Zetor 8621 Forterra turbo User manual

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ZETOR
This operator’s manual will help you to become familiar with the operation and maintenance of your newtractor.
In spite of fact that many of you have reach experiences with operation of various tractors, please, read carefully all
safety rules and operating instructions in this operator ’s manual before attempting to operate the tractor.
You will find alot of newinformation and receive aperfect overviewhowto use the tractor with highest efficiency at
various operations.
Your newZetor tractor will be your reliable friend if observing the mentioned safety rules, tractor maintenance and
safe operation
Manufacturer of Your tractor wishes you thousands of satisfactorily worked hours.
ZETOR
Brno

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Information about technical specifications, design, equipment, material, and external appearance is valid in the time of printing
this operator’s manual. Manufacturer reserves all rights for changes.

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CONTENTS
The operator’smanual contains de-
scription, operation and maintenance of
standard and optional tractor equipment.
Service checkbook isn’tapart of
operator’smanual. This is the separate
booklet that is passed to you when
purchasing newtractor.
Page
Location of serial numbers .......................................................................................... 9
Safety instructions for user........................................................................................ 12
Preventive daily service ............................................................................................ 15
Acquintance with tractor ............................................................................................ 23
Electronic engine governor ....................................................................................... 51
Operation .................................................................................................................. 63
Tractor running in ......................................................................................................83
Transportation ........................................................................................................... 91
Driving the agricultural machines ............................................................................ 101
Hydraulic system ..................................................................................................... 107
Electro-hydraulic ..................................................................................................... 121
Hitches .................................................................................................................... 133
Wheel tread setting .................................................................................................145
Balast weights ......................................................................................................... 155
Maintenance instructions ........................................................................................ 163
Adjustment .............................................................................................................. 189
Electrical installation ............................................................................................... 203
Planned technical maintenance .............................................................................. 219
Main technical parameters ...................................................................................... 239

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ZETOR 8621, 9621 FORTERRATURBO
F 1
Zetor 8621 Forterra turbo - 60 kW
Zetor 9621 Forterra turbo - 67,5 kW

