted with its perfor-
mance features, adjustments and maintenance
will add a longer and more satisfactory life to
your Grasshopper.
The Grasshopper equipment you have pur-
chased has been carefully engineered and
manufactured to provide dependable and satis-
factory use. Like all mechanical products it will
require cleaning and upkeep. Lubricate it as
specified in the manual. Observe all safety infor-
mation in this manual and all safety decals on
the tractor and attachments.
The illustrations and data used in this manual
were current at the time of printing, but due to
possible in-line production changes your ma-
chine may vary slightly in detail. The
manufacturer reserves the right to make changes
or add improvements to its products at any time
without incurring any obligation to make such
changes to products manufactured previously.
As with all lawn and grounds equipment, if
handled carelessly this machine is a dangerous
piece of equipment. If used incorrectly this
machine can cause severe injury. You, the op-
erator, are responsible when operating it.
Therefore, safety is of the utmost importance.
ATTENTION:
nn
nn
nRead the instructions and warnings care-
fully before using this machine.
nRead your Grasshopper warranty, en-
closed with the tractor manual. To validate
warranty, fill in the required information
and return the warranty form within 10
days of purchase to:
THE GRASSHOPPER CO.
P.O. Box 637
Moundridge, Kansas 67107
Use only genuine Grasshopper service parts.
Substitute parts will void the warranty and may
not meet standards required for safe and satis-
factory operation. Record the model and serial
number of your mower.
MODEL:
SERIAL NUMBER:
(Serial tag is located under seat on tractor
frame by throttle.)
Provide this information to your dealer to obtain
correct repair parts.
CALIFORNIA
Proposition 65 Warning
Diesel engine exhaust and some of its
constituents are known to the State of
California to cause cancer, birth defects
and other reproductive harm.
Copyright © 2007, 2006 & 2005 by The Grasshopper Company.
All rights reserved.

3
TABLE OF CONTENTS
PAGE
SPECIFICATIONS 5
SAFETY SYMBOLS 6
SAFETY & INSTRUCTIONAL DECALS 7-10
SAFETY INFORMATION
Training .................................................................................................................................... 11
Preparation ............................................................................................................................... 11
Fuel Handling Safety ............................................................................................................ 11-12
Operational Safety .................................................................................................................... 12
Maintenance Safety .................................................................................................................. 13
Storing Safely ........................................................................................................................... 13
GENERAL INFORMATION
General Information .................................................................................................................. 14
Measurement Conversion ......................................................................................................... 15
Bolt Size and Tightening Recommendations ............................................................................... 15
OPERATION
Controls and Switches .............................................................................................................. 16
Prestart Check List .............................................................................................................. 16-17
Starting the Engine ............................................................................................................... 17-18
Cold Weather Starting Tips ....................................................................................................... 18
Uneven Terrain .................................................................................................................... 18-19
Stopping Engine ........................................................................................................................ 19
Moving Unit Without Power ..................................................................................................... 19
Steering Lever Operation ..................................................................................................... 19-21
LUBRICATION AND MAINTENANCE
Lubrication ............................................................................................................................... 22
Capacities ................................................................................................................................ 22
Tire Air Pressure ...................................................................................................................... 22
Drive System ............................................................................................................................ 22
Crankcase Oil and Air Filter ..................................................................................................... 22
Cooling System ........................................................................................................................ 22
Battery Maintenance ................................................................................................................. 23
Checking Drive System Fluid Level ........................................................................................... 23
Changing Drive System Fluid and Filters .................................................................................... 23
ADJUSTMENTS AND TROUBLE SHOOTING
Loss of Power in the Drive System ............................................................................................ 24
No Positive Neutral Position ..................................................................................................... 24
Neutral Adjustment ................................................................................................................... 24
Belt Replacement ...................................................................................................................... 24
54
STANDARD UNIVERSAL HARNESS
(ALL HYDRAULIC LIFT MODELS)
01-05065
Rev 09-06
1
2
THIS CONNECTOR STAYS
WITH TRACTOR
BROWN
TO PTO CLUTCH SWITCH
CONNECTOR
EXISTING PTO CLUTCH
FROM WIRING HARNESS
EXISTING CONNECTOR
TO
ENGINE
GROUND
GREEN
THIS CONNECTOR COMES
WITH THE
ACCESSORY HARNESS
PURPLE
GREEN/YELLOW
6 WAY WEATHER-PACK
CONNECTOR
FEMALE TERMINALS
05065
REAR CORNER OF FRAME
RELAY MOUNTS IN LEFT
BLACK
GREEN
BROWN
BROWN
6 WAY WEATHER-PACK
CONNECTOR
MALE TERMINALS
HYDRAULIC DECK
LIFT SOLENOID
EXISTING WIRE
TO DECK LIFT
SWITCH
BROWN
RED/WHITE
GREEN/YELLOW
CLUTCH
BROWN
CE
A
40
B
A
CB
FDE
FD
605959 Universal Harness
1 181475 Fuse Auto - 40 Amp.
2 184271 Relay
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.

4
TABLE OF CONTENTS - (CONTINUED)
(continued)
Fuel Solenoid Adjustment ......................................................................................................... 25
Testing Fuel Solenoid ................................................................................................................ 25
Engine Troubleshooting ........................................................................................................ 25-26
Engine Removal ........................................................................................................................ 26
Wiring Circuit Board Removal .................................................................................................. 26
Parking Brake Adjustment ................................................................................................... 26-27
Clutch Removal/Replacement .................................................................................................... 27
Clutch/Brake Burnishing ............................................................................................................ 27
Steering Lever Adjustment ........................................................................................................ 27
Foot Rest Block Installation ...................................................................................................... 28
TRACTION KIT INSTALLATION
Adjusting Traction Spring Tension ............................................................................................. 29
Removing Mower Deck From Traction Kit Equipped Tractor ................................................... 29
Rear Weight Requirements ........................................................................................................ 29
PARTS LIST AND ILLUSTRATION
Tractor Assembly ................................................................................................................ 30-31
Engine Assembly ................................................................................................................. 32-33
Drive Assembly ................................................................................................................... 34-35
Drive Linkage Assembly ...................................................................................................... 36-37
Steering Assembly .................................................................................................................... 38
Reservoir & Hose Assembly ..................................................................................................... 39
PTO Shaft & Clutch Assembly ............................................................................................ 40-41
ROPS & Seat Assembly ...................................................................................................... 42-43
Wiring Diagram ................................................................................................................... 44-45
Limited Universal Harness ......................................................................................................... 46
Counterweight Mount Kit ......................................................................................................... 47
Tail Wheel Options .............................................................................................................. 48-49
Traction Kit .............................................................................................................................. 50
Optional Hydraulic Lift Wiring Diagram ..................................................................................... 51
Optional Hydraulic Lift Assembly ......................................................................................... 52-53
Standard Universal Harness ...................................................................................................... 54
OPTIONAL HYDRAULIC LIFT ASSEMBLY
53
7
7
8
8
8
88
8
8
99
9
9
9
9
10
10
12
12
12
12
12
13
6
13
12
13
14
60
13
13
16
17
16
17
18
18
20
20
20
2
1
3
4
5
6
11
15
20
20
19
19
19
19
21
21
22
23
24
24
25
26
27
28 29
30
31
32
32
33
34
35
36
37
38
39
40
41
42
42
43
43
44
45
46
47
48
49
50
51
52
53
53
54
59
55
56
14
60
63
64
57
58
58
05043
61
61
62
165400
"COLD"
65

