ZETOR
This operator’s manual will help you to become familiar with the operation and maintenance of your new tractor.
In spite of fact many of you have reach experiences in operation of various Zetor tractor models, please, read
carefully all safety rules and operating instructions in this operator’s manual before attempting to operate the
tractor.
You will find a lot of new information and receive a perfect overview how to use the tractor with highest efficiency at
various operations.
Your new Zetor tractor will be your reliable friend if observing the mentioned safety rules, tractor maintenance and
safe operation.
Manufacturer of Your tractor wishes you thousands of satisfactorily worked hours.
ZETOR
Brno
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Information about technical specifications, design, equipment, material, and external appearance is valid in the time of this
operator’s manual issue. Manufacturer reserves rights for changes.
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CONTENTS
The operator’s manual contains description, operation and maintenance of
standard and optional tractor equipment.
The option that isn’t a part of standard
tractor equipment can’t be a subject of
claim in case it isn’t assembled from
factory and is marked by (∗) in this ma-
nual.
Service check book isn’t a part of opera-
tor’s manual. This is the separate booklet that is passed to you at purchasing of
your new tractor.
Page
Location of serial numbers..........................................................................................6
Safety instructions for users........................................................................................ 8
Preventive daily service ............................................................................................11
Acquaintance with tractor.......................................................................................... 19
Operation ..................................................................................................................43
Transportation...........................................................................................................57
Agricultural machine PTO drive ................................................................................65
Hydraulic system.......................................................................................................73
Front and rear axle....................................................................................................89
Ballast weights ..........................................................................................................99
Tractor maintenance ............................................................................................... 105
Maintenance instructions ........................................................................................127
Adjustment..............................................................................................................153
Electrical installation ............................................................................................... 167
Main technical parameters ......................................................................................181
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CAB TRACTORS
ZETOR 3321 - 33 kW
ZETOR 4321 - 44 kW
ZETOR 5321 - 47 kW
ZETOR 6321 - 51 kW
ZETOR 7321 - 58 kW
A 1
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CAB TRACTORS
ZETOR 3341 - 33 kW
ZETOR 4341 - 44 kW
ZETOR 5341 - 47 kW
ZETOR 6341 - 51 kW
ZETOR 7341 - 58 kW
A 2
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LOCATION OF SERIAL NUMBERS
M97-vyrcisla
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LOCATION OF SERIAL NUMBERS
Whenever you contact your authorized service dealer or the factory for order of service parts, always know the model and serial
numbers of your tractor. For your convenience, write those numbers in the frames below.
Tractor model
ZETOR 3321 ZETOR 3341
ZETOR 4321 ZETOR 4341
ZETOR 5321 ZETOR 5341
ZETOR 6321 ZETOR 6341
ZETOR 7321 ZETOR 7341
The “left“, “right“, “front“ and “back“ side
of the tractor is determined by sitting on
the seat in the normal operator’s position
and in the traveling direction.
Manufacturer reserves rights for changes of design and option, that improves
the tractor features.
Tractor serial number Engine serial number
A 7
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SAFETY INSTRUCTIONS FOR USERS
You will find this symbol at all important
warnings identifying the safety of tractor
operation. Keep all safety massages
and however regardless of the hazard,
be extremely careful. Inform your cooperators and other users on these massages.
GENERAL SAFETY REGULATIONS
1. Only a trained operator having a valid
driving license and being properly
acquainted with operating and safety
rules can operate the tractor.
2. Except of safety warnings mentioned
in this operator’s manual you must respect all general safety and traffic regulations of country where the tractor
works.
PROPER CLOTHING
3. Don’t wear a loose clothing and free
flying long hair at operation.
4. Use suitable (prescribed) personal protection means (working boots, gloves
etc.) at work.
ENGINE START
5. Don’t start the engine by driving tractor
downhill.
6. Starting tractor by means of towing
with another tractor or vehicle is allowed
when the pull bar is used only.
1. Start the tractor from
driver’s seat only with shifting lever in neutral position.
Life hazard at starting by
starter connector short circuit.
2. The key must be at the key switch in
position "I".
