Claas Lexion 470, Lexion 420 Service Manual
LEXION 470 - 420 Montana
Technical
Systems
Electric/Hydraulic
System
Supplement
Electric System LEXION-Montana TIC
TIC LEXION-Montana Electric System
The present document exclusively describes all special electric and hydraulic
functions of the LEXION Montana series.
Explanations and descriptions concerning the basic machine and the front attachments
can be found in the relevant Electric System (297 550.x) and Hydraulic System
(297 549.x) documents.
D-S - Central terminal compartment on Montana machines 014 501.0
(with RIO module A50) ................................................................................. ZE-s-2
D-S - Central terminal compartment on Montana machines 014 501.0
(with HBM module A45) ............................................................................... ZE-s-4
Module A35 - Montana control unit, for Montana machines
(with RIO module A50) ................................................................................. ZE-s-9
Module A35 - Montana control unit, for Montana machines
(with HBM module A45) ............................................................................. ZE-s-10
Module A36 - Montana gearshift module.................................................................. ZE-s-11
Module A45 - Ground drive hydraulic motor brake restrictor (HBM) ......................... ZE-s-12
Module A50 - Montana RIO module ......................................................................... ZE-s-12
01s - Main power supply, diesel engine electric starting motor,
for Montana machines.................................................................................... 01s-2
02s - Starting the diesel engine, diesel engine speed adjustment
- for Montana machines.................................................................................. 02s-2
04s - Road travel activation, working hydraulics master valve,
for Montana machines with module A50 (RIO)............................................... 04s-2
04t - Road travel activation, working hydraulics master valve,
for Montana machines with module A45 (HBM) ..............................................04t-2
05s - Terminal, keyboard, rotary switch, printer,
for Montana machines with module A50 (RIO)............................................... 05s-2
05t - Terminal, keyboard, rotary switch, printer,
for Montana machines with module A45 (HBM) ..............................................05t-2
06s - CAN bus, module power supply,
for Montana machines with module A50 (RIO)............................................... 06s-2
06t - CAN bus, module power supply,
for Montana machines with module A45 (HBM) ..............................................06t-2
Electric System LEXION-Montana TIC
TIC LEXION-Montana Electric System
17s - Front attachment drive, reverser drive for Montana machines ....................... 17s-2
20s - Raise / lower front attachment, cross levelling – for Montana machines........ 20s-2
26s - Machine monitoring, for Montana machines................................................... 26s-2
41s - Axle control system and front attachment control system,
for Montana machines with module A50 (RIO)............................................... 41s-2
41t - Axle control system and front attachment control system,
for Montana machines with module A45 (HBM) ..............................................41t-2
42s - Ground drive and brake control,
for Montana machines with module A50 (RIO)............................................... 42s-2
42t - Ground drive and brake control,
for Montana machines with module A45 (HBM) ..............................................42t-2
Index .................................................................................................................... Index-3
Electric System LEXION-Montana TIC
D-S
Central terminal compartment
014 501.0
Montana (with RIO module A50)
Electric System LEXION Montana TIC