5
SPECIFICATIONS
721D2
Engine Kubota three cylinder
4 cycle liquid cooled
Model No. D722
Horsepower (G.I.H.P.) 15.6 kw
Displacement 719 cc
No-load rpm 3250
Charging System 12VDC 12.5 amp.
negative ground
Starter Electric
Electrical System Safety interlocked
PTO 3000 r.p.m. (max.)
Electric clutch
Transmission Dual path
hydrostatic direct drive
Steering Dual levers independently
control speed and direction
of travel.
Zero turning radius (center of
machine is pivot point).
Speed
Forward (variable) 0 to 13.7 km/h
Reverse (variable) 0 to 8.0 km/h
Fuel Tank Capacity 16.3 l.
Tire Sizes
Front Drive Wheels
Standard 22 x 11 x 10 - 4 ply rated
Optional 22 x 10 x 10 - 4 ply rated
Tail Wheel 13 x 6.50 x 6 rib - 4 ply rated
Dimensions of Tractor
Seat Back Height 1.17 m
Seat Cushion Height .78 m
Tractor Width 1.26 m
Tractor Length 1.98 m
Wheel Base 1.26 m
Weight - Uncrated 416.8 kg
Weight - Crated 467.0 kg
Hour Meter Standard
OPTIONAL HYDRAULIC LIFT ASSEMBLY
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
02-05043
Rev. 03-07
52
1 100860 Oil Filter
2 101022 Filter Base Assembly
(includes items 3 – 5)
3 101027 Filter Base
4 360076 Adapter w/O-Ring
5 360077 Adapter w/O-Ring
6 101692 Aluminum Tank Assembly
7 240151 Hook Bolt
8 253035 Whiz Nut
9 253043 Whiz Nut
10 253066 Whiz Nut
11 253173 Whiz Bolt
12 253192 Whiz Bolt
13 253203 Whiz Bolt
14 257062 Washer
15 257106 Washer
16 260648 Cotter Pin
17 261339 Clevis Pin - Sq. Shank
18 263500 Retainer – External
19 280264 Hose Clamp Spring TOC
20 280266 Hose Clamp Spring TOC
21 280268 Hose Clamp Spring
22 281540 Square Key
23 281580 Square Key
24 290021 Cylinder – Hydraulic
290096 Cylinder Seal Kit
25 290074 Pump–Hydraulic CCW w/Solenoid
144950 Solenoid Valve
26 323951 Counter weight
27 360005 Adapter Tee
28 360012 Adapter Fitting
29 360040 Adapter O-Ring
30 360045 Adapter O-Ring
31 360050 Adapter O-Ring
32 360052 Adapter O-Ring
33 360055 Adapter O-Ring 90°
34 360260 Brass Hose Insert
35 363832 Fitting
36 363857 Fitting 90°
37 366115 Reducer Tee
38 388560 Coupler Sleeve Nylon
39 388576 Coupler Hub
259302 Set Screw - Nylon
40 424150 Stabilizer - Coupling
41 424302 Hose Assembly
42 424310 Hose Assembly
43 424349 Hose Assembly
44 821804 Hydraulic Hose
45 604779 Steering Lever Assembly w/Switch
(includes items 46 – 48)
46 422095 Vinyl Cap
47 422179 Handle Grip
48 604799 Switch/Mount Assembly
49 643915 Mount - Weight
50 725326 Pump Mount Plate
51 729691 Weight Cover
52 732614 Oil Filter Base
53 755128 Mount – Aluminum Oil Tank
54 770045 Washer
55 774020 Washer
56 780507 Flow Restrictor
57 821781 Hose – Hydraulic
58 821802 Hose – Hydraulic
59 831039 Flex Coupler
60 887119 Pin – Cylinder Mount
61 360081 Adapter Fitting
62 821806 Hose – Hydraulic
63 257412 Lock Washer
64 243331 Bolt
65 165400 Decal- Oil Specification

6
SAFETY SYMBOLS
This Safety Alert Symbol means ATTENTION!
BECOME ALERT! YOUR SAFETY IS IN-
VOLVED! In this manual, the safety alert symbol
identifies potential hazards and alerts the reader to
safety messages. These hazards may cause serious
injury or death if you do not follow the recom-
mended precautions in the safety messages.
Throughout this manual the word IMPORTANT
provides special mechanical specifications or infor-
mation and is used to indicate that failure to observe
can cause damage to equipment. The word NOTE
emphasizes general information requiring special at-
tention.
51
5
3
1
6
4
2
GREEN
BLACK BLACK
PURPLE
GROUND TO ENGINE
FUSE BLOCK
YELLOW/BROWN
CAB
CBA
BLACK
RED
YELLOW
OPTIONAL HYDRAULIC LIFT WIRING DIAGRAM
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
1 144950 Hydraulic Solenoid
2 183710 Tilt Switch
3 183940 Push Button Switch
4 184973 Weather Pack Connector
5 181460 Accessory Fuse - 7.5 amp Auto
6 722747 Mount - Tilt Switch

7
SAFETY DECALS
Replace Immediately If Damaged
Fig. 1
04075
Part No. 165373
Part No. 165367
Part No. 165370
Part No. 165366
Part No. 165410
Part No. 165374
Part No. 165380
Part No. 165381
165367
165370
165366
165410
165373
165374
165376
Part No. 165376
165369
Part No. 165369
165369
Part No. 165369
165380
165381
Part No. 165368
165368
TRACTION KIT
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
50
01-04061 / 01-04115
Rev. 3-07
1 603699 Rocker w/Bearing Rt.
121764 Oilite Bearing
2 603700 Rocker w/Bearing Lt.
121764 Oilite Bearing
3 644635 Pin
4 604803 Spring Assembly - Offset
5 243395 Bolt
6 254450 Nut
7 247254 Carriage Bolt - Special
8 253890 Lock Nut
9 732410 Lift Strap
10 253192 Whiz Bolt
11 820320 Lift Chain (5 links)
12 253035 Whiz Nut
13 604708 Rocker Arm Extension Kit (opt.)
(includes 2 each of items 11 & 18-22)
14 260523 Hair Pin
15 257040 Washer
16 261362 Clevis Pin
17 262950 Push-on Retainer
18 261339 Clevis Pin
19 260648 Cotter Pin
20 644706 Extension - Rocker Arm
21 253203 Whiz Bolt
22 253043 Whiz Nut
23 820317 Lift Chain (3 Links)
NOTE: Item 13 is not used with
33, 34, 96, 97 & 98 series decks;
use with all other decks and
attachments requiring traction
kit or hydraulic lift.
Not included with tractor assembly.
14 15 23 17 16
16
17
23
15
14
04061
5
6
7
4
1
9
8
9
3
12 18 23
19
10
7
8
9
9
2
12
3
18
23
22
21
20 11
18
19
21
19
22
20 18
11
13
19
04115

