Maintenance 5 Bleeding the fuel system Fuel in the injection system is under pressure. Carry goggles and rubber gloves if you work on the injection pump. If you are hit by a high-pressure fuel beam, immediately go into medical treatment. For maintenance operations, park and secure machine as described in chapter "5.1. Maintenance guide" on page 5-2. Bleeding the low pressure side: 1. Loosen the vent screw (1) on the injection pump. 2. Move the pump button (2) on the fuel filter until there are no more bubbles in the fuel flowing from the vent screw. 3. Retighten the vent screw (1). Bleeding the high pressure side: Danger of injury!
When the engine is running, you may hurt yourself on the movable components inside the engine room. 1. Crank the engine (max. 30 seconds) and vent the lines con secutively, until the engine is running smoothly. NOTE If the fuel system has run empty during driving, or if repairs or maintenance operations are to be performed, it is neces sary to bleed the system. WA90-5 – VEAM270100 5-55 DANGER DANGER WARNING WARNING