Hydraulic System
8.2
Model 644E-42/944E-42
Rev. 6/04
8.8.12
Boom Retract Circuit & Troubleshooting (Dual Joystick) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.78
8.8.13
Boom Retract Circuit & Troubleshooting (Single Joystick) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.80
8.8.14
Boom Lift Circuit & Troubleshooting (Dual Joystick) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.82
8.8.15
Boom Lift Circuit & Troubleshooting (Single Joystick) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.84
8.8.16
Boom Lower Circuit & Troubleshooting (Dual Joystick) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.86
8.8.17
Boom Lower Circuit & Troubleshooting (Single Joystick) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.88
8.8.18
Frame Sway (Left), Stabilizer Circuit & Troubleshooting (SN 18460 and Before) . . . . . . . . . . .
8.90
8.8.19
Frame Sway (Left), Stabilizer Circuit & Troubleshooting (SN 18461 and After) . . . . . . . . . . . . .
8.92
8.8.20
Frame Sway (Right), Stabilizer Circuit & Troubleshooting ( SN 18460 and Before). . . . . . . . . .
8.94
8.8.21
Frame Sway (Right), Stabilizer Circuit & Troubleshooting (SN 18461 and After). . . . . . . . . . . .
8.96
8.8.22
Attachment Tilt (Down), Slave Cylinder Circuit & Troubleshooting (Dual Joystick) . . . . . . . . . .
8.98
8.8.23
Attachment Tilt (Down), Slave Cylinder Circuit & Troubleshooting (Single Joystick) . . . . . . . . . 8.100
8.8.24
Attachment Tilt (Up), Slave Cylinder Circuit & Troubleshooting (Dual Joystick). . . . . . . . . . . . . 8.102
8.8.25
Attachment Tilt (Up), Slave Cylinder Circuit & Troubleshooting (Single Joystick) . . . . . . . . . . . 8.104
8.8.26
Transfer Carriage Cylinder Extend (Carriage Back) Circuit & Troubleshooting (Dual Joystick) . 8.106
8.8.27
Transfer Carriage Cylinder Extend (Carriage Back) Circuit & Troubleshooting (Single Joystick) 8.108
8.8.28
Transfer Carriage Cylinder Retract (Carriage Fwd) Circuit & Troubleshooting (Dual Joystick) . 8.110
8.8.29
Transfer Carriage Cylinder Retract (Carriage Fwd) Circuit & Troubleshooting (Single Joystick) 8.112
8.8.30
Front-Wheel Steering Circuit (Left Turn) & Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.114
8.8.31
Front-Wheel Steering Circuit (Right Turn) & Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 8.116
8.8.32
Four-Wheel Steering Circuit (Left Turn) & Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.118
8.8.33
Four-Wheel Steering Circuit (Right Turn) & Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.120
8.8.34
Crab Steering Circuit (Left Turn) & Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.122
8.8.35
Crab Steering Circuit (Right Turn) & Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.124
8.8.36
Auxiliary Hydraulic Circuit & Troubleshooting (Male Coupler Pressurized - Dual Joystick)
(644E-42, SN 20118 & Before, SN 0160002519 thru 0160003108)
(944E-42, SN 20123 & Before, SN 0160002514 thru 0160003106) . . . . . . . . . . . . . . . . . . . . . 8.126
8.8.37
Auxiliary Hydraulic Circuit & Troubleshooting (Male Coupler Pressurized - Dual Joystick)
(644E-42, SN 0160003109 & After) (944E-42, SN 0160003107 & After) . . . . . . . . . . . . . . . . . 8.128
8.8.38
Auxiliary Hydraulic Circuit & Troubleshooting (Male Coupler Pressurized - Single Joystick)
(644E-42, SN 20118 & Before, SN 0160002519 thru 0160003108)
(944E-42, SN 20123 & Before, SN 0160002514 thru 0160003106) . . . . . . . . . . . . . . . . . . . . . 8.130
8.8.39
Auxiliary Hydraulic Circuit & Troubleshooting (Male Coupler Pressurized - Single Joystick)
(644E-42, SN 0160003109 & After) (944E-42, SN 0160003107 & After) . . . . . . . . . . . . . . . . . 8.132
8.8.40
Auxiliary Hydraulic Circuit & Troubleshooting (Female Coupler Pressurized - Dual Joystick)
(644E-42, SN 20118 & Before, SN 0160002519 thru 0160003108)
(944E-42, SN 20123 & Before, SN 0160002514 thru 0160003106) . . . . . . . . . . . . . . . . . . . . . 8.134
8.8.41
Auxiliary Hydraulic Circuit & Troubleshooting (Female Coupler Pressurized - Dual Joystick)
(644E-42, SN 0160003109 & After) (944E-42, SN 0160003107 & After) . . . . . . . . . . . . . . . . . 8.136
8.8.42
Auxiliary Hydraulic Circuit & Troubleshooting (Female Coupler Pressurized - Single Joystick)
(644E-42, SN 20118 & Before, SN 0160002519 thru 0160003108)
(944E-42, SN 20123 & Before, SN 0160002514 thru 0160003106) . . . . . . . . . . . . . . . . . . . . . 8.138
8.8.43
Auxiliary Hydraulic Circuit & Troubleshooting (Female Coupler Pressurized - Single Joystick)
(644E-42, SN 0160003109 & After) (944E-42, SN 0160003107 & After) . . . . . . . . . . . . . . . . . 8.140
8.8.44
Auxiliary Hydraulic Pressure Release Circuit & Troubleshooting (Dual Joystick)
(644E-42, SN 20118 & Before, SN 0160002519 thru 0160003108)
(944E-42, SN 20123 & Before, SN 0160002514 thru 0160003106) . . . . . . . . . . . . . . . . . . . . . 8.142
8.8.45
Auxiliary Hydraulic Pressure Release Circuit & Troubleshooting (Single Joystick)
(644E-42, SN 20118 & Before, SN 0160002519 thru 0160003108)
(944E-42, SN 20123 & Before, SN 0160002514 thru 0160003106) . . . . . . . . . . . . . . . . . . . . . 8.144
8.8.46
Pump and Cooling Circuit Description (Dual Joystick). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.146
8.8.47
Pump and Cooling Circuit Description (Single Joystick) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.146