o mach thuy luc may ep nhua
Hệ thống thủy lực máy xúc cat 966h
Ngày tải lên :
22/10/2012, 08:41
... Check
Valve
Pump
and
Pump
Control
Valve
Dump Pilot
Solenoid Valve
Lower / Float
Pilot
Solenoid Valve
Raise Pilot
Solenoid Valve
Tilt Back Pilot
Solenoid Valve
Line
Relief
Valves
Screen
Tilt Spool
Lift Spool
Pressure
Compensator
Valve
Resolver
Valve
Re ... SPEED AT CUT OUT
Hydraulic
Fan
Motor
Filter
Oil
Cooler
Fan Solenoid
Valve
Brake and
Hydraulic
Fan Pump
Flow
Control
Spool
Pressure
Cutoff
Spool
Pump
Control Valve
Min Angle
Actuator
Hydraulic ... Screw
Connected to
Steering Wheel
From
Implement
Control Valve
To Steering
Control Valve
To Steering
Control Valve
Pilot Oil Ports
Directional
Control Valve
Input Shaft
STEERING PILOT VALVE
NO TURN
From
Implement
Control...
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- 1.7K
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Hệ thống thủy lực máy đào CATERPILLAR SERIE D - P1
Ngày tải lên :
23/10/2012, 14:11
... the solenoid connections on top of the injector. Use the proper torque
specification in the service information.
NOTE: When removing an injector on the C4.4/C6.6 engine, move the intake rocker
arms ... amount of fuel delivered to the combustion chamber. The engine electronic control
system also monitors other functions that are critical for engine performance, such as
lubrication, combustion ... and cooling.
NOTE: This illustration shows the common input and output components on the
C4.4/C6.6 engines. Other input and output components are installed on specific machine
applications.
SERV1837-01...
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- 1.1K
- 10
Hệ thống thủy lực máy đào CATERPILLAR SERIE D - P2
Ngày tải lên :
23/10/2012, 14:11
... to
cover the introduction, operator's compartment, engines, pilot hydraulic system, main control
valve group, swing system, travel system, and tool control systems. This training package may
be ... with
Common Rail Fuel System Machine Applications" SERV1837
Estimated Time: 1 Hour
Form: SERV1852-02
Date: October 2008
© 2008 Caterpillar Inc.
PRESENTATIONS
INTRODUCTION AND OPERATOR'S ... Study Course" TEMV3002
"Fundamentals of Power Train Self Study Course" TEMV3003
"Fundamentals of Electrical Systems Self Study Course" TEMV3004
"Fundamentals of Engines...
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Hệ thống thủy lực máy đào CATERPILLAR SERIE D - P3
Ngày tải lên :
23/10/2012, 14:11
... )
WORK TOOL SELECT
TOOL No. 1
TOOL No. 2
TOOL No. 3
TOOL No. 4
OTHER
LANGUAGE SELECT
ENGLISH
FRANCAIS
DEUTSCH
ITALIANO
ESPANOL
OTHERS
INDICATED ITEM
TOOL NAME
SERVICE HR METER
ECONO ... double
action) and can be controlled with a foot pedal or a joystick.
- System 14 (Multifunction) - provides one or two pump flow in one or two directions
(single action or double action). System ... of the cooling system components and servicing some of the fuel system and
cooling system components. The following components are called out in the illustration above:
- hydraulic oil cooler (1)
-...
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- 728
- 10
Hệ thống thủy lực máy đào CATERPILLAR SERIE D - P4
Ngày tải lên :
23/10/2012, 14:11
... control spool.
The control spool will shift in proportion to the amount of pilot oil sent to the control spool
from the a pilot valve or solenoid.
For some circuits, proportional solenoid valves ... the solenoid spool shifts.
As the solenoid spool shifts, pilot oil is metered from one of the energized solenoid valves to
the attachment circuit to control the position of the control spool for ... passage for the oil to the control
valve and meter pilot pressure oil to the control valve to cause the control spool (not shown) to
shift. The greater the pilot oil flow to the control spool, the...
- 24
- 703
- 7
Hệ thống thủy lực máy đào CATERPILLAR SERIE D - P11
Ngày tải lên :
23/10/2012, 14:11
... turn a function ON/OFF or allow the
operator to toggle through different modes of the selected function. The soft switches provide
the operator with the following functions:
Two-speed travel ... switch opens.
Work tool switch (4): The work tool switch will show the selected work tool on the monitor
display. Press the switch repeatedly to change the selected work tool. When the desired work
tool ... desired work
tool is highlighted in the monitor display press the "OK" button on the monitor to select the
work tool shown.
Work lights switch (5): The work lights switch toggles between...
- 38
- 1K
- 12
Hệ thống thủy lực máy đào CATERPILLAR SERIE D - P5
Ngày tải lên :
23/10/2012, 14:11
...
Piston
Feedback Lever
Negative Flow
Control Spool
Torque
Control Lever
PUMP CONTROL GROUP
Negative
Flow Control
Lever
Torque Control
Spool
Torque
Control Section
Horsepower
Control Section
Maximum
Minimum
Large ... the
horsepower control section to regulate pump flow when the hydraulic circuits are actuated
.
Small End Of
Actuator Piston
Horsepower
Control Sleeve
Horsepower
Control Spool
Torque
Control ... lever to pivot on the feedback lever pin
and move the horsepower control spool.
SERV1852-02 - 28 - Text Reference
08/08 Main Pumps
Torque Control
Spool
Horsepower
Control Spool
NFC Spool
Feedback...
