ISEKI FRONT MOWERS
MODELS:
SF310
SF370
SF310
SF370
1
INTRODUCTION
INTRODUCTION
Thank you very much for purchasing an ISEKI front mower.
This operator’s manual provides the information necessary for operating and maintaining your front mower safely and
properly. The contents are mainly composed of the following two items:
SAFETY INSTRUCTION: Essential items which you should observe while operating the front mower.
TECHNICAL INSTRUCTION: Items which are necessary to operate, adjust, and service the front mower
properly.
Every time you see the words and symbols shown below in the manual and on the safety decals, you must take note
of their instructions and warning.
DANGER: This symbol together with the words DANGER indicates an imminently hazardous situation that, if
not avoided, will result in VERY SERIOUS INJURY OR EVEN DEATH.
WARNING: This symbol together with the word WARNING indicates a potentially hazardous situation that, if
not avoided, could result in SERIOUS INJURY OR EVEN DEATH.
CAUTION: This symbol together with the word CAUTION is used to indicate a potentially hazardous situation
that, if not avoided, may result in MINOR INJURY.
IMPORTANT: The word IMPORTANT is used to provide instructions or advice in order to let the front mower provide
the optimum performance.
NOTE: The word NOTE is used to indicate points of particular interest for more efficient and convenient repair or oper-
ation.
Before starting to operate the front mower for the first time, you should read this operation manual thoroughly and
carefully until you are sufficiently familiar with the operation of the front mower in order to do jobs safely and properly.
You are advised to refer to it from time to time to refresh your understanding of the front mower.
The manual should be kept in a handy place so you can refer to it when required.
The parts employed in this front mower may be modified without notice for better performance and quality and for safe-
ty purposes, which may lead to some inconsistency found on your front mower with the contents of this manual.
The front mower is designed to be used on well-kept lawns. Using the front mower in other places is not authorized.
Besides, the manufacturer will not pay for any damage caused by unauthorized use and the risk is only borne by the
user. Proper use of the front mower also implies that the user follows the operational, adjusting, and servicing instruc-
tions indicated in the operation manual.
When you have any question about your front mower, you are always welcome to ask your dealers.
All information, illustrations, and specifications contained in this manual are based on the latest information available at
the time of publication. The right is reserved to make changes at any time without notice.
2
SF310,370
INTRODUCTION .......................................................... 1
TABLE OF CONTENTS ............................................... 2
ABBREVIATION LIST ................................................... 4
UNIVERSAL SYMBOLS ............................................... 4
1. FOR SAFE OPERATION ........................................ 5
1. HOW TO BE A SAFE OPERATOR ..................... 5
2. BEFORE STARTING THE FRONT MOWER...... 6
3. OPERATION OF THE FRONT MOWER............. 7
4. OPERATION ON A SLOPE................................. 9
5. DRIVING ON PUBLIC ROADS ........................... 10
6. LOADING ONTO OR UNLOADING
FROM A TRUCK ................................................. 10
7. WHEN FILLING WITH FUEL............................... 11
8. MOUNTING AND DISMOUNTING OF
THE MOWER DRIVE SHAFT ............................. 11
9. INSPECTION AND MAINTENANCE ................... 12
10. MAINTENANCE OF THE ELECTRIC
SYSTEM.............................................................. 14
10.1. TO MAINTAIN ELECTRIC WIRING........... 14
10.2. TO HANDLE THE BATTERY ..................... 14
10.3. TO HANDLE BOOSTER CABLES ............. 14
11. TIRES AND WHEELS ......................................... 15
12. BEFORE STORING THE FRONT MOWER........ 15
13. LONG TERM STORAGE..................................... 15
14. CAUTION LABELS & THEIR POSITIONS .......... 16
2. WARRANTY AND AFTER-SALE CARE ................ 20
1. WARRANTY ........................................................ 20
2. AFTER-SALE CARE ........................................... 20
3. SERIAL NUMBER PLATE................................... 20
4. SUPPLY LIMIT OF SPARE PARTS .................... 20
3. SPECIFICATIONS ................................................... 21
4. NAME OF MAJOR COMPONENTS........................ 22
5. CONTROLS AND METERS .................................... 23
1. CONTROL PANEL .............................................. 23
1.1. STARTER SWITCH ................................... 24
1.2. WORK LAMP SWITCH .............................. 24
1.3. POSITION SWITCH (G type) ..................... 24
1.4. PTO SWITCH............................................. 24
1.5. COMBINATION SWITCH (G type)............. 24
1.6. HAZARD SWITCH (G type) ....................... 25
1.7. MONITOR LAMP ARRAY .......................... 25
1.8. FUEL GAUGE ............................................ 26
1.9. HOUR / TACHOMETER ............................ 26
1.10. COOLANT TEMPERATURE GAUGE........ 26
2. STEERING POST ............................................... 27
2.1. THROTTLE LEVER ................................... 27
