1
2
FIGURE 1. ELECTRICAL SYSTEM SCHEMATIC (1 of 2)
WIRE
COLOR
GAGE
A
BLUE
16
B
BLUE
16
C
GREEN
16
D
YELLOW
16
E
BLACK
10
F
RED
16
G
BLACK
16
J
RED
16
K
BLACK
16
L
YELLOW
16
M
BLUE
16
N
WHITE
10
Q
WHITE
16
R
ORANGE
16
S
RED
16
T
GREEN
16
U
GREEN
16
AB
ORANGE
16
AC
BLUE
16
AD
RED
16
AE
BROWN
16
AF
WHITE
16
AG
WHITE
16
AH
BLACK
16
AJ
YELLOW
16
AK
BROWN
16
AL
RED
16
AM
GREEN
16
AN
RED
16
AP
ORANGE
16
AS
BLACK
16
AV
WHITE
16
AW
RED
16
AX
BLACK
16
AY
BROWN
16
AZ
GREEN
16
DP
YELLOW
16
DR
YELLOW
16
DS
RED
16
DT
ORANGE
16
DU
BROWN
16
DV
GREEN
16
DW
BLUE
16
DX
BLACK
16
DY
BLACK
16
DZ
BROWN
16
AA
ORANGE
16
BB
GREEN
6
DD
BROWN
16
EE
BLACK
16
GG
RED
16
HH
ORANGE
16
JJ
BLUE
16
KK
BROWN
16
LL
BLACK
6
MM
WHITE 16
NN
BLACK
16
PP
RED
16
BLACK
16
RR
YELLOW
16
SS
GREEN
16
TT
ORANGE
16
UU
BLACK
16
VV
BROWN
16
WW
BLACK
16
XX
YELLOW
16
YY
GREEN
16
ZZ
GREEN
16
BC
BLUE
16
BD
YELLOW
16
BG
BROWN
16
BH
YELLOW
16
BJ
GREEN
16
BK
GREEN
16
BL
GREEN
16
BN
BLACK
16
BP
YELLOW
16
BQ
YELLOW
16
BR
BROWN
16
BS
RED
16
BT
WHITE
16
BU
BLACK
16
BV
RED
16
BW
BLACK
16
BY
GREEN
16
BZ
GREEN
16
CD
BLUE
16
CE
BLACK
16
CF
BLACK
16
CG
BROWN
16
CH
ORANGE
16
CJ
BLUE
16
CK
ORANGE
16
CL
GREEN
16
CX
BLACK
16
CY
BLACK
16
EA
YELLOW
16
EB
GREEN
16
EC
YELLOW
16
ED
GREEN
16
EF
BLUE
16
EG
WHITE
16
EH
BLACK
16
EJ
BLACK
16
EK
BLACK
16
EL
BLUE
16
EM
YELLOW
16
EN
WHITE
16
EP
ORANGE
16
ER
BLACK
16
ES
WHITE
16
ET
WHITE
16
EU
WHITE
16
EV
WHITE
16
EW
GREEN
16
FA
BLUE
16
FB
BLACK
16
FD
BLACK
16
FE
WHITE
16
FG
WHITE
16
FK
BROWN
16
FL
BLACK
16
FM
RED
16
FP
BLACK
16
FR
BLACK
16
FS
BROWN
16
FT
BLACK
16
FU
BLACK
16
FV
BLUE
16
FX
YELLOW
16
GA
BLACK
16
GB
GREEN
16
GC
YELLOW 16
GD
GREEN
16
GE
GREEN
16
GF
YELLOW
16
GH
GREEN
16
GJ
WHITE
16
GK
WHITE
16
KQ
WHITE
16
KR
WHITE
16
ELECTRICAL WIRE CODES
CONTAINER ATTACHMENT
WIRE CODES
AA
BLACK
16
DD
BLUE
16
FF
WHITE
16
LL
GREEN
16
MM
WHITE
16
2
BLK or GRN
16
3
BLK or GRN
16
5
BLACK
16
6
BLK or WHT
16
7
BLK or WHT
16
WIRE
COLOR
GAGE
DA
BLUE
16
DB
RED
16
DC
YELLOW
16
DE
BLACK
16
DF
GREEN
16
DG
WHITE
16
DH
BROWN
16
DJ
BROWN
16
DK
YELLOW
16
DL
ORANGE
16
DM
GREEN
16
DN
RED
16
WIRE
COLOR
GAGE
WIRE
COLOR
GAGE
3
4
FIGURE 1. ELECTRICAL SYSTEM SCHEMATIC (2 of 2)
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Y
Z
31
31
31
31
31
31
31
31
31
F
B
B
A
A
E
52
53
54
30
KK
(H)
MM
(J)
SS (U)
RR (L)
S
JJ (T)
PP
GG
TT
TILT
LIFT
LIFT
LOWER
LOWER
NOTE: Letters by lines are identification codes.
