PDF Technical Manual CLAAS Atles 906 Tractor - 11 MB
This technical manual provides in-depth service and repair information for the CLAAS Atles 906 tractor.
It is designed for professional technicians and contains detailed specifications, troubleshooting procedures, and repair instructions.
The manual covers all major systems, including the engine, transmission, and hydraulics.
This is the definitive guide for complex diagnostics and repairs.
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--- Page 1 ---
A0
INJECTION SHEET CHECKING
PROCEDURE
A1
INJECTION FEED
A2
ENGINE TIER II
Chapter A
Atles 906 60 05 030 504 – 07.2006 publication
--- Page 3 ---
Test procedure
15. Hydraulic pressure
Check hydraulic pressure by referring to the appendix. Make sure that no hydraulic application is running. If hydraulic
pressure is not within the specifications, the PTO power test results will be affected. See "measurement and check points"
sheet.
16. Check the maximum no-load rpm
Atles 926/936: 2 275 ± 25.
17. Engage the PTO in the position shown on the injector instruction sheet.
18. Accelerate the engine to maximum rpm for 1 min.
19. Measure the power (see injector instruction sheet).
20. After measurement, check temperatures.
Engine: 90°C.
Transmission: 60-65°C (measure the temperature via the gauge recess using thermocouple probe n° 60 05 006 708).
Ambiant temperature: 25°C.
21. Leave the engine running at between 1 500 and 1 600 rpm for 3 to 5 minutes, then idle before
switching off.
If the results do not match the manufacturer's data following these operations, a flowmeter will need to be installed and the
values compared to the injection sheets.
22. Remove the viscous fan coupling locking tabs and refit the 4 lock nuts.
Only for Atles 926 and 936.
A0.6 Atles 906 – 07.2006 – GB
--- Page 4 ---
ENGINE TESTS AT PTO ATLES 946 – H 4552
Position 1 000 rpm
kW Power bhp
190 258
180 244
170 231
160 217 Reference values – Power Take-off position 1 000 rpm
150 204
140 190 Engine 10 0 0 12 0 0 14 0 0 16 0 0 18 0 0 2000 2200
130 177 S pe e d rpm
120 163 P o wer take-
478 574 670 765 861 957 10 5 2
110 150 o ff
100 136
90 123 kW 7 2 .0 10 3 .5 13 9 .1 15 9 .3 16 5 .7 16 3 .6 14 5 .4
80 109 P o we r* M inim um
70 96 bhp 97.9 140.7 189.1 216.6 225.3 222.4 197.7
60 82
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 rpm T o rque **
M inim um N.m 14 3 9 17 19 19 8 2 19 8 8 18 3 6 16 3 3 13 19
N.m Torque (po wer take-o ff o utput)
2200
M inim um 2 0 .3 2 7 .6 3 7 .0 4 4 .4 4 8 .7 5 1.1 4 9 .0
2000 C o ns um pt io n pe r ho ur l/h
M a xim um 2 3 .7 3 1.6 4 2 .2 4 9 .1 5 6 .5 5 9 .4 5 6 .6
1800
g/kW.h 249 236 237 249 263 279 292
S pe c if ic c o ns um pt io n*** M a xim um
1600
g/bhp.h 183 174 174 183 193 205 215
1400
1200 Engine tests at power take-off
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 rpm
P o wer Take-o ff (to tal reductio n)
l/h Consumption per hour Engine Gearbo x Rear axle
65 P o sitio n 540 P o sitio n 540 eco P o sitio n 1000 P o sitio n 1000 eco
60
B F 6 M 10 13 F C A G250 GP A 36 2 .6 0 2 .0 9
55
50 Idle No minal M ax no lo ad
R o t a t io n ra t e