D-S - Central terminal compartment on Montana machines
014 501.0 (with RIO module A50)
ZE-s-2 Lex-e-ZE 03/04
D-S
Central terminal compartment
014 501.0
Montana (with HBM module A45)
Electric System LEXION Montana TIC
D-S - Central terminal compartment on Montana machines
014 501.0 (with HBM module A45)
ZE-s-4 Lex-e-ZE 03/04
TIC LEXION Montana Electric System
Key to diagram:
A08 AUTOCONTOUR module (CAC)
A09 AUTOPILOT module
A10 Fieldwork computer module (BIF/CAB)
A12 Speed monitor module (DZW)
A16 Reel controller module (HAS)
A21 YIELD METER module (LEM)
A25 Sieve adjustment module
A26 Deflector adjustment module
A28 Uni-spreader module (VGS)
A36 Electro-hydraulic gearshift module
A45 Ground drive hydraulic motor brake restrictor module (HBM)
A50 RIO module (ground drive hydraulic motor brake restrictor)
DI Warning device diode PCB
D0 Master valve diode PCB
DS Diagnosis (63-pin) VIA
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
F13
F14
F15
F16
F17
F18
F19
F20
F21
F22
F23
F24
F25
F26
F27
F28
F29
F30
F31
F32
F33
F34
F35
Modules
Electronic components
Fuses
Dipped headlights circuit
Sieve adjustment module 12 V control unit
CAN connection of performance monitor
+12 V electronic unit
12 V air conditioner fan
##
CAC module
Reel module
Yield meter
Yield meter
Inside work lights
Work lights
Cigarette lighter
Seat socket
Drum/rotor speed adjustment
Concave adjustment
Diagnosis LED
Cutterbar
Engine speed switch
All-wheel drive 12 V switch
Threshing mechanism relay
Fan speed relay
Hazard warning switch 30
Hazard warning switch 15
Fan speed relay
Reel controller
Upper/lower sieve
Autopilot switch
12 V / K56 pin 30
Brake light switch 12 V / Sieve pan light
12 V IMO
12 V IMO
Air conditioner relay
Engine control unit 12 V power supply
CAC module / VGS module
03/04 Lex-e-ZE ZE-s-5
Electric System LEXION Montana TIC
Key to diagram:
Fuses
F36
Grain tank extension
12 V grain tank drive
F37
F38
Work light
F39
Chopper On/Off pushbutton
F40
Vehicle lighting switch 12 V
F41
Warning beacon
12 V horn / wiper and washer system
F42
F43
Position light, left-hand
F44
Position light, right-hand
F45
Left-hand full beam relay
F46
Left-hand dipped beam relay
F47
Right-hand full beam relay
Right-hand dipped beam relay
F48
F49
Table adjustment
F50
Grain tank extension
F51
Ignition diagnosis plug
F52
Instrument lighting
F53
Returns lighting
Uni-spreader/Autopilot module
F54
F55
Worklight switch
F56
Spare module
F57
Spare module
F58
Spare (connector H)
Engine diagnosis
F59
F60
12 V sockets LP/HP
F61
###
F62
Outside railing worklights relay
F63
12 V sensors power supply
F64
###
###
F65
F70
Ignition switch back-up fuse
ZE-s-6 Lex-e-ZE 03/04
TIC LEXION Montana Electric System
Key to diagram:
K1
K2
K3
K4
K5
K6
K7
K8
K9
K10
K13
K14
K15
K16 Cutterbar
K20
K23
K24
K25
K26
K27
K28
K29 Drum speed adjustment relay
K30 Drum speed adjustment relay
K31
K32
K33 Concave clearance +
K34 Concave clearance K35 Front attachment speed +
K36 Front attachment speed K37
K38
K39 Reel speed K40 Reel speed +
Relays
Raise reel
Lower reel
Reel forward
Reel backward
Raise cutterbar
Lower cutterbar
Cutterbar left-hand cross levelling
Cutterbar right-hand cross levelling
Table adjustment forward
Table adjustment backward
Threshing mechanism On/Off
Threshing mechanism On/Off
Cutterbar
Lighting main relay
Alternator
Air conditioner relay
Left-hand full beam relay
Right-hand full beam relay
Left-hand dipped beam relay
Right-hand dipped beam relay
Grain tank extension up
Grain tank extension down
Fan speed +
Fan speed -
03/04 Lex-e-ZE ZE-s-7
Electric System LEXION Montana TIC
Key to diagram:
K41
K42
K43
K44
K45
K46
K47
K48
K49
K50
K51
K53
K54
K55
K56
K57
K58
K59
K61
K62
K63
K64 Reel speed relay
K67
K68
K69
K70 Grain tank unloading relay
Relays
Upper sieve adjustment -
Upper sieve adjustment +
Lower sieve adjustment -
Lower sieve adjustment +
Work lights
Grain tank unloading tube swing time relay
Flash relay USA
Indicator relay Europe
Road travel main relay