8
SAFETY DECALS
165366
165367
165368
Part No.165366
Part No.165367
Part No.165368
1. Warning - Read Operator's Manual.
2. Thrown object hazard - Keep bystanders a safe distance from the machine.
3. Tipping hazard - Do not operate machine on slopes.
4. Tipping hazard - Wear seatbelt.
1. Warning - Remove the ignition key and read the Operator's Manual before servicing or performing main-
tenance.
2. Cutting/dismemberment hazard of toes or foot - Wait until moving parts have stopped completely.
3. Machine runover hazard with cutting/severing, blade - No riders.
4. Machine runover hazard with cutting/severing, blade - Keep bystanders a safe distance from machine.
1. Dust/Fumes inhalation hazard - Read the
Operator's Manual.
1
12 3 4
1234
49
TAIL WHEEL OPTIONS
Rev. 09-06
14
33
35
29
12
28
8
7
27
17
17
16
15 26
25
3
23
4
24
22
23
4
21
31
33
32
18
18
34
20
5
10
9
33
32
32
6
3
4
30
1
13
2
21
21
99021B
14
12
28
33
35
19
11
7
8
10
9
6
3
4
17
17
16
15
30
13
2
1
20
21
21
99023B
11
7
8
99022B
11
11
36 12
11
7
8
11

9
SAFETY DECALS
165369
165376
Part No.165373
1. Electrocution hazard - Do not modify the elec-
trical system.
Part No. 165369
1. Hand/Arm Entanglement hazard, belt - Stay
away from moving parts.
Part No. 165370
1. Hand/Arm Entanglement hazard, fan - Stay
away from moving parts.
Part No. 165376
1. Cutting/dismemberment hazard of hand or fin-
gers - Wait until moving parts have stopped
completely.
Part No. 165380
1. Hot surface - Keep a safe distance.
Part No.165381
1. Fire hazard.
2. Read the Operator's Manual.
3. No smoking.
11
165370
1
165373
1
165380
1
165381
1
23
Part No. 165374
1. Engine coolant under pressure.
2. Warning - Read the Operator's Manual.
3. Warning - Do not touch the hot surface.
165374
1
23
48
1 604366 Dual Fork With Nut
2 243922 Bolt
3 253970 Lock Nut
4 902425 Axle Spacer
5 824534 Pivot Housing - Rear Dual Fork
6 125855 Seal
7 122522 Bearing - Taper
8 123522 Bearing Cup
9 122523 Bearing - Taper
10 123521 Bearing Cup
11 257320 Washer - Spring
12 254505 Jam Nut-Nylon Toplock
13 723008 Bolt Lock
14 481434 Dust Cap - Domed
15 253243 Whiz Bolt
16 257061 Washer
17 833275 Oilite Bearing Reamed
18 253202 Whiz Bolt
19 824508 Axle Beam w/Bushing - Dual
20 830420 Spacer
21 483865 Wheel & Tire Assembly 13 x 6.5 x 6
w/Bearing & Spacer
482355 Tire 13 x 6.5 x 6
483306 Wheel Without Tire 6 x 4.5
22 902475 Bearing Spacer
23 120050 Wheel Bearing
24 247725 Bolt
25 604365 Rear Fork With Nut
26 282615 Spacer
27 125855 Seal
28 643631 Rear Axle Pivot
29 824510 Axle Beam w/Bushing
30 902427 Axle Spacer
31 643015 Pivot Mount Adapter
32 243385 Bolt
33 257412 Lock Washer
34 253043 Whiz Nut
35 243334 Bolt
36 481432 Dust Cap
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
TAIL WHEEL OPTIONS
01-99021B / 01-99022B / 01-99023B
Rev. 09-06

10
FUSE I.D.
30 AMP 7.5 AMP
10 AMP
30 AMP 15 AMP
START IGN.
ACC
REG. MAIN
162311
ACC PTO
INSTRUCTIONAL DECALS
Part No.165401 (Standard)
1. See Operator's Manual for Specifications.
2. Transmission Fluid.
3. Cold Fill Level.
1. Fuse I.D.
2. Starter - 30 AMP
3. Accessory
4. Accessory
Part No.162311
1. Steering Levers
2. Forward
3. Neutral
4. Right Turn
5. Left Turn
Part No.165425
2
1
3
4
5
10
9
8
7
6
3
2
1
5
4
3
2
1
165401
8
7
6
165410
STEERING LEVERS
Forward
Neutral
Right
Turn
Left
Turn
Neutral
Reverse
165425
OFF
ON
Part No.165410
1. Diesel Fuel
1
5. Regulator - 30 AMP
6. Ignition - 7.5 AMP
7. PTO - 10 AMP
8. Main - 15 AMP
Part No.165400 (Hydraulic Option)
165400
"COLD"
2
1
3
1. Transmission Fluid
2. Cold fill specifications - Fluid level should be to the
top of the baffle marked "COLD" inside the tank.
3. Read the Operator's Manual for transmission
fluid specifications.
6. Neutral
7. Reverse
8. Off
9. Park
10. On
Sound Pressure Level
Note: The data contained in this section only per-
tains to units marked with the CE logo ( ).
This unit has an equibalent continuous A-weighted
sound pressure level at the operator ear of 89dBA,
based on measurements of identical machines per
EN 11201.
Sound Power Level
Note: The data contained in this section only per-
tains to units marked with the CE logo ( ).
Model 721D2/3452 Deck has a guaranteed sound
power level of 105 dBA, based on measurements
of identical machines per EN 11094.
47
COUNTERWEIGHT MOUNT KIT
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
503220 Counterweight Mount Kit
1 643915 Weight Mount
2 729691 Weight Cover
3 240151 Hook Bolt
4 253203 Whiz Bolt
5 253043 Whiz Nut Lg Flange
*6 503218 Counterweight - 50#
* Not Included in Kit
95043
95043
4
5
2
5
5
6 *
3
4
3
1
4