3. When preheating engine by electrical
heater, plug the heater first and connect
the cable into electricity after. After preheating disconnect the cable from electricity first.
WARNING: Electrical shock hazard
OPERATION
10. Hoses of hydrostatic steering, brakes
and fuel system must be checked and
replaced in case of any damage indication.
11. The damage indication is for example: surface cracks on hose, loosening
of hose fittings (verify it by pulling of hose from fitting) and mechanical damage
of hose. Brakes and steering must be
permanently in perfect condition.
12. Brake pedals must be latched at
transportation with trailers and implements on the road.
13. Driving downhill without shifted gear
is forbidden!
14. Pay special attention when driving on
hilly, muddy, sandy, icy and uneven terrain.
15. Don’t exceed the max. specified in-
clination angle 11° for 2WD tractors and
12° for 4WD tractors.
16. Don’t exceed the max. total weight of
trailers mentioned on the tractor serial
number plate or the rear fender label.
17. Don’t use the diff-lock when driving
into the turning.
18. Never get out or into the driving tractor. It is forbidden.
19. Reduce the travel speed to 15 km/h
when transportation with agricultural implements hitched in front three point
hitch.
20. The front axle load must not be lower
than 18 to 20 % of total tractor weight
when transportation with agricultural implements hitched in rear three point
hitch.
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SAFETY INSTRUCTIONS FOR USERS
21. Reduced gears 1R, 2R,3R must not
be used in case that tractors Z 6321, Z
6341, Z 7321, Z 7341 are implemented
with machines and implements having a
big resistance when engine speed is
dropping and the tendency of engine is
to be stopped.
22. Reduced gears 1R, 2R must not be
used in case that tractors Z 4321, Z
4341, Z 5321, Z 5341 are implemented
with such machines.
TRANSPORTATION OF PERSONS,
OPERATION
23. Number of persons transported by
tractor must not exceed number
mentioned in tractor technical license.
24. Persons, unauthorized to work with
attached implement, must not stand
between tractor and hitched implement
(machine).
25. Make sure neither any person nor
any obstacle allows driving before
starting tractor move.
26. Max. allowed travel speed of tractor
and trailer equipped with air trailer
brakes is 30kmph. Only tractor models Z
4341, Z 5341, Z 6341, Z 7341 equipped
with braked front driving axle can travel
by max. allowed speed (tractor and
trailer) 40 kmph.
TRACTOR RELEASE, PUSHING
27. Use a pull bar or a rope for releasing
of immobilized tractor. Never use chains.
It is life dangerous to stand near the
rope when releasing the tractor.
28. Front hook assembled on front tractor
frame serves for pulling of the tractor
alone only, i.e. without trailer or another
implement.
29. Never use free wooden blocks,
planks or bars put between tractor and
pushed subject when pushing other vehicles (trailers, wagons etc.).
LEAVING TRACTOR
30. Do not park the tractor with attached
implement in lifted position.
31. Don’t forget to brake the tractor with
parking brake (shift the gear) remove the
key from key switch and lock the cab
before leaving tractor.
32. Shift the reversor lever into forward
position at tractor equipped with reversor
gear.
33. Brake the tractor with parking brake
before leaving tractor with running engine.
AT STOPPED ENGINE ONLY
34. All activities like refueling, cleaning,
lubrication, and tractor or attached
implement adjustment can be done at
stopped engine and stopped moving
tractor parts only, except of brake,
hydraulics and charging function
inspection.
35. Stop the engine before removing
bonnet side shields. The engine can run
in closed room and house only when the
perfect ventilation works. Exhaust gases
are health dangerous.
FIRE PREVENTIVE RULES
36. Refuel the tractor after finishing work
and at stopped engine.
37. Don’t refuel the fuel tank up to the top
in summer season. Wipe the fuel
immediately when spilled.
38. Don’t refuel the tractor nearby the
open flame, don’t smoke.
39. Don’t smoke and don’t use the open
flame when inspecting the battery electrolyte level.
40. Keep properly the fire prevention regulations in areas with increased fire hazard (hay-lofts, straw-stocks etc.).
41. If the tractor is equipped with a fire
extinguisher keep it ready for use.
