14 RENR5042-02 Troubleshooting Section For example, a code of 150-OR-14 on the schematic would indicate that the orange wire in circuit 150 is a 14 AWG wire. If the gauge of the wire is not listed, the wire is 16 AWG. Conversion of AWG Numbers to Metric Measurements Table 6 shows the various AWG numbers that are used for the wires. The metric equivalent for the diameter of each AWG number are also shown. Table 6 g01143634 Illustration 5 Service welding guide (typical diagram) 3. Connect the welding ground cable as close as possible to the area that will be welded. Components which may be damaged by welding include bearings, hydraulic components, and electrical/electronic components.
Welding on a Machine that is Equipped with an Electronic Control System (ECM) Proper welding procedures are necessary in order to avoid damage to the engine’s electronic control module, sensors, and associated components. The component that requires welding should be removed. When welding on a machine that is equipped with an ECM and removal of the component is not possible, the following procedure must be followed. This procedure provides the minimum amount of risk to the electronic components. 4. Protect the wiring harness from welding debris and from spatter. 5. Weld the materials by using standard welding methods.
NOTICE Do not ground the welder to electrical components such as the ECM or sensors. Improper grounding can cause damage to the drive train bearings, hydraulic components, electrical components, and other com- ponents. Clamp the ground cable from the welder to the com- ponent that will be welded. Place the clamp as close as possible to the weld. This will help reduce the pos- sibility of damage. 1. Stop the engine. Turn the keyswitch to the OFF position. 2. Disconnect the negative battery cable from the battery. If a battery disconnect switch is installed, open the switch.
Metric Equivalents for AWG Numbers AWG Number Diameter (mm) AWG Number Diameter (mm) 20 0.8 14 1.6 18 1.0 12 2.0 16 1.3 4 3.2