Aussie Blasters Service Fundamentals (pdf - 4.30MB) - Aussie Pumps

SERVICE INFORMATIONVALVE ASSEMBLIES• All inlet and discharge valves can be servicedwithout disrupting the inlet or discharge plumbing.The inlet and discharge valves are identical in allmodels.• To service any valve remove valve cap and extractvalve assembly.• Examine o-rings and replace if there is anyevidence of cuts, abrasions or distortion.• Remove valve assembly (retainer, spring, valve,valve seat) from valve cavity.• Only one Aussie Pumps valve kit is required torepair all valves in the pump. The kit contains o-rings, valve seats, poppets, springs and retainers.• Install new o-ring in valve cavity.• Insert assembly into valve cavity.• Replace valve cap and torque to specifications.REMOVING MANIFOLD HEAD• Remove the fasteners retaining head• Separate head from crankcase. It may benecessary to tap head lightly with soft mallet toloosed. Care should be taken not to damageplungers when sliding head from crankcase.• The V-packing assemblies may come off withthe head. Examine plungers. The surfaceshould be smooth and free from scoring andpitting. If not, replace.• Replace manifold head and torque tospecifications using the sequence shown below:TORQUE SEQUENCE FOR TIGHTENING HEADInstall all head bolts fingertight. Torque to 14 Nm insequence as shown, then retorque to specificationsfollowing the same sequence10Aussie Aussie Pumps Pumps Bertolini Bertolini Pumps Pumps Service Service Guidelines Guidelines – July - 2011 February 2003