XERION 3300 Technical Systems Hydraulic System
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Content 410 Content 1 Overall hydraulic system Overall circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Overall circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Key to diagram . . . . . . . . . . .
Content 410 4 000 293 646 0 - SYS-H XERION 3300 - 04/05
1 Overall hydraulic system Overall circuit diagram 387 1 Overall hydraulic system Overall circuit diagram 000 293 646 0 - SYS-H XERION 3300 - 04/05 5
1 Overall hydraulic system Overall circuit diagram 387 Circuit diagram 323-1 323-2 408 400996 6 000 293 646 0 - SYS-H XERION 3300 - 04/05
1 Overall hydraulic system Overall circuit diagram 391 1 Overall hydraulic system Overall circuit diagram Key to diagram Item Component I Main valve block II Cab valve block III Distributor block IV Orbitrol steering valve V Steering sense valve VI EHL valve block – Electro-hydraulic steering VII Main brake valve VIII Working hydraulics variable-displacement pump IX Steering hydraulics variable-displacement pump - - 102-1 Working hydraulics pressure filter 102-2 Steering hydraulics
1 Overall hydraulic system Overall circuit diagram 391 8 Item Component 3007-2b Service brake hydraulic cylinder 3008 Parking brake hydraulic cylinder 3009 Floating axle lock hydraulic cylinder 3010 Cab raise/lower hydraulic cylinder 3011 Unlock cab hydraulic cylinder 3012 Rear power lift hydraulic cylinder 3013 Front power lift hydraulic cylinder 3014 Swing lower link hydraulic cylinder - - 406 Orifice plate F (Ø 0.8 mm) 414 Orifice plate F (Ø 3.
1 Overall hydraulic system Overall circuit diagram 391 Item Component 772-1b Volume flow controller (red B) 772-2a Volume flow controller (EHR A) 772-2b Volume flow controller (EHR B) 772-3a Volume flow controller (white A) 772-3b Volume flow controller (white B) 772-4a Volume flow controller (yellow A) 772-4b Volume flow controller (yellow B) 772-5a Volume flow controller (green A) 772-5b Volume flow controller (green B) 772-6a Volume flow controller (swing lower link A) 772-6b Volu
1 Overall hydraulic system Overall circuit diagram 391 Item Component 801-16 Quick-release coupling (green A rear) 801-17 Quick-release coupling (green B rear) 801-18 Quick-release coupling (green B front) - - B123 Hydraulic oil temperature - - Y106 Parking brake solenoid valve Y188-1 Steering logics shut-off valve solenoid valve Y188-2 Steering logics shut-off valve solenoid valve Y188-3 Steering logics shut-off valve solenoid valve Y188-4 Steering logics shut-off valve solenoid val
1 Overall hydraulic system Overall circuit diagram 391 Item Component Y198-4a Pilot valve solenoid valve (yellow A) Y198-4b Pilot valve solenoid valve (yellow B) Y198-5a Pilot valve solenoid valve (green A) Y198-5b Pilot valve solenoid valve (green B) Y198-6a Pilot valve solenoid valve (swing lower link A) Y198-6b Pilot valve solenoid valve (swing lower link B) - - Z12 Parking brake actual value switch Z19 Hydraulic oil level (min.
1 Overall hydraulic system PFC pump 391 PFC pump Compensating valve 772 7 6 773 AA DD BB LL 10 13 12 11 401482 Item Component 6 Compensating valve 7 Input (load pressure from signal network) 10 Working hydraulics pump port 11 Port of control piston of working hydraulics pump 12 Tank port 13 Restrictor 772 Volume flow controller 773 Pressure controller - - AA Oil supply BB Pressure-reduced oil DD Control oil LL Tank (pressureless) 12 000 293 646 0 - SYS-H XERION 3300 -
1 Overall hydraulic system PFC pump 391 Description of function The PFC pump (2) is an axial piston pump. PFC means: – P (Pressure) – F (Flow) – C (Controlled) PFC pump The compression spring of the volume flow controller (772) is designed so that the pump pressure acting on the face end is always 20 bar above the load pressure acting via port (7). This pressure of 20 bar is referred to as "Margin pressure".
