Hydraulic System
8.162
Model 644E-42/944E-42
Rev. 6/04
a. Male Coupler Pressurized (page 8.130 or
With the Trigger Button held down on the Single
Joystick, and the joystick moved to the LEFT,
pilot pressure from the joystick from the
Accumulator Charge/Secondary Function Valve
“PIL” Port to the Single Joystick Pilot Select Valve Port P
and Joystick “P” Port, exiting Port “1” through the Single
Joystick Pilot Select Valve Port “P1”, exiting Port “AUX2”
will shift the auxiliary spool, allowing system pressure to
flow from the auxiliary spool to the MALE connection of
the Auxiliary Hydraulics Coupler. From the coupler, fluid
flows to the attachment, back to the FEMALE Auxiliary
Coupler, to the auxiliary spool on the Main Control Valve,
exiting through the “Outlet” Port to the Oil Cooler, to the
Return Filter and then to the Hydraulic Reservoir.
b. Female Coupler Pressurized (page 8.138 or
With the Trigger Button held down on the Single
Joystick, and the joystick moved to the RIGHT,
pilot pressure from the joystick from the
Accumulator Charge/Secondary Function Valve
“PIL” Port to the Single Joystick Pilot Select Valve Port P
and Joystick “P” Port, exiting Port “2” through the Single
Joystick Pilot Select Valve Port “P2”, exiting Port “AUX1”
will shift the auxiliary spool, allowing system pressure to
flow from the auxiliary spool to the FEMALE connection
of the Auxiliary Hydraulics Coupler. From the coupler,
fluid flows to the attachment, back to the MALE Auxiliary
Coupler, to the auxiliary spool on the Main Control Valve,
exiting through the “Outlet” Port to the Oil Cooler, to the
Return Filter and then to the Hydraulic Reservoir.
8.8.63
Auxiliary Hydraulic Pressure Release
Valve (644E-42, SN 20118 & Before,
SN 0160002519 thru 0160003108)
(944E-42, SN 20123 & Before,
SN 0160002514 thru 0160003106)
The Auxiliary Hydraulic Pressure Release Valve
(page 8.142) is located on the valve plate below
the operator’s cab. The switch to activate the
valve is located in the upper bank of switches on
the right side of the dash. This switch (1) is used to
release pressure in the auxiliary hydraulic system before
connecting or disconnecting the Auxiliary Hydraulic
Couplings.
a. Auxiliary Hydraulic Pressure Release Switch
(Dual Joystick page 8.142)
When the Auxiliary Hydraulic Pressure Release Switch is
pressed for two seconds, the Auxiliary Hydraulic
Pressure Release Valve is opened by a solenoid shifting
the spool in the valve. A Shuttle Valve allows the higher
pressure to be released but it does not allow the oil to
pass into the opposite auxiliary hydraulic hose. The
return oil now can drain directly to the Hydraulic
Reservoir.
The two auxiliary hydraulic couplings can now be easily
connected or disconnected.
b. Auxiliary Hydraulic Pressure Release Switch
(Single Joystick page 8.144)
When the Auxiliary Hydraulic Pressure Release Switch is
pressed for two seconds, the Auxiliary Hydraulic
Pressure Release Valve is opened by a solenoid shifting
the spool in the valve. A Shuttle Valve allows the higher
pressure to be released but it does not allow the oil to
pass into the opposite auxiliary hydraulic hose. The
return oil now can drain directly to the Hydraulic
Reservoir.
The two auxiliary hydraulic couplings can now be easily
connected or disconnected.
MU0070
MU0080
MU5600
OU0501
1
Содержание 944E-42
Страница 1: ......
Страница 2: ......
Страница 14: ...Safety Practices 1 8 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 102: ...Boom 3 56 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 139: ...4 37 Model 644E 42 944E 42 Rev 6 04 Cab and Covers This Page Intentionally Left Blank...
Страница 144: ...Cab and Covers 4 42 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 174: ...Axles Drive Shafts Wheels Tires and Brakes 5 30 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 202: ...Engine Cummins 4BT 3 9 B4 5T and QSB 4 5T 7 2 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 265: ...8 15 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 269: ...8 19 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 273: ...8 23 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 277: ...8 27 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 281: ...8 31 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 285: ...8 35 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 289: ...8 39 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 293: ...8 43 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 297: ...8 47 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 301: ...8 51 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 407: ...8 157 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 425: ...8 175 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Страница 430: ...Hydraulic System 8 180 Model 644E 42 944E 42 Rev 6 04 MU4100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 6 6 16...
Страница 501: ...8 251 Model 644E 42 944E 42 Rev 6 04 Hydraulic System MT1950 2 3 4 5 6 7 8 5 5...
Страница 507: ...8 257 Model 644E 42 944E 42 Rev 6 04 Hydraulic System MT1950 1 2 3 4 5 6 7 4 4...
Страница 508: ...Hydraulic System 8 258 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 525: ...9 17 Model 644E 42 944E 42 Rev 6 04 Electrical System This Page Intentionally Left Blank...
Страница 554: ...Electrical System 9 46 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 759: ...10 3 Model 644E 42 944E 42 Rev 6 04 Stabil TRAK System This Page Intentionally Left Blank...
Страница 765: ...10 9 Model 644E 42 944E 42 Rev 6 04 Stabil TRAK System This Page Intentionally Left Blank...
Страница 785: ...10 29 Model 644E 42 944E 42 Rev 6 04 Stabil TRAK System This Page Intentionally Left Blank...
Страница 800: ...Stabil TRAK System 10 44 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 832: ...Transfer Carriage 11 32 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 840: ...12 8 Model 644E 42 944E 42 Rev 6 04 Index...
Страница 841: ...Accident Prevention Tags OS2180 8990403 Origin 5 00 Accident Prevention Tags...
Страница 842: ...Accident Prevention Tags OS2180 8990403 Origin 5 00...
Страница 843: ......
Страница 844: ......