Lubrication

NAPCO rotary gear pumps are designed with eight (8) easily accessible grease zerk fittings. Four of these zerk fittings allow grease to flow between the lip seals and high pressure seals on each shaft (two seal grease cavities on each shaft). Four other zerk fittings lubricate the bearings. The pump comes fully lubricated with NGL1 #2 grease and ready for use. ONCE THE PUMP IS IN OPERATION IT IS ABSOLUTELY CRITICAL THAT A REGULAR LUBRICATION PROGRAM BE FOLLOWED BY THE USER TO ALLOW THE PUMP TO OPERATE AS DESIGNED AND PREVENT PREMATURE FAILURE OF THE MOVING PARTS.