220/380V, 3 Phase Engine Specification Cummins X1.7G1/X2.5G1/X2.5G2 In-line direct injection 2/3-cylinder diesel engine. Type Water cooled, four cycle, naturally aspirated Construction Two valves per cylinder, forged steel crankshaft and connecting rods, cast iron block. Starting 12 volt negative earth. Battery charging alternator 36 amp on ...