Hardi COMMANDER Plus Series Operator's Manual

Contents

46 HARDI® COMMANDER OPERATOR’S MANUALEABB1CDA = Valve CoverB = ValvesB1 = White Flap ValvesC = O-ringsD = Diaphragm BoltE = DiaphragmOccasional maintenanceMaintenance and replacement intervals for the nextpoints depend very much on conditions under whichsprayer operates, and are therefore impossible tospecify.Pump valves and diaphragms replacement(363/463 pumps)NOTE! It is recommended that if one or morediaphragms and/or valves need replacing they allshould be replacedDiaphragm pump overhaul kit (valves, seals, dia-phragms, etc.)Pump model HARDI® part No.363 750342463 750343Changing valves1 Remove the valve covers (A). Before changing thevalves (B & B1) note their orientation so they arereplaced correctly.2 The two white flap valves (B1) must be placed in thevalve openings as shown. It is recommended to usenew O-rings (C) when changing or checking thevalves.Changing diaphragms1 With the valve covers removed as explained above,remove the diaphragm bolts (D).2 The diaphragms (E) may now be changed.3 If fluids have reached the crankcase, re-grease thepump thoroughly. Also check the drain hole at thebottom of the pump is not blocked.Torque Settings for 363/463 pumpsPump Valve Cover DiaphragmModel Ft/lb(Nm) Bolt Ft/lb(Nm)363 50 (70) 45 (60)463 65 (90) 60 (80)1 Ft/lb = 1.36 NmIMPORTANT! Before tightening the 4 bolts for thediaphragm cover B the diaphragm must be positionedbetween center and top to ensure correct sealingbetween diaphragm pumphousing and diaphragmcover. Turn crank shaft if necessary.correctwrongNOTE! When tightening diaphragm cover it mustbe ensured that diaphragm is in neutral or out.If the diaphragm is in negative, the edge of thediaphragm is not seated correctly in the dia-phragm cover. This will damage the diaphragm soit cannot seal correctly after having been dis-mantled and re-assembled.You must rotate the pump until the diaphragm isneutral or out.4 Reassemble with torque settings shown inTorquesettings (below).Maintenance