Loader Bobcat 853, 853H. Manual — part 46
C
11
5
C
12
4
MC2564 (5-25-99)
S/N 508415056-15187
S/N 509715097-15221
S/N 510250162-50448
S/N 510375093-75213
(Printed June 1999)
MC2564
853 BOSS - WIRING SCHEMATIC
START
RUN
OFF
ACC
2
1
PUR/WHT
RNG
RNG
DBL/WHT
RNG
WHT
BLK
RED/WHT
IGNITION SWITCH
B
I
ST
SO
BLK
PUR/RED
RED/WHT
C
20
4
BLK
TO OPTIONS
(FRONT WIPER)
CAB HARNESS (BOSS) - 6705136
FLASHER
BR
N
BRN
BR
N
LEFT
FLASHER
LAMP
(IF
EQUIPPED)
BOSS DISPLAY
4
3
2
1
D
E
A
C
B
PUR/RED
PUR/WHT
RNG
BLK
RED
PUR/RED
PUR/WHT
BLK
DIAGNOSTIC PORT
C
20
1
C
21
6
DGN/WHT
DGN/WHT
C119
D
BL
LEFT
HEADLIGHT
(IF
EQUIPPED)
BLK
RED/WHT
PNK
RNG
BR
N
LCD DISPLAY MONITOR
BLK
WHT
DBL/WHT
PNK
PUR/WHT
PUR/RED
RNG
RNG
BLK
RNG
BL
K
BL
K
R
N
G
R
N
G
PU
R
/R
E
D
PU
R
/W
H
T
W
H
T/
R
N
G
R
N
G
/W
H
T
R
N
G
/W
H
T
YEL
/R
ED
BL
K
BL
K
PU
R
/R
ED
YEL
/L
BL
BL
K
BL
K
PU
R
BL
K
YEL
/L
BL
BL
K
YEL
/BR
N
BL
K
YEL
/D
BL
D
B
L/
YEL
HR
B
A
F
STARTER RELAY
SHUTDOWN RELAY
WIRES CONNECT BY
LETTER ACROSS
CONNECTORS
A
B A
B
WHT/LGN
GLOW PLUG RELAY
M
S
B
STARTER
BATTERY
RED
RED
G
S
ALTERNATOR
B
RED
RED
87
87A
30
86
85
BLK
DBL/WHT
PNK
BLK
85
87
87A
LBL/BLK
LBL/RNG
RED
BLK
RED
86
30
85
WHT
WHT/LGN
87
87A
C
12
8
SOME CONNECTOR
BODIES NOT SHOWN
FOR DRAWING CLARITY
BLK
RNG
h
BL
K
C121
R
N
G
GLOW
PLUGS
BOSS
FUEL SHUTOFF
SOLENOID
FUEL
LEVEL
ENGINE OIL
PRESSURE
ENGINE
COOLANT
LGN
C118
LGN/WHT
PUR
EXC
RED
6651664
YEL
/D
G
N
R
N
G
/D
BL
WHT/BLK
86
30
AUXILIARY
HOURMETER AND
HARNESS (IF EQUIPPED)
HERE OR
TO OPTIONS
ENGINE RPM
(MAGNETIC PICKUP)
#
H
2
* * *
G
1
C
3
PIN NUMBER = 30 PIN CONNECTOR
*
C
3
* * *
C
2
D
3
C
1
#
# # # # #
C
2
A
2
A
3
B
1
B
2
B
3
* * * *
F
3
E
1
B
2
B
1
# # # #
D
1
C
1
D
3
D
2
#
E
3
* * * * * * * *
D
1
D
2
E
2
E
3
H
1
H
3
B
3
A
1
#
PIN NUMBER = 18 PIN CONNECTOR
* * * * *
* *
F
2
G
2
G
3
J
1
J
3
J
2
K
1
#
# #
F
3
E
2
F
2
*
*
* *
F
1
K
2
A
3
A
2
#
# #
F
1
E
1
A
1
