Zetor 3321 SUPER, 3341 SUPER, 4321 SUPER, 4341 SUPER, 5321 SUPER Operator's Manual

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

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

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

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

CAB TRACTORS

ZETOR 3321 - 33 kW
ZETOR 4321 - 44 kW
ZETOR 5321 - 47 kW
ZETOR 6321 - 51 kW
ZETOR 7321 - 58 kW

A 1

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

CAB TRACTORS

ZETOR 3341 - 33 kW
ZETOR 4341 - 44 kW
ZETOR 5341 - 47 kW
ZETOR 6341 - 51 kW
ZETOR 7341 - 58 kW

A 2

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

LOCATION OF SERIAL NUMBERS

M97-vyrcisla

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

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

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

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

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

PREVENTIVE DAILY SERVICE

Do this service every day or at least every 8 to 10 hours.

A 8

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

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!

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

NOTE

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

NOTE

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

NOTE

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz

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

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

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

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

∗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

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

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.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

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

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

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).

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

INDICATOR LIGHTS

A 39

INDICATOR LIGHTS

1. High beam light (blue). It lights if high
beam head lights are řonř. Turn sig­nal lever position-downwards in direc­tion of steering wheel axis.

2. Turn signal indicator light (green).

3. Turn signal indicator light (green) ­first trailer.

4. Turn signal indicator light (green) ­second trailer.

5. Charging indicator light (red). This is
řonř after charging failure.

6. Parking hand brake (red). It is ř onř if
the hand brake applied.

7. Indicator light of min. air pressure in
braking system (red): it lights if the air
pressure for trailer air brakes drops
under a critical margin i.e. 420 kPa.

8. Lubrication indicator light (red). It is
řonř if the engine oil pressure drops
below 120 to 60 kPa.

9. Air cleaner clogging indicator light is
řonř after air cleaner clogging
(yellow), (not assembled).

10. Indicator light for warning lights

11. Critical coolant temperature indicator
light is řonř after of temperature ex­ceeding of temperature approx.
100„C (not assembled).

12. Indicator for torque mulplier (green ­ON).

13. Indicator for torque mulplier (green ­ON).

14. Indicator light in hydrostatic steering
circuit fault.

15. Min. fuel level indicator light (orange).
It lights if 1/6 to 1/10 fuel tank capa­city stays at the fuel tank.

16. Tachometer with engine hour coun­ter.

17. Front wheel drive indicator light (red).

18. Fuel gauge.

19. Free.

20. Glowing indicator light (yellow), ( not
assembled).

21. Air pressure gauge.

22. Thermometer of coolant.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

INDICATOR LIGHTS - KEY SWITCH

A 39a A 40 A 41

KEY SWITCH

Key switch is located on the front part of
steering wheel support under the dash­board

KEY IN "0" POSITION

All electrical appliances controlled by the
key switch are disconnected. The key
can be removed.

KEY IN "I" POSITION

All electrical appliances controlled by the
key switch are connected except of
starter motor. The key is in this position
when engine running.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

INDICATOR LIGHTS - KEY SWITCH

A 42 A 43

KEY IN “II“ POSITION

Starter motor is connected in this posi­tion. All electrical appliances controlled
by the key switch are connected except
of wipers, washer, blower of cab and AC.
The key is turned automatically to řIř
position after starting.

RESERVE KEY POSITION

The key is in reserve - not used position
(some electrical systems are on) by
turning the key into left from ř0ř position
(.ř0ř position is necessary for inserting
the key) The key can not be removed in
this position, similarly as in řIř and řIIř
position.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

SWITCHES

A 44

LOW BEAM HEADLIGHT SWITCH
(GRILL - CAB) “A“

"0" řOffř.
"I" Low or high beam headlights in the

grill are řonř.

"II" Low beam headlights in the roof are

řonř (these lights are used only if the
front grill headlights are covered by
attached implement hitched in front
three point hitch).

HAZARD LIGHT SWITCH “B“

"0" Hazard lights řoffř.
"I" Hazard lights řonř.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

SWITCHES, PEDALS AND LEVERS CONTROLLED BY DRIVER

A 45 A 46 A 47

TURN SIGNAL, HEADLIGHT AND
HORN TOGGLE SWITCH

(lever underneath the steering wheel)
a - Turn signal - right.
b - Turn signal - left.
c - Acoustic horn.
High beam light - move the lever down­wards in direction of steering wheel axis.

THROTTLE CONTROL LEVER

A - Max. throttle.
B - Low idle.
C - Stop.

PEDALS AND LEVERS

1. Travel clutch pedal.

2. Foot operated service brake pedals
connected by latch.

3. Throttle pedal.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

PEDALS AND LEVERS CONTROLLED BY DRIVER

A 48 A 49 A 49a

GEAR SHIFTING LEVER

Main shifting lever.
The shifting lever grip is red.

ROAD SPEED AND REDUCED SPEED
SHIFTING LEVER

Reduction gear shifting lever .
hare - road speeds
N - neutral
turtle - reduced speeds
The shifting lever grip is black.

TRACTORS WITH TRAVEL SPEED 40
kmph

All models of four cylinder tractors
equipped with Carraro front driving axle
and brakes in front final drive can optio­nally have 40 kmph.
Front driving axle brakes are controlled
by air-liquid amplifier depending upon
pressure in the rear brake circuit of
tractor. Hydraulic circuit of front brakes is
filled with brake fluid.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

SHIFTING PATTERN

A 50

Shifting pattern decal is fixed on the right
hand side of front cab wind shield.

1. Shifting pattern decal for transmission
with reduction, rear PTO shaft - 540
RPM and ground PTO speed.

2. Shifting pattern decal for transmission
with reduction, rear PTO shaft - 540
or 1000 RPM and ground PTO speed

3. Shifting pattern decal for reversible
transmission with reduction, rear PTO
shaft - 540 RPM and ground PTO
speed.

4. Shifting pattern decal for reversible
transmission with reduction, front
PTO- 1000 RPM rear PTO shaft - 540
RPM and ground PTO speed.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

SHIFTING PATTERN

A 51

5. Shifting pattern decal for transmission
with front PTO - 1000 RPM, reduction,
rear PTO shaft - 540 or 1000 RPM
and ground PTO speed.

6. Shifting pattern decal for reversible
transmission with front PTO - 1000
RPM, reduction, rear PTO shaft - 540
RPM and ground PTO speed.

Positions of reverse lever
F - forward
R - reverse

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

PEDALS AND LEVERS CONTROLLED BY DRIVER

A 52 A 52a

PTO SELECTION CONTROL LEVER
(A) – BLACK

a - PTO ground speed - PTO is driven

by transmission - PTO speed de-

pends upon the shifted gear speed.
N - neutral position
b - PTO Independent speed - PTO shaft

drive with 540 RPM, optionally 540 /

1000 RPM.
At tractor equipped with reversor when
working with PTO and with stopped trac­tor the reversor shifting lever must be in
forward position (F).

∗PTO SPEED CONTROL LEVER 540
OR 1000 RPM (B) - YELLOW

c - 540 - RPM
N - neutral
d - 1000 - RPM
Tractor is equipped with the six spline
PTO shaft end for 540 RPM as a
standard. Tractor can be equipped with
the twenty-one spline PTO shaft end for
1000 RPM as an option.

PTO speed shifting either 540 or
1000 RPM is possible regardless
to assembled PTO shaft end - six
or twenty-one splines.

Both levers can be shifted at stopped
tractor only.
PTO speed and spline shaft end type
must be chosen depending upon pre­scribed speed of implemented machine.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

PEDALS AND LEVERS CONTROLLED BY DRIVER

a65 A 54

∗FRONT WHEEL DRIVE DISENGAGE­MENT

Front wheel drive is disengaged by
means of the switch located on the dash.
Engaged front wheel drive is indicated
by indicator light that is a part of the
switch.

