Hitech VALTRA A74 User manual

QUICK START
GUIDE
A SERIES HITECH
YOUR
WORKING
MACHINE

In A series tractors utilises powerful 3 or 4 cylinder AGCO
Power engine combined with new 12 + 12 gear transmission,
gives a reliable all round tractor as a result. An all new cab
means more ergonomical and silent working environment for
driver, and ensures that your work can be done in the most
efficient way.
This guide has been created to help Valtra
operators to quickly become familiar with
their tractor.
VALTRA A SERIES
HITECH
2
A Series Quick Guide / HiTech

YOUR
Chassis ...............................................................4
Instrument panel controls...............................6
Side panel and arm controls ...........................7
Before driving the tractor.................................9
Starting to drive ..............................................10
Changing the gears .........................................11
HiTech ................................................................12
AutoTraction......................................................13
Engine RPM memory.........................................14
Hydraulics:Adjustingrearvalves...................15
Rear PTO ............................................................16
Rear controls and connections.......................17
WORKING
Field work..........................................................18
Transport...........................................................19
Front loader work...........................................20
PTO work...........................................................21
MACHINE
Tips....................................................................22
Dashboard........................................................23
YOUR
WORKING
MACHINE
3
A Series Quick Guide / HiTech

CHASSIS
A4 series tractors are made with
three different chassis sizes.
A74, A84 and A94 are equipped with Small chassis
and 3 cylinder engines. A104 and A114 are with Medium size
chassis and 4 cylinder engines, and A124 and A134 are with
Large chassis and 4 cylinder engines.
Different chassis sizes are made to ensure that you will
always get a right size tractor for your work.
MODEL A74 A84 A94 A104 A114 A124 A134
Engine Agco Power 3-cyl, 3.3 litre Agco Power 4-cyl, 4.4 litre
Output max, hp 75 85 95 100 110 120 130
Output max, kW 56 63 71 75 82 89 97
Torque max, Nm 312 347 355 410 417 502 540
Chassis Small Medium Large
Transmission 4WD, 12+12, HiTech Power shuttle. Optional creeper.
PTO 2 speeds 2 or 3 speed PTO
Lifting Power, ton 3.0 ton 4.3 ton 5.2 ton
Pump capacity 65 l/min 98 l/min
Wheelbase, mm 2250 2430 2500
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A Series Quick Guide / HiTech

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A Series Quick Guide / HiTech

1. Instrument panel
2. Hazard light switch
3. Power shuttle lever
4. Adjustment knob of the power shuttle engagement speed
5. Ignition switch
6. Multifunction lever
7. Light switch
8. Adjustment lever of the steering wheel position
9. Control panel of the instrument panel display
10. Steering wheel tilt pedal
1. Speed gear lever
2. Hand throttle
3. Engine RPM memory button
4. Switch for four-wheel drive (4WD)
5. Switch for differential lock
6. Switch for creeper gear (optional for PowerShuttle models)
7. Air Pressure trailer brake test switch (optional)
8. Range gear lever
9. Lever for creeper gear (A74-A94)
10. Engine RPM memory button rear (optional)
11. Lowering speed selector
12. Max lifting height selector
13. Draf control selector
14. Drive balance control knob
15. Indicator light of the drive balance control
16. Work position marker
17. Work position control knob
18. AutoControl switch (lift/stop/lower)
19. Forced lowering button
20. Lifting/lowering switch
21. Trailer hitch release lever
22. Position locking of the valve control lever
23. Control lever for auxiliary hydraulic valve 1
24. Control lever for auxiliary hydraulic valve 2
25. Control lever for auxiliary hydraulic valve 3
26. Control stop switch (optional)
INSTRUMENT PANEL
1
2
4
5
6
7
8
9
10
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A Series Quick Guide / HiTech
6

27. Switch for front loader on/off
28. Front loader hydraulic implement locking
29. Front loader Softdrive
30. Switch for combining hydraulic pumps (98 litre)
31. Rear window wiper and washer
32. Additional lower heater
33. Rotary beacon
34. Front working lights
35. Rear working lights
36. 2-pin current socket max 10A (optional)
37. 3-pin current socket max 5A and max 25A
38. 2-pin current socket
39. Rear PTO start / stop
40. PTO speed control knob (Medium and Large)
Valtra Arm controls
41. Joystick (J) Includes push buttons for 3rd and 4th function
42. Switch for continuous oating position ON OFF (FL1)
43. Switch for oating position activation (FL2)
SIDE PANEL AND ARM CONTROLS
1
2
3
45
6
7
22
23
24
26
25
28
30
29
27
8
10
11 12 13 14
15
16
17
18
19 20
21
34
36 37 38
32
35
33
31
39
40
9
41
44
43
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A Series Quick Guide / HiTech