11
WORK SAFELY - FOLLOW THESE RULES
The designed and tested safety of this
equipment depends on it being
operated within the limitations as
explained in this manual. Read manual
before operating.
TRAINING
nn
nn
nSafety instructions are important! READ
THIS MANUAL AND ALL SAFETY
RULES.
nn
nn
nKnow your equipment’s controls and how to
stop tractor, engine and attachments quickly
in an emergency.
nn
nn
nTo avoid accident or injury, do not allow any-
one to operate this equipment without proper
instruction. Any person who operates this
equipment MUST be instructed in and ca-
pable of the safe operation of the unit, its
attachments and all controls.
nn
nn
nDo not allow children or unqualified individu-
als to operate equipment.
PREPARATION
nn
nn
nAlways wear relatively tight and belted cloth-
ing to avoid entanglement in moving parts.
Wear sturdy, rough soled work shoes. Never
operate tractor or implements in bare feet,
sandals or sneakers.
nn
nn
nEnsure attachments are properly mounted,
adjusted and in good operating condition.
nn
nn
nMake sure driveline spring-activated locking
collar slides freely and is seated firmly in the
tractor PTO groove.
nn
nn
nCheck brake action before you operate. Ad-
just or service brakes as necessary.
nn
nn
nEnsure all safety switches function properly.
See Operation section for details.
nn
nn
nRemove accumulated debris from attachment
and tractor to avoid fire hazard.
nn
nn
nEnsure all safety shielding is in good condition
and properly installed.
nn
nn
nEnsure either the discharge shield, restriction
plate, or complete vacuum attachment is in-
stalled.
nn
nn
nEnsure all safety decals are installed and in
good condition.
nn
nn
nUse correct counterweights when certain at-
tachments are installed (see specific
accessory installation instructions).
nn
nn
nInspect area to be cut removing stones,
branches and other debris that might be
thrown causing injury or damage.
nn
nn
nEvaluate the terrain to determine what acces-
sories and attachments are needed to
properly and safely perform the job.
nn
nn
nLow-hanging branches and similar obstacles
can injure the operator or interfere with mow-
ing operation. Before mowing, identify
potential obstacles such as low-hanging
branches, and trim or remove those ob-
stacles.
nn
nn
nNever permit any person, other than the op-
erator, to ride or board the tractor or
implements at any time.
nn
nn
nOperate only in daylight or good artificial
light.
FUEL HANDLING SAFETY
nn
nn
nIn certain conditions, gasoline is extremely flam-
mable and highly explosive. A fire or explosion
from gasoline can burn you and others and can
damage property.
nn
nn
nFill the fuel tank outdoors, in an open area,
when the engine is cold. Wipe up any gasoline
that spills.
nn
nn
nDo not fill the fuel tank completely full. Add
gasoline to the fuel tank until the level is .25" to
.5" (6 mm to 13 mm) below the bottom of the
filler neck. This empty space in the tank allows
gasoline to expand.
nn
nn
nNever smoke when handling gasoline, and stay
away from an open flame or where gasoline
fumes may be ignited by a spark.
nn
nn
nStore gasoline in an approved container and
keep it out of the reach of children. Never buy
more than a 30-day supply of gasoline.
nn
nn
nAlways place gasoline containers on the ground
away from your vehicle before filling.
nn
nn
nDo not fill gasoline containers inside a vehicle or
on a truck or trailer bed because interior carpets
or plastic truck bed liners may insulate the con-
46
LIMITED UNIVERSAL HARNESS
(OPTIONAL ON ALL NON-HYDRAULIC LIFT MODELS)
01-05066
Rev 09-06
1
2
THIS CONNECTOR
STAYS WITH TRACTOR
BROWN
TO PTO CLUTCH SWITCH
CONNECTOR
EXISTING PTO CLUTCH
EXISTING CONNECTOR
FROM WIRING HARNESS
TO
ENGINE
GROUND
GREEN
THIS CONNECTOR
COMES
WITH THE
ACCESSORY HARNESS
GREEN/YELLOW
6 WAY
WEATHER-PACK
CONNECTOR
FEMALE TERMINALS
05066
REAR CORNER OF FRAME
RELAY MOUNTS IN LEFT
BLACK
GREEN
BROWN
6 WAY WEATHER-PACK
CONNECTOR
MALE TERMINALS
BROWN
CLUTCH
BROWN
GREEN/YELLOW
RED/WHITE
CE
A
40
B
A
FCD B
DF
E
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
605957 Limited Universal Harness
1 181475 Fuse Auto - 40 Amp.
2 184271 Relay

12
ing or unloading on an enclosed trailer), DO
NOT use seatbelt and drive with extra care.
nn
nn
nDo not move steering levers from forward to
reverse or reverse to forward position rap-
idly. The sudden change could cause loss of
control and/or damage to equipment.
nn
nn
nDo not operate on steep slopes.
nn
nn
nDo not stop, start or change directions sud-
denly on slopes.
nn
nn
nUse extreme care and maintain minimum
ground speed when traveling or operating on
a hillside, over rough ground, or when oper-
ating close to ditches and fences.
nn
nn
nReduce speed on slopes and sharp turns to
minimize tipping and avoid loss of control. Be
careful when changing directions on slopes.
nn
nn
nStay alert for holes, rocks, roots and other
hidden hazards in the terrain. Keep away
from drop-offs.
nn
nn
nStop mower or other attachment and tractor
immediately upon striking an obstruction.
Turn engine off, inspect attachment and trac-
tor. Repair any damage before resuming
operation.
nn
nn
nDisengage power to attachment, stop engine,
remove key and wait for all movement to stop
before dismounting, making adjustments,
cleaning, or unclogging the machine.
nn
nn
nNever transport attachments with PTO run-
ning.
nn
nn
nWatch for traffic when operating near or
crossing roadways.
nn
nn
nThis unit is not equipped for highway use, es-
pecially when safety lighting and marking is
required. It is not a recreational vehicle.
nn
nn
nThis unit is not equipped with a drawbar. Do
not pull loads.
nn
nn
nTake all possible precautions when leaving
tractor unattended: disengage PTO, lower at-
tachment, place controls in neutral, set
parking brake, stop engine and remove key
from ignition.
nn
nn
nMove very slowly when attachment is re-
moved. Never carry passengers.
nn
nn
nDo not run engine in an enclosed area without
adequate ventilation. Exhaust gases contain
carbon monoxide, an odorless and deadly
poison.
tainer and slow the loss of any static charge.
nn
nn
nWhen practical, remove gas-powered equip-
ment from the truck or trailer and refuel the
equipment with its wheels on the ground.
nn
nn
nIf this is not possible, then refuel such equipment
on a truck or trailer from a portable container,
rather than from a gasoline dispenser nozzle.
nn
nn
nIf a gasoline dispenser nozzle must be used,
keep the nozzle in contact with the rim of the fuel
tank or container opening at all times until fueling
is complete.
nn
nn
nNever use cellular phones or other portable
electronic devices when handling fuel.
OPERATIONAL SAFETY
nn
nn
nRead “Operation” section of this manual be-
fore attempting to operate this unit.
nn
nn
nDo not operate without ROPS deployed.
nn
nn
nFenders serve as shields. Do not operate
without them.
nn
nn
nKeep bystanders away from equipment while
it is in operation.
nn
nn
nKeep children and pets a safe distance away.
Never direct discharge toward anyone.
nn
nn
nStart engine from operator’s seat after disen-
gaging tractor power takeoff and placing
steering levers into the neutral swing-out po-
sition.
nn
nn
nKeep hands and feet away from underneath
mower while engine is running. Stay clear of
all moving parts on tractor and attachments.
nn
nn
nProtect against noise. Wear suitable hearing
protection devices to protect against objec-
tionable noise.
nn
nn
nNever allow anyone behind tractor or in front
of implements when operating.
nn
nn
nDo not operate in reverse unless absolutely
necessary and then only after careful obser-
vation of the entire area behind you.
nn
nn
nIf operator must dismount to make adjust-
ments the engine must not be running.
nn
nn
nIf machine is equipped with a fixed ROPS, al-
ways wear seatbelt.
nn
nn
nIf machine is equipped with a foldable ROPS,
always wear seatbelt when ROPS is de-
ployed.
nn
nn
nWhen foldable ROPS must be down (i.e. load-
45
WIRING DIAGRAM
Rev. 09-06
06055
21
18
8
21
16
12
13
17
24
23
7
22
15
3
21
11
20
14
20
19
12
14
6
28
27
13
5
25
26
10
4
2
1
9
29 29
29
PURPLE
START FUSE
30 AMP.
S
TEMP.
BLACK
I
10 AMP.
7.5 AMP.
REGULATOR FUSE
30 AMP.
15 AMP.
SOLENOID FUSE
PTO FUSE
MAIN FUSE
ACCESSORY FUSES
A
30
GREEN
GREEN
WHITE
WHITE
WHITE
BLACK
GREEN
WHITE
BLACK
RED
BLACK W/WHITE
RED
BLUE
BATTERY
G
BLUE
BLUE
YELLOW
GREEN
GREEN
0
BRAKE
BLACK
RED
BLACK
GREEN
YELLOW
GREEN
YELLOW W/BROWN
BLACK
WHITE
WHITE
YELLOW
BROWN
GLOW PLUG
G
NO
OIL
GREEN
HOLD
0
COMM
YELLOW
0
3
BLACK
FUEL
0
1
0
2
4
SEAT
BLACK
PULL
GREEN
OIL
BROWN
SOLENOID
BROWN
A
BLACK
BLUE
AC
BLUE
GREEN
30
GREEN
17
19
GREEN
ALT.
TEMP
-
GREEN
LT
STRG
RT
STRG
ENGINE
GREEN
STARTER
+
50
NC
I
BLACK
B
GREEN
GREEN
YELLOW
BLUE
RED W/WHITE
RED
RED
BROWN
RED W/WHITE
YELLOW W/BROWN
RED
BLACK
BLACK
BLACK
GREEN W/YELLOW
CLUTCH
BROWN
BROWN
BROWN
BROWN
BROWN
GREEN
BLACK