Driving with engaged front wheel
drive on the road is prohibited!
Engaged front wheel drive use
for fields working only!

∗REVERSOR SHIFTING LEVER

1. Forward drive - lever in forward posi­tion (F).

2. Backward drive - lever in reverse po­sition (R).

Altogether 10 forward speeds and 10 re­verse speeds are reached in combina­tion with reduction range. The main
shifting lever has 5 positions without re­verse gear. PTO shaft speed 1000 RPM
is excluded at tractor with reversor.

Reversor lever does not have a
neutral position. That’s why
neutral must be shifted by the
main shifting lever for stopping
tractor.

Working with PTO at stopped tractor the
reversor shifting lever must be in forward
position (F).

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

PEDALS AND LEVERS CONTROLLED BY DRIVER

A 55 A 56 A 57

COMPRESSOR ENGAGEMENT

1. Safety pin for compressor engage­ment.

2. Lever for compressor engagement.

The compressor must be ever
engaged when driving the tractor
with trailer or implement that is
braked with air trailer brakes.

PARKING BRAKE LEVER, PTO SHAFT
CONTROL LEVER AND ∗ PICK UP
HITCH CONTROL LEVER

1. Control lever of PTO shaft clutch

2. Parking brake lever

3. Pick up hitch control lever

DIFFERENTIAL LOCK

Rear axle differential lock is controlled
by switch located on the dash board. In­dicator light is řonř if the differential lock
is engaged.
Differential lock is disengaged by break
pedal depressing.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

PEDALS AND LEVERS CONTROLLED BY DRIVER

A 58

∗FRONT PTO CLUTCH VALVE CONT­ROL LEVER

1. Front PTO clutch valve control lever.

a - engaged
b - STOP
Clutch is engaged when the air press is
minimally. 500 kPa (indicated on pressu­re gauge). The valve insures automatic
disengaging of PTO shaft if the air
presssure drops under 410 kPa ° 60
kPa.

It’s life dangerous to do any re-
pairs or cleaning of front attached
implements driven by front PTO
shaft if the lever is not in STOP
position.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

PEDALS AND LEVERS CONTROLLED BY DRIVER

A 58a A 58b A 58c

∗ HI-LO - TORQUE MULTIPLIER

Tractors can be optionally equipped
with. torque multiplier. Torque multiplier
is electro-pneumatically controlled by
means of foot pedal located on the right
hand side of clutch pedal. The tractive
force of tractor is increased after
depression of Hi-Lo pedal. Number of
transmission gears is twice higher (20/4)
at tractors equipped with Hi-Lo.
Hi-Lo (torque multiplier) is automatically
disengaged after depressing of clutch
pedal, brake pedals or after applying of
PTO control lever (i.e. at disengaged
PTO shaft).

HI-LO FUNCTION INDICATION

The indicator light on dashboard lights
when the Hi-Lo is actuated.

SAFETY RULES WHEN WORKING
WITH HI-LO

For the reason of safety it is
forbidden to press the travel
clutch pedal and Hi-Lo pedal
simultaneously and to use the Hi­Lo when going downhill.

PDF byl vytvoren zkusebnı verzı FinePrint pdfFactory http://www.fineprint.cz

OPERATION

Be familiar with shifting
pattern and test all posi­tions of shifting lever at
stopped engine before
driving new tractor.
Be sure that the technical
status of tractor corres­ponds to the safety traffic
condition before driving.

Page

Engine starting fail.....................................................................................................44

∗Coolant heater.........................................................................................................45

Engine starting with coolant heater ...........................................................................45

Turbocharged engine (at tractors Z 7321 and Z 7341 only)......................................46

Shifting from higher to lower gear .............................................................................48

Driving downhill.........................................................................................................48

Driving uphill..............................................................................................................49

Gear shifting of reduced speeds ...............................................................................49

Tractor stopping - parking brake ...............................................................................49

Turbocharged engine stopping .................................................................................50

Leaving tractor ..........................................................................................................50

Foot operated disk brakes.........................................................................................51

∗Single and double hose air trailer brakes ................................................................51

∗Single and double hose air brakes ..........................................................................52

Warning device .........................................................................................................52

Hydraulic trailer brakes .............................................................................................53

In time of running in - first 100 hours.........................................................................54

First 10 hours ............................................................................................................54

10 hours after............................................................................................................54

70 hours after............................................................................................................55

70 hours after............................................................................................................55

100 hours after..........................................................................................................55

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

ENGINE STARTING - TRACTOR IS EQUIPPED WITH STARTING SAFETY INTERLOCK

SYSTEM

A 59

Be sure the tractor is braked by
parking brake and shifting lever
is in neutral position before
starting engine.

Prime the fuel system by 5 to 10 strokes
of hand fuel transfer pump and screw
properly the knob into the pump body.

A 60

1. Insert the key into the key switch ("0"
position).

2. Depress the clutch pedal.

3. Move the shifting lever, shifted in
neutral, towards you - shifting safety
interlock system will be actuated by
this way.

4. Turn the key through "I" position into
"II" position (start). Crank the engine
3 - 5 second, than release the key
and turn it into "0" position. Engine
cranking can be eliminated at higher
ambient temperature.

5. Set the max. throttle and again move
the shifting lever, shifted in neutral,
towards you - starting safety system
will be switched on.

6. Turn the key through "I" position into
"II" position (start). Release the key
immediately after engine starting and
release also the shifting lever. Don´t
start engine longer than 15 second.

7. After starting engine, step by step
reduce the throttle. Avoid running en­gine at high idle.

ENGINE STARTING FAIL

Repeat starting after 30 seconds. Max. 6
starting cycles are allowed (15 seconds
starting and 30 second brake is one
cycle). Farther starting engine is allowed
after cooling of starter motor to the am­bient temperature.

Never help to the stopping en­gine by the starter motor. You will
avoid starter damage.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

ENGINE STARTING

A 60a A 61

Disconnect the ground battery
pole, shift all levers into neutral
position, including PTO engage­ment, when any manipulation
with starter or its repair. Starting
engine by short circuit of starter
connectors is forbidden. The ba­sic rule is that the tractor is star­ted from driver’s seat only.
Starter motor connectors are pro­tected by a cover.

∗COOLANT HEATER

Coolant heater is assembled into engine
block as an option. Its output is 1000 W
at voltage 220 V of alternating electrical
current. Heater is used at ambient tem­perature below -10“ C.

ENGINE STARTING WITH COOLANT
HEATER

The electrical installation and its protec­tion against electrical shock hazard must
be done according to the proper regula­tions. Inspect the electrical circuit before
use, plug the heater first and the cable
into 220 V electricity after.

After heating unplug the electri­city first and the heater after.

ELECTRICAL SHOCK HAZARD!

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

IMMEDIATELY AFTER STARTING

A 61a A 62

TURBOCHARGED ENGINE (at tractors
Z 7321 and Z 7341 only)

Crank the engine for 3 to 5 seconds with
throttle control lever in position C ­STOP. You will assure lubrication of
turbocharger and prolongation of its life.

Set engine speed for 800 to 1000
RPM after starting and let the
engine idle for 3 minutes without
load.

In this time check for proper lubrication,
charging (indicator lights must be °off°)
and other functions assuring correct en­gine operation.

