6 Belt drives Servicing and maintenance works 4 z Remove screw and lock nut. z Move the generator over the setting screw in di- rection (B) until the V-belt is slack. z Remove belt and fit new one. z Move the generator over the setting screw in di- rection (A) until the V-belt has attained the cor- rect tension. z Tighten screw and lock nut again. © 2009 53 1 2 A B 3 Change generator V-belts 1 Setting screw 2 Lock nut 3 Screw 4 V-belts z Lower indicator arm (1) into the measuring de- vice. z Place guide (3) between two belt pulleys on the V-belt (2). The stop have to be at the side. z Press the button (4) at right angles to the V-belt (2) evenly until you hear or feel the spring snap in.
z Lift the measuring device carefully without alter- ing the position of the indicator arm (1). z Read the measured value at the point of inter- section (arrow), scale (5) and indicator arm (1). z If necessary, re-tension belt and measure again. Belt tension measuring device (order number: 8115) can be obtained from your DEUTZ partner. Checking the belt tension Tools Only carry out work on the belt drive with the engine at a standstill! Always change both belts in sets in case of wear on the double belts or damage to one V-belt. After repair work: Check that all guards have been replaced and that all tools have been removed from the engine. z Check the whole belt drive visually for damage.
z Renew damaged parts. z Remount protective devices if necessary. z Pay attention to correct fit of new belts, check the tension after running for 15 minutes. Checking the belt drive