1 Overall hydraulic system PFC pump 391 Initial position (engine OFF) 7 6 772 21 377 15 20 2 16 19 LL 401483 18 Item Component 2 (PFC) Pump 6 Compensating valve 7 Input (load pressure from signal network) 14 Control piston 15 Control spring 16 Pump drive 17 Swash plate 18 Ram 19 Pump inlet 20 Pump outlet 21 Compression spring (margin pressure) 377 Hydraulic cylinder variable-displacement pump 772 Volume flow controller 14 17 000 293 646 0 - SYS-H XERION 3300 - 04/05
1 Overall hydraulic system PFC pump 391 Initial position Since the engine has been shut down, there is no pressure in the hydraulic system. The compression spring (21) has pushed the volume flow controller (772) to the right. In this position, the top side of the variable-displacement pump hydraulic cylinder (377) is connected with the tank via the volume flow controller (772). The control spring (15) has swivelled the swash plate (17) to its maximum position.
1 Overall hydraulic system PFC pump 391 Low-pressure standby 7 772 21 377 15 2 20 401484 AA DD BB LL Item Component 2 (PFC) Pump 6 Compensating valve 7 Input (load pressure from signal network) 14 Control piston 15 Control spring 17 Swash plate 20 Pump outlet 21 Compression spring (margin pressure) 25 Control edge 377 Hydraulic cylinder variable-displacement pump 772 Volume flow controller - - AA Oil supply BB Pressure-reduced oil DD Control oil LL Tank (pressurele
1 Overall hydraulic system PFC pump 391 Description of function All control units are in their neutral position. At the beginning of this example, the swash plate (17) is in its maximum end position (see also Engine OFF). When the engine is started, the pump feeds the maximum volume flow via the pump output (20) up to the spools of all control units.
1 Overall hydraulic system PFC pump 391 Pump starts pumping 7 6 772 21 377 15 2 20 AA DD BB LL 401485 Item Component 2 (PFC) pump 6 Compensating valve 7 Input (load pressure from signal network) 14 Control piston 15 Control spring 17 Swash plate 20 Pump outlet 21 Compression spring (margin pressure) 25 Control edge 377 Variable-displacement pump hydraulic cylinder 772 Volume flow controller - - AA Oil supply BB Pressure-reduced oil DD Control oil LL Tank (pressure
1 Overall hydraulic system PFC pump 391 Description of function When a control unit is actuated, a load pressure builds up in the LS line. In this process, the following conditions result at the volume flow controller (772): – the pump pressure acts on the right face end – the load pressure and the spring force of the compression spring (margin pressure) (21) act in the spring space.
1 Overall hydraulic system PFC pump 391 Constant volume flow 22 7 6 772 21 377 15 2 20 401486 AA DD BB LL Item Component 2 (PFC) Pump 6 Compensating valve 7 Input (load pressure from signal network) 14 Control piston 15 Control spring 17 Swash plate 20 Pump outlet 21 Compression spring (margin pressure) 22 Setscrew 25 Control edge 377 Variable-displacement pump hydraulic cylinder 772 Volume flow controller - - AA Oil supply BB Pressure-reduced oil DD Control oil
1 Overall hydraulic system PFC pump 391 Description of function When operating a consumer with a constant load (e.g. a hydraulic motor), the volume flow controller (772) is actuated to a stable position. This keeps both the pressure on the top face of the variable-displacement pump hydraulic cylinder (377) and the position of the swash plate (17) constant. As long as the position of the swash plate (17) remains unchanged, the pump pumps a constant volume flow.