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ZETOR 8641, 9641, 10641 FORTERRATURBO
F 2
Zetor 8641 Forterra turbo - 60 kW
Zetor 9641 Forterra turbo - 67,5 kW
Zetor 10641 Forterra turbo - 76 kW
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ZETOR 11641 FORTERRA
F 3
Zetor 11641 Forterra - 81 kW
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LOCATION OF SERIAL NUMBERS Z 8621 - Z 10641 FORTERRATURBO
F 4
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LOCATION OF SERIAL NUMBERS Z 11641 FORTERRA
F 5
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LOCATION OF SERIAL NUMBERS
Whenever you contact your authorized service dealer or the factory for order of service parts, always knowthe model and serial
numbers of your tractor. For your convenience, write those numbers in the frames below.
Tractor model
ZETOR 8621, 8641, 9621, 9641, 10641
ZETOR 11641
The “left“, “right“, “front“and “back“side
of the tractor is determined by traveling
direction.
Manufacturer reserves rights for
changes of design and option, that
improve the tractor features.
Tractor serial number Engine serial number
F 6
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SAFETY INSTRUCTIONS FOR USERS
Keep extreme attention when
reading parts of operator smanual
that are marked by these symbols.
You will find this symbol at all
important warnings identifying
the safety of tractor operation.
Keep these safety massages
and however regardless of the
hazard, be extremely careful!
Inform your cooperators and
other users about these mes-
sages.
This symbol marks all chapters
speaking about different opera-
tion, maintenance, adjustment
and safety rules at tractors
Z 11641Forterra.
Study carefully chapters marked
by this symbol before starting
with operating, servicing or
adjusting the tractor.
You will find this symbol when-
ever important informations on
operation, adjustment and re-
pairs of starter motor.
Keep these regulations and be
extremely careful in these
cases!
∗This symbol marks such tractor
equipment that is not assembled
as astandard (optionally
assembled equipment only).
GENERAL SAFETY REGULATIONS
1.Only atrained operator having avalid
driving license and being properly
acquainted with operating and safety
rules can operate the tractor.
2.Except of safety warnings mentioned
in this operator’smanual you must
respect all general safety and traffic
regulations of country where the tractor
works.
PROPER CLOTHING
3.Don’twear loose clothing and free
flying long hair at operation.
4.Use suitable (prescribed) personal
protection means (working boots, gloves
etc.) at work.
STARTING ENGINE
5.Starting the engine when driving trac-
tor downhill is forbidden.
6.Starting tractor by means of towing
with another tractor or vehicle is allowed
only when the pull bar is used.
7.Tractor Z11641 can not be
started without battery, with dis-
charged battery or without exter-
nal source (see electronic governor of
injection pump).
7.Start the tractor from
driver’sseat only with
shifting lever in neutral
position. Life hazard when
starting by starter connec-
tor short circuit.
8.The key of the key switch must be in
position "I".
9.When preheating engine by electrical
heater, plug the heater first and connect
the cable into electricity after. After pre-
heating disconnect the cable from
electricity first.
WARNING! Electrical shock hazard
OPERATION
11.Hoses of hydrostatic steering, brakes
and fuel system must be checked and
replaced in case of any damage indi-
cation. The damage indication is for
example: cracks on hose surface,
loosening of hose fittings (verify it by pul-
ling of hose from fitting) and mechanical
damage of hose.
12.Brakes and steering must be per-
manently in perfect condition.
13.Brake pedals must be latched at
transportation with trailers and imple-
ments on the road.
14.Driving downhill without shifted gear
is forbidden!
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SAFETY INSTRUCTIONS FOR USERS
15.Pay special attention when driving on
hilly, muddy, sandy, icy and uneven ter-
rain.
16.Don’texceed the max.specified incli-
nation angle 120 for 4WDtractors (res-
pectively 110for 2WD tractors).
17.Don’texceed the max.total weight of
trailers mentioned in the tractor serial
number plate or rear fender label.
18.Don’tuse the differential lock when
driving into the turning.
19.Never get out or into the driving trac-
tor. This is forbidden.
20.Reduce the travel speed to 20 km/h
when transporting agricultural imple-
ments hitched in the front three point
hitch.
21.The front axle load must not be lower
than 18 to 20 %of immediate total trac-
tor weight when transporting agricultural
implements hitched in the rear three
point hitch.
TRANSPORTATION OF PERSONS,
OPERATION
22.Number of persons transported by
tractor must not exceed number men-
tioned in tractor technical license.
23.Persons, unauthorized to work with
attached implement, must not stand
between tractor and hitched implement
(machine).
24.Make sure neither any person nor
any obstacle allowsdriving before star-
ting tractor move.
25.Max.allowed travel speed of tractor
and trailer equipped with one hose air
trailer brakes is 25 km/h.
26.Don’texceed the max.specified
inclination angle 110for tractors Z 8621
and Z9621 and 120 for tractors Z 8641,
Z 9641, Z 10641, Z 11641.
RELEASING AND PUSHING TRACTOR
27.Use apull bar or arope for releasing
an 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 the alone tractor
only, i.e. without trailer or another imple-
ment.
29.Never use free wooden blocks,
planks or bars put between tractor and
pushed subject when pushing other ve-