Engine idle time without load must be
kept especially in winter season.
Continue with warming up the engine
while driving. Warming up the engine by
long idle run or fast increase of speed is
dangerous for the engine.
Do not exceed engine speed above
2000 RPM until the coolant temperature
reaches 45“C.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

STARTING MOVE

A 63

Depress the clutch pedal, select the road
or reduced range speed. Start the en­gine and set the engine speed for 750 to
800 RPM. Shift the proper gear speed
suitable for starting move and slightly
increase the engine speed. Prepare the
parking brake for releasing. Release the
clutch pedal up to point of the starting
move and simultaneously with engine
speed increasing, continue with smooth
clutch releasing. Fully release the
parking brake.
Start moving smoothly and slowly. Fast
starting move can cause the overload of
transmission, increased fuel consump­tion, excessive tire wear and damage of
the transported load.

Use the 1 st. gear only for starting move
when driving with heavy trailer going up
the hill and in heavy terrain.
Regularly check the operation engine
regime, engine speed, lubrication,
coolant temperature, air press, battery
charging and fuel level.
Regularly check tightening of the trans­ported load if the trailer or other imple­ment is hitched to the tractor.
Don´t use the differential lock when driv-
ing on the dry road or if taking the tu­rning.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

GEAR SHIFTING

A 64 A 65 A 66

SHIFTING FROM HIGHER TO LOWER
GEAR

Double clutching is necessary at trans­missions with 2nd, 3rd, 4th and 5th syn­chronized speed when shifting from the
2nd to the 1st speed. Double clutching is
also recommended when shifting from
the other speeds.

DRIVING DOWNHILL

Driving downhill without the
shifted gear is forbidden. If
driving down the long hill, shift so
lower gear the sharper one the
hill is. If possible shift the lower
gear before driving downhill.

Remember:
The gear you use reliably for driving
uphill is safely suitable for driving down­hill.

Driving down the sharp hill with trailer
equipped with air or hydraulic trailer bra­kes the foot operated brakes must be
applied already from beginning of decli­nation!

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

GEAR SHIFTING

A 66a A 67 A 68

DRIVING UPHILL

Shift in time when shifting from
the higher speed to the lower
one when going uphill, to avoid
dropping engine speed below
800 RPM and stopping the engi­ne by overload.

GEAR SHIFTING OF REDUCED
SPEEDS

Shifting lever of road-reduced range can
be shifted at stopped tractor only. Gear
shifting of reduced speeds is the same
as shifting of road speeds. With regard
to the low travel speed of the tractor at
shifting, the tractor must almost always
be moved from the stop.

TRACTOR STOPPING - PARKING
BRAKE

Stop gently and slowly the tractor at nor­mal conditions. Shortly before stopping
depress the clutch pedal and move the
shifting lever into neutral. Set the parking
brake and so protect the tractor against
accidental movement at each tractor
stopping especially when engine runn­ing. Parking brake setting is indicated by
indicator lights located on the dash.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

TRACTOR STOPPING

A 69 A 70

TURBOCHARGED ENGINE STOPPING

At the tractor with turbocharger the en­gine must cool after work with fully
loaded engine. That´s why first reduce
the engine speed to 800 - 1000 RPM be­fore stopping engine and let it run
without load approximately for 5 minutes.
Stop the engine by moving the throttle
control lever into STOP position. The sa­me is recommended for naturally aspi­rated engines too.

LEAVING TRACTOR

Do not forget to remove the key from the
key switch and lock the cab at cab
tractors before leaving tractor. (The key
can not be removed when at left, I or II
position).
Tractor must be properly assured
against accidental move, it must be
braked, with engine °off ° and first gear
shifted. Wheels must be locked by
blocks when standing tractor on the hill.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

SERVICE BRAKES - AIR TRAILER BRAKES

A 71 A 72

FOOT OPERATED DISK BRAKES

Disc brakes are of wet type, hydraulically
actuated, double pedal with automatic
compensator integrated in the main
brake cylinders.

Both brake pedals must be
latched together when driving on
the road.
Use unlatched pedals for braking
right or left wheel separately
when working in terrain and fields
only.

∗SINGLE AND DOUBLE HOSE AIR
TRAILER BRAKES

Control of air trailer brake is derived from
the foot operated disc brakes and this
works at latched pedals only. The air
brake operation is synchronized with
braking tractor including the brake effect.
Working pressure is set by a pressure
valve (regulator) adjusted to 730 „ 20
kPa. If the pressure drops under 550 ­40 kPa the priority valve disconnects
pneumatic circuits of secondary appli­ances (front PTO control, PTO clutch
control, torque multiplier etc.).

Disconnecting of secondary appliances
is not signalized by any indicator lamp.

Pedals of foot operated brake
must be connected and latched
when driving tractor with
attached trailer.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

AIR TRAILER BRAKES

A 73 A 74

∗SINGLE AND DOUBLE HOSE AIR
BRAKES

It is recommended to connect air
brake couplings to the tractor at
tractor braked by parking brake.

Connector couplings must be covered by
a cap if the trailer is not hitched.

Connector couplings.
A - coupling of single hose air brake

system

B - coupling of double hose air brake

system ( red - filling circuit)

C - coupling of double hose air brake

system ( yellow - braking circuit)

WARNING DEVICE

Dropping of air pressure under critical
margin 450 ± 30 kPa is indicated by red
indicator light located on the dashboard.

Tractor with a braked trailer can
not continue in driving when air
pressure drops under the critical
margin and until the pressure is
increased.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

HYDRAULIC TRAILER BRAKES

A 74a

HYDRAULIC TRAILER BRAKES

Hydraulic trailer brake control is synchronized with braking the tractor including the
braking effect. Working pressure is activated by oil pressure from hydraulic pump.
The hydraulic valve BOSCH (1) is used in circuit of hydraulic pump (disengageable
pump). The pressure in the brake coupling must be 12 - 15 MPa at maximal press on
the brake pedal. Trailer brake valve prioritizes the brake function to hydraulic control.

Brake pedals must be connected and secured by latch when driving the
tractor with attached trailer.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

NEW TRACTOR RUNNING IN

A 75 A 76

IN TIME OF RUNNING IN - FIRST 100
HOURS

Within the first 100 operation hours:

- load the engine normally

- avoid the maximal engine load at
operation

- avoid the long operation at low idle

- frequently inspect the engine oil level
(the increased oil consumption is nor­mal in this time)

- check the hardware connections espe­cially connections of highly stressed
parts of the tractor

- remove immediately all found prob­lems. You will avoid subsequently cre­ated damage eventually even traffic
hazard

FIRST 10 HOURS

- do running in at transportation only

- retorque front and rear wheel nuts by
prescribed torque

70 HOURS AFTER

Change the hydraulic oil filter element.
Add the oil into transmission, if neces­sary check the oil level, to be in area of
flattened part of oil dipstick.

Change the hydraulic oil filter ele­ment when cold oil - danger of
your burning, see the chapter
!HYDRAULIC OIL FILTRATION!
in this manual.

Use the following intervals for exchange
of hydraulic oil cleaning cartridge:

1. 70 hours

2. 200 hours

3. and each 600 hours

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

NEW TRACTOR RUNNING IN

A 77 A 78 A 79

70 HOURS AFTER

Drain the hot engine oil and exchange
the full-flow engine oil filter. Fill in the
engine with new oil to the prescribed
level - upper mark of oil dipstick ( inspect
after engine cranking and oil level sta­bilizing).

70 HOURS AFTER

Retorque the cylinder head nuts (re­commended torque is 167 to 177 Nm at
the cold engine) and check for valve
clearance (0,25 „ 0,05 mm at the cold
engine).

100 HOURS AFTER

You can work without any restrictions
with the tractor after running in.
The operating engine mode - speed:

- recommended operating engine speed
1400 to 2300 RPM.

- low idle speed 700 to 650 RPM.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

NOTE

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

TRANSPORTATION

Be sure that the tractor technical
status corresponds to the safe
traffic requirements before driv­ing.

