DURCO MARK 3 ISO FRAME MOUNTED ENGLISH 85392719 06-12
Page 23 of 52
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Food grade grease, when applicable:
5.2.3.1
NSF H1 Klubersynth UH1 64-62 is the food grade
grease option and it is NLGI grade 2.
5.2.4
Recommended fill quantities
Refer to section 5.2.2, Bearing sizes and capacities.
5.2.5
Lubrication schedule
Refer to section 6.2.3
5.3 Impeller clearance
The impeller clearance is set in the factory. The
clearance may require adjustment because of high
liquid temperature. If piping attachment alter the
impeller clearance then correct piping. For setting
instructions see section 6.7, Setting impeller
clearance.
5.4 Direction of rotation
Serious damage can result if the pump
is started or run in the wrong direction of rotation.
The pump is shipped with the coupling element
removed. Ensure the direction of rotation of the motor is
correct before fitting the coupling element. Direction of
rotation must correspond to the direction arrow.
If maintenance work has been carried
out to the site's electricity supply, the direction of
rotation should be re-checked as above in case the
supply phasing has been altered.
5.5 Guarding
Guarding is supplied fitted to the pump set.
In member countries of the EU and EFTA, it is a legal
requirement that fasteners for guards must remain
captive in the guard to comply with the Machinery
Directive 2006/42/EC. When releasing such guards,
the fasteners must be unscrewed in an appropriate
way to ensure that the fasteners remain captive.
Whenever guarding is removed or disturbed ensure
that all the protective guards are securely refitted
prior to start-up.
5.6 Priming and auxiliary supplies
5.6.1
Filling and priming, non self primer casing
Ensure inlet pipe and pump casing is
completely full of liquid before starting continuous
duty operation.
Priming may be carried out with an ejector, vacuum
pump, interceptor or other equipment, or by flooding
from the inlet source.
When in service, pumps using inlet pipes with foot
valves may be primed by passing liquid back from the
outlet pipe through the pump.
5.6.2
Filling and priming, self priming casing
Fill the pump with liquid to be pumped,
or compatible liquid, via the filling hole, before starting
continuous duty operation.
The pump has self-priming action for which a separate
air pump is not normally required.
Pump housing
filling hole.
When the initial fill
reaches the suction
pipe, excess liquid will
flow out of the casing.
Pump size
Initial fill litre (US gal.)
40-40-125
2.5 (0.65)
80-80-125
6.0 (1.60)
40-40-160
3.0 (0.80)
80-80-160
6.5 (1.75)
40-40-200
5.0 (1.30)
65-65-200
8.5 (2.25)
80-80-250
12.0 (3.20)
5.6.3
Auxiliary supplies
Ensure all electrical, hydraulic,
pneumatic, sealant and lubrication systems (as
applicable) are connected and operational.
Summary of Contents for Durco Mark 3
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