45
P o wer
40 (rpm) Engine P o wer take-o ff Engine Engine P o wer take-o ff
take-o ff
35
540
30
P o wer take-
540 eco 8 16 Æ 884 3 14 Æ 340 2200 846 2250 Æ 2300 865 Æ 885
25
20
o ff po sitio n 10 0 0 8 16 Æ 884 390 Æ 423 2200 10 5 2 2250 Æ 2300 10 7 6 Æ 110 0
15 1 000 eco
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 rpm
To rque at P o wer take-o ff o utlet (N.m)
g/kW.h Specific consumption g/bhp.h * P o wer (W) = to rque (N.m) x speed (rad/s) ** Equivalent engine to rque (N.m) =
P o wer take-o ff reductio n
300 221
290 214 1bhp = 0.7355 kW
Ho urly co nsumptio n (l/h)x 1000 000 1rpm = 0.1047 rad/s
Injecto r flo w (mm³/sho t) =
280 206 Number o f engine cylinders x engine speed(rpm) x 30 1kW = 1.3596 bhp
1rad/s = 9.5510 rpm
270 199
Diesel fuel density = 850 mg/cm³
at 15 °C
260 191 *** Specific co nsumptio n Ho urly co nsumptio n (l/h) x diesel fuel density
(g/kW.h o r g/bhp,h) = P o wer (kW o r bhp)
250 184
240 177 maximum to rque – no minal speed to rque
To rque feedback (%) = x 100
no minal speed to rque
230 169
220 162
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 rpm
Atles 906 – 07.2006 – GB
--- Page 5 ---
Removal/refitting
Removing the single-point injection pump
EK Code EK Code EK Code EK Code
(mm) EP (mm) EP (mm) EP (mm) EP
145,35 335
145,375 336
145,4 337 146 361 146,6 385 147,2 409
145,425 338 146,025 362 146,625 386 147,225 410
145,45 339 146,05 363 146,65 387 147,25 411
145,475 340 146,075 364 146,675 388 147,275 412
145,5 341 146,1 365 146,7 389 147,3 413
145,525 342 146,125 366 146,725 390 147,325 414
145,55 343 146,15 367 146,75 391 147,35 415
145,575 344 146,175 368 146,775 392 147,375 416
145,6 345 146,2 369 146,8 393 147,4 417
146,625 346 146,225 370 146,825 394 147,425 418
145,65 347 146,25 371 146,85 395 147,45 419
145,675 348 146,275 372 146,875 396
145,7 349 146,3 373 146,9 397
145,725 350 146,325 374 146,925 398
145,75 351 146,35 375 146,95 399
145,775 352 146,375 376 146,975 400
145,8 353 146,4 377 147 401
145,825 354 146,425 378 147,025 402
145,85 355 146,45 379 147,05 403
145,875 356 146,475 380 147,075 404
145,9 357 146,5 381 147,1 405
145,925 358 146,525 382 147,125 406
145,95 359 146,55 383 147,15 407
146,975 360 146,575 384 147,175 408
Theoretical Theoretical Theoretical Theoretical
Shim thickness Shim thickness Shim thickness Shim thickness
thickness CT thickness CT thickness CT thickness CT
(mm) (mm) (mm) (mm)
(mm) (mm) (mm) (mm)
0,95 - 1,049 1 1,65 - 1,749 1,7 2,35 - 2,449 2,4 3,05 - 3,149 3,1
1,05 - 1,149 1,1 1,75 - 1,849 1,8 2,45 - 2,549 2,5 3,15 - 3,249 3,2
1,15 - 1,249 1,2 1,85 - 1,949 1,9 2,55 - 2,649 2,6 3,25 - 3,349 3,3
1,25 - 1,349 1,3 1,95 - 2,049 2 2,65 - 2,749 2,7 3,35 - 3,449 3,4
1,35 - 1,449 1,4 2,05 - 2,149 2,1 2,75 - 2,849 2,8 3,45 - 3,549 3,5
1,45 - 1,549 1,5 2,15 - 2,249 2,2 2,85 - 2,949 2,9 3,55 - 3,649 3,6
1,55 - 1,649 1,6 2,25 - 2,349 2,3 2,95 - 3,049 3 3,65 - 3,749 3,7
A1.10 Atles 906 – 09.2004 – GB
--- Page 6 ---
Checks/Adjustments
Checking compression
2 1
N.B.: before starting the test, make sure that the
battery is fully charged and that the injector area is
perfectly clean.
