14L Motor Grader Implement Electronic Control System Caterpillar

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Series M Series Motor Grader

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Implement ECM Control System Components (S/N: B941-192)

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Implement ECM 2 and Implement ECM 3 Control System Components (S/N: B941-192)

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Implement ECM Control System Components (S/N: B94193-UP)

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Implement ECM 2 and Implement ECM 3 Control System Components (S/N: B94193-UP)

The Series M Series Motor Graders are equipped with an implement system that is electronically controlled and hydraulically actuated. The machine is equipped with fully electronic left and right joysticks. The joysticks enable the operator to send commands to each Implement ECM. An attachment "auxiliary control" pod is installed on machines that are equipped with auxiliary hydraulic valves. The "auxiliary control" pod is used by the operator to provide Implement ECM control of the attachments. The Implement ECM controls the following hydraulic systems:

• The control system of the blade with operator input from the left joystick and the right joystick.

• The blade constant down force system with operator input from the blade constant downforce enable switch. (On 16M only)

• The primary steering system with operator input from the left joystick

• The system for the articulation of the machine with operator input from the left joystick.

• The front wheel lean system with operator input from the left joystick.

• The auxiliary control system attachment with operator input from the auxiliary control pod.

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Implement and AWD Control Modules (view: looking to rear of cab with seat removed) (1) Implement ECM (2) Implement ECM 2 (3) AWD ECM (models equipped with all wheel drive) (4) Implement ECM 3 (attachment)

In order to control the systems, all machines are equipped with two Implement Electronic Control Modules (ECM). With the addition of auxiliary attachments, a third Implement ECM can be installed on the machine. The Implement ECM modules are mounted on the inside of the cab and behind the operator's seat.

The three Implement ECM modules are listed below along with a brief description of the functions that each ECM controls.

Implement ECM (MID 082) - The Implement ECM is the main Implement ECM. The Implement ECM is installed on all Series M Series machines. All diagnostic codes are activated by this control module under the module identifier MID 082. The other implement control modules communicate diagnostics over the "SAE J1939" data link to the Implement ECM. The Implement ECM will activate diagnostic codes and activate event codes when necessary. The Implement ECM controls the primary steering functions and most of the blade control functions. The Implement ECM receives operator input from the left joystick and from the right joystick in order to control the steering and blade functions.

Implement ECM 2 (MID 145) - Implement Control #2 (MID 145) is the second implement control. Implement Control #2 is installed on all Series M Series machines. Implement Control # 2 controls some blade functions. The Implement Control # 2 also receives input from the attachment "auxiliary control pod". The Implement Control #2 controls the attachment auxiliary valves 1 and 2 when equipped on the machines.

Implement ECM 3 (MID 147) - The third implement control is only equipped on machines that have the attachment auxiliary hydraulic valves 3, 4, 5 and 6 installed. The Implement Control # 3 is used to control the solenoid outputs for these valves.

During machine operation, the Implement ECM modules receive input data from a variety of components in the implement system. The ECM makes decisions that are based upon the state of these inputs and the operating parameters that are stored in the ECM memory. Input devices in the implement control system include the following:

• The left and right joysticks

• The attachment "auxiliary control pod"

• The auxiliary lever 6 and/or 7 position sensor (Auxiliary lever 6 only used if auxiliary control pod is not installed)

• Other control modules on the machine via the Cat Data Link and the "SAE J1939" Data Link

• Various switches that include the "Operator Control" switches and the "Machine System Pressure" switches

• Various Machine System sensors that include position sensors, pressure sensors and temperature sensors

• The Cat "Electronic Technician" service tool through the service tool connector

The Implement ECM modules activate outputs to the solenoids. The solenoids control the implement system.