SHIM 1987842 - Caterpillar

The TecJet 50 can be installed upstream or downstream of the turbocharger. However, installation of the TecJet 50 downstream of the turbocharger is only possible if the boost pressure is less than 200 kPa (29 psi).
CAUTIONEnsure that all dirt has been blown out of the gas stream, upstream of the TecJet 50, before installing the TecJet 50 gas control valve. The pre-fitted TecJet 50 filter is only for the purpose of filtering welding deposits and Teflon tape particles during the initial start-up.
CAUTIONBefore installation of the TecJet 50 to the gas pipe, prepare the gas pipe with two flanges which are the same size as the flanges on the TecJet 50 (see Figure 2-8) for further details.
Installation of an upstream filter is highly recommended for all applications. The preferred TecJet 50 filter is 50?m.* Install the TecJet 50 between the two flanges that are fitted onto the gas pipe (see Figure 2-8).* Place a gasket between the TecJet 50 flange and the flange on the gas pipe.* Connect the TecJet 50 flange to the flange on the gas pipe on both sides, according to DIN 2501 (DN80, PN 10/16) for Europe, or to ANSI B (16,5 3", 125/150 lb) from North America (see Figure 2-8).* The TecJet 50 should preferably be supported using a bracket. Use the four screw holes (M8x16) located at the bottom of the housing to install the TecJet 50. The TecJet 50 must be installed horizontally, with the electronics at the top-side, and the connector located at the outlet side of the valve. The centerline of the TecJet 50 should be parallel to the centerline of the crankshaft in order to avoid severe vibration levels in the moving direction of the TecJet 50 metering piston (see Figure 2-8).
Figure 2-8. TecJet 50 External Dimensions (8407-105)
Figure 2-9. TecJet 50 Wiring Diagram (8407-105)