hicles (trailers, wagons etc.).
LEAVING TRACTOR
30.Do not park the tractor with attached
implement in lifted position.
31.Don’tforget 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 reverse lever into forward
position.
33.Brake the tractor with parking brake
before leaving tractor with running en-
gine.
34.Usually use the left-hand side of trac-
tor- left door when leaving tractor. Look
round if any vehicle coming, that could
jeopardize your safety when leaving and
open the door.
35.Use steps and handles when leaving
the tractor. When leaving tractor by the
right door pay attention being in space of
shifting levers and hand throttle control.
AT STOPPED ENGINE ONLY
36.All activities like refueling cleaning,
lubricating and adjusting tractor or
attached implement can be done at
stopped engine and stopped moving
tractor parts only, except of brake,
hydraulics and charging function inspec-
tion.
37.It is necessary to 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.
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SAFETY INSTRUCTIONS FOR USERS
FIRE PREVENTION RULES
38.Refuel the tractor after finishing the
job and with stopped engine.
39.Don’t refuel the fuel tank up to the top
in summer season. Wipe the fuel
immediately when spilled.
40.Don’trefuel the tractor nearby an
open flame. Don’t smoke.
41.Don’tsmoke and don’tuse an open
flame when inspecting the battery
electrolyte level.
42.Keep properly the fire prevention re-
gulations in areas with increased fire
hazard (hay-lofts, straw-stocks etc.).
43.If the tractor is equipped with afire
extinguisher keep it ready for use.
44.Use the spark arrestor when working
in fire hazard environment.
HEALTH AND ENVIRONMENT PRO-
TECTION
45.Tractors are not equipped with spe-
cial ventilation filters of inlet air coming
to the cab. That’swhy 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 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 might
cause the total poisoning when used.
46.Persons working with crude oil pro-
ducts must properly keep safety and
hygienic regulations, they must use the
suitable protectors and work in properly
ventilated areas.
WORKING WITH CRUDE OIL PRO-
DUCTS
47.Wash properly your hands with mild
detergent and treat them with suitable
skin ointment or cream after finishing
work or before eating.
48.Remove oil drops from quick-coup-
lers (from male and female) by textile
material after disconnecting or con-
necting hydraulic circuit.
PREVENTIVE DAILY SERVICE
49.Do this service every day or at least
every 10 hours.
SAFETY CAB
50.If corrosion or accident damages the
frame of safety cab it is necessary to
exchange the cab.
AIRCONDITIONING
51.In any case do not disassemble, turn
or manipulate with fittings of AC system.
This might create asudden escape of
fluid and local freeze. This could create
aserious damage of tissue when
touching or when frozen in hands.
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PREVENTIVE DAILY SERVICE
Do this service every day or at least every 10 hours
F 7
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PREVENTIVE DAILY SERVICE
F 8 F 9 F 10
FUEL SYSTEM LEAKAGE
Inspect the fuel system for leakage in-
cluding the fuel tank. Repair immediately
any leaks.
ENGINE OIL LEVEL
Check the engine oil and inspect the
lubrication system for leakage. Add the
oil to prescribed level.
COOLING SYSTEM
Inspect the engine cooling system for
leaks. Check the coolant level in the
expansion tank. Add the coolant to
"MAX“level. The minimum allowed level
is on the lower mark.
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PREVENTIVE DAILY SERVICE
F 11 F 12 F 13
FLUID SERVICE BRAKES
Inspect the brake and clutch circuit for
leaks and check the brake fluid level in
the brake fluid expansion reservoir.
AIR TRAILER BRAKES
Inspect the air brake system leak and
tractor break efficiency with trailer (see
„inspection of air brake leak“).
HYDRAULIC TRAILER BRAKES
Inspect the hydraulic brake system leak.
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PREVENTIVE DAILY SERVICE
F 14 F 15 F 16
STEERING
Check oil level in the hydrostatic steering
oil tank. Retighten bolts and nuts of
steering tie-rods and arms.
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, eventually
retighten bolts of front and rear wheels.
Never drive tractor with loosened bolts of
wheels.
AIR CLEANER
The indicator indicates clogging of the
air cleaner, this indicator switches the
lamp on the dashboard in case of strong
clogging.
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PREVENTIVE DAILY SERVICE
F 17 F 18 F 19
CAB FILTRATION
Check and eventually clean cab filters
located under the roof in front part. Filter
exchange interval depends upon dust-
iness of working condition. The partial
regeneration of filters can be done by
shaking-out or blowing by press air.
Filters are accessible after removing of
grills located in front of cab roof.
HITCHES
Check the status of hitches and attach-
ments including the trailer.
AFTER OPERATION WITH FRONT
IMPLEMENTS
Remove the front mask to be able to
blowout impurities outside the tractor.
Clean the front part of radiators (radia-
tors of transmission, AC condenser) by
the press air, blowit in direction from the
engine. Remove the rest of impurities
under the bonnet, otherwise their re-
peated suction into the cooling system
might appear.Inspect front three-point
hitch hydraulic circuit for leaks.
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PREVENTIVE DAILY SERVICE
F 20
SHORT FUNCTIONAL TEST
Check 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 its function.
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