EPA07 MBE 4000 SERVICE MANUAL 1.1 ENGINE TRIM COVERS AND FRAMES The engine trim covers enclose the unit pumps and high pressure fuel lines on the left side of the engine. 1.1.1 Removal of Engine Trim Covers removal steps are as follows: 1. Loosen the hose clamp at the air inlet hose at the air compressor and move hose out of the way. 2. Disconnect the 31–pin vehicle harness connector at the front trim cover by pushing on tab of 31–pin connector and rotating the connector counterclockwise. 3. Remove the two engine side trim covers by removing six bolts securing the cover to the air intake manifold. See Figure 1-1. 1. Front Side Trim Cover 6. Air Intake Manifold 2. Bolts 7. Rear Trim Cover 3.
Front Trim Cover 8. Rear Side Trim Cover 4. Air Intake Manifold Bolts (qty 12) 9. Bolts (qty 5) 5. Gaskets (qty 6) 10. Trim Cover Frame Figure 1-1 Engine Trim Covers and Frame 4. Remove the rear engine trim cover by removing the two bolts securing it to the rear of the air intake manifold. See Figure 1-1. All information subject to change without notice. DDC-SVC-MAN-0026 Copyright © 2011 DETROIT DIESEL CORPORATION 1-3