HEALTH AND ENVIRONMENT PROTECTION
42. Tractors are not equipped with spe-
cial cab air ventilation filters. That’s why
tractors are not intended for work with
aerosols and other substances harmful
to health. Kerosene, diesel fuel, mineral
oils and other products from crude oil
used for operation and maintenance of
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SAFETY INSTRUCTIONS FOR USERS
tractor may cause an injury in case of
direct contact with skin and it can irritate
mocous membranes, eyes, digestive or
respiratory organs. Some of them can
cause poisoning when swallowed.
43. Persons working with crude oil
products must properly keep safety and
hygienic regulations, they must use the
suitable protectors and work in properly
ventilated areas.
WORKING WITH CRUDE OIL PRODUCTS
44. Wash properly your hands with mild
detergent and protect them with suitable
skin ointment or cream after finishing
work or before eating.
45. Remove oil drops from quickcouplers
(from male and female) by textile material after disconnecting or connecting
hydraulic circuit.
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PREVENTIVE DAILY SERVICE
Do this service every day or at least every 8 to 10 hours.
A 8
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PREVENTIVE DAILY SERVICE
A 9 A 10 A 11
FUEL SYSTEM LEAKAGE
Inspect the fuel system for leakage including the fuel tank. Repair immediately
any leaks.
ENGINE OIL LEVEL
Check the engine oil level after unscrewing and removing of oil dipstick. Inspect the lubrication system for leakage.
Maintain the oil level between dipstick
marks.
COOLING SYSTEM
Inspect the engine cooling system for
leaks. Check the coolant level. Add the
coolant to correct level.
Release the filler cup after
coolant temperature cooling
down. Avoid scalding!
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PREVENTIVE DAILY SERVICE
A 12 A 13 a 14
SERVICE BRAKES
Check the brake fluid level in the brake
fluid expansion reservoir. Inspect the
brake and clutch circuit for leaks if loss
of brake fluid level.
AIR BRAKES
Inspect the air brake system leak and
tractor break efficiency with trailer (see
„inspection for air brake leak“).
STEERING
Check the oil level in the hydrostatic
steering oil tank by dipstick. Inspect
status of hydrostatic steering circuit
hoses for damage and oil leak. Check
and Retorque bolts and nuts of steering
tie-rods and arms.
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PREVENTIVE DAILY SERVICE
A 15 A 16 A 17
TIRES AND WHEELS
Check the inflation air pressure of front
and rear tires. Inflate them up to the recommended pressure according to operating conditions.
Check bolt and nut tightening at
front and rear wheels
AIR CLEANER
Air cleaner is equipped with clogging indicator located on the suction pipe. The
indicator is visible after side shield removal. If the air filter clogging, clean the
cleaner and fix the correct function of
indicator by the following way: push the
push-button on the indicator body (2a)
you will mechanically release the indicator lock of read field indicating clogging.
Indicator is again working (2b).
CAB FILTRATION
Check and eventually clean cab filters
located under the roof in front part.
Filters are accessible after removing of
grills.
Filter exchange interval depends upon
dustiness of working condition. Partial
regeneration of filters can be done by
shaking-out or blowing by press air.
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PREVENTIVE DAILY SERVICE
A 18 A 18a A 19
HITCHES
Check the status of hitches and attachments including the trailer.
AFTER OPERATION WITH FRONT IMPLEMENTS
Clean the front part of radiator by the
press air and inspect the front three
point hitch hydraulic circuit for leaks.
SHORT FUNCTIONAL TEST
Check if the lubrication indicator light is
“off“ after starting engine. Check the
function of charging (charging control
lamp must be “off“). Check the hydraulic
circuit of hydrostatic steering for leaks
and function.
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NOTE
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NOTE
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NOTE
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ACQUAINTANCE WITH TRACTOR
Tractor user must be properly acquainted with recommended operating and
safety rules in advance. It is too late to
do it within operation!