– Start the engine and run it at idle speed during 10
to 15 minutes.
– Remove the injectors using special tool
n° 60 05 005 590 mounted on an extractor.
– Fit tool n° 60 05 005 586 with the seal on a
compression tester (Fig. 10).
– Unplug the electrical connector from the engine speed
sensor (see chapter "A1").
– Turn the engine using the starter motor during a few
seconds. Compression must be between 30
and 38 bar. The difference in compression between
each cylinder must be less than 5 bar. Check at
131hsm02 Fig. 9
crankshaft minimal speed at 150 rpm when cold
or 200 rpm when hot.
Check of engine oil
pressure
Before checking the pressure, run the engine.
– Connect pressure gauge n° 77 01 388 204 to the
engine block (Fig. 11).
Engine lubrication pressure when cold:
850 rpm = 2,1 bar.
1 000 rpm = 2,6 bar.
2 000 rpm = 3,8 bar.
Engine lubrication pressure at service temperature (125°):
850 rpm = 0,9 bar.
1 000 rpm = 1,2 bar. 6005005586 Fig. 10
2 000 rpm = 2,0 bar.
221hsm19 Fig. 11
A2.8 Atles 906 – 09.2004 – GB
--- Page 7 ---
Removal/refitting
37. Measure the connecting rod bearings at points "1"
and "2" on axes "a" and "b" (Fig. 33).
– Measure the diameter of the connecting rod bearing:
mm.
Bearing clearance wear limit: 0,12 mm.
Replace the connecting rod bearings if necessary. Refer
to the "Dimensional specifications" at the beginning of this
chapter for the other dimensions.
Position the connecting rod cap correctly according to the
identification number.
N.B.: Make sure that the circlips are fitted.
38. Put together the connecting rod-piston assembly.
N.B.: Make sure that the "flywheel" symbols are on
the same side and the circlip gaps are facing towards
the piston top.
131hsm25 Fig. 36
Checking the ring grooves
39. Measure the dimensions with a set of feeler gauges
(Fig. 37). Compare with the following wear limit values:
– Ring (1): 0,8 mm.
– Ring (2): 2,5 mm.
– Ring (3): 1,15 mm.
Replace the rings if necessary.
40. Check the positioning of the rings on refitting.
– Keystone ring (1).
– "Top" bevelled ring facing the combusion chamber (2).
– Double-chamfer oil ring (3).
N.B.: Observe the ring spacing.
Checking the piston pin/connecting rod
diameter
41. Check piston pin wear. 121hsm35 Fig. 37
Piston pin diameter: 42 mm.
131hsm24 Fig. 38
A2.18 Atles 906 – 09.2004 – GB
--- Page 8 ---
Notes
A2.28 Atles 906 – 09.2004 – GB
--- Page 9 ---
B1
GBA 32 FULL POWERSHIFT GEARBOX
Atles 906 – 09.2004 – GB
--- Page 10 ---
General
Power transmission path in gear R7 (7th reverse gear)
L L M 5th
K
C E
1 C 4th
J H
B F
R D 3rd
I
A G
2 B 2nd
A 1st
N
H P 6th
O
M Q 7th
324hsm07 Fig. 7
Atles 906 – 09.2004 – GB B1.11
--- Page 11 ---
Introduction to the GBA 32
Left side
10 B D C
6
5
9
11 7 F E 4
8
324hsm13 Fig. 3
Atles 906 – 09.2004 – GB B2.5
--- Page 12 ---
GBA 32 measurement and checking points
Electrical check on the solenoids
If the pressure is incorrect on a clutch, check the power – Put into gear - the current should be 0,66 A*.
supply and resistance of the solenoid valve: – With the power off, connect a multimeter (ohmmeter
– With the solenoid valve live, connect clamp-on function) between the 2 solenoid valve terminals.
ammeter n° 60 05 006 707 with multimeter – The resistance should be 10 ohms.
n° 60 05 006 744 (ammeter function) to the solenoid – If the solenoid power and resistance values are correct,
valve supply cable. replace the solenoid valve (mechanical failure).