1 Overall hydraulic system PFC pump 391 Downstroking the PFC pump 7 6 21 772 377 15 2 20 AA DD BB LL 401487 Item Component 2 (PFC) Pump 6 Compensating valve 7 Input (load pressure from signal network) 14 Control piston 15 Control spring 17 Swash plate 20 Pump outlet 21 Compression spring (margin pressure) 22 Setscrew 25 Control edge 377 Variable-displacement pump hydraulic cylinder 772 Volume flow controller - - AA Oil supply BB Pressure-reduced oil DD Control oil
1 Overall hydraulic system PFC pump 391 Description of function Downstroking of the PFC pump is performed under the following conditions: – ·a control unit is actuated to neutral position, no volume flow is required. – ·an additional control unit is actuated into the fine control range, a very small volume flow is required. – ·in parallel operation, a control unit is actuated to the neutral position or to the fine control range. A smaller volume flow is required.
1 Overall hydraulic system PFC pump 391 Maximum pressure limitation (pressure relief valve function), maximum standby pressure 7 6 21 772 773 23 24 337 15 2 20 AA DD BB LL 401488 Item Component 2 (PFC) Pump 6 Compensating valve 7 Input (load pressure from signal network) 15 Control spring 17 Swash plate 20 Pump outlet 21 Compression spring (margin pressure) 22 Setscrew 26 Control edge 377 Variable-displacement pump hydraulic cylinder 772 Volume flow controller 773 Press
1 Overall hydraulic system PFC pump 391 Description of function The pressure in the hydraulic system is limited to 200 ± 5 bar in order to prevent component damage. This function is ensured by pressure controller (773).During normal operation (working pressure < max. pressure), the pressure controller (773) is pushed to the right by compression spring (24). Under such pressure conditions: – ·the volume flow controller (772) is pushed to the right by compression spring (21).
1 Overall hydraulic system PFC pump 391 26 000 293 646 0 - SYS-H XERION 3300 - 04/05
2 Steering hydraulics System concept 413 2 Steering hydraulics System concept Description The vehicle is equipped with an EHL steering system. EHL is the German abbreviation of "Electro-hydraulic steering". The electro-hydraulic steering system EHL is an electro-hydraulically controlled, intelligent automatic steering system for the rigid axle (2).The floating axle (1) located at the front in direction of travel is steered manually by the steering wheel as usual.
2 Steering hydraulics System concept 413 Definition of axles The floating axle (1) is always located below the engine, regardless of the cab position. 1 = Floating axle 2 = Rigid axle 1 = Floating axle 2 = Rigid axle Fully automatic steering operation. Special steering programs In the special steering programs (e.g. Autopilot, crab steer mode), the front and the rear axle are steered by electro-hydraulic means. These special steering programs are available only for fieldwork.
2 Steering hydraulics System concept 413 Adjusting the straight-line stability of the rigid axle (2). When "Emergency steering operation" is started, the current wheel position of the rigid axle (2) is adopted. Straight-line stability may not be provided. In this case: – Open the shut-off valve (641) – Set the rigid axle (2) to straight-line travel, using the steering wheel – Close the shut-off valve (641) again.
2 Steering hydraulics System concept 413 30 000 293 646 0 - SYS-H XERION 3300 - 04/05
2 Steering hydraulics Fully hydraulic steering (Emergency steering) 417 2 Steering hydraulics Fully hydraulic steering (Emergency steering) 000 293 646 0 - SYS-H XERION 3300 - 04/05 31
2 Steering hydraulics Fully hydraulic steering (Emergency steering) 417 Circuit diagram 408 40bar 30bar 30bar 30bar 786 40bar 3,5mm 32 000 293 646 0 - SYS-H XERION 3300 - 04/05
2 Steering hydraulics Fully hydraulic steering (Emergency steering) 395 2 Steering Fully hydraulic hydraulics steering (Emergency steering) Key to diagram Item Component I Main valve block IX Steering / brake hydraulics pump - - 102 Pressure filter 107 Oil drain 112 Return filter 113 Suction filter 116 Resonance tube (Silencer) 117 Fresh air filter element - - 218 Steering hydraulics pump 245 Emergency steering pump - - 323-1 Floating axle steering hydraulic cylinder 323-2 Ri
2 Steering hydraulics Fully hydraulic steering (Emergency steering) 395 Item Component 772 Volume flow controller 773 Pressure controller 773 Pressure controller 774 Pressurizing valve 780 Shuttle valve 783 Trailer brake valve 786 LS signal shuttle valve - - 909-1 Steering hydraulics Orbitrol measuring point 909-2 Steering hydraulics emergency steering pump measuring point 909-4 Steering hydraulics steering cylinder XS1 measuring point 909-5 Steering hydraulics steering cylinder XS
