FRAME AND CASE GROUP 3P3144 - Caterpillar

Electrical Specifications for the Remote Accelerator Pedal Position Sensor
Illustration 2 g00622029
161-8906 Accelerator Pedal Position Sensor The 161-8906 Position Sensor is required. The sensor is supplied with a Deutsch HD connector. The Deutsch part number is HD16-3-96S. The Caterpillar part number is 8T-8731 Connector Plug. The connecting harness will require a Deutsch HD receptacle connection. The Deutsch part number is HD14-3-96P. The Caterpillar part number is 8T-8732 .Note: The 161-8906 Position Sensor can not be powered by the 8 Volt power supply from the ECM. The 161-8906 Position Sensor must be connected and powered by 12/24 Volt battery voltage.Mounting the Accelerator Pedal Position Sensor
Illustration 3 g00638606
107-2281 Mounting Block The handle is not included.The 161-8906 Position Sensor can be attached to either an accelerator pedal assembly or a 107-2281 Mounting Block. The PTO Accelerator Assembly does not include the handle. A mechanical linkage can also be used in the application. Contact the vehicle OEM in order to obtain information on the part number for the accelerator pedal assembly.
Illustration 4 g00638604
Williams Controls, Inc. Pedal assembly
Table 1
Williams Controls, Inc. Part Numbers for Pedal Assemblies    
Supplier Part Number     Pedal Angle    
350415     28 degrees    
350416     35 degrees    
350417     45 degrees    Note: The 161-8906 Position Sensor provides a Pulse Width Modulated signal to the ECM that is constant frequency. The duty cycle varies with the position of the accelerator pedal. The "ECM Remote Throttle" input cannot be used with a vernier control cable assembly or as an input for the throttle switch. The "ECM Remote Throttle" input must receive the correct PWM signal during any of the following conditions: The ECM is in the ON position., The "PTO Configuration" is programmed to "Remote Throttle". and A diagnostic code is the result.Specifications for the Harness
The harness should be protected from the environment by using a conduit that is plastic or by other means. All of the wire for the harness should be 18 AWG or the wire should be larger. The wire for the harness should be SAE J1128. The wire for the harness should be SXL or GXL. Use an equivalent wire for the harness if one of the types is not available. The acceptable range for wire insulation outside diameter is 2.26 to 3.33 mm (0.089 to 0.131 inch). All ring terminals and all splices that are connected to the harness must be sealed. All ring terminals and all splices that are routed to the engine ECM must be sealed. Seal the terminals and splices with Raychem ES2000 shrink tubing or the equivalent in order to seal the ring terminals and the splices.
Table 2
Components for the 70 Terminal Connector for the ECM    
Description     Usage     Vendor and Vendor Part Number     Caterpillar Part Number    
70 Terminal Connector     Vehicle Harness for the OEM     AMP/776241-1     160-7689    
The AMP terminal is a gold socket contact that is stamped and formed.     Number 16 and Number 18 AWG SXL Wire
Number