Verify hitching of trailer and fixing of
transported load if the attached trailer or
agricultural implement. Never leave the
tractor in move for attaching trailer your­self. Keep also safety of your assistant.

Page

Front hook.................................................................................................................58

∗ Trailer hitch.............................................................................................................58

∗ Mechanical mouth of trailer hitch............................................................................58

∗ Automatic mouth of trailer hitch..............................................................................59

∗ Swinging drawbar...................................................................................................59

∗ Swinging drawbar...................................................................................................59

∗ Pick up hitch...........................................................................................................60

Exchange of hook for draw bar .................................................................................60

∗ Swinging drawbar for trailers..................................................................................60

Attaching trailer .........................................................................................................61

Disattaching trailer ....................................................................................................61

∗ Draw bar.................................................................................................................61

Trailer implementation...............................................................................................62

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

TRANSPORTATION

A 80 A 81 A 82

FRONT HOOK

Front hook is used only for pulling tractor
without any attached trailer or imple­ments only.
Use the pull bar or rope when releasing
tractor, never use chains.

∗ TRAILER HITCH

Trailer hitch is used for attaching of four
wheel trailers or light two wheel trailers.
The trailer hitch is height adjustable in 5
positions by 50 mm. Hitch is attached by
means of bolts or pins with cotter pins.
Important: Working with various agricul­tural implement if necessary the trailer
hitch needs to be adjusted, tilted or
eventually removed together with carrier.

∗ MECHANICAL MOUTH OF TRAILER
HITCH

Hitch pin diameter is 30 mm. Maximal
vertical static load is 10 kN.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

TRANSPORTATION

A 83 A 84 A 85

∗AUTOMATIC MOUTH OF TRAILER
HITCH

Hitch mouth enables automatic coupling
trailer to the tractor. For attaching trailer
do the following - pull out the latch (1)
and simultaneously raise the main hitch
pin (3) into its upper position by means
of lever (2). Pin automatically slides into
trailer yoke eye after mouth and yoke
coupling. Be sure the latch is back in
position after coupling trailer. Maximal
allowed vertical static load is 10 kN.

∗ SWINGING DRAWBAR

Swinging drawbar can be set side to si­de in 5 positions. Drawbar is fixed by the
brace in desired position. The drawbar
can be longitudinally set in two positions

- measured from the end of PTO shaft
(350 or 400 mm). Setting is done after
removing of quick lock pin under the
differential housing. Secure again the
drawbar with pin after setting. Drawbar
can be vertically set in 2 positions ( by
turning the drawbar round its axis and by
assembly of drawbar clevis into a
different position).

∗ SWINGING DRAWBAR

The needed free space at work with
cardan shaft is ensured only if the draw­bar clevis is in its lowest position

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

TRANSPORTATION

A 86 A 86a A 86b

∗ PICK UP HITCH

Pick up hitch is intended for coupling of
two wheel trailers with yoke corres­ponding to ISO 5692 (the internal yoke
eye diameter is 50 mm and eye height is
30 mm). Pick up hitch hook is hydrau­lically raised and lowered by means of
length adjustable telescopic links. Ma­ximal vertical static load is 17 kN. Pick
up hitch is capable for pulling of maximal
traction force.

EXCHANGE OF HOOK FOR DRAW
BAR

This hitch device can be equipped with
swinging draw bar that is in the opposite
side of hitch hook.
Swinging draw bar can have three
working positions. Change of hitch hook
for swinging draw bar is carried out by
lowering of hitch hook carrier into posi­tion suitable for removing of pins (a).
Afterwards the hitch hook is removed
from the carrier and inserted into such
position that the swinging draw bar
clevis is in front of carrier.

∗SWINGING DRAWBAR FOR
TRAILERS

Maximal vertical static load is 12 kN.
Swinging draw bar is capable for pulling
of maximal traction force.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

TRANSPORTATION

A 87 A 87a A 88

ATTACHING TRAILER

Trailer is attached by means of the
hydraulic inner circuit lever (A) with se­lected position regulation. The hitch
hook together with trailer yoke eye is
hydraulically raised into position where
the latches lock down over hitch carrier
pins. Hydraulic arms must be subse­quently lowered so that the hook latches
sat into carrier pins - telescopic hitches
must not be stretched.

DISATTACHING TRAILER

Trailer is disattached after slight raising
of hitch by internal circuit lever. Move the
pick up hitch control lever forward with
selected position control. The lever is lo­cated on the left hand side of at driver´s
seat.

∗DRAW BAR

Draw bar is height adjustable by the
hydraulic lifting system within its hole
lifting range. Only agricultural imple­ments loading permanently the drawbar
downwards can be attached into the
drawbar. Maximal vertical static load is 5
kN (stopped tractor).

Disassemble the trailer hitch with
carrier when working with the
draw bar.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

TRANSPORTATION

A 89

TRAILER IMPLEMENTATION

Tractor must be implemented only with
suitable tractor trailer because tractor
service brakes and air brakes of trailer
must match together. Static rear axle
load must not exceed the max. allowed
axle load when implemented with two
wheel trailer.

Type Allowed vertical

static load

Type Allowed vertical

static load

10 kN 8 kN

8 kN 18 kN

6 kN 12 kN

12 kN 5 kN

Maximal weight of implemented braked trailer must not exceed the weight value
mentioned on tractor warning decal and value mentioned in the vehicle technical
license. The maximal vehicle set speed is limited by the max. allowed speed of the
slowest vehicle.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

TRANSPORTATION

Speed Tire G

z dov

2WD tractor 4WD tractor

(km/h) (kg) F (kN) Gp (%) v (km/h) F (kN) Gp (kN)

8, 20, 30
8, 20, 30
8, 20, 30
8, 20, 30
8, 20, 30

16,9-28
16,9-30
16,9-34
18,4-30
18,4-30

4000
4000
4000
4000
4000

18
18
17
16
16

19
19
20
20
20

15
15
15
15
15

18
18
17
17
17

27
27
28
28

28
40
40
40
40
40

16,9-28
16,9-30
16,9-34
18,4-30
18,4-34

3400
3400
3400
3400
3400

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

13
12
12
12
12

32

32

32

30

30

8
20
30
40

13,6-36
13,6-36
13,6-36
13,6-36

4000
3870
3230
2900

18
17
11

-

19
20
25

-

-

15

-

-

18
16
11

8,5

28
29
34
37

- Additional front ballast weights

- under frame

- in front of mask

155

-

155
210

G

z dov

- maximal allowed load at rear axle
F - allowed vertical static load of hitch
G

p

- front axle load (regarding total tractor weight)
v - restricted maximal speed (regarding steeringability)

The table is valid for tractor with pick up hitch only.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

NOTE

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

AGRICULTURAL MACHINE PTO DRIVE

Check the speed compatibility of
both, tractor PTO and machine
driven shaft before attaching
PTO driven machine (540 or
1000 RPM). Different PTO
speeds may cause serious da­mage and accidents .

Page

Safety regulations when working with PTO............................................................... 66

Pto independent and ground speed shifting..............................................................66

∗ PTO shaft - exchangeable PTO shaft ends............................................................67

PTO clutch hand control lever...................................................................................67

PTO clutch mechanical control .................................................................................68

Adjusting process......................................................................................................68

∗ Pneumatic control with mechanical linkage............................................................69

Adjusting process for pneumatic control with mechanical linkage ............................69

Front PTO clutch control valve lever .........................................................................71

Front PTO shaft.........................................................................................................71

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

AGRICULTURAL MACHINE PTO DRIVE

A 90 A 91

SAFETY REGULATIONS WHEN
WORKING WITH PTO

Take care for proper assembly of
all covers and guards. Always re­assemble the PTO shaft guard
after finishing of work. Connect
and disconnect the cardan shaft
only after definitive stopping of
PTO shaft.
Disconnect the PTO drive by the
hand lever - upper position (fig. A

93) before starting the tractor
with attached machine.