13
MAINTENANCE SAFETY
nn
nn
nAlways perform maintenance with the machine
parked on a hard level surface; with the engine
stopped and the PTO disengaged; with the park
brake set; and with the key removed from the
ignition.
nn
nn
nAlways remove the grounded (-) clamp from
the battery when performing maintenance on the
engine, clutch, or any other electrical system.
nn
nn
nNever work under the machine without jack
stands or other equivalent safety blocks. Do
NOT rely solely on mechanical or hydraulic
jacks or lifts for support. Always use ad-
equate wheel chocks on tires remaining on
the ground.
nn
nn
nHydraulic hoses can fail due to physical dam-
age, kinks, age, and exposure. Check hoses
regularly. Replace damaged hoses.
nn
nn
nEscaping fluid under pressure can penetrate
the skin causing serious injury. Avoid the
hazard by relieving pressure before discon-
necting hydraulic or other lines. Tighten all
connections before applying pressure. If an
accident occurs, see a doctor immediately.
Any fluid injected into the skin must be surgi-
cally removed within a few hours or gangrene
may result.
nn
nn
nSearch for leaks with a piece of cardboard.
Protect hands and body from high pressure
fluids.
nn
nn
nIf it is necessary to run an engine in an en-
closed area, remove the exhaust fumes from
the area with an exhaust pipe extension. If an
exhaust pipe extension is not available, work
near open doors and get outside air into the
area.
nn
nn
nWaste products such as used oil, fuel, cool-
ant, and batteries can harm the environment
and people. Dispose of waste products
properly.
nn
nn
nNever attempt to disconnect or alter any part
of the safety interlock systems.
nn
nn
nKeep engine free of grass, leaves, or excess
grease to reduce fire hazard and minimize en-
gine overheating.
nn
nn
nDo not change engine governor settings.
nn
nn
nKeep tractor and attachments in good oper-
ating condition and all safety devices in place.
nn
nn
nPeriodically tighten all bolts, nuts and screws.
Check that all cotter pins are properly in-
stalled to ensure equipment is in a safe
condition.
nn
nn
nCheck brake operation frequently. Adjust
and service as required.
STORING SAFELY
nn
nn
nNever store equipment with gasoline in the
tank inside a building where fumes may reach
an open flame, spark or pilot light as on a fur-
nace, water heater, clothes dryer, or other
gas appliance. Allow engine to cool before
storing in an enclosure.
nn
nn
nIf engine is to be unused for 30 days or more,
add a fuel stabilizer to the fuel system. Fuel
stabilizer (such as STA.BIL®) is an accept-
able additive in minimizing the formation of
fuel gum deposits during storage. Add stabi-
lizer to gasoline in fuel tank or storage
container. Always follow mix ratio found on
stabilizer container. Run engine at least 10
minutes after adding stabilizer to allow it to
reach the carburetor.
nn
nn
nIf draining fuel tank, drain fuel into an ap-
proved container outdoors and away from
open flame.
nn
nn
nAlways provide adequate ventilation when
running engine indoors. Exhaust gases contain
carbon monoxide, an odorless and deadly
poison.
nn
nn
nRemove attachments from tractor. Remove
all accumulated debris from attachments and
tractor.
nn
nn
nSand areas where paint is chipped and re-
paint to prevent rust. Lubricate all locations
to prevent moisture damage during storage.
44
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
WIRING DIAGRAM
604974 Wiring Assembly - 721D
161131 Decal - Console
1 141160 Coolant Temperature Gauge
2 141200 Voltmeter Gauge
3 182327 Oil Indicator Light
4 182328 Temperature Indicator Light
5 182325 Battery Indicator Light
6 182326 Brake Indicator Light
7 184179 Light Switch
8 183925 Clutch Switch
9 183827 Ignition Switch
10 183860 Safety Switch - Rt. Steering
720160 Rt. Steering Switch Mount
11 183860 Safety Switch - Lt. Steering
720161 Lt. Steering Switch Mount
12 182253 Worklight Assembly
(includes item 13)
13 182005 Light Bulb
14 182251 Bezel
15 603350 Fuel Solenoid
16 184220 Module - Switch Interlock
17 181735 Fuse Holder
181470 Fuse 30 Amp Auto
18 141222 Temperature Sender
19 183871 Seat Safety Switch
20 184272 Relay
21 181722 Fuse Block
184458 1 Wire Clip
184460 2 Wire Clip
184472 Double Clip
22 181470 Fuse 30 Amp Auto
181465 Fuse 15 Amp Auto
181462 Fuse 10 Amp Auto
181460 Fuse 7.5 Amp Auto
23 141551 Hour Meter
24 183894 Brake Switch
25 185530 Voltage Regulator
26 180130 Battery - 12V
243309 Bolt
644163 Battery Box
644478 Battery Box Lid
754135 Battery Hold Down Bracket
27 180313 Battery Cable
425219 Battery Terminal Boot
28 180276 Ground Cable
29 423690 Spacer - PC Board Support
93047 / 01-06055
Rev. 3-07
VOLTS
P
98
23
7
12
93047
THROTTLE
FAST SLOW
OIL
BRAKE
BATTERY
TEMP
ENGAGE
OUT TO
PTO CLUTCH
PULL
HOURS
LIGHTS
OFFON
65
S
t
a
r
t
e
r
S
w
i
t
c
h
S
t
a
r
t
C
o
n
t a
c
t
P
r
e
h
e
a
t
43

