CROSS - FLOW CF 80 COMBINE HARVESTER 4 – ELECTRICAL SYSTEM

Relay and Diode Equipment

12V
The following relays (designated with K)
exist in the central processing unit:
K1 Working lights F6

K1
K2 Flasher unit
K3 Dipper relay
K4 Incremental relay, unloader clutch

K54
K2

K4
K5 Relay field / road Sicherungen
K6 Safety relay, rape separator
K7 Rape separator, right
K8 Rape separator, left

K3

K12

K60
K5

D1

D2

D3

D4

D5
K9 Starting safety, neutral position
K10 Starting safety electronics subassembly
start - stop
K11 Protective relay for starter motor
K12 Relay for 12 V loads with connected

KKWS

K10
K11

K13
K14
K15
K16
K17
K18
K19
K6
K7
K8
K9
ignition switch
K13 Relay for starting safety
Unloader pipe
K14 Brake light relay K20
K21
K22
K23
K24
K25
K26

K28
K29
K30
K31
K33
K34
K35
K27
K15 Safety circuit
Chaff-cutter clutch
K16 Chaff-cutter clutch
K17 Relay for speed adjustment

K61M
K32
K37
K38
K39
K40
K41
K42
K43
K44

K58
K59

K61P
Threshing drum variator
K18 Relay for speed adjustment
Fan control
K19 Relay for rotaflare lights
K20 Lower shaft (only Design P) K37 Switch in permanent low beam with
K21 Lift shaft (only Design P) attached corn adapter
K22 Lift reel K38 Changeover low beam, left
K23 Lower reel headlight (corn)
K24 Reel forwards K39 Changeover low beam, right
K25 Reel backwards headlight (corn)
K26 Not used K41 Safety circuit, threshing unit
K27 Relay for 24V loads with connected clutch
ignition switch K42 Safety circuit, header
K28 Not used clutch
K29 Not used K43 Header emergency stop
K30 Swivel out unloader pipe K44 Speed monitoring, header
K31 Swivel in unloader pipe K54 Shut-off delay, fan
K32 Relay for honking, starting safety K58 Switch-on conditions, electrical
K33 Safety circuit, unloader clutch central lubrication pump
K34 Not used K 59 Relay starting safety
K35 Voltage supply sensors of the K61P Relay starting safety
field tracking K61M Relay starting safety
KKWSSignal from cooling water status
sensor
(only starting with DCF 880301)

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CROSS - FLOW CF 80 COMBINE HARVESTER 4 – ELECTRICAL SYSTEM

Relays Outside of the Central Processing Unit

Cab
The relays K A1 to K A5 are located
in the cab. The front ceiling cover is
removed after unscrewing the 4
fastening screws and taking off the fan
sprayers.
The relays K A1 to K A5 are located in
the right corner over the computer panel.
They are responsible for the air
conditioning.

The relays K A6 and K A7 are located

on the left machine side behind the
master battery switch.
Relay K A7 is in front in the direction of
travel starting with Machine Numbers
01 to 60. Relay K A6 is located in front
in the direction of travel starting with
Machine Number 61.

K A6 header return
K A7 12 volt on-board voltage

K A6 K A7

Relay K A8 is located between the two

dynamos. It is still designated K 53
in older circuit diagrams.

K A8

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CROSS - FLOW CF 80 COMBINE HARVESTER 4 – ELECTRICAL SYSTEM

Replacement Part Numbers of the Various Relays

K 20 Only Design P
K 21 Only Design P
K 35 Starting with DCF 880061
K 58 Starting with DCF 880061
(option)
K KWS Starting with DCF 880301

Relay number Designation Remark Replacement

part number
K1 07080994
K2 Flasher unit 98032739
K3 Dipper relay 98032740
K4 Incremental relay 060518496
K 54 Drop-off delay T = 5 seconds
K 5 ; 12 ; 60 07090545
K 7 ; 8 ; 11 24 volt mini-relay Change in the 31346987
reconstruction
program in 2001
Remaining relays 24 volt mini-relay Changeover to new 072079260
relay in I / 2001 replaced by
31346987
K 32 ; 37 ; 38 ; 39 12 volt mini-relay 07077033

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CROSS - FLOW CF 80 COMBINE HARVESTER 4 – ELECTRICAL SYSTEM
K A1 ; A2 ; A3 ; A4 ; A5 12 volt relay In cab roof 07074850
K A6 ; A7 ; A8 24 volt power relay 9019059245

