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TIRE & RIM GP 5088644 - Caterpillar



5088644 TIRE & RIM GP Caterpillar parts TIRE
Rating:
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Alternative (cross code) number:
CA5088644
508-8644
5088644
Caterpillar 5088644 TIRE & RIM GP

Buy TIRE & RIM GP 5088644 Caterpillar genuine, new aftermarket tractor parts with delivery

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Illustration 29 g01158530Note: The values in Table 21 are for bench testing only. Values may not represent parameters for machine systems specifications.
Table 21
Rated Voltage 24 VDC
Coil Resistance 32.0 3.2Ω (T=20° C) The On/Off solenoids include:
Swing brake solenoid
Travel speed solenoid
Hydraulic lock solenoid
Boom side warm-up solenoid
Stick side warm-up solenoid
Stick drift reduction solenoid
Boom drift reduction solenoid
Reverse fan solenoidProportional Hydraulic Modulation Valve (PHMV)
Illustration 30 g03345346Proportional hydraulic modulation valves are used on the ACS main control valve in order to control stem displacement. Each Independent Metering Valve (IMV) section contains two, pump-to-cylinder (P-C) proportional hydraulic modulation valves (PHMV) and two, cylinder-to-tank (C-T) PHMV's which are electrically controlled.Proportional Reducing Solenoid Valve
Illustration 31 g02703776Note: The values in Table 22 are for bench testing only. Values may not represent parameters for machine systems specifications.
Table 22
Current Range 0 mA ~ 700 mA
Coil Resistance 11.5 0.5Ω (T=20° C)
Illustration 32 g02263554
A - Port pressure (kPa) vs Current (mA)
The proportional reducing solenoid valve is used to control pilot oil flow. The P-Port is blocked and does not allow pressure to the A-port. Therefore, the machine ECM must apply current to the PRV in order to send pressure to the A-port of the PRV.The PRV's include:
Power shift pressure PRVReverse Proportional Reducing Solenoid Valve
Illustration 33 g02304374
Valve cutaway, hydraulic schematic symbol, and electrical connector designation
Note: The values in Table 23 are for bench testing only. Values may not represent parameters for machine systems specifications.
Table 23
Current Range 0 mA ~ 700 mA
Coil Resistance 11.5 0.5Ω (T=20° C)
Illustration 34 g02304414Reverse PRV's have the P-port open to the A-port with no current applied. Therefore, the machine ECM applies current to the PRV in order to decrease the pressure at the A-port.The reverse PRV's include:
Negative flow control PRV (front pump)
Negative flow control PRV (rear pump)Data Link
Cat Data Link
Illustration 35 g02694217
Schematic of the “Cat Data Link” Circuit
The Cat Data Link is an input and an output of the Machine ECM. The Cat Data Link connects to the Machine ECM at connector contact J2-16 and J2-25. The data link is designed to carry communications between the controller and the monitor. The data link is not a visible component. The data link consists of internal control circuits and a harness wiring. The data link is bidirectional. The controller can receive information and the controller can send information through the data link. The controller sends information about the fuel level, temperature of the engine coolant, and many other signals to the monitor panel.CAN Data Link
Illustration 36 g02694576
Schematic of the "CAN Data Link" Circuit
The CAN data link is used for communication between the following modules: Machine ECM, Switch Panel and Monitor. Two 120 Ohm terminating resistors must be installed in the wiring harness in order for the CAN data link to function properly.Action Alarm
The action alarm SOUNDS in order to alert the operator when a high emergency condition is present. For example, the engine oil pressure decreases below a set value.Travel Alarm
The travel alarm SOUNDS in order to alert the area that the machine is moving.

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