Unauthorized persons must not stay
between tractor and attached machine.

WARNING FOR WORK WITH PTO

It is recommended to shift the reverse
control lever into forward position and
main shifting lever into neutral when
working with PTO at stopped tractor
equipped with reversor. It is recommend­ed not to work with engaged fourth and
fifth road speed gear when the reversor
shifting lever is in reverse position R for
backward drive at tractor equipped with
such reversor.

PTO INDEPENDENT AND GROUND
SPEED SHIFTING

a - PTO ground speed ( PTO is driven

by transmission - PTO ground speed
depends upon the shifted gear. )

N - Neutral.
b - Independent PTO speed ( indepen-

dent upon tractor travel speed),
( 540 RPM- standard, 540 and 1000

RPM- option)
PTO speed is shifted at stopped engine.
PTO shifting lever handle is black.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

AGRICULTURAL MACHINE PTO DRIVE

A 92 A 93

∗ PTO SHAFT - EXCHANGEABLE PTO
SHAFT ENDS

The PTO shaft end for 540 RPM has six
splines.
The PTO shaft end for 1000 RPM has
twenty-six splines.
The six spline shaft is assembled in the
factory. PTO guard, plug and the PTO
end fixing screw must be disassembled
when exchanging the PTO shaft end.
Lever grip for shifting of 540 and 1000
RPM is yellow.

PTO CLUTCH HAND CONTROL LE­VER

Upper position - clutch is disengaged
Lower position - clutch is engaged
The application of lever into disengage
position is indicated with indicator light
located on the dashboard.

Connecting and disconnecting of
cardan shaft to and from agrega­ted machine must be always
carried out with shifting lever of
dependent and independent PTO
speed into neutral position (pictu-

re A 91 - position N). In addition,
it is forbiden to carry out any repairs or
cleaning on agregated machines driven
by rear PTO if shifting lever of depen­dent and independent PTO speed is not
into neutral position.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

AGRICULTURAL MACHINE PTO DRIVE

A 93a A 94

PTO CLUTCH MECHANICAL CON­TROL

Mechanical control actuates the PTO
clutch levers through the thrust bearing.
Disengaging mechanism consists of:

1. Lever.

2. Push-pull cable.

3. Adjusting nut.

4. Adjusting screw

5. Pin

6. Push-pull cable bolt

7. Double-arm lever.

8. Pull link.

9. Shaft with lever.

10. Switch

11. Bearing

12. Disengage levers of travel clutch

ADJUSTING PROCESS

1. Remove the plastic cover of PTO

clutch hand control lever

2. Loosen the adjusting screw (4). You

will loosen the nut (3) by this way.

3. Adjust the play between bearing (11)

and clutch levers (12) by means of
adjusting nut (3) so that, to be 4 mm
play between bearing (11) and clutch
levers (12), the play must not be
lower than 2,5 mm. Hold the push-pull
cable screw (6) in adjusting nut (3) to
avoid its rotation together with ad­justing nut (3) and so to avoid ply
apart of push-pull cable wire (2).

4. Secure the adjusting nut (3) by ad-

justing screw (4). Pay attention that
the adjusting nut (3) bears on upper
surface of pin (5).

5. Indicator light must be ´on´ after rais­ing lever (1) into position in that the
clutch is disengaged.

6. Control force on the lever (1) is
maximally 200 N when correctly ad­justed travel clutch disengage levers.
travel clutch disengage levers must
be adjusted if the force is excessively
increased ( approximately twice).

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

AGRICULTURAL MACHINE PTO DRIVE

A 94a A 95

∗ PNEUMATIC CONTROL WITH ME­CHANICAL LINKAGE

PTO clutch is disengaged by raising of
lever handle. Lever is automatically
latched in the upper position.

1. Lever

2. Push-pull cable

3. Adjusting nut

4. Adjusting screw

5. Pin

6. Push-pull cable bolt

7. Two arm lever

8. Pin

9. Shaft with lever

10. Switch

11. Bearing

12. Travel clutch disengage levers

13. Adjusting link

14. Link

15. Pneumatic cylinder

16. Electromagnetic valve.

ADJUSTING PROCESS FOR PNEUMA­TIC CONTROL WITH MECHANICAL
LINKAGE

1. Remove the plastic cover of PTO
clutch hand control lever.

2. Adjust the play between bearing (11)
and clutch levers (12). Do the ad­justing by means of link (13) that way
the play between bearing (11) and
clutch levers (12) is 4 mm, this must
not be lower than 2,5 mm.

3. Pneumatic cylinder piston (15) must
be in its initial stop position when
adjusting.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

AGRICULTURAL MACHINE PTO DRIVE

4. Loosen the adjusting screw (4) and
nut (3). Set the play 0,1

+0,2

mm
between pin (8) and opening of link
(14) by adjusting nut (3). Hold the
push-pull cable bolt 6) in adjusting nut
(3) to avoid its turning together with
adjusting nut (3) and ply apart of
push-pull cable wire (2).

5. Secure the adjusting nut (3) by ad­justing screw (4) after adjusting. Keep
attention that the bearing surface of
nut (3) touches the upper surface of
pin (5).

6. Inspect the play between bearing (11)
and clutch levers (12), eventually ad­just by link (13).

7. After adjusting raise the PTO control
hand lever (1) (with disconnected ele­ctrical supply for electromagnetic val­ve (16)) by force that is necessary for
PTO declutching. Check adjusting
according to points 4.,5. and 6. after
releasing the lever (1).

8. Indicator light on the dashboard must
be ´on´ after raising PTO control hand
lever (1) into declutching position.

9. The force on PTO control hand lever
(1) is max. 120 N with connected
electromagnetic valve switch (16) ­´on´ and 200 N with disconnected
electromagnetic valve switch at
correctly adjusted travel clutch disen­gage levers (12). If the force is ex­cessively increased (twice) the travel

clutch engage levers must be again
adjusted.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

AGRICULTURAL MACHINE PTO DRIVE

A 96 A 97

FRONT PTO CLUTCH CONTROL VAL­VE LEVER

Front PTO clutch control valve lever.
a - engaged PTO
b - disengaged (STOP) PTO
Clutch is engaged when the air press
reaches minimally 500 kPa ( measured
on pressure gauge). The valve ensures
automatic PTO clutch disengaging when
the air press drops under 410 “ 60 kPa.

There is a time gap between
control valve lever move and ma­chine starting move.

Warning!

The condensed water from the space of
clutch sealing cuff must be removed
before each winter time. This is done by
several times clutch engaging and
disengaging after removing the plug (A).
The pressure air blows the impurities
and condensed water from the space of
clutch sealing cuff. Do not forget to
reassemble the plug back.

FRONT PTO SHAFT

Front PTO
end

21 splines, dia. ∅ 35
mm, standardized

Speed 1000 RPM at 1820

engine RPM
Turning
direction see picture
Max. trans­mitted power 30 kW

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

NOTE

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

HYDRAULIC SYSTEM

The hydraulic system is intended for
lifting and lowering of agricultural ma­chines and implements attached in the
rear three point hitch.