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 CROSS - FLOW CF 80 COMBINE HARVESTER 4 – ELECTRICAL SYSTEM

Fuses

From Machine Numbers

DCF 880001 to
DCF 880060

F1:1 (25 A) Load through heater starter switch F4:1 (7,5 A) Working hydraulics (without
F1:2 (15 A) Water level transmitter and discharge pipe)
reversing horn F4:2 (7,5 A) Hydraulics, discharge pipe
F1:3 (15 A) Cooling bag socket F4:3 (7,5 A) Unloader clutch
F1:4 (25 A) Air conditioner and fan F4:4 (4 A) Fan and reel speed adjustment
F1:5 (7,5 A)Windscreen wiper F4:5 (10 A) Threshing unit and header clutch
F1:6 (25 A) Lighting system F4:6 (10 A) Chaff-cutter, complete
F1:7 (15 ) Socket and seat adjustment F4:7 (25 A) Rape separator, right
F1:8 (7,5 A)Radio F4:8 (25 A) Rape separator, left
F2:1 ( 4 A) High beam, right F5:1 (10 A) Reel, fan and threshing drum
F2:2 ( 4 A) High beam, left speed adjustment
F2:3 ( 4 A) Low beam, right F5:2 (10 A) Field tracking and threshing
F2:4 ( 4 A) Low beam, left basket adjustment
F2:5 ( 4 A) Parking light, right, rear and trailer F5:3 (7,5 A) Header return
F2:6 ( 4 A) Parking light, left, rear and trailer F5:4 - Free
F2:7 ( 4 A) Parking light, right, front and grain F5:5 (4 A) Grain tank filling display
tank F5:6 (4 A) On-board computer, 12V
F2:8 ( 4 A) Parking light, left, front and grain tank F5:7 (2 A) Speed initiators, right, 12 V
F3:1 (15 A) Working lights, roof, right, and back- F5:8 (2 A) Speed initiators, left, 12 V
up lights
F3:2 (15 A) Working lights, roof, left
F3:3 (15 A) Working lights, platform and unloader F6: Main fuse
lighting
F3:4 (10 A) Rotaflare light, horn, headlight 24 volt
flasher
F3:5 (7,5 A) Brake light
F3:6 (7,5 A) Direction indicator
F3:7 (4 A) Mirror adjustment

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 CROSS - FLOW CF 80 COMBINE HARVESTER 4 – ELECTRICAL SYSTEM
F3:8 (4 A) Electrical central lubrication system

Fuses
Starting with
DCF 880061

F1:1 (25 A) Load through heater starter switch F4:1 (7,5 A) Working hydraulics (without
F1:2 (15 A) Water level transmitter and discharge pipe)
horn F4:2 (7,5 A) Hydraulics, discharge pipe
F1:3 (15 A) Cooling bag socket F4:3 (7,5 A) Unloader clutch
F1:4 (25 A) Air conditioner and fan F4:4 (4 A) Fan and reel speed adjustment
F1:5 (7,5 A) Windscreen wiper F4:5 (10 A) Threshing unit and header clutch
F1:6 (25 A) Lighting system F4:6 ( 10 A) Chaff-cutter, complete
F1:7 (15 ) Socket and seat adjustment F4:7 (25 A) Rape separator, right
F1:8 (7,5 A)Radio F4:8 (25 A) Rape separator, left
F2:1 ( 4 A) High beam, right
F2:2 ( 4 A) High beam, left F5:1 (10 A) Reel, fan and threshing drum
F2:3 ( 4 A) Low beam, right speed adjustment
F2:4 ( 4 A) Low beam, left F5:2 (10 A) Field tracking and threshing
F2:5 ( 4 A) Parking light, right, rear and trailer basket adjustment
F2:6 ( 4 A) Parking light, left, rear and trailer F5:3 (7,5 A) Header return
F2:7 ( 4 A) Parking light, right, front and grain F5:4 (4 A) Grain tank filling display
tank F5:5 (7,5 A) Yield recording / all-wheel drive
F2:8 ( 4 A) Parking light, left, front and grain F5:6 (4 A) On-board computer, 12V
tank F5:7 (2 A) Speed initiators, right, 12 V
F3:1 (15 A) Working lights, roof, right, and back- F5:8 (2 A) Speed initiators, left, 12 V
up lights
F3:2 (15 A) Working lights, roof, left
F3:3 (15 A) Working lights, platform and unloader F6: (50 A) Main fuse (circuit breaker)
lighting
24 volt
F3:4 (10 A) Rotaflare light, horn, headlight
flasher
F3:5 (7,5 A) Brake light
F3:6 (7,5 A) Direction indicator

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 CROSS - FLOW CF 80 COMBINE HARVESTER 4 – ELECTRICAL SYSTEM
F3:7 (4 A) Mirror adjustment
F3:8 (4 A) Electrical central lubrication system