2 Steering hydraulics Fully hydraulic steering (Emergency steering) 395 Item Component Z19 Hydraulic oil level (min.
2 Steering hydraulics Fully hydraulic steering (Emergency steering) 395 36 000 293 646 0 - SYS-H XERION 3300 - 04/05
2 Steering hydraulics Orbitrol axle = Floating axle (1), the rigid axle (2) is tracked by electro-hydraulic means 397 2 Steering hydraulics Orbitrol axle = Floating axle (1), the rigid axle (2) is tracked by electro-hydraulic means 000 293 646 0 - SYS-H XERION 3300 - 04/05 37
2 Steering hydraulics Orbitrol axle = Floating axle (1), the rigid axle (2) is tracked by electro-hydraulic means 397 Circuit diagram 408 40bar 30bar 30bar 30bar 786 40bar 3,5mm Xer-h-02a-2 38 000 293 646 0 - SYS-H XERION 3300 - 04/05
2 Steering hydraulics Orbitrol axle = Floating axle (1), the rigid axle (2) is tracked by electro-hydraulic means 398 2 Steering hydraulics Orbitrol axle = Floating axle (1), the rigid axle (2) is tracked by electro-hydraulic means Key to diagram Item Component I Main valve block IX Steering / brake hydraulics pump - - 102 Pressure filter 107 Oil drain 112 Return filter 113 Suction filter 116 Resonance tube (Silencer) 117 Fresh air filter element - - 218 Steering hydraulics pump 245
2 Steering hydraulics Orbitrol axle = Floating axle (1), the rigid axle (2) is tracked by electro-hydraulic means 398 Item Component 772 Volume flow controller 773 Pressure controller 773 Pressure controller 774 Pressurizing valve 780 Shuttle valve 783 Trailer brake valve 786 LS signal shuttle valve - - 909-1 Steering hydraulics Orbitrol measuring point 909-2 Steering hydraulics emergency steering pump measuring point 909-4 Steering hydraulics steering cylinder XS1 measuring point 9
2 Steering hydraulics Orbitrol axle = Floating axle (1), the rigid axle (2) is tracked by electro-hydraulic means 398 Item Component Z81 Service brake pressure actual value switch Z102 Filter bypass actual value switch (bypass open) Z103 Pump function actual value switch Z104 Brake accumulator pressure actual value switch 000 293 646 0 - SYS-H XERION 3300 - 04/05 41
2 Steering hydraulics Orbitrol axle = Floating axle (1), the rigid axle (2) is tracked by electro-hydraulic means 398 42 000 293 646 0 - SYS-H XERION 3300 - 04/05
2 Steering hydraulics Orbitrol axle = Rigid axle (2), the floating axle (1) is tracked by electro-hydraulic means 399 2 Steering hydraulics Orbitrol axle = Rigid axle (2), the floating axle (1) is tracked by electro-hydraulic means 000 293 646 0 - SYS-H XERION 3300 - 04/05 43
2 Steering hydraulics Orbitrol axle = Rigid axle (2), the floating axle (1) is tracked by electro-hydraulic means 399 Circuit diagram 408 40bar 30bar 30bar 30bar 40bar 3,5mm xer-h-02a-3 44 000 293 646 0 - SYS-H XERION 3300 - 04/05
2 Steering hydraulics Orbitrol axle = Rigid axle (2), the floating axle (1) is tracked by electro-hydraulic means 400 2 Steering Orbitrol axle hydraulics = Rigid axle (2), the floating axle (1) is tracked by electro-hydraulic means Key to diagram Item Component I Main valve block IX Steering / brake hydraulics pump - - 102 Pressure filter 107 Oil drain 112 Return filter 113 Suction filter 116 Resonance tube (Silencer) 117 Fresh air filter element - - 218 Steering hydraulics pump 245
2 Steering hydraulics Orbitrol axle = Rigid axle (2), the floating axle (1) is tracked by electro-hydraulic means 400 Item Component 772 Volume flow controller 773 Pressure controller 773 Pressure controller 774 Pressurizing valve 780 Shuttle valve 783 Trailer brake valve 786 LS signal shuttle valve - - 909-1 Steering hydraulics Orbitrol measuring point 909-2 Steering hydraulics emergency steering pump measuring point 909-4 Steering hydraulics steering cylinder XS1 measuring point 9
2 Steering hydraulics Orbitrol axle = Rigid axle (2), the floating axle (1) is tracked by electro-hydraulic means 400 Item Component Z19 Hydraulic oil level (min.