14
The purpose of this manual is to assist the operator
in maintaining and operating GRASSHOPPER
tractors. Read it carefully. It furnishes informa-
tion and instructions that will help you achieve
years of dependable performance.
These operating and maintenance instructions
have been compiled from extensive field experi-
ence and engineering data. Some information
may be general in nature due to unknown and
varying conditions. However, through experi-
ence and these instructions, you should be able
to develop operating procedures suitable to your
particular situation.
The illustrations and data used in this manual
were current at the time of printing, but due to
possible in-line production changes your ma-
chine may vary slightly in detail.
GRASSHOPPER reserves the right to redesign
and change the machine as necessary without
notification.
Some illustrations in this manual show
the equipment with safety shields
removed to provide a better view. The
mower should never be operated with
any safety shielding removed.
GENERAL INFORMATION
Fig. 2
Throughout this manual, references are made to
right and left directions. These are determined
by standing at the rear of the equipment and fac-
ing the direction of forward travel.
Mower blade rotation is clockwise as viewed
from the top of mower.
04075
LEFT RIGHT
ROPS & SEATASSEMBLY
29 9
2
1
3
10
27
28
8
5
10
6
26
18
11
24
12
25
22
32
22
8
8
16
22
17
19
20
22
7
24
25
26
3
8
31
8
31 28 27 10
4
6
30
30
31
31
8
23 8
12 35
813
36
34
37
21
33
35
36
34
33
14
814
13
15
23
05087A
38
39
41
40
Rev. 02-06 43

15
Bolt Head Markings
SAE Grade 2
(no dashes)
SAE Grade 5
(3 radial dashes)
SAE Grade 8
(6 radial dashes)
MEASUREMENT CONVERSION
Measurements expressed in this manual are
decimal values. Use the chart below if you are
unsure of a measurement to obtain the fractional
equivalent.
BOLT SIZE AND TIGHTENING
RECOMMENDATIONS
The chart below lists the correct tightening
torque for bolts used on Grasshopper equip-
ment. When bolts are to be tightened or replaced
refer to this chart to determine the grade of bolt
and proper torque (except when specific torque
values are assigned in the manual text).
Decimal
Conversion Table - Inches
Decimal Fraction
0.062
0.125
0.187
0.250
0.312
0.375
0.437
0.500
1/16
1/8
3/16
1/4
5/16
3/8
7/16
1/2
0.562
0.625
0.687
0.750
0.812
0.875
0.937
1.000
9/16
5/8
11/16
3/4
13/16
7/8
15/16
1
Fraction
Decimal Fraction ft lb (Nm) ft lb (Nm) ft lb (Nm)
0.250 1/4 6 (8) 11 (15) 14 (19)
0.312 5/16 13 (18) 21 (28) 25 (34)
0.375 3/8 23 (31) 38 (52) 55 (75)
0.437 7/16 37 (50) 55 (75) 80 (108)
0.500 1/2 57 (77) 85 (115) 120 (163)
0.562 9/16 82 (111) 125 (170) 180 (244)
0.625 5/8 111 (151) 175 (237) 230 (312)
0.750 3/4 200 (271) 300 (407) 440 (597)
0.875 7/8 280 (380) 450 (610) 720 (976)
1.000 1 350 (475) 680 (922) 1035 (1403)
Bolt Diameter in Inches
Recommended Bolt Torque
SAE Grade 2 SAE Grade 5 SAE Grade 8
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
ROPS & SEATASSEMBLY
01-05087A
Rev. 02-06
1 321518 Seat Cushion
2 321519 Back Cushion
3 321523 Arm Rest
4 723386 Side Member – Rt.
5 723387 Side Member – Lt.
6 822630 Seat Edge Trim
7 644816 Seat Bottom
8 253193 Whiz Bolt
9 722388 Seat Panel
10 253191 Whiz Bolt
11 183871 Seat Switch - Twist
12 424095 Seat Isolator
13 644618 Seat Hinge Pin
14 253192 Whiz Bolt
15 253035 Whiz Nut
16 754240 Seat Handle – Dual Latch
17 754226 Reinforcement – Seat Handle
18 730230 Pivot Pin - Seat
19 284408 Torsion Spring
20 260606 Ring Cotter
21 253043 Whiz Nut
22 253176 Whiz Bolt
23 253025 Whiz Nut
24 324200 Seat Belt – Non Retract
25 243551 Bolt
26 257063 Nylon Washer
27 257062 Washer
28 253470 Nut - Nylon Insert
29 324103 ROPS Tube
30 901645 Spacer - ROPS
31 243840 Bolt
32 424176 Flap – Seat Panel
33 253970 Lock Nut
34 283516 Spring – Compression
35 422127 Cap – Seat Spring
36 253203 Whiz Bolt
37 729230 Reinforcement – Brake Pin
38 723272 Deflector - Seat
39 722776 Clamp - Wiring Mount Bracket
40 254431 Speed Nut
41 253173 Whiz Bolt
42

16
OPERATION
The safe operation of this machine is the responsi-
bility of the operator. The operator should be familiar
with the tractor and all attachments that will be used
before starting operation. Refer to and read safety in-
formation on pages 6 through 13.
CONTROLS AND SWITCHES
Know your controls and how to stop tractor, en-
gine and attachments quickly in an emergency.
nStop tractor by moving steering levers to
neutral position (refer to section on
steering lever operation, page 19-21).
nStop engine by turning key to “OFF”
position.
nDisengage power to attachments by moving
PTO switch to “OFF” (down) position.
Operating this unit is not difficult once you mas-
ter the use of the controls. We recommend you
equip the tractor with the attachment you will be
using and practice in a flat open area at a me-
dium throttle setting until you are comfortable
with the controls.
Before operating this machine be sure
the operator-presence safety system
works. The engine should not run
without the operator in the seat if the
PTO switch is on or either steering
lever is in the run position.
Several safety switches are incorporated in the
unit’s design to prevent it from being started out
of neutral or with the PTO engaged. All controls
must be in the “OFF” or neutral position before
the unit can be started. There is a safety switch
under the operator’s seat that will cause the en-
gine to stop should the operator leave the seat
with any control engaged.
PRESTART CHECK LIST
nn
nn
nPlace tractor on level surface.
nn
nn
nCheck crankcase oil level (refer to “Engine
Manual” for proper level and type of oil used).
Never attempt to check oil while
engine is running.
nn
nn
nCheck radiator coolant.
Do not remove radiator cap while
engine is hot!
nn
nn
nRemove and clean air intake screen on radiator.
When mowing in dusty conditions, dry
grass or long grass, it may be necessary
to remove and clean air intake on the
radiator frequently to prevent engine
overheating.
nn
nn
nCheck for grass wrapped around PTO shaft.
When mowing long grass, turn off key and
check for grass wrapped around PTO shaft
every 30 minutes of operation.
Remove fuel solenoid wire to prevent
accidental engine starting before
attempting to remove grass from
around PTO shaft.
nn
nn
nCheck air cleaner (refer to “Engine Manual”).
When mowing in dusty conditions, dry grass
or long grass, it may be necessary to remove
and clean air intake on the air cleaner.
nn
nn
nCheck to be sure engine is free of dirt and debris.
nn
nn
nCheck fuel level. Refer to “Engine Manual” for
correct fuel for your requirements.
Do not fill fuel tank while engine is
running. Allow engine to cool two
minutes before refueling. If fuel is
spilled do not start engine; avoid
creating any source of ignition until
the fuel has evaporated.
nn
nn
nCheck tire pressure (see page 22). Improper
pressure will adversely affect traction, steering
IMPORTANT
41
PTO SHAFT & CLUTCH ASSEMBLY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24 25
27
28
29
29
30
32
33
34
35
36
36
37
37 31
31
31
31
31
31
31
31
31
38
40
39
38
38
38
38
38
38
38
38
38
05090
41
26 42