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CROSS - FLOW CF 80 COMBINE HARVESTER 4 - ELECTRICAL SYSTEM

Position of the Connectors, CF80

Position in the combine harvester Number of the circuit diagram
X2 Input into the central processing unit 00;01;02;03;05;17;19;20;23;31;40;41
X5 Input into the central processing unit 00;05;09
X 5.1 Between engine and grain tank 00
X6 Input into the central processing unit 00;01;05;21;22;23;24;27;31
X 6.1 Left side wall, under the power engine 00;01;31
take-off
X7 Input into the central processing unit 00;01;02;15;16;19;23;25;26;28;29;30
X 7.3 In the steering axle support, right 03
X 7.4 In the steering axle support, left 03
X8 Input into the central processing unit 00;01;02;03;09;19;24;25;26;29;30;31
X9 Input into the central processing unit 00;02;04;08;09;19;20;21;22;23;24;
25;26;29;30;31;40;41
X 10 Input into the central processing unit 04;08;09;19;20;21;22;24;27;28;41
X 11 Platform, right, on distributing valve 19;23;25;26;29;30
X 12 In the control panel 00;23;25;29;30
X 13 Input into the central processing unit 00;22;23;24;26;29;30;40;41
X 13.1 In the control panel 25
X 14 Input into the central processing unit 00;03;05;15;16;23;25
X 14.1 Cab roof over the display unit 03;05
X 14.2 Cab roof over the display unit 05;09;15;16;25
X 15 Input into the central processing unit 00;01;03;04;05;08;17;23
X 16 Input into the central processing unit 09;19;20;21;22;24;26;27;30;31;40
X 17 Input into the central processing unit 26;30
X 24 Platform, lamp unit, left 00;01
X 25 Platform, lamp unit, right 00;01;03
X 26 Under the driver's platform; for the 00;01;02;03
steering column
X 27 On the drive axle, right, for the shaft 24;25;26;31
X 28 Platform, left, for threshing basket 03;15;16
adjustment
X 30 In the steering axle support, right 01;02;03
X 31 Straw area hood at ascent stage in the 01;02;17
back
X 32 At the grain tank, right, behind the central 01;17;23
processing unit
X 33 In the steering axle support, right 02
X 34 In the steering axle support, left 01;02
X 44 In the central processing unit; electronics
subassembly, start stop
X 45 In the central processing unit; electronics 22;24
subassembly, header return
X 101 Right cab capping piece; front; top 19;20;21;22;24;31

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CROSS - FLOW CF 80 COMBINE HARVESTER 4 - ELECTRICAL SYSTEM

Sockets
Voltage Function Position in the combine Circuit
harvester diagrams
XA 12 volt Hand lamp In the central processing unit 00
XB 12 volt Cigarette lighter On the left next to the driver's 00
seat
X Br 12 volt Radio loudspeaker Cab roof; behind the radio 08
XC 12 volt Hand lamp Right front lamp unit 00
XD 12 volt Hand lamp Left front lamp unit 00
XE 12 volt Cooling box Under the passenger seat 00;08
XF 12 volt Hand lamp In front of the battery box 00
XH 12 volt Header vehicle On the trailer equipment 01;03
XL 24 volt Left rape separator Left side wall of the header 28
XR 24 volt Right rape separator Right side wall of the header 28
XS 12/24 volt Header Back left wall of the header 01;03;19;26;28
X Sw 12 volt Radio power supply 08

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CROSS - FLOW CF 80 COMBINE HARVESTER 4 - ELECTRICAL SYSTEM

Plugs on the Central Processing Unit

The plugs are numbered on the central processing unit and the accompanying harness.

X2 X5 X6 X7 X8 X 17

X9 X 10 X 13 X 14 X 15 X 16

The following plugs are located in the central processing unit:

X 44 Card subassembly Start-Stop
X 45 Card subassembly Header Return

The connectors for the card subassembly of field tracking / threshing basket adjustment
are labeled with 1; 2; 3 for Design P or 1; 2 for Design Q. Also see page 4-104

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CROSS - FLOW CF 80 COMBINE HARVESTER 4 - ELECTRICAL SYSTEM
Combine Harvester, Right

The following connectors are presented on this page :

X2 X 10 X 15 X 101
X5 X 11 X 16
X6 X 13 X 17
X7 X 14 X 26
X8 X 14.1 X 44
X9 X 14.2 X 45

The following sockets are presented on this page :

XA
XC X 14.1
X 14.2
X 101

XA

XA

X 44
X 45

26 X

XC

X 11

X 2
X 5
X 6
X 7
X 8
X 9
X 10
x 13
X 14
X 15
X 16
X 17

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CROSS - FLOW CF 80 COMBINE HARVESTER 4 - ELECTRICAL SYSTEM

Combine Harvester, Left

The following connectors are presented on this page :

X 6.1
X 28

The following sockets are presented on this page :

XD
XE
XF
XS

X 28 X 6.1

XE

XD XF
XS

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CROSS - FLOW CF 80 COMBINE HARVESTER 4 - ELECTRICAL SYSTEM

Combine Harvester from Above

The following connectors are presented on this page :

X 5.1
X 31
X 32

The following sockets are presented on this page :

xA
XB
X Br
XC
XD
XE
XF

X 32 X 5.1 X 31

XA

XC

XB

X Br
X Sw

XD

XE XF

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CROSS - FLOW CF 80 COMBINE HARVESTER 4 - ELECTRICAL SYSTEM

Combine Harvester from the Front

The following connectors are presented on this page :

X 13.1 X 27
X 14.1 X 38
X 14.2 X 101
X 24
X 25
X 26

X 14.1
X 14.2
X 101

X 13.1 X 38

X 25 X 24

X 26

X 27

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CROSS - FLOW CF 80 COMBINE HARVESTER 4 - ELECTRICAL SYSTEM

Combine Harvester from the Back

The following connectors are presented on this page :

X 30
X 33
X 34

The following sockets are presented on this page :

XH

X 34 X 30
X 33

XH

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