Valtra A series transmission has
12 + 12 gears in two working ranges.
Having 6 gears in one working range
minimizes the need of two gear lever
changes when working.
Optional Super Creeper available when
the slowest speeds are required down
to 140 m/h* or even to 90 m/h**,
making the transmission 24 + 24 gears
with excellent overlapping over the
gears. See the example of the available
speeds.
In HiTech models you can change the driving
direction without using the clutch pedal. Just use
the power Shuttle lever under the steeting wheel. You
can also use clutch pedal if you prefer.
* at 1400 rev/min with 16.9R34 tyres (Small)
** at 1400 rev/min with 18.4R38 tyres (Large)
TRANSMISSION
VALTRA A104 driving speeds example, km/h
Gear Speeds at
2200 r/min
Speeds 1920
(=PTO 540)
r/min
Super creeper
speeds
(2200 r/min)
Super creeper
speeds
(1920 r/min)
A1 1,98 1,73 0,14 0,12
A2 2,73 2,38 0,19 0,17
A3 3,77 3,29 0,27 0,24
A4 5,24 4,57 0,37 0,32
A5 7,29 6,36 0,52 0,45
A6 9,89 8,63 0,73 0,64
B1 8,1 7,1 0,60 0,52
B2 11,2 9,8 0,82 0,72
B3 15,4 13,5 1,13 0,99
B4 21,4 18,7 1,57 1,37
B5 29,8 26,0 2,19 1,91
B6 40,5 35,3 3,06 2,67
Rear tyres 16.9R38 (SRI =800 mm)
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A Series Quick Guide / HiTech

1
4
3
1 Oil ller cap
2 Dipstick
1 Fuel cooler
2 Radiator and coolers
3 Cooler screen
1 Oil lling plug
2 Oil level gage
3 Leakage oil reservoir for the quick
couplings
Before starting the tractor, please make sure that daily
maintenance checks are done. Daily maintenance check
points are:
1.
Check the engine oil from dip stick
Engine oil stick is situated on the right side of the engine.
Make sure that engine oli level is between the lower and upper mark.
If necessary, add oil through the oil ller cap.
2.
Check coolant level
Make sure that the coolant level in the coolant expansion tank is above the
uid level mark for cold uid. Coolant expansion tank is located under the
engine hood
3. Visual check: tyres, oil leaks, radiators.
Clean front grill & radiators if needed.
4.
Check oil level in the transmission and hydraulic system
The oil level must be between the minimum and maximum lines of the oil
level gage. Gage is located at the rear of the tractor, next to PTO shaft. If
the leakage oil reservoir for the quick couplings is full, remove the oil and
discard it.
5. Check Fuel and AdBlue levels
BEFORE DRIVING
THE TRACTOR
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A Series Quick Guide / HiTech

STARTING TO DRIVE
1. Push down the clutch pedal and start the engine.
2.
Select the the speed range (A or B) and suitable gear.
Rememeber to select a gear low enough to manage the
start.
3. If you start to drive on a slope, push down the brake
pedals to keep the tractor stopped.
4. Move the power shuttle lever to the forward or reverse
position.
5. Release the clutch pedal.
6. Adjust the driving speed with the accelerator pedal and
change gears when necessary (see next page)
1
4
5
2 6
3
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A Series Quick Guide / HiTech

1. 6 main gears
2. 2 group gears. Lever in front position equals high (B) gears
and lever in rear position equals low (A) gears
3.
Creeper gear.
Lever (A74-A94) in lower position equals creeper ON. In A104-
A134 use the rocker switch. Tortoise down means creeper ON.
Always use clutch pedal and stop the tractor before
engaging / disengaging the creeper.
CHANGING THE GEARS
In A4 series tractor you have 6 main gears and 2 range
gears. Optionally you can have also super creeper gears
which are used for very low speeds.
1
2
3
3
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A Series Quick Guide / HiTech

In HiTech models you don’t need to press the
clutch pedal while chancing gears. You can
use the HiShift clutch button in main gear
lever instead.
Easy shuttling with HiTech Power Shuttle lever.
No need for clutch.
HITECH
Tip You can adjust sensitivity the power shuttle
with the adjustment knob for engaging speed
on the dashboard. This feature will adjusts
the smoothness of direction changes.
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A Series Quick Guide / HiTech

AutoTraction is a standard option with A4 HiTech models.
AutoTraction minimizes the use of Clutch pedal as you can
stop the tractor only by using the brakes.
AutoTraction is always active.
AutoTraction disengages the clutch if:
• both brake pedals are pressed
• the driving speed is less than 20 km/h
• the accelator pedal and clutch pedal have not been pressed
• the power shuttle lever is towards the same direction as the current driving direction
When you raise the brake pedals again, the traction will be re-engaged. So you can
do stop-and-go work without using clutch pedal. Note that you just need to have a
low-enough gear selected to make restarting possible.
AUTOTRACTION
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A Series Quick Guide / HiTech