ENGINE HARNESS (BOSS) - 6705035
A
F
B
BLK
DBL/WHT
PNK
LGN/RED
RED
LGN/PNK
RNG
DGN/YEL
LGN/DBL
DETENT LIGHT
MODE LIGHT
AUXILIARY HYDRAULIC SWITCH
(IF EQUIPPED)
D
C
E
F
B
A
E
B
A
RED
C
D
F
RED
LG
N
/D
BL
D
G
N
/YEL
R
N
G
LG
N
/PN
K
LG
N
/R
ED
PU
R
/L
B
L
BL
K
LB
L/
W
H
T
R
E
D
RED
BLK
RNG
RED/WHT
C110
BL
K
D
BL
B
R
N
RIGHT
HEADLIGHT
(IF
EQUIPPED)
RIGHT
FLASHER
LAMP
(IF
EQUIPPED)
C122
B
LK
B
LK
R
N
G
BL
K
LBL/BLK
*
D
1
RED/WHT
DIODE
R
ED
/W
H
T
AC
C
ES
SO
R
Y
FU
SE
R
ED
/W
H
T
EN
G
IN
E
FU
SE
RED/WHT
E
E
C
D
C
D
RNG
RNG/DGN
BACKUP
ALARM
BL
K
BL
K
PN
K
PN
K
B
LK
D
BL
/W
H
T
B
LK
LEFT
TAILLIGHT
RIGHT
TAILLIGHT
REAR LIGHT HARNESS - 6704232
LEFT
WORK
LIGHT
RIGHT
WORK
LIGHT
RNG/DBL
RNG/DBL
BLK
RNG
RNG/DGN
C
10
6
TO OPTIONS
RED
RNG
HYDRAULIC
CHARGE
PRESSURE
C
12
3
TRANSDUCER HARNESS - 6704345
A
B
B
A
YEL/LBL
BLK
C
11
4
C
11
6
C120
RETURN FILTER
PRESSURE
HYDRAULIC
OIL
PRESSURE
PRE-FILTER
PRESSURE
HYDRAULIC
OIL
TEMPERATURE
TO ENGINE
COOLANT
LEVEL
AIR
FILTER
LIGHT SWITCH
(IF EQUIPPED)
B1
B2
WARNING
HEADLIGHT
REAR WORK
TAIL
RED/WHT
C
20
3
B
A
A B
B A
B A
B
C A
G J F K D H E
B A
B A
RNG
C
10
5
TO OPTIONS
TO OPTIONS
RED/WHT
C
10
8
RED/WHT
A
A
B
BL
K
R
N
G
BLK
BLK
DGN/RED
DGN/LGN
B
C
C407
C408
RNG/DBL
BL
K
RNG
B
A
CONTROLS MODULE
FRONT AUXILIARY
ROD SOLENOID
FRONT AUXILIARY
BASE SOLENOID
R
N
G
D
G
N
B
RNG
YEL/WHT
YEL
R
N
G
R
N
G
LG
N
/D
BL
LG
N
/PN
K
LG
N
/R
E
D
D
G
N
/YE
L
LG
N
/PN
K
LG
N
/R
ED
LG
N
/D
BL
R
N
G
B
A
B
A
B
A
B
A
C
41
0
BLK
BLK
B
A
A
B
A
B
A
B
REAR AUXILIARY
ROD SOLENOID
REAR AUXILIARY
BASE SOLENOID
YEL/WHT
YEL
C
DGN/LGN
A
RNG
DGN/RED
RNG
DGN
D
G
N
/R
ED
CONTROLS HARNESS - 6703878
HORN
C
41
4
C
41
5
C
41
1
A B G J K H C D E F
A B G J K H C D E F
F
A C E
B D
F
A C E
B D
C
G
A
D H
J K
E F B
FRONT
AUX.
DETENT
RIGHT HANDLE
(IF EQUIPPED)
YEL
BRN
RNG/WHT
B
A
RNG/DBL
DGN
B
C
A
LEFT HANDLE
(IF EQUIPPED)
A
C
B
DGN
RNG/DBL
A
B
HORN
RNG/WHT
BRN
YEL
REAR
AUX.