2.2. AUTO / 4WD CHANGEOVER
LEVER(4WD LEVER) ................................ 27
2.3. TILT LOCK LEVER .................................... 28
3. FLOOR PEDALS AND LEVERS ......................... 28
3.1. MASTER BRAKE PEDAL .......................... 29
3.2. HST FORWARD TRAVEL PEDAL............. 29
3.3. HST REVERSE TRAVEL PEDAL .............. 29
3.4. INDEPENDENT BRAKE
PEDAL (RH)(E6 type) ................................ 29
3.5. INDEPENDENT BRAKE
PEDAL (LH)(E6 type) ................................. 29
3.6. DIF-LOCK PEDAL...................................... 29
3.7. PARKING BRAKE
LEVER(Except G type) .............................. 30
4. FENDER (WING) PANEL .................................... 30
4.1. TRANSMISSION RANGE
SHIFT LEVER ............................................ 30
4.2. LIFT LEVER ............................................... 30
4.3. CRUISE CONTROL LEVER ...................... 31
4.4. PARKING BRAKE LEVER (G type) ........... 31
5. SAFETY SWITCHES........................................... 31
6. PRE-OPERATIONAL ROUTINE INSPECTION ...... 32
1. INSPECTION ITEMS........................................... 32
2. WAY OF INSPECTION AND MAINTENANCE.... 32
7. OPERATION............................................................ 33
1. BEFORE STARTING THE ENGINE.................... 33
2. STARTING THE ENGINE ................................... 33
3. STOPPING THE ENGINE ................................... 35
4. TRAVELLING ...................................................... 36
5. CRUISE CONTROL ............................................ 37
6. STOPPING .......................................................... 38
7. MOWING ............................................................. 39
8. MAINTENANCE ...................................................... 41
1. SERVICE ACCESS ............................................. 41
2. ENGINE OIL LEVEL ............................................ 42
3. TRANSMISSION OIL LEVEL .............................. 43
4. REDUCTION GEAR CASE OIL LEVEL .............. 43
5. REAR AXLE OIL LEVEL ..................................... 44
6. COOLANT LEVEL ............................................... 45
7. FUEL LEVEL ....................................................... 45
8. AIR-CLEANER .................................................... 46
9. FUEL STRAINER ................................................ 46
10. FUEL HOSES...................................................... 47
11. FAN BELT ........................................................... 47
TABLE OF CONTENTS
3
TABLE OF CONTENTS
12. MASTER BRAKE PEDAL PLAY ......................... 48
13. NEUTRAL POSITION OF HST ........................... 48
14. INDEPENDENT BRAKE PEDALS (E6 type) ....... 50
15. WHEEL TIGHTENING BOLTS AND NUTS ........ 50
16. BATTERY ............................................................ 51
17. TIRE PRESSURE (INFLATION) ......................... 52
18. STEERING WHEEL (TOE-IN) ............................. 52
19. ENGINE OIL REPLACEMENT ............................ 53
20. ENGINE OIL FILTER........................................... 54
21. TRANSMISSION OIL REPLACEMENT .............. 54
22. HYDRAULIC OIL FILTER.................................... 55
23. SUCTION FILTER ............................................... 55
24. REDUCTION GEAR CASE OIL
REPLACEMENT.................................................. 56
25. REAR AXLE OIL REPLACEMENT...................... 57
26. AIR-INTAKE OPENINGS .................................... 57
27. RADIATOR .......................................................... 58
28. COOLANT REPLACEMENT ............................... 58
29. FUSES AND WIRING.......................................... 59
30. HYDRAULIC SYSTEM PARTS ........................... 60
31. SAFETY SWITCHES........................................... 60
32. FILLING DIAGRAM ............................................. 61
33. PERIODICAL INSPECTION TABLE ................... 62
9. STORAGE ............................................................... 63
10. TROUBLESHOOTING ............................................ 64
1. ENGINE............................................................... 64
2. BRAKE SYSTEM................................................. 66
3. LIFT SYSTEM ..................................................... 66
4. STEERING SYSTEM .......................................... 67
5. HST (Hydrostatic transmission) ........................... 67
6. ELECTRICAL ACCESSORIES ........................... 68
NOISE & VIBRATION ................................................... 69
WIRING HARNESS CABLE.......................................... 71
4
ABBREVIATION LIST
Abbreviations
PTO
PT
RH / LH
ROPS
RPM
SAE
SSM
Definitions
Power Take Off
Permanent Type
Right - hand and Left - hand sides are determined by facing in the direction of
forward travel
Roll - Over Protective Structure
Revolutions Per Minute
Society of Automotive Engineers
Side discharge Mower
SF310,370
UNIVERSAL SYMBOLS
Safety Alert Symbol
Operation manual
Preheat
Engine - Stop
Engine - Run
Starter Control
Engine - Revolution
Fast
Slow
Mower - deck
Mower -Lowered position
Mower - Raised position
Cutting Height
Power Take - Off Clutch Control - Off position
Power Take - Off Clutch Control - On position
Battery
Diesel Fuel
P
Parking Brake
5
1. HOW TO BE A SAFE OPERATOR
1.1. Before starting the front mower for the first time,
read this manual thoroughly and carefully.