Work lights relay
Relay 15
Start relay
Rotor variator +
Rotor variator -
Plus 15 power supply
Transducer
Alternator relay
Work lights relay
Warning beacon
Warning beacon grain tank 70% full
Fan speed relay
Spare relay
Spare relay
Spare relay
ZE-s-8 Lex-e-ZE 03/04
TIC LEXION Montana Electric System
Module A35 - Montana control unit, for Montana machines (with RIO module A50)
Pin Function Component Measuring
variable
1 Earth A41 Earth Output 05S
2 CAN Low Montana A41 - Output 05S
3 CAN High Montana A41 - Output 05S
4 Power supply (CAN) A41 12 V Output 05S
5 not used --- --- --- ---
6 Parking brake signal S93 12 V Input 41S
7 Montana cross levelling sensor signal B94 0.25-4.75 V Input 41S
8 Montana feed rake conveyor sensor signal B95 0.25-4.75 V Input 41S
9 Right-hand axle angle sensor signal B92 0.25-4.75 V Input 41S
10 not used --- --- --- ---
11 Oil quantity increase Y118 12 V Output 41S
12 Master valve (Montana) Y128 12 V Output 4S, 4t
13 Lower axle, right-hand side Y116 12 V Output 41S
14 Raise axle, right-hand side Y117 12 V Output 41S
15 Rotate front attachment to the right Y112 12 V Output 41S
16 Lower cutting angle Y111 12 V Output 41S
17 Power supply (K69) --- 12 V Input 41S, 4S
18 Power supply (K69) --- 12 V Input 41S, 4S
19 RS 232 --- --- --- 05S
20 RS 232 --- --- --- 05S
21 RS 232 --- --- --- 05S
22 RS 232 (Boot) --- --- --- 05S
23 not used --- --- --- ---
24 Earth sensors B91, B92,
B93, B94,
B95
25 Cutting angle sensor signal B93 0.25-4.75 V Input 41S
26 Left-hand axle angle sensor signal B91 0.25-4.75 V Input 41S
27 Power supply of sensors B91, B92,
B93, B94,
B95
28 not used --- --- --- ---
29 Master valve (Working hydraulics) Y77 12 V Output 4S
30 Lower axle, left-hand side Y114 12 V Output 41S
31 Raise axle, left-hand side Y115 12 V Output 41S
32 Rotate front attachment to the left Y113 12 V Output 41S
33 Raise cutting angle Y110 12 V Output 41S
34 Earth --- Earth Input 41S, 4S
35 Earth --- Earth Input 41S, 4S
Earth Output 41S
12 V Output 41S
Direction Circuit
diagram no.
03/04 Lex-e-ZE ZE-s-9
Electric System LEXION Montana TIC
Module A35 - Montana control unit, for Montana machines (with HBM module A45)
Pin Function Component Measuring
variable
1 Power supply (K69) --- 12 V Input 41t, 4t
2 Lower axle, left-hand side Y114 12 V Output 41t
3 Raise axle, left-hand side Y115 12 V Output 41t
4 Raise axle, right-hand side Y117 12V Output 41t
5 Lower axle, right-hand side Y116 12 V Output 41t
6 Rotate front attachment to the left Y113 12 V Output 41t
7 Rotate front attachment to the right Y112 12 V Output 41t
8 Raise cutting angle Y110 12 V Output 41t
9 Lower cutting angle Y111 12 V Output 41t
10 Master valve (Montana) Y128 12 V Output 4t
11 Master valve (Working hydraulics) Y77 12 V Output 4t
12 Oil quantity increase Y118 12 V Output 41t
13 not used --- --- --- ---
14 Earth --- Earth Input 41t
15 Power supply (K69) --- 12 V Input 41t, 4t
16 Left-hand axle angle sensor signal B91 0.25-4.75 V Input 41t
17 Montana cross levelling sensor signal B94 0.25-4.75 V Input 41t
18 not used --- --- --- ---
19 not used --- --- --- ---
20 not used --- --- --- ---
21 CAN Low (Inclinometer) B126 - Output 05t
22 not used --- --- --- ---
23 CAN Low (Montana) A41 - Output 05t
24 Earth A41 Earth Output 05t
25 RS 232 --- --- --- 05t
26 RS 232 --- --- --- 05t
27 not used --- --- --- ---
28 Earth --- Earth Input 41t
29 Power supply (K69) --- 12 V Input 4t
30 Right-hand axle angle sensor signal B92 0.25-4.75 V Input 41t
31 Cutting angle sensor signal B93 0.25-4.75 V Input 41t
32 Parking brake signal S93 12V Input 41t
33 Earth sensors B91, B92,
B93, B94,
B95, B126
34 not used --- --- --- ---
35 not used --- --- --- ---
36 CAN High (Inclinometer) B126 - Output 05t
37 Power supply (CAN) A41 12 V Output 05t
38 CAN High (Montana) A41 - Output 05t
39 RS 232 (Boot) --- --- --- 05t
40 RS 232 --- --- --- 05t
41 not used --- --- --- ---
42 not used --- --- --- ---
Earth Output 41t
Direction Circuit
diagram no.