2 Steering hydraulics Orbitrol axle = Rigid axle (2), the floating axle (1) is tracked by electro-hydraulic means 400 48 000 293 646 0 - SYS-H XERION 3300 - 04/05
2 Steering hydraulics The floating axle (1) and the rigid axle (2) are steered electro-hydraulically – the Orbitrol steering circuit is closed. 401 2 Steering hydraulics The floating axle (1) and the rigid axle (2) are steered electrohydraulically – the Orbitrol steering circuit is closed.
2 Steering hydraulics The floating axle (1) and the rigid axle (2) are steered electro-hydraulically – the Orbitrol steering circuit is closed.
2 Steering hydraulics The floating axle (1) and the rigid axle (2) are steered electro-hydraulically – the Orbitrol steering circuit is closed. 402 2 Steering The floating hydraulics axle (1) and the rigid axle (2) are steered electro-hydraulically – the Orbitrol steering circuit is closed.
2 Steering hydraulics The floating axle (1) and the rigid axle (2) are steered electro-hydraulically – the Orbitrol steering circuit is closed.
2 Steering hydraulics The floating axle (1) and the rigid axle (2) are steered electro-hydraulically – the Orbitrol steering circuit is closed. 402 Item Component Z19 Hydraulic oil level (min.
2 Steering hydraulics The floating axle (1) and the rigid axle (2) are steered electro-hydraulically – the Orbitrol steering circuit is closed.
2 Steering hydraulics Steering valve VI 403 2 Steering hydraulics Steering valve VI 000 293 646 0 - SYS-H XERION 3300 - 04/05 55
2 Steering hydraulics Steering valve VI 403 Graphics 909-2(XP-NLP) Y190-1a 909-1(XP-Orb) Y190-2a 772 3.2A BL/L 3.2A P-Orb 3.1A 641(1.11) 909-7(P1) 3.2B 3.1A 3.1B 3.1B 909-6(P2) 3.1A 3.2A 3.1 Y188-2(DV2) Y190-1b Y190-2b VI BR T 706 LS 3.2B Y188-3(DV3) Y188-10(DV10) Y188-8(DV8) AR/R 725-2 19.