Especially abide by the instructions for safe opera-
tion. If you do not, it may result in bodily injuries.
1.2. Pay attention to the caution labels on the front
mower and mower deck and observe the instruc-
tions they give to avoid physical injuries.
1.3. Be sure to use necessary protective devices such
as headgear, safety glasses, safety shoes, ear
plugs, gloves, etc.
1.4. If you have consumed intoxicating beverages, are
drowsy from medication, ill, or tired, never operate
the front mower.
1.5. When operating, adjusting, or servicing the front
mower, always wear substantial shoes and long
trousers. Avoid wearing long loose clothes, acces-
sories or letting long hair hang loose, which could
be caught in rotating parts or on projections.
1.6. When you let someone else operate the front
mower, instruct this person how to operate the front
mower and also advise the reading of this manual.
Never lend the mower to anyone who cannot under-
stand the contents of this manual and safety labels.
Operation of the front mower by a person unfamiliar
with the front mower may lead to an unexpected
accidents.
1.7. Never permit the following persons to operate the
front mower:
- Persons not properly trained to operate the front
mower
- Persons who cannot understand the instructions
mentioned in this operation manual and on the
caution labels
- Pregnant women
- Children
Local regulations may restrict the age of the operator.
1.8. Inspect the front mower periodically. If not, this may
not only shorten the front mower’s service life but
also make safe and efficient operation impossible.
CHAPTER 1. FOR SAFE OPERATION
CHAPTER 1. FOR SAFE OPERATION
6
2. BEFORE STARTING THE FRONT MOWER
2.1. Set up an operation plan with sufficient time
allowance. A tight plan may result in unexpected
accidents. Especially when operating the front
mower under extremely hot, cold, or humid circum-
stances, set up an operation schedule or method
which will ensure operational safety.
2.2. Thoroughly inspect the area where the front mower
is to be used and remove all stones, sticks, wires,
and other foreign objects. Otherwise, they will be hit
by the mower blades, which may lead to serious
accidents.
2.3. The front mower is equipped with various safety sys-
tems. All safety shields, guards, and covers should
always be in position and functioning properly.
2.4. Before starting the engine, make sure that every-
thing is safe around the front mower and all control
levers are in the neutral or off positions, the parking
brakes applied, and the PTO switch in the OFF posi-
tion. Otherwise, unexpected accidents may occur.
2.5. Start the engine with the starter switch only. Never
attempt to start the engine by shorting the termi-
nals, or the front mower may move abruptly, and
result in unexpected accidents.
2.6. Never start the engine in a closed place. Exhaust
fumes contain poisonous carbon monoxide, so suf-
ficient ventilation should be provided when starting
the engine indoors.
2.7. Make sure of safety around the front mower and
move slowly when starting. Abrupt starting may
casue unexpected accidents.
2.8. Become familiar with the operation, particularly, the
stopping of the front mower. You should be skilful
enough to be able to stop the front mower at will.
2.9. When your front mower is equipped with an imple-
ment other than a standard mower deck, such as a
collector, a cabin, etc., never fail to ask your dealers
about machine balance. Always follow their advice.
2.10. Keep in mind that the operator or user is responsi-
ble for the accidents or hazards caused by the front
mower to other people or their property.
2.11. Especially before starting the mower, be sure to
perform advised pre-operation inspections especial-
ly on the brakes and inspect visually to see that the
blade and blade tightening nuts are not worn, dam-
aged or loose. Replace worn or damaged blade and
nuts as an assembly to preserve blade balance.
Otherwise, poor braking or scattered broken blades
may result, which is very dangerous.
SF310,370
7
2.12. When operating the front mower equipped with
attachment which is not ISEKI made at the slope,
be sure to equip with front mower with balance
weights. If you have any question, please consult
your dealer.
3. OPERATION OF THE FRONT MOWER
3.1. During operation, never allow anyone, especially
children, and animals to be in the vicinity of the front
mower, especially near the discharge of the mower
deck.
3.2. When you are working with co-workers, be sure to
alert them by signalling before you take a new
action.
3.3. Be sure to mow only in daylight. Mowing in the dark
may cause unexpected accidents.
3.4. When operating the front mower, you should be
seated in the operator’s seat properly, hold the
steering wheel by both hands, and look in the direc-
tion in which the front mower advances. Avoid look-
ing a side or holding the steering wheel by one
hand during operation.
