bids are invited for spares and service of debris filters worm planetary gear box part no. 21335 , screen basket bearing part no. 21508 , front end bearing part no. 21334 , rear end bearing part no. 21332 and 21365 , u seal part no. 21338 , shaft seal part no. 21340 , sleeve part no. 21331 , v ring part no. 21824 , debris outlet bearing part no. 218 , soft plastic for screen basket part no. 21509 , gear sealing screen bearing part no. 21310 , o ring for control drain part no. 21336 , o ring for gear motor drive part no. 21724 , drive shaft part no. 21701 , protection muff part no. 21702 , coupling part no. 21713 , double angular bearing part no. 21738 , o ring for gear sealing cover part no. 21336 , gear motor hand wheel , drive shaft sealing kit - disc, internal circlip, oil seal, external circlip , service charges for overhauling or maintenance of debris filter of size dn 2900 total quantity : 23