C
40
1
C
40
2
C
40
3
C
40
4
C120
GRY = GREY
WHT = WHITE
PUR = PURPLE
TAN = TAN
BRN = BROWN
PNK = PINK
YEL = YELLOW
DGN = DARK GREEN
LGN = LIGHT GREEN
DBL = DARK BLUE
LBL = LIGHT BLUE
BLK = BLACK
RNG = ORANGE
RED = RED
C120
853 BOSS - WIRING SCHEMATIC
MC2571 (5-25-99)
S/N 508415188-15215
S/N 509715222-15292
S/N 510250449-50691
S/N 510375214-75404
(Printed June 1999)
MC2571
2
1
PUR/WHT
RNG
DBL/WHT
BLK
RED/WHT
IGNITION SWITCH
B
I
SO
RED/WHT
C
20
4
TO OPTIONS
(FRONT WIPER)
FLASHER
BRN
BLK
PUR/RED
BOSS DISPLAY
4
3
2
1
D
E
A
C
B
PUR/RED
PUR/WHT
RNG
BLK
PUR/RED
PUR/WHT
BLK
DIAGNOSTIC PORT
DGN/WHT
DGN/WHT
BR
N
BR
N
D
BL
BLK
WHT
RNG
RED/WHT
PNK
BLK
RNG
RNG
ST
BR
N
LCD DISPLAY MONITOR
BLK
WHT
DBL/WHT
PNK
PUR/WHT
PUR/RED
RNG
RNG
BLK
RNG
BL
K
BL
K
R
N
G
R
N
G
PU
R
/R
E
D
PU
R
/W
H
T
W
H
T/
R
N
G
R
N
G
/W
H
T
R
N
G
/W
H
T
YEL
/R
ED
BL
K
BL
K
PU
R
/R
ED
YEL
/L
BL
BL
K
BL
K
PU
R
BL
K
YEL
/L
BL
BL
K
YEL
/BR
N
BL
K
YEL
/D
BL
D
B
L/
YEL
HR
A
STARTER RELAY
SHUTDOWN RELAY
WIRES CONNECT BY
LETTER ACROSS
CONNECTORS
A
B A
B
WHT/LGN
GLOW PLUG RELAY
M
S
B
STARTER
BATTERY
RED
RED
G
S
ALTERNATOR
B
RED
RED
87
87A
30
86
85
BLK
DBL/WHT
PNK
BLK
85
87
87A
LBL/RNG
RED
BLK
RED
86
30
85
WHT
WHT/LGN
87
87A
SOME CONNECTOR
BODIES NOT SHOWN
FOR DRAWING CLARITY
BLK
RNG
h
BL
K
C121
R
N
G
GLOW
PLUGS
BOSS
FUEL SHUTOFF
SOLENOID
LGN
C118
LGN/WHT
PUR
EXC
RED
YEL
/D
G
N
R
N
G
/D
BL
86
30
AUXILIARY
HOURMETER AND
HARNESS (IF EQUIPPED)
HERE OR
TO OPTIONS
#
H
2
* * *
G
1
C
3
PIN NUMBER = 30 PIN CONNECTOR
*
C
3
* * *
C
2
D
3
C
1
#
# # # # #
C
2
A
2
A
3
B
1
B
2
B
3
* * * *
F
3
E
1
B
2
B
1
# # # #
C
1
D
3
D
2
#
E
3
* * * * * * * *
D
1
D
2
E
2
E
3
H
1
H
3
B
3
A
1
#
PIN NUMBER = 18 PIN CONNECTOR
* * * * *
* *
F
2
G
2
G
3
J
1
J
3
J
2
K
1
#
# #
F
3
E
2
F
2
*
*
* *
F
1
K
2
A
3
A
2
#
# #
F
1
E
1
A
1
A
BLK
DBL/WHT
PNK
LGN/RED
RED
LGN/PNK
RNG
DGN/YEL
LGN/DBL
AUXILIARY HYDRAULIC SWITCH
(IF EQUIPPED)
D
C
E
F
B
A
E
B
A
RED
C
D
F
LBL/BLK
RED
LG
N
/D
BL
D
G
N
/YEL
R
N
G
LG
N
/PN
K
LG
N
/R
ED
PU
R
/L
B
L
BL
K
D
1
LB
L/
W
H
T
R
E
D
RED
WHT/BLK
BLK
RNG
RED/WHT
ACC
OFF
RUN
START
BL
K
D
BL
B
R
N
LEFT
HEADLIGHT
(IF
EQUIPPED)
RIGHT
HEADLIGHT
(IF
EQUIPPED)
LEFT
FLASHER
LAMP
(IF
EQUIPPED)
RIGHT
FLASHER
LAMP
(IF
EQUIPPED)
DETENT LIGHT
MODE LIGHT
B
LK
B
LK
6651664
R
N
G
BL
K
LBL/BLK
*
D
1
RED/WHT
DIODE
R
ED
/W
H
T
AC
C
ES
SO
R
Y
FU
SE
R
ED
/W
H
T
EN
G
IN
E
FU
SE