ZE-s-10 Lex-e-ZE 03/04
TIC LEXION Montana Electric System
Module A36 - Montana gearshift module
Pin Function Component Measuring
variable
1 Earth --- Earth Input 42s, 42t
2 Power supply (+15) K56 12 V Input 42s, 42t
3 Gearbox shifting release S90 12 V Output 42s, 42t
4 2nd gear signal Z83 12 V Input 42s, 42t
5 1st gear signal Z82 12 V Input 42s, 42t
6 Gearbox shift 1st gear Y107 12 V Output 42s, 42t
7 Gearbox shift 2nd gear Y108 12 V Output 42s, 42t
8 Ground speed control lever neutral signal Z57 Earth Input 1s;42s, 42t
9 Ground drive control pressure circuit SH Y125 12 V Output 42s, 42t
10 Engine speed maximum
reduced
--- 12 V – 1st gear
0 V – 2
nd
gear
11 Engine speed (Gearshift control) --- 12 V Input 42s, 42t
12 Parking brake circuit Y123 12 V Input 42s, 42t
13 Shifting aid uphill signal Y121 12 V Input 42s, 42t
14 Shifting aid downhill signal Y122 12 V Input 42s, 42t
15 Working hydraulics master valve Y77 12 V Output 4s, 4t
16 Working hydraulics master valve Y77 12 V Output 4s, 4t
17 Montana master valve Y128 12 V Output 4s, 4t
18 Montana master valve Y128 12 V Input 4s, 4t
19 Montana master valve Y128 12 V Input 4s
20 Working hydraulics master valve Y77 12 V Input 4s, 4t
21 Working hydraulics master valve Y77 12 V Input 4s, 4t
22 Working hydraulics master valve Y77 12 V Input 4s, 4t
23 Working hydraulics master valve Y77 12 V Input 4s, 4t
24 Shifting aid Y121; Y122 12 V Output 42s, 42t
25 not used --- --- --- ---
Direction Circuit
diagram no.
Output 42s, 42t
03/04 Lex-e-ZE ZE-s-11
Electric System LEXION Montana TIC
Module A45 - Ground drive hydraulic motor brake restrictor (HBM)
Pin Function Component Measuring
variable
1 --- --- --- --- ---
2 Master valve Y77 12 V Output 42t
3 CAN high - - - 6t
4 Power +15 K51/87 12 V Input 6t
5 --- --- --- --- ---
6 Earth (GND) -31 Earth Input 6t
7 --- --- --- --- ---
8 Brake restrictor Y124 12 V Output 42t
9 CAN low - - - 6t
Module A50 - Montana RIO module
Pin Function Component Measuring
variable
R0/1 +12 V electronic unit --- --- --- ---
R0/2 +12 V power --- --- --- ---
R0/3 Output 1 Montana master valve Y128 12 V Output 4s, 42s
R0/4 Ground drive hydraulic motor brake
restrictor (output 3)
R0/5 Working hydraulics
master valve output 2
R0/6 Output 4 --- --- --- ---
R0/7 Sensor 1 --- --- --- ---
R0/8 Sensor 2 --- --- --- ---
R0/9 Earth --- --- --- ---
R0/10 Earth --- --- --- ---
R0/11 Module code 1 --- --- --- ---
R0/12 Module code 2 --- --- --- ---
R0/13 Module code 3 --- --- --- ---
R0/14 Module code 4 --- --- --- ---
R0/15 Sensor 3 --- --- --- ---
R0/16 Sensor 4
R1/1 CAN low --- --- --- 6s
R1/2 +12 V electronic unit --- 12 V Input 2s, 6s
R1/3 +12 V power --- 12 V Input 2s, 6s
R1/4 CAN high --- --- --- 6s
R1/5 Earth --- Earth Input 6s
R1/6 Earth --- Earth Input 6s
Y124 12 V Output 42s
Y77 12 V Output 4s, 42s
Direction Circuit
diagram no.