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Hệ thống thủy lực máy đào CATERPILLAR SERIE D - P6
Ngày tải lên :
23/10/2012, 14:11
... joystick is partially moved from the NEUTRAL position to perform a fine control
operation, reduced pilot pressure shifts the control spool slightly to the left. The movement of
the control spool ... pump to begin to upstroke.
The movement of the spool partially opens a passage allowing the oil from Port B to work with
the load check valve spring to keep the load check valve seated.
The load ...
Passage
Load Check
Valve
Port A Port B
Control
Spool
Pilot
Valve
CONTROL VALVE
INITIAL MOVEMENT
Reduced
NFC Signal
When the operator begins to move the joystick to shift the control valve,...
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- 559
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Hệ thống thủy lực máy đào CATERPILLAR SERIE D - P7
Ngày tải lên :
23/10/2012, 14:11
... Implements
BOOM REGENERATION VALVE
SLOW BOOM DOWN
A - A
Low Boom Down
Pilot Pressure
AA
Check
Valve
Regen Spool
From Boom
Spool
To Boom
Spool
25
For a full BOOM DOWN, the lowering control valve ... of movement or position of the boom joystick a gradual change to boom priority
occurs.
Thus, boom priority is controlled by the position of the joystick for the boom and boom priority
automatically ... Implements
M
Drive
Pump
Idler
Pump
Boom 1
Spool
Boom 2
Spool
BOOM CIRCUIT WITH LOWERING
CONTROL VALVES
BOOM UP
Boom Up Pilot
Boom Lowering
Cont rol Valve
Boom Regen
Valve
Boom Rod End
Line Relief Valve
Straight...
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- 593
- 7
Hệ thống thủy lực máy đào CATERPILLAR SERIE D - P8
Ngày tải lên :
23/10/2012, 14:11
... swing pilot oil pressure from the swing pilot control valve directly corresponds to the
amount of movement or position of the swing joystick. The swing pilot oil pressure from the
pilot control valve ... the solenoid valve. The spool blocks
pilot oil flow from flowing to the brake piston. Oil in the brake piston is open to the tank
through the swing brake spool.
The parking brake spring moves ... swing joystick is moved to SWING, the swing control valve shifts. The supply oil
from the idler pump flows through the swing control valve into the motor head and then to the
motor rotary group....
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Hệ thống thủy lực máy đào CATERPILLAR SERIE D - P9
Ngày tải lên :
23/10/2012, 14:11
... is controlled by the two speed
travel solenoid valves. The displacement change valve controls the supply oil to shift one of
the motor actuators.
Motor Actuator Piston: An actuator piston is ... built into the travel pilot control valve which allows the operational
speed of the travel lever/pedal to respond only to intended movements of the operators foot.
The dampening function also prevents ... moves back to the
right and blocks the supply oil to the actuator piston and drains the oil to the actuator piston to
the tank. Spring force upstrokes the motor for slower speed and higher torque.
As...
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- 485
- 7
Hệ thống thủy lực máy đào CATERPILLAR SERIE D - P10
Ngày tải lên :
23/10/2012, 14:11
... pressure control solenoid is at the maximum software controlled PWM
signal, the pressure control spool is unseated by the solenoid, allowing some of pump supply
oil to drain to the tank. This action ... chamber of the pump
control spool and the pump control spool shifts up due to the higher pump supply pressure.
When the pump control spool moves up, pump flow is directed to the large actuator. ... Systems
Eight iron bars (6) are cast into each of the castelations of the aluminum reservoir cover. These
iron bars act as "opposite poles" to the electro-magnetic fluid control valve armature...
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Sơ đồ thủy lực máy đào HuynDai 170W
Ngày tải lên :
25/10/2012, 09:17
... SECTION 3 HYDRAULIC SYSTEMSECTION 3 HYDRAULIC SYSTEM
Group 1 Hydraulic Circuit
3-1
Group 2 Main Circuit
3-2
Group 3 Pilot Circuit
3-5
Group 4 Single Operation
3-14
Group ...
3-2
Group 3 Pilot Circuit
3-5
Group 4 Single Operation
3-14
Group 5 Combined Operation
3-29
...
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- 1.5K
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Sơ đồ thủy lực máy đào CAT 320 - P1
Ngày tải lên :
25/10/2012, 11:45
... Regeneration Valve
Stick I Control Valve
Swing Control Valve
Left Travel Control Valve
Straight Travel Control Solenoid
Right Travel Control Valve
Attachment Control Valve
Bucket Control Valve
... Valve
Bucket Control Valve
Boom I Control Valve
Stick II Control Valve
Pilot Control Valve (Swing and Stick)
Pilot Control Valve (Boom and Bucket)
Stick Unloading Valve
Line Relief Valve ... Control Valve (Travel)
Stick Drift Reduction Valve
Main Control Valve
Boom Drift Reduction Valve
Pressure Switch
Pressure Switch
Negavtive Flow Control Relief Valve
Boom II Control Valve
...
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- 1.1K
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Sơ đồ thủy lực máy đào CAT 320 - P2
Ngày tải lên :
25/10/2012, 11:45
...
z
The main control valve controls the negative flow control signal. For more information on the negative flow control operation, refer to
Systems Operation, "Negative Flow Control".
z
The ... for describing the operation of individual control valves.
When the joysticks and/or travel levers/pedals are in the NEUTRAL position, pilot oil does not flow to port (8) and port (9). Spool ... tung,bao duong\Schematic\Hydraulic sys\Main Control Valve.mht
Introduction
(aR4) Pilot port at boom I control valve (BOOM LOWER)
(aR5) Pilot port at stick II control valve (STICK IN)
(aL1) Pilot...
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