With the engine speed memory you can easily use
a certain engine speed for example in PTO-use. You can
control the engine speed memory with the
button on the right side panel.
Setting and using engine RPM memory
1. Choose required engine RPM with accelator pedal or hand throttle
2. Press the engine RPM memory button for 3 seconds
You will hear a sound and a symbol in instrument panel will light up.
3. Turn the RPM memory on and off by pressing the
engine RPM memory button for 1 second
ENGINE
RPM MEMORY
1
2 3
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A Series Quick Guide / HiTech

In A4 series tractors you have an open centre hydraulics with
up to three auxiliary valves. The maximum hydraulic ow
is 65 l/min in models A74-A94 and 98 l/min in models
A104-A134.
1. Valves can be locked easily
- for constant ow or in neutral.
2. Additionally you can select an option of two
electronically controlled valves for front loader.
3. In models A104-A134 you get the maximum ow up to 98 l/min
by combining the ow of two pumps by a rocker switch in B-pillar.
Tip the tractor can be completed with a ow control valve. This valve will be controller
from the rear and it regulates the amount of oil available from the brown valve.
The remaining oil ow can be used at same time to power lift or other services.
With this device you can adjust the speed of a hydraulic motor or/and use
two functions simultanously. See number 2 in page “rear controls”.
HYDRAULICS
ADJUSTING REAR VALVES
2
3
1
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A Series Quick Guide / HiTech

A series tractor can be equipped with 2 speed PTO (all models)
or with 3 speed PTO (A 104-A134) according what is specied.
The PTO speed can be read always on the performance
monitor.
1. Rear PTO is turned on and off via rocker switch in right console.
2. In A74 – A94 speed selection is done with external control lever
and electrically from right console in bigger models.
3. In A104 - A134 the speed selection is done electrically from right side panel.
PTO SWITCH USE IN VALTRA A SERIES MODELS
• PTO Engaged – Push yellow lock button in front of switch.
• Disengaged – Neutral middle Position: power is cut but PTO shaft
free to rotate. Use this for machine run down and
implement attachment
• PTO Braked – Switch moved to rear. This position prevents PTO shaft rotation.
NOTE: PTO brake is not to be used to stop implement rotation!
REAR PTO
1
3
2
PTO engaged
PTO braked
PTO disengaged
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A Series Quick Guide / HiTech

1. Quick couplings of the auxiliary hydraulics
2. Flow control valve (optional)
3. Trailer Air Brake coupling (optional)
4. Top link
5. Trailer socket
6. Emergency stop plug for the rear power take-off (PTO)
7. Quick coupling of the hydraulic trailer brakes (optional)
8. Lift links of the pick-up hitch
9. Lift links
10. Levelling screw
11. Side limiter
12. Lower link
13. Power take-off (PTO) shaft
14. Pick-up hitch
REAR CONTROLS
AND CONNECTIONS
The pick-up hitch is optional
with many alternatives.
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A Series Quick Guide / HiTech

1. Push down the clutch pedal and start the engine.
2. Select the right PTO speed from
right hand console (A104-A134) or external lever (A74-A94).
3. Turn on PTO with a switch on right console
4. Set the speed you need with hand trottle or accelerator pedal,
PTO speed can be read in instrument panel.
5. Save engine revs into engine RPM memory
6. Set hand throttle to minimum (a Tip below)
7. Select the right gear and start working
Tip You can control your engine revs between idle and
working just with RPM memory button since you have set it.
PTO
WORK
2
1
3
2
4
5
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A Series Quick Guide / HiTech

FRONT LOADER
WORK WITH ELECTRONIC CONTROLS
1. Push down the clutch pedal and start the engine.
2. Switch on the front loader (safety switch on side pillar)
3. Switch on the SoftDrive if needed
4. Combine the hydraulic ow from two pumps
to increase the hydraulic ow
Tip To attatch and release implements, use hydraulic implement lock.
Push the rocker switch on B pillar and at the same time upper button
in joystick and move it to left or right.
Tip Remember the AutoTraction and power shuttle start features and
minimise your clutch pedal use.
Tip If you need long time oating position, e.g. in snow plowing, use
FL1. If you need only short times oat position, switch FL2 on. Then
you can engage oat with joystick’s lower button and disengage with
upper button.
3 4
1 2
Switch for continuous oating
position ON OFF (FL1)
Switch for oating position
activation (FL2)
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A Series Quick Guide / HiTech

FIELD
WORK
1. Push down the clutch pedal and start the engine.
2. Select the range A or B.
3. Switch 4WD and Differential Lock to ON position.
4. Select driving direction using the shuttle lever.
5. Press the accelerator pedal or the Hand throttle.
1
3
2
4
5 5
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A Series Quick Guide / HiTech