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Figure 10 The low pressure pump (1) (LPP) is fitted on the rear of the gear casing through the flange (3). It receives power through the coupling (2) which meshes with the front teeth of the pump gear for the engine cooling circuit. It has the task of pumping the fuel at low pressure to the high pressure pump. 1. Mechanical low pressure pump — 2. Pump control coupling (LPP) — 3. Flange — 4. Safety valve — 5. By-pass valve (Components 4 and 5 are housed inside the pump). Main specifications Safety valve (4): - Valve opening pressure: 9,5 bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - Maximum pressure: 12 bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . By-pass valve (5): - Valve opening pressure: 1,5 bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103266 SECTION 2 - FUEL 13 VECTOR 8 ENGINES Print P2D32V001E Base - April 2006 Low pressure pump for G-DRIVE, and SPRINKLER applications |