Page
Seat adjustment for driver’s weight (mars svratka) ...................................................21
Longitudinal seat adjustment ....................................................................................21
Vertical seat adjustment............................................................................................21
∗Driver’s seat ............................................................................................................22
Seat adjustment for driver’s weight...........................................................................22
Longitudinal seat adjustment ....................................................................................22
∗Passenger’s seat.....................................................................................................23
Safety cab.................................................................................................................23
Heating control panel ................................................................................................ 24
Control panel on right cab pillar ................................................................................24
Front and rear wiper switch.......................................................................................24
Ventilation outlets......................................................................................................25
Front wind shield defrosting ......................................................................................25
Washer nozzle ..........................................................................................................26
Washer reservoir.......................................................................................................26
Outside door opening................................................................................................26
Cab doors..................................................................................................................27
Rear window..............................................................................................................27
Opening for implementation purposes ......................................................................27
Fuel tank ...................................................................................................................28
Draining opening.......................................................................................................28
Average fuel consumption in litters per hour at Zetor tractor ....................................28
Indicator lights...........................................................................................................30
Key switch.................................................................................................................31
Key in "0" position .....................................................................................................31
Key in "I" position ......................................................................................................31
Key in řIIř position .....................................................................................................32
Reserve key position.................................................................................................32
Low beam headlight switch (grill - cab) řAř ...............................................................33
Hazard light switch ř Bř ..............................................................................................33
Turn signal, headlight and horn toggle switch ...........................................................34
Throttle control lever .................................................................................................34
Pedals and levers......................................................................................................34
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ACQUAINTANCE WITH TRACTOR
Page
Gear shifting lever.....................................................................................................35
Road speed and reduced speed shifting lever..........................................................35
Tractors with travel speed 40 kmph .......................................................................... 35
Pto selection control lever (a) - black........................................................................38
∗PTO speed control lever 540 or 1000 rpm (b) - yellow............................................38
∗Front wheel drive disengagement ........................................................................... 39
∗Reversor shifting lever ............................................................................................ 39
Compressor engagement ......................................................................................... 40
Parking brake lever, pto shaft control lever and ∗ pick up hitch control lever ...........40
Differential lock ......................................................................................................... 40
∗Front pto clutch valve control lever ......................................................................... 41
∗Hi-Lo - toque multiplier............................................................................................ 42
Hi-Lo - function indication ......................................................................................... 42
Safety rules when working with Hi-Lo .......................................................................42
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DRIVER’S SEAT
A 20 A 21 A 22
SEAT ADJUSTMENT FOR DRIVER’S
WEIGHT (MARS SVRATKA)
The suspended seat is adjustable for
driver’s weight from 50 up to 120 kg.
Adjustment is done by turning of square
knob. Weight indicator is located in the
slot of rear seat cover.
Spring stroke is 120 mm.
Do not adjust the seat on the go.
Danger of accident!
LONGITUDINAL SEAT ADJUSTMENT
The seat can be longitudinally adjusted
within range ° 75 mm (11 positions) after
unlocking of left hand side lever.
VERTICAL SEAT ADJUSTMENT
Vertical seat adjustment is done by the
right hand side lever by moving the lever
from middle position to two marginal positions within range ° 30 mm.
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∗DRIVER’S SEAT - GRAMMER
A 23 A 23a A 23b
∗DRIVER’S SEAT
Tractor can be equipped with Grammer
or KAB seat as an option.
SEAT ADJUSTMENT FOR DRIVER’S
WEIGHT
Adjust the seat by a plastic knob located
on the front part of seat support
LONGITUDINAL SEAT ADJUSTMENT
Adjust the seat longitudinal position by a
lever located on the left hand side of the
seat
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DRIVER’S AND PASSENGER’S SEAT - SAFETY CAB
A 24 A 25
∗PASSENGER’S SEAT
Passenger’s seat is tiltable and is located on the left cab fender.
Passenger’s seat can be tilted up for the
better access to the driver’s seat.
SAFETY CAB
Rear tiltable window and cab doors are
equipped with inner handles and gas
struts. Front window is equipped with the
sunshade. The internal cab space is
noise protected. The roof is optionally
equipped with a tiltable cover.
Use steps for entering and leaving the cab. Use handles for your
safety.
∗Colored (tinted) glasses can be ordered
as an option.