RED/WHT
C
RNG
RNG/DGN
D
E
BACKUP
ALARM
BL
K
BL
K
PN
K
PN
K
B
LK
D
BL
/W
H
T
B
LK
LEFT
TAILLIGHT
RIGHT
TAILLIGHT
LEFT
WORK
LIGHT
RIGHT
WORK
LIGHT
RNG/DBL
RNG/DBL
BLK
B
F
C
RNG
D
RNG/DGN
E
C
10
6
CAB HARNESS (BOSS) - 6705136
B
F
REAR LIGHT HARNESS - 6704232
RED
RNG
HYDRAULIC
CHARGE
PRESSURE
TRANSDUCER HARNESS - 6704345
A
B
B
A
YEL/LBL
BLK
ENGINE HARNESS (BOSS) - 6705035
C
20
1
C
11
4
C
11
5
RETURN FILTER
PRESSURE
HYDRAULIC
OIL
PRESSURE
PRE-FILTER
PRESSURE
HYDRAULIC
OIL
TEMPERATURE
TO ENGINE
COOLANT
LEVEL
AIR
FILTER
FUEL
LEVEL
ENGINE OIL
PRESSURE
ENGINE RPM
(MAGNETIC PICKUP)
ENGINE
COOLANT
LIGHT SWITCH
(IF EQUIPPED)
B1
B2
WARNING
HEADLIGHT
REAR WORK
TAIL
RED/WHT
C
12
3
C122
C
11
6
C
12
4
C
20
3
C
21
6
C
12
8
RED
B
A
A B
B A
B A
B
C A
G J F K D H E
B A
B A
TO OPTIONS
RNG
TO OPTIONS
TO OPTIONS
RED/WHT
C
10
8
C
10
5
RED/WHT
A
A
B
BL
K
R
N
G
BLK
BLK
DGN/RED
DGN/LGN
B
C
C407
C408
RNG/DBL
BL
K
RNG
B
A
TO
ATTACHMENT
CONTROLS MODULE
FRONT AUXILIARY
ROD SOLENOID
FRONT AUXILIARY
BASE SOLENOID
R
N
G
D
G
N
D
G
N
/L
G
N
B
RNG
YEL/WHT
YEL
R
N
G
R
N
G
LG
N
/D
BL
LG
N
/PN
K
LG
N
/R
ED
D
G
N
/YE
L
LG
N
/PN
K
LG
N
/R
ED
LG
N
/D
BL
R
N
G
B
A
B
A
B
A
B
A
BLK
B
A
A
B
C
DGN/LGN
A
RNG
DGN/RED
RNG
DGN
D
G
N
/R
ED
CONTROLS HARNESS - 6702999
D
G
N
/L
G
N
YEL
YEL
HIGH PRESSURE
RELIEF SOLENOID
LBL/RED
LB
L/
R
E
D
HORN
C
41
3
C
41
5
C
41
4
B
D F
A
G E C K H J
F
D
B
A
G E C K H J
F
A C E
B D
F
A C E
B D
C D E H G J K A F B
YEL
RNG
RNG/WHT
DGN/LGN
DGN/RED
DETENT
WATER KIT
SKI CONTROL
C
D
B
A
A
B
C
FRONT
AUX.
TO
ATTACHMENT
DGN
RIGHT HANDLE (IF EQUIPPED)
A
E
F
B
LGN
DGN
C
45
8
C
45
9
WITHOUT FRONT AUXILIARY VALVE
C120
A
A
B
K
J
BL
K
R
N
G
BLK
BLK
DGN/RED
DGN/LGN
B
C
D
C407
C408
RNG/DBL
BL
K
RNG
B
A
C
G
F
E
B
A
H
D
J
K
C
G
F
E
B
A
H
C
A
B
C
A
B
CONTROLS MODULE
FRONT AUXILIARY
ROD SOLENOID
FRONT AUXILIARY
BASE SOLENOID
CONTROLS HARNESS - 6705283
R
N
G
D
G
N
D
G
N
/L
G
N
B
RNG
YEL/WHT
YEL
D
D
E
E
F
F
R
N
G
R
N
G
LG
N
/D
BL
LG
N
/PN
K
LG
N
/R
ED
D
G
N
/YE
L
LG
N
/PN
K
LG
N
/R
ED
LG
N
/D
BL
R
N
G
B
A
B
A
B
A
B
A
C
41
1
C
41
0
BLK
BLK
B
A
A
B
A
B
A
B
REAR AUXILIARY
ROD SOLENOID
REAR AUXILIARY
BASE SOLENOID
YEL/WHT
YEL
C
DGN/LGN
A
RNG
DGN/RED
RNG
DGN
D
G
N
/R
E
D
HORN
C
41
5
C
41
4
C H G J K A D B E F
WHT
YEL
RNG
RNG/WHT
DGN/LGN
DGN/RED
RNG/WHT
DETENT
WATER KIT
SKI CONTROL
HORN
SKI CONTROL
C
D
B
A
C
A
B
B
A
B
A
A
B
C
FRONT
AUX.