3.5. Always be sure to operate the front mower from the
driver’s seat with seat belt. Never attempt to get on
or off the front mower wihile it is travelling.
3.6. Never allow other persons to get on the front mower
during operation.
3.7. When turning the front mower, slow down sufficient-
ly. Turning at high speed may cause the front
mower to turn over.
3.8. Never attempt to depress the dif-lock pedal while
turning around the front mower. Turning with the dif-
lock on may cause the front mower to turn over.
3.9. Connect the independent brake pedal except nec-
essary situation. Never operate the independendent
brake pedal during travelling as this will cause the
front mower to skid sideways or turn over. When
stopping, be sure to use the master brake pedal.
(E6 type)
3.10. When reversing the front mower, make sure of the
safety conditions behind.
CHAPTER 1. FOR SAFE OPERATION
8
3.11. Never operate the front mower in terrain where there
are ditches, holes, or steps easy to collapse. In such
a place, the front mower could turn over or fall.
3.12. Before making access to moving parts, stop the
engine, and keep your hands, feet, clothing, acces-
sories and etc. away so as not to be caught in the
moving parts of the front mower.
3.13. Always pay attention in front of the front mower to
avoid obstacles such as corner stones, stubs, sprin-
kler heads, etc. When there is an obstacle that can-
not be removed, provide a marker flag as a warning
to keep away from it when mowing. When
approaching the obstacle, slow down the front
mower sufficiently to avoid it.
3.14. Never rest a foot on the brake pedal. If so, the
brakes disc wear rapidly, which may lead to serious
accidents.
3.15.Travelling set with the cruise lever should be
restricted only to operations in specious, flat areas
with an unobstructed view and used with the range
shift lever always kept in the low speed position.
3.16. Never attempt to do the mowing operation without
the discharge cover in place or with the cover left
open.
3.17. Never attempt to operate without the drive shaft
cover in place.
3.18. Adjust the cutting height with the gauge wheels in
accordance with the condition of the ground surface
at the working site. Mowing on rough ground with
low cutting height may cause the blades to hit soil
or stones, which is very dangerous.
3.19. After striking a foreign object, stop the engine and
inspect the front mower and the mower deck for
damage and be sure to make repairs before mow-
ing again.
3.20. Be sure to keep the grass discharging part clean. A
clogged discharging part may cause the discharge
cover to open, resulting in scattering of grass and
stones, which is very dangerous.
3.21. Never allow grass or leaves to accumulate around
heated parts such as the engine and the muffler, or
this may cause a fire.
3.22. Before moving the front mower to another place, be
sure to stop the mower blades and lift up the mower
deck. Otherwise, they may hit stones and scatter
them around, which is very dangerous.
SF310,370
9
3.23. When driving over a levee or step, stop the mower
blades, lift up the mower deck, and move the front
mower straight to the levee and make it climb over
slowly. Avoid climbing over a levee too high, or the
front mower may fall sideways or turn over.
3.24. Before stopping the engine, be sure to lower the
mower deck onto the ground, apply the parking
brakes, shift the range shift lever in neutral and turn
the PTO switch to the OFF position.
3.25. Before leaving the front mower, stop the engine,
lower the mower deck onto the ground, draw the
engine key, apply the parking brakes, and chock
the wheels. The front mower should be parked in a
place which is flat and spacious, and has hard sur-
face in order to avoid unexpected moving of the
front mower.
3.26. Never attempt to use the front mower to draw an
implement or a trailer. It is not designed to draw a
load.
4. OPERATION ON A SLOPE
We cannot recommend the front mower with this mower
deck be operated on a slope, but advise you to use a
machine designed for slope operation. On a slope, vari-
ous elements of operation such as slope angles, ground
conditions, way of operation, grass conditions, etc. may
lead to slipping, or over-turning, which may result in bodi-
ly injury.
If the front mower has to be used on a slope, remember
there is no such thing as a "safe" slope. Never use it on a
slope of more than "10° ". Even if using it on a slope of
less than "10° " , be sure to abide by the following instruc-
tions.
A slope angle of 10°is specified with the front mowers
equipped with the attachments mentioned respectively.
- The front mower is not equipped with any attachments
or a cabin.
- The front mower is equipped with a standard mower
deck.
When your front mower is equipped with an implement
other than standard, such as a collector, a cabin, etc.,
never fail to ask your dealers about machine balance.
Always follow their advice.
4.1. Be sure to wear a helmet during operation.
4.2. Be sure to shift the 4WD lever to the 4WD position.
4.3. Operate at sufficiently low speeds.
4.4. When turning, be sure to slow down sufficiently.
CHAPTER 1. FOR SAFE OPERATION
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Iseki SF310 SF370 Front Mower Operation Maintenance Service Manual # 1
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Description
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