17
and level cutting height.
nn
nn
nCheck that cooling fins on the transmission
are clean.
STARTING THE ENGINE
Never start the engine in confined
rooms. Exhaust gases contain carbon
monoxide, an odorless and deadly
poison.
Do not allow children to approach the
machine while the engine is running.
Do not operate the machine around
open flames, i.e., trash fires.
Do not operate the engine when an odor
of fuel is present or other explosive
conditions exist.
nn
nn
nPosition yourself on the tractor seat.
nn
nn
nPlace both steering levers in swing-out neu-
tral position.
nn
nn
nPlace electric clutch switch in “OFF” (down)
position.
nn
nn
nSet the throttle at 1/3open.
nn
nn
nInsert the key into the ignition switch and turn
to “ON” (black dot on switch plate).
nn
nn
nCheck to see that the oil lamp and battery
lamp are on.
nn
nn
nTurn the key switch counterclockwise to pre-
heat the glow plugs in the engine. This engine
is equipped with quick heat glow plugs and
the standard preheating time is from 5-10
seconds. Preheating is not required once the
engine is warmed up.
nn
nn
nReturn the key to “START”. When engine
starts release key immediately.
nn
nn
nCheck to see that the oil lamp and battery
lamp are off. If either lamp remains lit a prob-
lem exists in that system.
nn
nn
nWarm the engine up at medium speed for
several minutes.
Action
Left
Steering
Lever
Right
Steering
Lever PTO
Switch
Parking
Brake
Proper
Result
Start Circuits
Kill Circuits (with engine running at 1/2 throttle)
Test Safety Interlock System Daily
Try starting engine
Try starting engine
Try starting engine
Try starting engine
Raise off seat
Raise off seat
Raise off seat
Raise off seat
Move left steering
lever in
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
In
In
In
In
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
On
On
On
On
On
On
On
On
On
On
Engines Cranks
Engine will not crank
Engine will not crank
Engine will not crank
Engine does not stop
Engine Stops
Engine Stops
Engine Stops
Engine Stops
Engine Stops
Move right steering
lever in
40
PTO SHAFT & CLUTCH ASSEMBLY
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
05090
1 644725 Splined Power Shaft
2 122044 Pillowblock Bearing
3 398914 Sleeve Sect. Q.D. Drive Shaft
4 401019 Yoke Splined Quick Disconnect
5 121010 Cross & Bearing
6 401017 Yoke w/Sleeve
7 415650 Sheave
8 281588 Gib Key
9 824637 Clutch Stub Shaft
10 270075 Socket Hd
11 388769 Electric Clutch
12 388872 Field Assembly w/Brake
13 388862 Armature & Rotor Assembly
14 729287 PTO Shaft Shield
15 422088 Clutch Bracket Cover
16 902583 Spacer
17 883803 Retaining Washer
18 257412 Lock Washer
19 243337 Bolt
20 824499 Idler Arm (includes items 21 & 37)
21 881105 Bearing Pivot Shaft
22 243355 Bolt
23 415610 Idler Pulley
24 243805 Bolt
25 257452 Lock Washer
26 283820 Spring Extension w/Swivel
27 732539 Idler Spring Bracket
28 725118 Clutch Anti-Rotation Bracket
29 381914 Drive Belt (two required)
30 725286 Rear Sheave Guard
31 253043 Whiz Nut
32 257040 Flat Washer
33 422098 Vinyl Cap
34 263660 External Retainer
35 283525 Compression Spring
36 300014 Steel Ball
37 121756 Oilite Bearing
38 253203 Whiz Bolt
39 253192 Whiz Bolt
40 253035 Whiz Nut
41 422520 Nylon Bearing
42 822684 Clear Hose

18
nn
nn
nThe operator is responsible for safe opera-
tion on slopes. Only the operator can
determine the stability of the machine on a
given slope based on existing conditions
like: machine speed and direction, slope
variation, slipperiness, drop-offs, holes,
obstacles, etc.
nn
nn
nTo determine stability on a slope, start at
the bottom and try to drive the machine up
the slope slowly. If you cannot drive up
the slope or if you feel uneasy on it, do not
operate on it.
nn
nn
nAlways start mowing at the bottom of
slopes. Traveling up slopes, this machine
has more traction traveling in reverse than
forward. Be careful on slopes to avoid
driving into a position where there is not
enough traction to enable driving out or
stopping.
nn
nn
nTires may lose traction on slopes even
though the brakes are functioning properly.
nn
nn
nAvoid sudden stops and deceleration when
traveling forward downhill as mower may
tip forwards.
nn
nn
nDo not mow slopes when grass is wet be-
cause slippery conditions will reduce
traction and braking which in turn affects
steering.
nn
nn
nUse caution when making turns. Slow the
mower down before making sharp turns.
Unit can spin very rapidly by positioning
one lever too much ahead or behind the
other.
nn
nn
nLook around you to be sure the area is
clear before turning or backing up.
nn
nn
nAvoid starting or stopping on a slope. If
tires lose traction, disengage the blades
and proceed slowly straight down the
slope.
nn
nn
nKeep all movement on slopes slow and
gradual. Do not make sudden changes in
speed or direction.
nn
nn
nPass diagonally through sharp dips and
avoid sharp drops.
nn
nn
nFollow manufacturer’s recommendation
for counterweights for added stability
when operating on slopes or using front or
rear mounted attachments. Remove
If the engine does not start within 10
seconds after the starter is engaged,
stop cranking the engine and wait for 30
seconds. Repeat starting sequence
(including the preheating sequence).
Also, if the engine will not start after
refueling or after setting for a
prolonged period, refer to bleeding fuel
lines in the “Engine Troubleshooting”
section of this manual. Never allow the
starter motor to run continuously for
more than 30 seconds. Be sure to warm
engine up regardless of season.
Loading an insufficiently warmed up
engine will shorten its service life.
COLD WEATHER STARTING TIPS
Use proper viscosity oil for temperature expected
(refer to “Engine Manual”).
Set throttle half open.
A warm battery has better starting capacity than
a cold one.
Use fresh winter grade fuel. It is better for winter
starting than leftover summer grade fuel.
UNEVEN TERRAIN
Be careful when operating machine on
uneven ground.
Do not operate on steep slopes.
Operation on a steep slope could cause
loss of control, machine to overturn and
personal injury or death.
nn
nn
nDo not operate on steep slopes. This ma-
chine was not specifically designed to
operate on steep slopes.
IMPORTANT
39
RESERVOIR & HOSE ASSEMBLY
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
04114
1 723225 Plate – Filter Base
2 822332 Fluid Reservoir
421990 Cap - Reservoir
3 821724 Clear Vent Hose
4 253192 Whiz Bolt
5 253035 Whiz Nut
6 253200 Whiz Bolt
7 253043 Whiz Nut
8 253173 Whiz Bolt
9 101024 Filter Base
10 100855 Oil Filter
11 360057 Adapter
12 363846 Fitting 90°
13 821792 Hose - Hydraulic
14 821786 Hose - Hydraulic
15 821784 Hose - Hydraulic
16 280264 Hose Clamp – Spring
17 366551 Strainer – In Line
18 603611 Wheel Motor W/Hub
19 360063 Adapter - O-Ring
20 391434 Hydro – H2 Lt.
21 391435 Hydro – H2 Rt.
22 363864 Fitting O-Ring
23 360064 Adapter - O-Ring
24 424371 Hose Assembly
25 424372 Hose Assembly
26 424316 Hose Assembly
27 165401 Decal - Reservoir
1
8
5
76
3
611
911 12
16
15
10
16
4
4
2
16
13
16
17
15
16
19
19
16
17
16
13
16
14
16 18
18
25
24
23 23
22
19
19
16
26
16
25
24
23 23
22
11
12 21
20
11
12
04114
LEFT
SIDE
RIGHT
SIDE
165401
27