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SAFETY CAB
A 26 A 27 A 28
HEATING CONTROL PANEL
1. Four-position blower switch
- vertical position - blower is řoffř
- first right position - blower low speed
- second right position - blower middle
speed
- third right position - blower high speed
2. Shut off heater control.
3. Heater valve control lever.
- right lever position - heating řonř
- left lever position - heating řoffř
∗Radio can be assembled into the space
under heating system control panel
CONTROL PANEL ON RIGHT CAB
PILLAR
4. Cab illumination light with switch
5. Two speed front windshield wiper and
washer switch.
6. Rear window wiper switch.
FRONT AND REAR WIPER SWITCH
Front and rear wiper switch is located on
the right hand side cab pillar.
0. vertical position - wiper is řoffř
1. right position - low wiper speed
2. right position - high wiper speed
- front windshield washer is řonř after
switch pressing.
Max. time of uninterrupted washer pump
work is 10 sec.
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SAFETY CAB
A 29 A 30
VENTILATION OUTLETS
7. Position adjustable outlets of ventilation and heating.
FRONT WIND SHIELD DEFROSTING
For fast defrosting of front wind shield
the řAř middle outlets needs to be
directed to the front wind shield with 45„
angle from vertical position the "B" side
outlets directed towards front corners of
cab.
After front wind shield defrosting the side
outlets can be directed towards door
glasses for their step by step defrosting.
After defrosting the outlets should be
adjusted that way not to blow the air
directly to the driver but to driver’s legs.
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FRONT WIND SHIELD WASHER - CAB DOORS AND WINDOWS
A 31 A 32 A 33
WASHER NOZZLE
The washer nozzle is located in the
upper part of hood and is adjustable by
needle or steel wire of 0,8 mm diameter.
The washer sprays after switch pressing.
WASHER RESERVOIR
The washer reservoir is located in the
cab, on the right hand side of rear wall
behind the driver’s seat. The washer
reservoir capacity is 2,5 litters. Antifreeze mixture must be used in winter
season for filling of washer reservoir.
OUTSIDE DOOR OPENING
Doors can be locked from outside. Depress the lock button after unlocking and
use handle for door opening.
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CAB DOORS AND WINDOWS
A 34 A 35 A 35a
CAB DOORS
1. Lever for door opening from inside
2. Lever for door locking from inside
REAR WINDOW
Rear window is equipped with handle
and is kept in the open position by gas
struts.
We recommend to latch the
window in closed position when
driving on uneven terrain - danger of window cracking. Before
starting work with machines implemented in the rear three point
hitch be sure that the interference between hitched implement
and opened rear window is
avoided at the maximal lifting of
the rear three point hitch. In case
of interference we recommend to
work with closed window.
OPENING FOR IMPLEMENTATION
PURPOSES
The bottom window is rigid and is
equipped with opening for connection of
controls with attached implements.
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FUEL TANK
A 36 A 37 A 37a
FUEL TANK
Plastic fuel tank with capacity 120 litters
is assembled at all models of tractors as
a standard equipment.
Do not step on the fuel tank.
DRAINING OPENING
Opening for draining of impurities is
located in the bottom part of fuel tank.
AVERAGE FUEL CONSUMPTION IN
LITTERS PER HOUR AT ZETOR
TRACTOR
Tractor Model Engine Load
100% 80% 50%
Z 3321, 3341 10,2 8,40 6,40
Z 4321, 4341 10,78 8,62 5,39
Z 5321, 5341 11,52 9,21 5,76
Z 6321, 6341 12,50 10,00 6,25
Z 7321, 7341 14,04 11,23 7,02
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DASHBOARD
A 38 A 38a
1. Free position.
2. Front wheel drive control switch with
indicator light.
3. Working light switch with indicator
light.
4. Fog light switch with indicator light.
5. Position, high and low beam headlight
switch with indicator light.
6. Warning light switch with indicator
light.
7. Low beam roof-light switch with indicator light.
8. Differential lock control switch with indicator light.
9. Toggle switch - turn signal, lights,
horn (high and low beam headlight
switch, acoustic horn).
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