Direction Circuit
diagram no.
ZE-s-12 Lex-e-ZE 03/04
01s
Main power supply,
Diesel engine electric starting motor
for Montana machines
Electric System LEXION Montana TIC
01s - Main power supply, diesel engine electric starting motor, for Montana machines
Key to diagram:
Coordinates
A10 Fieldwork computer module (BIF/CAB) ............................. 2-h-20
G1 Battery................................................................................ 7-n-21
G2 Generator........................................................................... 1-g-17
K13 Threshing mechanism relay............................................... 3-h-20
K53 Start relay........................................................................... 3-h-20
M21 Electric starting motor ........................................................ 3-n-19
S64 Ignition switch ..................................................................... 3-f-18
U21 Battery isolating switch ...................................................... 6-o-20
Z57 Ground speed control lever
neutral position switch - safety start switch ....................... 3-g-18
Measured value table:
Item Component Measured value Remark
K13 Remote control relay
15 A
30 A
K53 Remote control relay
70 A
95±10 Ω
115±10 Ω
(Pin 86/1 – 85/2)
(Pin 87a/4 – 30/3)
(Pin 87/5 – 30/3)
(Pin 86/1 – 85/2)
(Pin 87/5 – 30/3)
1s-2 Lex-e-01s 03/04
TIC LEXION-Montana Electric System
Description of function:
Montana machine: In this circuit, the difference between the standard machine and the
Diesel engine electric
starting motor
Montana machine is only in a cable branch at connector P to P1. The
signal of ground speed control lever in neutral position (Z57) is required
on Montana machines for releasing the gear shifting.
As a safety start switch, relay K53 is supplied with earth only when
switches (Z57a/Z57b) on the ground speed control lever are in neutral
position and the threshing mechanism is disengaged via relay K13. The
ignition lock (S64) then actuates the diesel engine starting motor (M21)
via relay K53 with +50a.
03/04 Lex-e-01s 1s-3
Electric System LEXION Montana TIC
Connector pin definition:
Connector P, P1 Connector G Connector C
Interconnection list:
from to 1 to 2 to 3 to 4 to 5 mm² Colour
C-1 15 6 bk
C-2 G-7 C-21 1.5 bk-rd
C-3 K53-86 K56-86 K52-86 0.75 bk-ye
C-21 G-7 C-2 1.5 bk-rd
C-22 30 6 rd
G-1 K53-87 DS-43 4 bk-ye
G-7 C-2 C-21 1.5 bk-rd
G-16 C-18 K58-86 Cab-34 /
P-5 K13-30 1.5 vi-br
P-6 X-7 DI-7 1.5 vi-ye
P-12 31 2.5 br
P1-5 P-5 A36-8 1.5 vi-bl
0.75 bl
Bif-11
1s-4 Lex-e-01s 03/04
02s
Starting the diesel engine,
Diesel engine speed adjustment
for Montana machines
Electric System LEXION Montana TIC
02s - Starting the diesel engine, diesel engine speed adjustment - for Montana machines
Key to diagram:
Coordinates
A10 Fieldwork computer module (BIF/CAB) ............................. 2-h-20
A15 Electronic engine control module ...................................... 2-o-18
D1 Diesel engine error code LED............................................ 3-h-20
DC Caterpillar diagnosis .......................................................... 3-h-20
K51 Ignition switch relay ........................................................... 3-h-20
K56 Montana relay .................................................................... 3-h-20
R14 CAN bus matching resistor (J1939)................................... 3-h-20
S35 Engine speed adjustment switch ....................................... 3-g-17
U22 Diesel engine diagnosis switch.......................................... 3-h-20
Z33 Coolant level switch without engine cut-off system .......... 1-m-17
Measured value table:
Item Component Measured value Remark
K51 Remote control relay
70 A
115±10 Ω
(Pin 86/1 – 85/2)
(Pin 87/5 – 30/3)
2s-2 Lex-e-02s 03/04
TIC LEXION Montana Electric System
Description of function:
Montana machine: In this circuit, the difference between the standard machine and the
Starting The safety start switch circuit of this engine is identical with the one used
Engine monitoring All sensors relevant for operation and monitoring of the engine are
Engine diagnosis The number of the engine errors occurred and the corresponding error
Diesel engine speed
adjustment
LEXION
Montana
Montana machine is only in a cable branch at connector Y to Y1. The
gearbox switch on connector Y is dropped for Montana machines.
