PN 57.4400.0100_020115 - Genie

Section 4Preventive Maintenance700 SeriesHow to check the drive beltPress down the belt with the thumb at the centre ofthe longest free length and check the deflection (A).With moderate thumb pressure - 45N (10 lbf) 4,5 kgf- the correct deflection of the belt is 10 mm (3/8 in).How to adjust the belt tensionCautions:• The alternator fitted to the 700 Series engine isdriven by a drive belt of a specific design. Use onlya Perkins POWERPART drive belt. If this is notdone, an early failure of the belt may occur.•Do not loosen the setscrew (A1). If this setscrew isloosened, the thermostat housing to cylinder headseal could be broken and result in a leakage ofcoolant.1 Loosen the pivot fasteners (A3) of the alternatorand loosen the setscrew (A2) of the adjustment link.2 Change the position of the alternator to give thecorrect tension. Tighten the pivot fasteners of thealternator and the setscrew of the adjustment link.3 Check the belt tension again to ensure that it is stillcorrect. If a new belt is fitted, the belt tension must bechecked again after the first 25 hours of operation.Printed in England© Propriety information of Perkins Engines Company Limited, all rights reserved21352 51-19M-1-SM 01-29-02 57.4400.0100