2 Steering hydraulics Steering valve VI 404 2 Steering Steering valve hydraulics VI Key to diagram Item Component VI Steering valve - - 116 Resonance tube (Silencer) - - 245 Emergency steering pump - - 641 Shut-off valve - - 706 Pressure relief valve 725 Steering double shock valve 726 Steering pressure relief valve 732 Non-return valve 763 Input pressure balance 768 LS signal shuttle valve 772 Volume flow controller 774 Pressurizing valve - - 909-1 Steering hydraulics
2 Steering hydraulics Steering valve VI 404 Item Component Y189-10 Steering logics definition valve solenoid coil Y190-1a Automatic steering solenoid coil Y190-1b Automatic steering solenoid coil Y190-2a Automatic steering solenoid coil Y190-2b Automatic steering solenoid coil 58 000 293 646 0 - SYS-H XERION 3300 - 04/05
3 Working hydraulics Working hydraulics circuit diagram 405 3 Working hydraulics Working hydraulics circuit diagram 000 293 646 0 - SYS-H XERION 3300 - 04/05 59
3 Working hydraulics Working hydraulics circuit diagram 405 XP-PA Circuit diagram 50bar 100bar 60 000 293 646 0 - SYS-H XERION 3300 - 04/05
3 Working hydraulics Working hydraulics circuit diagram 406 3 Working Working hydraulics hydraulics circuit diagram Key to diagram Item Component I Main valve block - - 102-1 Working hydraulics pressure filter - - 515 Pressure accumulator - - 704 Bypass valve (non-return valve) 706 Pressure relief valve 768 LS signal shuttle valve 772-1a Volume flow controller (red A) 772-1b Volume flow controller (red B) 772-2a Volume flow controller (EHR A) 772-2b Volume flow controller (EHR B)
3 Working hydraulics Working hydraulics circuit diagram 406 Item Component Y198-4a Pilot valve (yellow A) Y198-4b Pilot valve (yellow B) Y198-5a Pilot valve (green A) Y198-5b Pilot valve (green B) Y198-6a Pilot valve (blue A) Y198-6b Pilot valve (blue B) - - Z102-1 Working hydraulics filter bypass actual value switch (bypass open) Z105-1 Floating axle lock 55 bar pressure Z105-2 Floating axle lock 115 bar pressure 62 000 293 646 0 - SYS-H XERION 3300 - 04/05
3 Working hydraulics Main valve block 407 3 Working hydraulics Main valve block 000 293 646 0 - SYS-H XERION 3300 - 04/05 63
3 Working hydraulics Main valve block 407 Graphics 515 (40 bar) XP-A Z102-1 LS Z102-2 XP-T-Orb 515 (80 bar) 909-3 XP-L 515 (40 bar) (XP-L) 515 (80 bar) 901 (XP-A) Z102-2 Z102-1 20.1 20.2 924 20.3 (XP-LS) 20.4 706 XP-PA 924 (XP-T) 20.5 102-1 Y192 20.6 Y121 Y193 20.5 Z105-1 Z105-2 20.4 102-2 785 20.3 20.2 421 20.
3 Working hydraulics Main valve block 408 3 Working Main valve hydraulics block Key to diagram Item Component I Main valve block - - 102-1 Working hydraulics pressure filter - - 515 Pressure accumulator - - 704 Bypass valve (non-return valve) 706 Pressure relief valve 768 LS signal shuttle valve 772-1a Volume flow controller (red A) 772-1b Volume flow controller (red B) 772-2a Volume flow controller (EHR A) 772-2b Volume flow controller (EHR B) 772-3a Volume flow controller (wh
3 Working hydraulics Main valve block 408 Item Component Y198-3b Pilot valve (white B) Y198-4a Pilot valve (yellow A) Y198-4b Pilot valve (yellow B) Y198-5a Pilot valve (green A) Y198-5b Pilot valve (green B) Y198-6a Pilot valve (blue A) Y198-6b Pilot valve (blue B) - - Z102-1 Working hydraulics filter bypass actual value switch (bypass open) Z105-1 Floating axle lock 55 bar pressure Z105-2 Floating axle lock 115 bar pressure 66 000 293 646 0 - SYS-H XERION 3300 - 04/05
411 Following the policy of CLAAS KGaA mbH to improve their products as technical developments continue, CLAAS reserve the right to make alterations which must not necessarily correspond to text and illustrations contained in this publication, and without incurring obligation to alter any machines previously delivered.Technical data, dimensions and weights are given as an indication only. Responsibility for errors and omissions not accepted.
CLAAS KGaA mbH Postfach 1163 33426 Harsewinkel Tel. +49 (0)5247 12-0 www.claas.