The Montana functions are supplied with power via the unactuated relay
K56. During the starting process, relay K56 is actuated and thus interrupts
the power supply.
on the mechanically controlled engines.
The engine controller module (A15) is activated via relay K51 by the
ignition lock (S64). During the starting procedure, the engine controller
module (A15) receives the speed signal from the sensor provided on the
camshaft and starts the injection.
mounted on the engine wiring loom. Only the water level sensor is
connected to the CLAAS wiring loom.
The engine controller module (A15) transmits the signals for displaying
the engine speed and the coolant temperature to the CAB module (A10)
via the CAN bus J1939. The CAN module (A10) converts this signal to the
CLAAS CAN bus, thus allowing display on the terminal.
codes can be displayed in the terminal
(see also the error code list in the Electric System documentation
297550.x - Diagram 2e).
Further diagnosis is carried out via the diagnosis plug in the central
terminal compartment, using the Caterpillar diagnosis tool CAT-ET. The
display of error codes can also be activated by the diagnosis LED (D1)
after actuating the rocker switch (U22).
The diesel engine speed depends on the position of switch S35 and of the
2nd gear actual value switch (Z83) – see also circuit diagram 42s.
If full throttle speed is selected and the 2nd gear engaged (signal input
A36 / pin 4), the connection between Z41a and Z41b inside the Montana
gearshift control module (A36) is cut (pins 10 and 11) – see also circuit
diagram 42s.
The full throttle speed is reduced to road travel speed, depending on the
contry version. The maximum speed which can be achieved now can be
configured using the Claas diagnosis system CDS.
Type
470-420
Idle speed
(S35)
1200 rpm 2100 rpm 1568 rpm 1960 rpm
Full throttle at
no load
(S35)
20km/h
(Z83)
25km/h
(Z83)
03/04 Lex-e-02s 2s-3
Electric System LEXION Montana TIC
Connector pin definition:
Connector MD, O, Y, Y1 Connector G
Interconnection list:
from to 1 to 2 to 3 to 4 to 5 mm² Colour
G-1 K53-87 DS-43 A15-64 M21-50 4 bk-ye
G-10 F34-A DS-4 A15-70 4 bk-rd
Y-3 W-7 DS-2 Cab-18 1.5 br-wh
Y-4 W-6 DS-1 O-10 Cab-19 1.5 br-ye
Y-9 K56-87a DS-3 1.5 bk
O-10 W-6 DS-1 Y-4 Cab-19 1.5 wh-rd
O-12 F19-A 2.5 bk
MD-1 30 A15-48 A15-52 A15-53 0.5 wh
MD-4 A15-8 XM-D 0.5 wh
MD-5 A15-9 XM-E 0.5 wh
MD-6 31 A15-61 A15-62 A15-63 XM-B
U22-1 0.5 wh
MD-7 A15-28 D2-K 0.5 wh
MD-8 A15-44 U22-2 0.5 wh
MD-9 A15-34 R14-B 0.5 wh
MD-10 A15-50 R14-A 0.5 wh
MD-11 A15-42 R14-C 0.5 wh
XM-A F59-A 0.5 wh
XM-B MD-6 U22-1 0.5 wh
XM-C MD-11 0.5 wh
XM-D MD-4 0.5 wh
XM-E MD-5 0.5 wh
XM-F MD-9 0.5 wh
XM-G MD-10 0.5 wh
Y1-3 Y-3 A36-10 1.5 br-gr
Y1-4 Y-4 A36-11 1.5 br-ye
Y1-9 Y-9 A50-RI-2+3 XSA-C4 XSA-B5 A36-2 1.5 bk
2s-4 Lex-e-02s 03/04
4s
Road travel activation, master valve
for Montana machines (with RIO module A50)
Electric System LEXION Montana TIC
04s - Road travel activation, working hydraulics master valve, for Montana machines with module A50 (RIO)
Key to diagram:
Coordinates
A35 Montana control unit module ...............................................7-i-18
A36 Montana gearshift control module ..................................... 2-h-20
B90 Brake accumulator pressure sensor/switch....................... 5-g-20
DO Master valve diode PCB .................................................... 3-h-20