Page

Hydraulic system (A).................................................................................................74

Hydraulic oil filtration.................................................................................................74

Hydraulic inner circuit................................................................................................75

Response rate control lever (3).................................................................................75

Inner circuit control lever (1)......................................................................................75

Control position mode selection lever .......................................................................76

Outer circuit control lever .......................................................................................... 77

Hydraulic outer circuit................................................................................................78

Hydraulic outer circuit outlets -rear ...........................................................................78

Max. oil capacity supplied from outer circuit .............................................................78

Single-acting hydraulic cylinder control.....................................................................79

Double-acting hydraulic cylinder control ...................................................................79

∗ Selective control valve............................................................................................80

∗ Front outer circuit outlets........................................................................................80

Connection of machines and implement to hydraulic outer circuit ............................81

Rear three point hitch................................................................................................82

Rear three point hitch attaching ................................................................................83

∗ Lower link stabilizers ..............................................................................................84

∗ Telescopic lower draft links ....................................................................................84

Top link......................................................................................................................85

Top link......................................................................................................................85

Selection of top link position .....................................................................................85

∗ Front three point hitch ............................................................................................86

Front three point hitch control ...................................................................................86

Regulation of lowering and hydraulic lock of front three point hitch ..........................86

Reduction valve setting.............................................................................................87

Carried implement attaching .....................................................................................87

Warning.....................................................................................................................87

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

HYDRAULIC SYSTEM

A 98 A 99

HYDRAULIC SYSTEM (A)

Hydraulic system consists of inner and
outer circuit. The oil from transmission
and differential case is used for hydraulic
system. The gear type pump (B), driven
by engine timing gears, delivers the
pressure oil into system. The non­disengageable pump is located on the
left side of engine. The pump capacity is
40 l.min-1 (* 50 l.min-1 as an option) at
nominal engine speed. Max. pressure 20
MPa is maintained by pressure relieve
valve in the circuit ( set to 18+2 MPa).

HYDRAULIC OIL FILTRATION

Hydraulic pump sucks the oil through the
suction cleaner located on the left side
of transmission. You can change the oil
cleaner without transmission oil draining.
The oil drains from the cleaner cartridge
at cleaner exchange. A clean vessel of
approximately 10 l capacity must be
used. Prepare the new cartridge advan­ce. The drained oil can be again used in
transmission (in case the cartridge is ex­changed outside of recommended time
of oil or cleaner exchange).

Exchange the cleaner cartridge
when cool oil - danger of your
burning.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

HYDRAULIC SYSTEM

A 100 A 101

HYDRAULIC INNER CIRCUIT

Hydraulic inner circuit is controlled by
the inner circuit control lever (1), control
position mode selection lever (2) and re­sponse rate control lever (3). Adjustable
stop (4) maintains the inner circuit
control lever in the selected position.

RESPONSE RATE CONTROL LEVER
(3)

The oil flow into inner circuit is the big­gest one if the lever is in position to­wards driver´s seat. Hydraulic response
rate is reduced by restriction of the oil
flow at the draft or mixed control, for
example when ploughing in various soil
conditions.

INNER CIRCUIT CONTROL LEVER (1)

Inner circuit control lever controls:

- Lifting and lowering implements.

- Height adjustment of three point hitch
with implements at selected position
control.

- Pulling force adjustment (resistance of
implement at draft or mixed control)

- Setting of so called floating position at
work with implement equipped with
supporting wheel.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

HYDRAULIC SYSTEM

A 102

CONTROL POSITION MODE SELECTION LEVER

Lever has three positions marked by P, M, D:

P - Position control - Implement attached in the three point hitch is automatically

maintained in the constant position with regard to the tractor.

M - Mix control - is a combination of position and draft control. This is suitable

especially for ploughing at soils with various resistance.

D - Draft control - Implement attached in the three point hitch is automatically

readjusted depending upon the soil resistance change.
All position controls enable also work with implement having the supporting wheel in
so called floating (free) position.

The control position mode se­lection lever must be moved into
P position when transporting im­plement.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

HYDRAULIC SYSTEM

A 103

OUTER CIRCUIT CONTROL LEVER

There are three positions on the label:
a - Pressure is in quick-coupler No "1", quick-coupler No "2" is connected with re-

turn line. Lever is moved into its rear margin position. The lever must be kept in
this position otherwise is automatically turned into neutral position "b".

b - Neutral position (locked). Outlets of quick-couplers No "1" and "2" are closed

and the oil is blocked in attached hydraulic implement. The lever is automatically
kept by spring in this position.

c - Floating (free) position. Both outlets of quick-couplers No "1" and "2" are

connected with return line and the oil can freely flow in both directions. Lever is
locked by valve ball lock in this position.

d - Pressure in quick-coupler No "2", quick-coupler No "1" is connected with return

line. Lever is moved into its forward margin position. The lever must be kept in
this position otherwise is automatically turned into floating position "c".

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

HYDRAULIC SYSTEM

A 104

HYDRAULIC OUTER CIRCUIT

Hydraulic outer circuit delivers the pres­sure oil into hydraulic implements
connected to hydraulic outer outlets
equipped with quick-couplers. Quick­coupler sockets have inner diameter
12,5 mm and correspond to the ISO
international recommendation.

A 105

HYDRAULIC OUTER CIRCUIT OUT­LETS -REAR

Hydraulic outer circuit outlets are
equipped with three quick-couplers lo­cated on quick-coupler panel. Quick­couplers No "1" and No "2" are alternati­vely pressurized. The third quick-coupler
No "0" is connected directly with diffe­rential case space and is intended for
turning of the oil from hydraulic imple­ments (for example from rotary hydro­motors etc.).
Attached implements using the oil from
hydraulic outer circuit must be filled with
the same kind of oil as recommended for
tractor transmission.

MAX. OIL CAPACITY SUPPLIED
FROM OUTER CIRCUIT

Max. 20 litters of oil can be temporarily
supplied from outer outlets for work of
attached implements. At bigger supply of
oil the hydraulic pump might draw in the
air and the pump could be damaged.
In case the oil level dropped after dis­connecting implement caused by perma­nent supply of oil from tractor into hydra­ulic circuit of implement it´s necessary to
add the missing quantity of oil.
Transmission and differential case oil ca­pacity - see table “QUANTITY OF
LIQUIDS°. Quantity of oil is bigger by
two litters at 4WD tractors.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

HYDRAULIC SYSTEM

A 106 A 107

SINGLE-ACTING HYDRAULIC CYLIN­DER CONTROL

Single-acting hydraulic cylinder is ever
connected with quick-coupler No "1":

- lifting, - lever is in the rear margin po-

sition (it must be kept by hand in this
position)

- neutral, - lever is in the middle position

and is kept by spring in this position

- lowering, - lever is in the middle,

between neutral and front margin posi­tion and is automatically locked ( so
called floating position)

DOUBLE-ACTING HYDRAULIC CYLIN­DER CONTROL

Double-acting hydraulic cylinder is
connected with quick-coupler No "1" for
moving piston rod out of cylinder and
with quick-coupler No "2" for sliding in:

- lifting, lever is in the rear margin po­sition “a° ( it must be kept by hand in
this position)

- neutral, lever is in the middle position
“b° and is kept by spring in this posi­tion

- lowering, lever is in the front margin
position “d°

- floating (free) position “c°, lever is in
the middle, between neutral and lower
margin position and is automatically
locked - both quick-couplers are
connected with return line.

Control lever must be moved as
quickly as possible over position
’c" (floating position) at work with
outer circuit double-acting hydra­ulic cylinder because both sides
of cylinder are connected with
the return line and so the un­controlled movement of piston
rod can start.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

HYDRAULIC SYSTEM

A 108

∗SELECTIVE CONTROL VALVE

2nd & 3rd selective control valve (SCV)
consists of two sections. Each section
has two pressure outlets (marked by
°3,4,5,6°). Those are alternatively noc­nected with:
a - quick-couplers (°3,4,5,6°), located

on the rear panel

b - front three point hitch circuit for

lifting and lowering (quick-couplers
°5,6°)

c - front quick-couplers located on front

panel (quick-couplers °3,4°)
Quick-couplers °3,4° are located on the
rear panel even for alternative No °2 and
3°.
Both sections are equipped with floating
position (labeled F), sections with outlets
°5, 6° are moreover equipped with lock in

both pressure positions. The spool valve
in this section is automatically turned
into neutral position when the pressure
reaches the relieve valve pressure.
SCV control levers are located on the
right fender in the cab nearby hydraulic
control levers.

