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COUPLING AS- 3236209 - Caterpillar

3236209 COUPLING AS- Caterpillar parts COUPLING
Alternative (cross code) number:
Caterpillar 3236209 COUPLING AS-
Weight: 0.25 pounds 0 kg.

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Power Distribution
Illustration 1 g06058285
Tamper System Electrical Schematic
(1) Power distribution module
(2) Fuse"FD6"
(3) Fuse"FS8"
(4) Fuse"FD5"
(5) Tractor to screed harness
(6) Screed ECM
(7) Tamper solenoid
(8) Tractor CAN lines
(9) Left screed operator station
(10) Left display
(11) Left keypad
(12) Left rotary multifunction dial
(13) Right rotary multifunction dial
(14) Right keypad
(15) Right display
(16) Right screed operator station
(17) CAN"C" resistor
(18) CAN"B" resistor
(19) CAN"A" resistorThe machine key switch must be on for the tamper system to receive power. When the machine key switch is in the ON position, power is available to the switched fuses in the power distribution module (PDM) (1). Power is also available to fuses through the delayed switch power (DSP) relay inside the PDM. Switched fuses are identified as"FS" fuses. Fuses powered through the DSP relay are identified as"FD" fuses.Delayed switched power transfers from fuse"FD6" (2) to contact"C1-18" of power distribution module (1). From connector"C1", power transfers to terminal"J1-31","J1-39", and"J1-47" of screed ECM (6). The voltage input from fuse"FD6" provides main power for the screed ECM. The ECM is grounded at terminal"J1-13","J1-23","J1-57", and"J1-70". Fuse"FD6" is rated 20 amp.Delayed switched power transfers from fuse"FD5" (4) to contact"C1-8" of power distribution module (1). From connector"C1", power transfers to terminal"12" of left display (10) and right display (15) on screed operator stations (9) and (16). The voltage input from fuse"FD5"provides the power for the displays. Fuse"FD5" is rated 20 amp.Switched power transfers from fuse"FS8" (3) to contact"C1-14" of power distribution module (1). Connector"C1" transfers power to terminal"J1-1" of screed ECM (6), and to terminal"11" of left and right displays (10) and (15). Power also transfers to terminal"2" of left keypad (11) and right keypad (14). The voltage input from fuse"FS8" provides the wakeup signal for the components. Fuse"FS8" is rated 10 amp.Operation Parameters
Once basic tamper settings and parameters are set, the operational parameters required to be met for the tamper to operate are as follows:
Machine power ON
Key switch ON
Engine running
Tamper selected ON
AUTOMATIC or MANUAL selected (default automatic)
Tamper rate or tamper rpm selected
Implement forward pave mode
Machine forward movement
Tamper delay timer expiredWhen the above parameters are met, screed ECM (6) energizes tamper solenoid (7). The system controls the solenoid current to maintain the tamp rate setting in automatic mode. In manual mode, the system controls the desired ramp rate to reach the desired tamper rpm.The parameter for implement forward pave mode is set to true when operating in the pave mode with the propel lever in the forward range.Note: The machine is not required to be moving and the park brake can be in the ON position for this operating parameter to be true.Screed ECM (6) requests tamper type configuration from the machine ECM. The tamper type configuration is stored on the machine ECM. The ECM characterizes the type of tamper pump that is installed on the tractor.Screed ECM (6) uses the tamper type configuration to determine the pump size used for calculating tamper bar motor speed.Switches, Dials, and Indicators
The mode selector switch on displays (10) and (15) allows the operator to choose the control function of rotary multifunction dial (12)

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