19
weights when not required.
nn
nn
nUse extra care with grass catchers or other
attachments. These can change the stabil-
ity of the machine. Do not use grass
catcher on steep slopes.
nn
nn
nDo not operate without ROPS deployed.
nn
nn
nIf machine is equipped with a fixed ROPS, al-
ways wear seatbelt.
nn
nn
nIf machine is equipped with a foldable ROPS,
always wear seatbelt when ROPS is de-
ployed.
nn
nn
nBe certain that the seatbelt can be released
quickly if the machine is driven or rolls into
ponds or water.
nn
nn
nCheck carefully for overhead clearances
such as, branches, doorways, or electrical
wires, before driving under any objects
and do not contact them.
STOPPING THE ENGINE
nn
nn
nSet the throttle at 1/3open. Allow engine to
idle at this setting for several minutes, then
move the throttle to slow idle.
nn
nn
nMove ignition switch to “OFF” position (up-
right) and remove key.
Always remove key from ignition
switch when leaving unit unattended or
when not in use.
Emergency shutdown of engine:
If the engine does not stop running with the
throttle at slow idle and the starter switch in the
“OFF” position, the following procedure will stop
the engine.
nn
nn
nUnplug the wires from the fuel shut-off sole-
noid (item 30, page 33).
nn
nn
nPush the engine stop lever forward toward
the radiator (refer to the Engine Manual’s il-
lustration showing the location of the engine
stop lever).
nn
nn
nIt is important that the operator be familiar with
where the parts are located on the engine.
MOVING UNIT WITHOUT POWER
The hydro pumps are equipped with a dump valve
(Refer to Fig. 3) that allows the unit to be moved
without power by deactivating the pump. With the
dump valve lever in normal operating position
the fluid in the pump will make it difficult to
move the unit (even with the steering levers in
neutral position). The dump valve is located on
the bottom toward the right front of each hydro
pump. Activate the dump valve by rotating
counter-clockwise with a .625 inch wrench. Ro-
tate one revolution. When BOTH hydro pumps
are deactivated the unit becomes “freewheeling”
allowing it to be moved. Before the hydro pumps
become operational the dump valves must be
returned to their normal operating position.
Do not tighten above 120 in lbs (10 ft lbs)
(14Nm) maximum.
STEERING LEVER OPERATION
(refer to Fig. 4, page 21)
Do not move steering levers from
forward to reverse or reverse to
forward position rapidly. The sudden
change could cause loss of control or
damage to equipment.
The Grasshopper tractor is very
unstable without an attachment.
Move very slowly when attachment is
removed. Never carry passengers.
Fig. 3
Dump Valve
01096
38
STEERING ASSEMBLY
1 604778 Steering Lever Assembly
(includes item 5 and 6)
2 643926 Steering Lever Mount
3 253195 Hex Whiz Bolt
4 253450 Nut -Nylon Insert
5 422179 Handle Grip - Foam
6 422095 Vinyl Cap
7 604771 Steering Pivot Rt. w/Stop & Bearings
8 604772 Steering Pivot Lt. w/Stop & Bearings
9 422559 Bearing w/Flange
10 422557 Bearing
11 257019 Washer
12 257063 Nylon Washer
13 422556 Bearing w/Flange
14 283324 Compression Spring
15 253470 Nut- Nylon Insert
16 243197 Stop Bolt
17 254438 Nut Adj. Lever
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
ItemItem
ItemItem
Item OrderOrder
OrderOrder
Order DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No. No.No.
No.No.
No.
97023D
1
1
2
2
3
3
4
4
5
5
6
7
8
9
9
9
10
10
9
16
12
12
13
13
14
14
15
15
15
15 16
16
97023D
17
17
11
11

20
IMPORTANT
Steering levers control speed and direction of
movement. Pushing the levers forward will move
the tractor forward. Pulling levers to the rear will
move tractor in reverse. The further forward or
rearward the steering levers are moved, the faster
the machine will move.
At half throttle move both steering levers from
swing-out neutral inward. Move both steering le-
vers forward. To turn right, advance left lever
further forward than right lever. To turn left, ad-
vance right lever further forward than left lever. If
you leave one steering lever in neutral and ad-
vance the other lever, the tractor will turn a
complete circle. Move the levers to the rear and
practice turning and maneuvering in reverse.
Once you learn how the controls operate, prac-
tice until you become proficient and are
comfortable with the unit before you begin opera-
tion with an attachment.
If you become confused during
operation release both steering
levers, they will automatically return
to the centered neutral position and
the tractor will stop.
37
DRIVE LINKAGE ASSEMBLY
1
2
3
3
13
12
36
14
45
5
4
5
6
8
7
10
9
11 16
28
26
25
20
18
15
25
26
27
22
23
16
36
28
26 25
19 17
16
11
7
12
13
45 14
856
4
5
10
9
16 21
23
15
25
26 27
LEFT
SIDE
RIGHT
SIDE
41
14
14
48
40 48
46
35
32
31
32
34
39 42 10
38 10
39
26
24
44
45
14 10
37
10
9
30
47
29
47
30
45
9
10 37
43
26
39
10
38
10
14 31
32
32
33
35
46
39
42
14
14
05089