∗FRONT OUTER CIRCUIT OUTLETS

Front outer outlets are equipped with the
three quick-couplers located on panel,
quick-couplers °3,4° are alternatively
pressurised. The third quick-coupler °0°
is directly connected with the differential
housing space and is intended for the oil
coming back from outer hydraulic
implements.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

HYDRAULIC SYSTEM

A 109

CONNECTION OF MACHINES AND
IMPLEMENT TO HYDRAULIC OUTER
CIRCUIT

ROTARY HYDROMOTOR OR SCV
Oil inlet line into these implements
(marked P) is connected with quick­coupler "1", oil return line is connected
with quick-coupler "0". If the reversible
hydromotor is used the oil lines are
connected with quick-couplers "1" and
"2".

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

REAR THREE POINT HITCH

REAR THREE POINT HITCH

Rear three point hitch is intended for attaching of carried or semi-carried agricultural
machines and implements with hitch points of category I and II according to ISO
regulation. Categories are differed on the base of hitch axis length (implement
attachment points distance). This is the distance of lower link joint ball centers at
attached implement. The link axis length is 728 mm for category I and 870 mm for
category II. The inner opening of lower link ball is 28 mm equal for both categories
according to ISO regulation. The inner opening of top link ball is 25 mm.
The three point hitch consists of:

1. Top link.

2. Left lift link.

3. Right adjustable lift link.

4. Lower draft link stabilizers.

5. Lower draft links.
The extended lower link supports are assembled as the standard at tractors Z 6321
to Z 7341, those enable fixing of lower links and their stabilizers. The narrow lower
link supports - category I as the standard or ∗ extended lower link supports are
assembled at tractors Z 3321 to Z 5341.

Non authorized persons who are not charged to handle the attached tractor
implements must not be left between tractor and attached implement. Do not
park the tractor with lifted implement.

A 110

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

REAR THREE POINT HITCH

REAR THREE POINT HITCH ATTACHING

The left lifting link is intended for course vertical adjustment of lower link position and
is adjustable after disconnecting of its upper end from hydraulic lifting arm pin. The
right lift link (3) serves for fine adjustment of lower link position by means of gearbox
controlled from driver´s cab. Lower link ends can be mutually vertically adjusted
within range 200 mm. Floating (free) position of implement and swinging round the
axis is enabled after sliding of left link pin into the groove. In this case the lower draft
link ends can be freely vertically moved by 100 mm one each other. Lower link
stabilizers (5) serve for limiting of side to side swing of lower links within the whole
three point hitch lift. The side swing can be max. 125 mm to each side measured on
the lower link balls after adjusting to maximal stabilizer length.

Lower draft links have to be connected by springs (6) and the top link (1)
hooked in the spring holder when transportation without implement. Lower
link stabilizers (5) need to be shortened at transportation to avoid the
undesired side swing of implement.

A 111

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

REAR THREE POINT HITCH

A 112 A 112a A 113

∗ LOWER LINK STABILIZERS

Lower link stabilizers enable the side
swing of lower links approximately 125
mm to each side measured on lower
balls when working with implement cate­gory I and 90 mm with implement cate­gory II.
Lower link stabilizers are automatically
set by attaching implement.

Both stabilizers must be always
assembled on the tractor.

The side swing is limited by locking of
stabilizers with pin 1.

The opening nearby the groove is in­tended for category I and the other one
for category II. The rear wheel tread
must be readjusted when working with
implement of category II that needs the
side swing (for example plough). The
rear tread 1500 mm (standard setting)
must be set for tires 16,9-30, 16,9-34,
18,4-34 and at link axis 870 mm (imple­ment attachment points distance

∗TELESCOPIC LOWER DRAFT LINKS

Telescopic lower draft links make imple­ment attaching easy. Telescopic draft
link ends (9) are loosened after pushing
of latches (8) down. Slipped out draft
link ends are fitted onto both implement
pins and are locked by quick lock pins.
Draft link ends are slid into draft links
after driving reverse and are automa­tically locked in working position.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

REAR THREE POINT HITCH

A 114 A 115 A 116

TOP LINK

Top link (1) is length adjustable within
range 180 mm. This is attached to the
tractor into one from four openings of
bracket that transfers impulses (senses)
from attached implement to the torsion
shaft located in hydraulic rockshaft.

Top link must be moved into
opening ! d! at implement trans­portation to avoid overload of
hydraulic kinematics system or
attached implement falling down.

TOP LINK

Pay attention to keep the same
length of joints from the link tube
at prolongation of the top link.

SELECTION OF TOP LINK POSITION

Attachment of top link into one from
openings "a"-"d" influences the following:

- Sensitivity of hydraulic response cont­rol position selection lever in position
"D" or " M"). The biggest response
sensitivity is with top link in the
opening "a".

- Implement tilting when in lifted position
with regard to the implement frame
high (460 mm to 610 mm). The
smallest tilting is with top link in the
opening "a".

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

∗FRONT THREE POINT HITCH

A 117 A 118 A 119

∗FRONT THREE POINT HITCH

Front three point hitch is intended for
attaching of frontal carried agricultural
machines and implements of category II
according to ISO standard.

Within the implement trans­portation the front three point
hitch must be always hydrauli­cally locked in lifted position by
the ball valve located on the left
hand side of tractor above the
front axle.

This hydraulic lock is also recommended
in case if no implement is attached into
the front three point hitch.

FRONT THREE POINT HITCH CONT­ROL

Three point hitch is equipped with two
single or double - acting cylinders that
are controlled by oil from the 2nd and 3
rd selective control valve. Lifting and
lowering is controlled by SCV lever (1):

- lifting is done by moving the lever into
position 6

- lowering is done by moving the lever
into position 5

- position F serves for floating position.

- position N serves for locking of hitch

REGULATION OF LOWERING AND
HYDRAULIC LOCK OF FRONT THREE
POINT HITCH

Lowering speed of hitch with implement
can be controlled by return reduction
valve. Hydraulic lock of front three point
hitch in any position is carried out by
means of the ball valve and by turning
the lever from position A by 90„ (per-
pendicularly to valve axis) to B position.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

∗FRONT THREE POINT HITCH

A 120 A 121 A 122

REDUCTION VALVE SETTING

Reduction valve (3) setting is re­commended before starting work with at­tached implement in front three point
hitch that way the time needed for im­plement lowering from the upper position
is 1 to 1,5 second. Lowering speed is in­creased by turning the valve body into
left (in arrow direction).

CARRIED IMPLEMENT ATTACHING

The implement is attached into the front
three point hitch forks and is locked by
pins. Fixed and floating position is pro­vided by pins:

- fixed position of attached implement is
provided by assembly of pins into po­sition 1

- floating position of attached implement
is provided by assembly of pins into
position 2

WARNING

The highest allowed speed of tractor with
agricultural machine attached into the
front three point hitch is 15 kmph.
We recommend removing of lower lifting
arms (A) from supports at tractor equip­ped with front three point hitch if not
used for attaching implement. Front
lower links are disassembled after re­moving of safety pins and hitch pins (B).

