Operation Manual
Description
Quantity
'O' ring, product seal
or
Mechanical seal
'O' ring, seal housing
'O' ring, sleeve/shaft
'O' ring, sleeve/rotor
'O' ring, rotor nuts
'O' ring, front cover
Oil seal drive end
Oil seal gland end
2
2
2
2
2
2
1
1
2
7.0 Maintenance and inspection
Part description
7.1 Maintenance schedule
It is advisable to install pressure gauges on
both sides of pump as close as possible to the
ports so that any problems within the pump/
pipework will be highlighted.
Your weekly schedule should include:
Checking the
oil level
in the gearcase
Checking the
product seals
for leakage
and replace as necessary. The pump
has been designed to operate at a
maximum continuous discharge
pressure of 145 psi. However, it is
capable of withstanding discharge
pressures up to a maximum of 160 psi
intermittently. At pressures above 145
psi there is the possibility of leakage
from the primary seal, if this occurs and
the seal continues to leak at pressures
below 145 psi, it is an indication that the
primary seal may be permanently
damaged and should therefore be
replaced at the earliest opportunity.
Checking the
oil seals
for leakage and
replace as necessary at the earliest
opportunity.
Check
pumping pressures.
In certain
operational circumstances the pump
will pose a thermal hazard and as such
should not be touched during operation.
After shutdown the pump unit should be
allowed time to cool.
7.2 Recommended spare parts
The following table details the recommended
spare parts that should be retained within
your maintenance schedule. (Refer to the
Exploded drawings and parts list in section 16
of this manual).
Refer to spare parts manual for
item numbers.
7.3 Maintenance tools
The following lists the maintenance tools
required when working on the pump.
Dismantling the pump head
You will need:
Spanners
Socket set
Plastic block
Soft mallet
Cleaning hose
Rotor removal tool (supplied
with pump)
6" Prybar (i.e. Snap-On Pt.
650)
Dismantling the gearbox
You will need - A fully equipped work shop in
addition to the above.
STP125 Page 16