TO
ATTACHMENT
TO
ATTACHMENT
DGN
RNG/DBL
RIGHT HANDLE (IF EQUIPPED)
LEFT HANDLE (IF EQUIPPED)
A
E
F
B
LGN
C
40
3
DBL
DGN
C
45
8
C
45
9
WITH FRONT AUXILIARY VALVE
C120
YEL
YEL/LGN
YEL/RED
RNG
DGN
BRN
YEL
B
A
C
TURN
SIGNAL
REAR AUX.
C
46
0
C
45
7
C
44
0
C
44
1
C
44
0
DBL
C
40
3
LEFT HANDLE (IF EQUIPPED)
RNG/DBL
TO
ATTACHMENT
A
B
B
A
C
A
B
SKI CONTROL
HORN
RNG/WHT
WHT
YEL/RED
YEL/LGN
RNG
YEL
BRN
DGN
C
A
B
SIGNAL
TURN
REAR AUX.
C
45
7
C
44
1
C
46
0
HERE OR TO
ATTACHMENT
HERE OR TO
ATTACHMENT
GRY = GREY
WHT = WHITE
PUR = PURPLE
TAN = TAN
BRN = BROWN
PNK = PINK
YEL = YELLOW
DGN = DARK GREEN
LGN = LIGHT GREEN
DBL = DARK BLUE
LBL = LIGHT BLUE
BLK = BLACK
RNG = ORANGE
RED = RED
AUX.
FRONT
ATTACHMENT
HERE OR TO
C
46
0
ATTACHMENT
HERE OR TO
C
46
0
C
44
1
C
45
7
REAR AUX.
TURN
SIGNAL
B
A
C
DGN
BRN
YEL
RNG
YEL/LGN
YEL/RED
WHT
RNG/WHT
HORN
SKI CONTROL
B
A
C
A
B
B
A
ATTACHMENT
TO
RNG/DBL
LEFT HANDLE (IF EQUIPPED)
C
40
3
DBL
C
44
0
C
44
1
C
44
0
C
45
7
REAR AUX.
SIGNAL
TURN
C
A
B
YEL
BRN
DGN
RNG
YEL/RED
YEL/LGN
YEL
C120
WITH FRONT AUXILIARY VALVE
C
45
9
C
45
8
DGN
DBL
C
40
3
LGN
B
F
E
A
LEFT HANDLE (IF EQUIPPED)
RIGHT HANDLE (IF EQUIPPED)
RNG/DBL
DGN
ATTACHMENT
TO
ATTACHMENT
TO
C
B
A
A
B
A
B
B
A
C
A
B
D
C
SKI CONTROL
HORN
SKI CONTROL
WATER KIT
DETENT
RNG/WHT
DGN/RED
DGN/LGN
RNG/WHT
RNG
YEL
WHT
F
E
B
D
A
K
J
G
H
C
C
41
4
C
41
5
HORN
D
G
N
/R
ED
DGN
RNG
DGN/RED
RNG
A
DGN/LGN
C
YEL
YEL/WHT
BASE SOLENOID
REAR AUXILIARY
ROD SOLENOID
REAR AUXILIARY
B
A
B
A
B
A
A
B
BLK
BLK
C
41
0
C
41
1
A
B
A
B
A
B
A
B
R
N
G
LG
N
/D
BL
LG
N
/R
ED
LG
N
/PN
K
D
G
N
/YEL
LG
N
/R
ED
LG
N
/PN
K
LG
N
/D
BL
R
N
G
R
N
G
F
F
E
E
D
D
YEL
YEL/WHT
RNG
B
D
G
N
/L
G
N
D
G
N
R
N
G
CONTROLS HARNESS - 6705283
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