Personality Module Installation Guidelines for Bulk Hauler/Remote Applications{1902} Caterpillar

Personality Module Installation Guidelines for Bulk Hauler/Remote Applications{1902}

Usage:

3176 Truck Engine (7LG1-Up),
3176B Truck Engine (9CK1-Up),
3406E Truck Engine (5EK1-Up

Introduction

This Special Instruction contains the necessary procedures and information to install a personality module (if required) and associated hardware for bulk hauler/remote applications.

Reference: 3176 Electronic Troubleshooting

Reference: 3176B and 3406E Electronic Troubleshooting

Features/Effects of Bulk Hauler Personality Module

Quicker Acceleration For ACCEL and RESUME

The 3176 (7LG) Bulk Hauler Personality Module and standard 3176B (9CK) and 3406E (5EK) Personality Module provides a faster PTO Engine RPM ramp rate (ACCEL/DECEL), compared to the standard 3176 (7LG) Personality Module.

The 3176B (9CK) and 3406E (5EK) Personality Module provides the Bulk Hauler feature as standard and has a customer specified parameter PTO Engine RPM ramp rate programmable from 5 rpm/sec to 1000 rpm/sec.

The 3176 (7LG) Bulk Hauler Personality Module provides a set 500 rpm/sec ramp rate.

Reduce Cycle Times

The increased ACCEL/DECEL rate can reduce cycle times for the application because the engine will reach the desired engine speed faster than with a standard 3176 (7LG) Personality Module (50 rpm/sec) ramp rate.

Eliminate Additional Throttle Sensors

The increased ACCEL/DECEL may eliminate installation of additional throttle position sensors.

The increased ACCEL/DECEL provided with the Bulk Hauler feature may be sufficient to replace an additional throttle position sensor, previously necessary because of the slower (50 rpm/sec) ramp rate for the standard 3176 (7LG) Personality Module.

Ability To Disable Cab Throttle Sensor While In PTO

When the hardware is correctly installed, the cab throttle can be disabled while in PTO Mode without logging an Invalid Throttle Signal (PID-FMI-91-08, Flash Code, 32) diagnostic code.

While the cab throttle is disabled in PTO Mode, the Bulk Hauler feature will indicate an ACTIVE Invalid Throttle Signal (PID-FMI-91-08, Flash Code, 32) diagnostic code, but it will NOT be logged while in PTO mode.

A standard 3176 (7LG) Personality Module would indicate an ACTIVE and LOG an Invalid Throttle Signal (PID-FMI, 91-08, Flash Code, 32) diagnostic code.

Limp Home Mode Removed

On standard 3176 (7LG) Bulk Hauler Personality Modules, the engine has the capability to use the CRUISE/PTO SET/RESUME switches (with the CRUISE switch in the ON position) to control engine speed when an Invalid Throttle Signal (PID-FMI, 91-08, Flash Code, 32) diagnostic code is ACTIVE.

This feature is known as Limp Home and allows the vehicle to proceed to the customer specified Vehicle Speed Limit and Engine RPM at Vehicle Speed Limit.

The Bulk Hauler feature removes this capability.

With the Bulk Hauler feature the Limp Home is limited to the customer specified PTO Vehicle Speed Limit (1 - 15 MPH) and PTO RPM Limit.

Reduce Change Of Engine Induced PTO Hydraulic Pump Damage

The ability to disable the cab throttle position sensor while the PTO driven device is in use will prevent the throttle position sensor from overriding the customer specified PTO RPM Limit.

NOTE: This is important if a PTO driven pump can be damaged due to engine over-speed.

Personality Module Availability

NOTE: The 3176B (9CK) and 3406E (5EK) Personality Module provides the Bulk Hauler feature as standard.

Installation And Operation Options

If the vehicle application requires engine PTO operation using non-standard CRUISE/PTO switch wiring, special wiring considerations may be necessary.

Reasons for special wiring considerations include:

* Engine PTO operation simultaneous with PTO driven device activation

* Disabling of cab throttle position sensor to prevent PTO device overspeed

* Out-of-the-cab engine PTO control .. etc.

Essentially, any operation where the cab dash cruise switches are insufficient.

The wiring complexity for these applications varies with the level of control necessary at the second location.

The special wiring considerations may be installed as a complete system or as single systems based on application.

Variable PTO Mode Engine Speed Option

Illustration 2 .. 3176B (9CK) and 3406E (5EK) Variable PTO Mode Engine Speed Option

The diagrams shown in Illustration 1 .. 3176 (7LG), Illustration 2 .. 3176B (9CK), and 3406E (5EK) are intended to provide a second station capable of ON/OFF, SET/RESUME, and throttle DISABLE.

In this example, the cab throttle position sensor is grounded while in PTO Mode.

This scenario assumes the necessary interlocks are in place to allow the PTO operation.

The four switches labeled CAB-REMOTE SELECTION in the upper block should switch simultaneously. These switches could be air switches (as shown), relays, or toggle switches, depending on the application, activating simultaneously with the entire PTO operation.

The PTO Interlock switch should be in place to provide operation only under the specific conditions required for the PTO operation (shown as air switch).

The PTO Interlock switch should be set up to activate separately from the CAB-REMOTE SELECTION switch(s).

Using a parking brake or neutral switch for the PTO Interlock eliminates use of PTO/extended idle using the cab cruise switches for a stationary vehicle. These features (switches) can be removed as appropriate.

NOTE: Caterpillar recommends these switches and all components used in these circuits have Sealed-Gold contacts.

Refer to Gold Contact Switch Part Numbers in this instruction.

3176 (7LG), 3176B (9CK) and 3406E (5EK)

NOTE: All connections to (-) Battery for 3176 (7LG) or Sensor Common for 3176B (9CK) and 3406E (5EK) MUST be made to the specified locations.

3176 (7LG7500 - Up)

On 3176 engines 7LG7500 - Up (-) Battery MAY be connected to P7 Pin 6 INSTEAD of P7 Pin 2.

NOTE: This connection must NOT be made to cab or other vehicle grounds.

Single PTO Mode Engine Speed Option

Illustration 4 .. 3176B (9CK) and 3406E (5EK) Single PTO Mode Engine Speed Option

The diagrams shown in Illustration 3 .. 3176 (7LG) and Illustration 4 .. 3176B (9CK) and 3406E (5EK)) are intended to provide Engine PTO Operation simultaneously with the PTO system activation.

In this Illustration, the cab throttle position sensor is grounded, PTO On/Off set to ON, and SET (assuming it is programmed to SET/ACCEL) in the ACCEL mode all at once.

The engine will ramp up to the PTO/Extended rate Engine RPM Limit and stay at the limit while these inputs are grounded. The Cab throttle position sensor would also be disabled.

This scenario assumes the necessary interlocks are in place to allow the PTO operation.

The three switches labeled CAB-REMOTE SELECTION in the upper block switch simultaneously. These switches could be air switches (as shown), relays, or toggle switches, depending on the application, activating simultaneously with the entire PTO operation.

The PTO Interlock switch should be in place to provide operation only under the specific conditions required for the PTO operation (shown as air switch).

The PTO Interlock switch should be set up to activate separately from the CAB-REMOTE SELECTION switch(s). These features (switches) can be removed as appropriate.

NOTE: Caterpillar recommends these switches and all components used in these circuits have Sealed-Gold contacts.

Refer to Gold Contact Switch Part Numbers in this instruction.