D5 Master valve DO diode PCB LED...................................... 3-h-20
K49 Road travel main relay....................................................... 3-h-20
K69 Montana relay .................................................................... 3-h-20
S52 Road travel switch (red)..................................................... 3-g-17
Y77 Working hydraulics master valve solenoid coil ................. 6-m-21
Y128 Montana master valve solenoid coil .................................. 7-h-18
Measured value table:
Item Component Measured value Remark
B90 Brake circuit oil
pressure / charge
pressure
K49 Remote control relay
70 A
K69 Remote control relay
15 A
30 A
Y77
Y128
Solenoid coil 3.8 A
ON
OFF
115±10 Ω
95±10 Ω
3.2 Ω
< 135 bar
> 165 bar
(Pin 86/1 – 85/2)
(Pin 87/5 – 30/3)
(Pin 86/1 – 85/2)
(Pin 87a/4 – 30/3)
(Pin 87/5 – 30/3)
4s-2 Lex-e-04s 03/04
TIC LEXION Montana Electric System
Description of function:
Montana machine: On Montana machines, actuation of the working hydraulics master valve
Activation of road travel During road travel, the road travel switch (S52) must be locked in order to
Working hydraulics master
valve
Montana axle hydraulics
master valve
Montana brake pressure
accumulator
Increased brake effect
Montana – only with module
A50 (RIO)
(Y77) is always via the gearshift control module (A36).
cut the power supply for all unnecessary electrical and hydraulic
functions.
In order to be able to build up the necessary working pressure for many
hydraulic controls, the neutral hydraulic circulation must be blocked (see
also the "Hydraulic system" section). In this case, the solenoid coil (Y77)
is actuated in parallel with the function directly via the diode PCB (DO)
and the gearshift control module (A36).
A LED (D5) provided on the diode PCB indicates the activation of the
circuit.
For the Montana functions as well, the circulation of the independent axle
control system hydraulics must be blocked (see also "Hydraulic System"
document).
According to the actuated functions, the Montana control unit (A35)
actuates the Montana master valve (Y128) and/or the working hydraulics
master valve (Y77) via the gearshift control module (A36).
The sensor/switch (B90) controls the brake system accumulator pressure
and, if necessary, actuates the working hydraulics master valve (Y77) via
the gearshift control module (A36) in order to recharge the brake circuit
accumulator.
If the diesel engine speed drops below 2300 rpm while braking, the RIO
module (A50) actuates the working hydraulics master valve (Y77) via
A50/pin R5 and the axle hydraulics master valve (Y128) via A50/pin R3.
This hydraulic load on the diesel engine increases the braking effect. In
addition, a brake restrictor is activated in the hydrostatic ground drive –
circuit diagram 42s.
03/04 Lex-e-04s 4s-3
Electric System LEXION Montana TIC
Connector pin definition:
Connector N, P, P1, V, V1 Connector XSA Connector XSA
Connector XSD Connector XSD
Interconnection list: I
from to 1 to 2 to 3 to 4 to 5 mm² Colour
N-5
N-6 K49-85 0.5 br-bl
P-10 F20-A 1.5 gn-rd
P-12 31 2.5 br
V-10 DO-28 A36-21 DS-50 1.5 pi-wh
V-11 31 2.5 br
V-12 31 2.5 br
P1-10 P-10 1.5 gn-rd
V1-10 A36-15+16 1.5 wh-pi
V1-11 V-11 2.5 br
V1-12 V-12 2.5 br
4s-4 Lex-e-04s 03/04
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