Technical data

Aussie Pumps Bertolini Pumps Service Guidelines - February 2003

SERVICE INFORMATION

VALVE ASSEMBLIES

• All inlet and discharge valves can be serviced

without disrupting the inlet or discharge plumbing.

The inlet and discharge valves are identical in all

models.

• To service any valve remove valve cap and extract

valve assembly.

• Examine o-rings and replace if there is any

evidence of cuts, abrasions or distortion.

• Remove valve assembly (retainer, spring, valve,

valve seat) from valve cavity.

• Only one Aussie Pumps valve kit is required to

repair 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 be

necessary to tap head lightly with soft mallet to

loosed. Care should be taken not to damage

plungers when sliding head from crankcase.

• The V-packing assemblies may come off with

the head. Examine plungers. The surface

should be smooth and free from scoring and

pitting. If not, replace.

• Replace manifold head and torque to

specifications using the sequence shown below:

TORQUE SEQUENCE FOR TIGHTENING HEAD

Install all head bolts fingertight. Torque to 14 Nm in

sequence as shown, then retorque to specifications

following the same sequence

ussie Pumps Bertolini Pumps Service Guidelines – July 2011