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

NOTE

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

FRONT AND REAR AXLE

Page

Front wheel tread setting at non-driven axle ............................................................. 91

Adjustment of front axle knees..................................................................................91

Front driving axle tread setting..................................................................................92

Front driving axle fenders..........................................................................................92

Setting of stops .........................................................................................................93

Front wheel toe-in .....................................................................................................94

The tractors are standartly equipped with hydrostatic steering .................................95

Rear wheel tread setting ...........................................................................................96

Rear wheel tread setting ...........................................................................................96

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

FRONT AXLE KNEES

Tractor Type Z 3321 Z 3321, Z 4321 Z 3321, Z 4321

Z 5321, Z 6321

Z 4321, Z 5321
Z 6321, Z 7321

Front tyre 6,00-16 6,50-16

∗7,50-16

7,50-20
Adjustable tread 1450, 1525, 1825 1450, 1525, 1825 1425, 1500, 1800 1425, 1500, 1800
Tractor knee load capacity

at tractor speed

20 km.h

-1

8 km.h

-1

1510 kg
2240 kg

1660 kg
2460 kg

2010 kg
2980 kg

2360 kg
3000 kg

Complete summary of treads and maximal allowed loads caused by additional devices or attached machines for front axles of
particular tractor models is mentioned in chapter ´MAIN TECHNICAL PARAMETERS“.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

FRONT WHEEL TREAD SETTING

A 123

FRONT WHEEL TREAD SETTING AT
NON-DRIVEN AXLE

Front wheel tread setting is provided by
sliding out and in of front axle knees (A)
at lifted axle and with corresponding
setting of adjusting elements.

ADJUSTMENT OF FRONT AXLE KNEES

- Thread out axle knee nuts (1) and remove the screws.

- Loosen the lock nuts on ball joints (2) on ball joint sockets (3) and remove

both connecting rods (4).

- Slide out or in the knees to the required tread, reassemble screws. Tighten
axle knee nuts by torque 177-196 Nm.

- First of all fix the tractor against possible movement, lift the axle by lifting jack and
support it.

- Thread the correct connecting rods (4) with marking of wheel tread (delivered as
an option) adjust the toe-in and secure by lock nuts (2,3).

- Tighten nuts by torque 122 - 136 Nm.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

FRONT DRIVING AXLE TREAD SETTING

A 124 A 125

FRONT DRIVING AXLE TREAD
SETTING

The following treads can be set for front
driving axle at used tires 9,5-24, 11,2-24
and 12,4-24:
1500, 1594, 1650, 1745 and 1800 mm.
The following treads can be set for front
driving axle at used tire 13,6-24:
1583, 1660, 1734 and 1810 mm
Tighten front wheel nuts by torque 270 ­300 Nm.

FRONT DRIVING AXLE FENDERS

Front fenders are located on adjustable
holders that can be side ( moving of
screws “a“ into another openings) and/or
height (moving of screws “b“ into another
openings) adjustable according to the
desired wheel treads and used wheel
tire size.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

FRONT DRIVING AXLE STOP SETTING AT Z 3341, Z 4341, Z 5341, Z 6341, Z 7341

A 126

SETTING OF STOPS

Set stops at each change of front wheel
tread according to the mentioned tables
after loosening of nut "2" and treading
out or in of screw "1" to value “A“.

tractor w/fenders

tire 9,5-24 11,2-24 11,2-24 12,4-24 13,6R24

treads A (mm) A (mm) A (mm) A (mm) A (mm)

1500
1583
1594
1650
1660
1734
1745
1800
1810

33

­29
22

-

­19

-

-

44

-

-

-

-

-

-

-

-

-

­43
37

-

­29
25

-

-

­43
37

-

­30
26

-

-

43

-

­37
33

-

­26

tractor w/o fenders

tire 9,5-24 11,2-24 11,2-24 12,4-24 13,6R24

treads A (mm) A (mm) A (mm) A (mm) A (mm)

1500
1583
1594
1650
1660
1734
1745
1800
1810

29

­24
19

-

­13
13

-

∗36

-

∗30
∗25

-

-

∗21
∗17

-

-

­26
22

-

­18
14

-

-

­31
27

-

­21
17

-

-

36

-

­30
25

-

­21

∗ - for Z 3341 only

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

FRONT WHEEL TOE-IN

A 127

FRONT WHEEL TOE-IN

Front wheel toe-in is measured on the
rim and is 2 to 6 mm at tractor with non ­driven axle.
Front wheel toe-in is 0 to 4 mm at tractor
with front driving axle.
Check and eventually adjust the play of
front wheel bearings before toe-in
checking.

A 128

Front wheel toe-in is measured on rims. The toe-in "S" is calculated as difference of
measured values: S = B - A

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

FRONT WHEEL TOE-IN

A 129

THE TRACTORS ARE STANDARTLY
EQUIPPED WITH HYDROSTATIC
STEERING

The process of setting is valid for
both axles:

- Measure the distance between rims in
front in the horizontal wheel axis plain.
Mark the measuring points.

- Drive the tractor so that the marked
points will be in rear horizontal position
(turned by 180°) and again measure
the distance between marked points

- Tighten the nuts of ball joint socket by
torque 122 - 136 Nm. The upper surfa­ces of joint sockets must be parallel.

Tractors with front non-driven axle:

- Slide out the steering cylinder piston
rod up to value 145,5 „ 1.

- Loosen nuts (2,3) and adjust the toe-in
to the required value by turning of rod
(4) (measure on the rim side)

Tractors with front driving axle:

- Turn wheels parallel with longitudinal
tractor axis.

- Loosen the ball joint socket nuts of
steering connecting rod at hydraulic
cylinder.

- Adjust the prescribed toe-in by turning
of ball joint pin. Adjust both joints to
keep the same steering angle on both
sides (measure on rim side).

If you use tractor in the road traffic
(dominant using) we recommend to turn
the front tires on the rims. You prolong
the durability of tires.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

REAR WHEEL TREAD

A 130 A 131

REAR WHEEL TREAD SETTING

On the base of rear tire width, the rear
wheel tread can be set within the
following range by 75 mm:
1350 to 1800 mm - Z 3321, Z 3341, Z
4321, Z 4341, Z 5321, Z 5341, Z 6321, Z
6341, Z 7321, Z 7341
Standard rear wheel tread 1500 mm is
set at the factory on models Z 3321 to Z

7341.
Rear wheel tread 1350 can be minimally
set for following tires (12,4-28; 12,4-32;
13,6-36).

REAR WHEEL TREAD SETTING

The rear wheel treads are adjustable by
step 75 mm and are set by changing of
rim and disc position. Tread setting is
done with lifted tractor rear part to en­able rear wheel free turning.

Don’t forget to block front wheels
against movement before lifting.

Tighten all screws connecting the disc
and rim by torque 225 - 250 Nm and
nuts of studs connecting the disc and
shaft by torque 400 - 470 Nm after tread
setting.

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

NOTE

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

NOTE

PDF byl vytvo’en zkuˇebns verzs FinePrint pdfFactory http://www.fineprint.cz

BALLAST WEIGHTS

Ballast weights are necessary for axle
load increase, for ensuring of tractor
steeringability or stability (keep manu­facturer’s instructions when working with
front loader).

Page

∗ Under frame front ballast weights (A)...................................................................100

∗ Under frame front ballast weights (B)...................................................................100

∗ Ballast weights for 4wd tractors (A) ......................................................................100

∗ Front ballast weights ............................................................................................100

Rear wheel ballast weights .....................................................................................100

Valve for filling of tires with liquid ............................................................................101

Blocking front wheels .............................................................................................. 101

Process for filling water into tires (picture on the following page) ...........................101

Process for draining liquid from tires.......................................................................102

Max. liquid weight (kg) depending upon tire size ....................................................103

Antifreeze liquid for filling of tires ............................................................................103

PDF byl vytvořen zkušební verzí FinePrint pdfFactory http://www.fineprint.cz