324hsm33 Fig. 23
* Important: Even in neutral, the solenoid valve receives a current of 0,10 A.
Atles 906 – 09.2004 – GB B2.15
--- Page 13 ---
LS 110 l/min measurement and checking points
Test conditions.
– Engine at nominal speed.
– Oil temperature at 60°C.
Lubrication pressure check
– Connect tester n° 60 05 705 076 to pressure coupling (A) on the right-hand cover.
– The pressure should be 6,3 ± 1 bar (5,2 ± 1 bar at 1 000 rpm).
A
391hsm55 Fig. 32
Checking the control pressure
– Connect tester n° 60 05 705 076 to pressure coupling (B) on the right-hand cover.
– The pressure should be 17 bar.
B
391hsm57 Fig. 33
Atles 906 – 09.2004 – GB B2.25
--- Page 14 ---
Reconditioning: Gearbox (AG 250)
Casing separators
11
12 13
6
10
4th
7th
6th
5th
9
7
5
1st
3rd
2nd
8
6
3
4
2
1
324hsm38 Fig. 1
Atles 906 – 07.2006 – GB B3.5
--- Page 15 ---
Reconditioning: Gearbox (AG 250)
Replacing the bearings
– Position an inner extractor on the ring concerned.
– Remove the ring.
324hsm51 Fig. 15
– Respect the direction of assembly of the ring.
– Lubricate the ring.
– Press home the ring by tapping lightly on a tool suited
to the inner and outer diameter of the ring.
Important: Take care to line up the holes in the ring
with the housing oil holes.
324hsm52 Fig. 16
324hsm53 Fig. 17
Atles 906 – 07.2006 – GB B3.15
--- Page 16 ---
Reconditioning: Gearbox (AG 250)
Important: To remove pinions use kit 00 11 327 080 in
order to not start cracking their teeth.
– Position tool "G4" of kit 00 11 327 080 on the pinion (A) G4
of clutch "L".
– Assemble and tighten tool "G1" on tool "G4".
– Position a bearing-puller with 2 threaded rods with a
diameter of 14 x 200.
– Remove the pinion (A) with the bearing (B).
– Check for the presence of the o-ring (C) on the pinion.
B A
324hsm70 Fig. 41
B
A
C
324hsm71 Fig. 42
– Withdraw the locking ring (A).
– Recover the closing plate, the discs, and the backing
plates.
A
324hsm72 Fig. 43
Atles 906 – 07.2006 – GB B3.25
--- Page 17 ---
C1 – GPA 30 REAR AXLE
C2 – SERVICE BRAKE AND
HANDBRAKE
C3 – PARK LOCK
Chapter C
Atles 906 60 05 030 504 – 09.2004 publication
--- Page 18 ---
Tightening torques and main adjustments
7" differential Composite axle tubes
±5
45 daN.m ± 0,20
Scelbloc (648) 0,40 mm
Frenbloc (270)
± 1,5 ± 0,10 ±2
± 0,05 12 daN.m 0,35 mm 30 daN.m
0,10 mm
Frenbloc (270) Frenbloc (270)
±4
31 daN.m 0,07 ± 0,05 mm
Frenetanch (242)
342hsm0p Fig. 6
Double reduction axle tubes
± 0,5
3 daN.m
Frenbloc (270)
±1
± 0,05 12 daN.m
Scelbloc (648) 0,07 mm
Frenbloc (270)
11,5 ± 1,5 daN.m Scelbloc (648)