Hardi ES 30 Operator's Manual

18 HARDI ® 12 VOLT ESTATE SPRAYER OPERATOR’S MANUAL8.0 STORAGEWhen the spraying season is over, you should devote some extra timeto the sprayer. If chemical residues are left over in the sprayer for longperiods, it can reduce the life of the individual components. Topreserve the sprayer and protect the components, carry out thefollowing off-season storage program:7.3 Pump MaintenanceTo disassemble pump head assembly, remove two screws A (Fig. 5)at front of pump. Rotate bearing cover so access notch is aligned withcam/bearing set screw on motor shaft. Loosen set screw with 1/8” allenwrench and slide pump head off motor shaft.To install replacement pump head, coat motor shaft with grease priorto assembly. Slide cam/bearing assembly over motor shaft. Align setscrew with dimple in motor shaft and tighten securely. Set screw mustcenter in shaft dimple for correct cam position, otherwise diaphragmmay be damaged. Rotate pump head to original position. Install topand bottom screws A (Fig. 5) and tighten.Operate pump to make sure flow and motor speed are normal. Ifoperation is noisy, flow is down or pressure is low, recheck cam/bearing set screw to make sure it is centered in the shaft dimple (SeeSection 11.0, page 23 for FLOJET PUMP BREAKDOWN).Fig. 5