Early production codes are in brackets.
6
12427
FIGURE 2. HYDRAULIC SYSTEM SCHEMATIC
1. LIFT CYLINDER (2)
2. LOWERING CONTROL VALVE (2)
3. TILT CYLINDER (4)
4. TILT RELIEF VALVE, 14.0 MPa (2030 psi)
5. STEERING CONTROL UNIT
6. STEERING FLOW AMPLIFIER
7. STEERING CYLINDER
8. RELIEF VALVE (STEERING)
9. CHECK PORT, 22.1 MPa (3200 psi)
10. HYDRAULIC MANIFOLD
11. REMOTE CONTROL VALVE
12. TWO SPOOL CONTROL VALVE
13. CHECK PORT, 17.2 MPa (2500 psi)
14. CHECK PORT, 17.2 MPa (2500 psi)
15. SINGLE SPOOL CONTROL VALVE
16. TANDEM HYDRAULIC PUMP
17. HYDRAULIC PUMP (AUXILIARY, MAST)
18. RESTRICTION VALVE, 1.4 MPa (200 psi)
STANDARD AND SIDE–SHIFT CARRIAGES
CONTAINER ATTACHMENT INSTALLATION
32. EXTENSION CYLINDER (2)
33. TWIST LOCK CYLINDER (2)
34. INTERLOCK VALVE,
TWIST LOCK (4)
35. RELIEF VALVE (TWIST LOCKS)
36. SIDE–SHIFT CYLINDER
37. FLOW DIVIDER
38. RELIEF VALVE (EXTEND/RETRACT)
39. RELIEF VALVE (RH SLEW)
40. RELIEF VALVE (LH SLEW)
41. SLEW CYLINDER, LH
42. SLEW CYLINDER, RH
43. RELIEF VALVE, FORK POSITIONERS (4)
44. FORK POSITIONER CYLINDER, LH
45. FORK POSITIONER CYLINDER, RH
46. SOLENOID VALVE, TWIST LOCK
47. SOLENOID VALVE, EXTEND/RETRACT
48. SOLENOID VALVE, SIDE–SHIFT
49. SOLENOID VALVE, LH FORK
POSITIONER/SLEW
50. SOLENOID VALVE, RH FORK
POSITIONER/SLEW
51. MANIFOLD, SOLENOID VALVE
52. LIFT CONTROL LEVER
53. TILT CONTROL LEVER
54. TO LOW PRESSURE WARNING SWITCH
19. OIL FILTER (2)
20. HYDRAULIC TANK
21. PRESSURE REDUCTION VALVE
22. CHECK PORT (BRAKES)
10.3 MPa (1500 psi)
23. PRESSURE REDUCTION VALVE
24. CHECK PORT (PILOT CIRCUIT)
2.1 MPa (300 psi)
25. CHECK VALVE
26. CHECK PORT (AUXILIARY) –
22.1 MPa (3200 psi)
27. RELIEF VALVE
28. CHECK VALVE
29. ATTACHMENT CONTROL VALVE
30. TWO–SPEED CARTRIDGE
31. TO/FROM BRAKE CIRCUIT
34
34
37
38
33
32
32
33
35
40
36
41
44
43
39
42
45
43
T
U
N
P
G
H
K
J
L
M
50
46
47
48
49
51
Y
Z
N
P
P
N
G
H
K
J
T
U
J
K
L
L
M
M
7
FIGURE 3. BRAKE SYSTEM SCHEMATIC
1. TANDEM HYDRAULIC PUMP
2. ACCUMULATOR CHARGE VALVE
3. PRESSURE REDUCTION VALVE
2.1 MPa (300 psi)
4. ACCUMULATOR
5. PRESSURE REDUCTION VALVE
10.3 MPa (1500 psi)
6. CHECK PORT, 10.3 MPa (1500 psi)
7. PARKING BRAKE VALVE
8. INCHING/BRAKE PEDAL VALVE
9. INCHING VALVE
10. PILOT VALVE
