Viking Pump TSM280: Duralobe (Discontinued) - Manual (Page 32)

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4.0 Duralobe
®
Pump Dismantling and Assembly.
Before undertaking any work on the pump the recommended Shutdown
Procedure should be followed, refer to section 3.5, and site safety practices
must be observed.
While dismantling or assembling the pump it is essential to ensure that the
pump and/or components are secured to provide adequate stability.
Large pump components or sub assemblies should be lifted using suitable
devices. Use threaded holes for the attachment of lifting eyes where
appropriate.
During dismantling or before assembly all components should be inspected
for fit, wear and damage. If worn or damaged the components should be
replaced before re-assembly.
The position of all parts should be identified as they are removed to ensure
they are reinstalled in the same position.
Lipseals and o-rings are incorporated within the shaft cartridge assemblies
and the gearbox cover to contain the lubricant for the bearings and timing
gears. Regular inspection and correct maintenance of these items will ensure
that the lubrication is sustained and the pump maximum working life is
achieved. To ensure this, it is extremely important that care is taken when
removing and installing new o-rings and lipseals. When removing and
replacing lipseals ensure that the location bore for the outside diameter and
the seat for the back of the lipseal is not damaged as this may create a leak
path for the lubricant.
When removing lipseals or o-rings care should be taken to avoid cutting
or tearing the sealing faces as they pass over keyways, splines, threads
or other potentially sharp or abrasive edges. All lipseals and o-rings should
be carefully examined and if damaged in any way, replaced on assembly.
All o-rings and sealing lips of lipseals should be lightly lubricated with a
suitable lubricant (silicon grease, etc.) before installing.
When installing lipseals do not allow the rear face to come into contact with
bearings.
Prior to beginning assembly, ensure all parts are clean and free from burrs or
damage. Where a vice is to be used, it should have protective jaws to avoid
damage to components. Do not hammer or apply undue force to install or
position components.
All fasteners are required to be tightened to the required torque setting during
assembly, refer to section 5.2.
WARNING