11. LOW BRAKE PRESSURE SWITCH
12. LOW PRESSURE ALARM
13. LOW BRAKE PRESSURE LIGHT
14. BRAKE PRESSURE SWITCH
15. TRANSMISSION LOCK OUT
16. SERVICE BRAKE PEDAL VALVE
17. SHUTTLE VALVE
18. BRAKE LIGHT SWITCH
19. INCHING CYLINDER
20. PARKING BRAKE CALIPER
21. SERVICE BRAKE CALIPER
22. BRAKE MANIFOLD
23. SEQUENCE VALVE
24. AUXILIARY SERVICE BRAKE CALIPER
25. RELAY VALVE
26. TO LIFT CIRCUIT
27. TO STEERING CIRCUIT
28. TO ATTACHMENT CONTROL VALVE
29. CHECK PORT, 2.1 MPa (300 psi)
30. TO REMOTE CONTROL VALVE
31. CHECK PORT
32. CHECK PORT, 2.6 MPa (380 psi)
33. CHECK PORT, 13.8 MPa (2000 psi)
ELECTRICAL WIRE
• • • • • •
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
D
D
A
TT
HH
CC
V
EE
AA
MM (J)
NOTE: Letters by lines are identification codes.
Early production codes are in brackets.
FF
32
33
8
FIGURE 4. HYDRAULIC SCHEMATIC FOR THE TRANSMISSION (NEUTRAL)
12075
23
21
19
17
15
14
13
12
11
10
1
2
3
4
5
7
8
9
1. SUMP
2. SUCTION SCREEN
3. OIL PUMP
4. FILTER
5. PRESSURE REGULATOR VALVE
16
18
20
22
25
24
25
24
1
6
RANGE
F3
F2
F1
N
R1
R2
R3
SOLENOID
1
2
F
R
CLUTCH
FWD
FWD, 2ND
FWD, 1ST
REV, 1ST
REV, 2ND
REV
6. TORQUE CONVERTER RELIEF
VALVE
7. TORQUE CONVERTER
8. OIL COOLER
9. LUBRICATION CIRCUIT
10. INCHING VALVE
11. FIRST SPEED SOLENOID
12. SECOND SPEED SOLENOID
13. REVERSE SOLENOID
14. FORWARD SOLENOID
15. FORWARD SPOOL
16. FORWARD CLUTCH
17. REVERSE SPOOL
18. REVERSE CLUTCH
19. SECOND SPEED SPOOL
20. THIRD SPEED CLUTCH
21. FIRST SPEED SPOOL
22. SECOND SPEED CLUTCH
23. FIRST SPEED CLUTCH
24. ACCUMULATOR
25. REGULATOR SPOOL
9
FIGURE 5. ELECTRICAL SCHEMATIC FOR THE TRANSMISSION
1. BATTERY
2. STARTER
3. BATTERY DISCONNECT SWITCH
4. REVERSE ALARM
5. TRANSMISSION CONTROL VALVE
6. SOLENOID SWITCH
7. SHIFT CONTROL VALVE
8. KEY SWITCH
9. TRANSMISSION LOCKOUT RELAY
10. BRAKE PRESSURE AND TRANSMISSION
LOCKOUT SWITCH
12721
1
2
3
4
5
6
7
8
9
10
DH
DF
DA
DJ
AA
DH
E
AZ
C
DE
DG
B
EJ
GJ
DA
DA
DB
DC
DK
DM
B =
BLUE
16
C =
GREEN
16
AA = ORANGE
16
AZ = GREEN
16
DA = BLUE
16
DB = RED
16
WIRE CODES
DC = YELLOW
16
DE = BLACK
16
DF = GREEN
16
DG = WHITE
16
DH = BROWN
16
DJ = BROWN
16
DK = YELLOW
16
DM = GREEN
16
DH = BROWN
16
E =
BLACK
16
EJ = BLACK
16
GJ = WHITE
16
1
2
F
R
C
B
E
A
D
E
G
F
A
B
C
D