Viking Pump TSM285: Classic+ Lobe Pump - Manual (Page 12)

SECTION TSM 285 ISSUE A PAGE 12 OF 36
- Follow recommended shutdown procedure.
Refer to section 3.5.
- For CP10 Pump – refer to Figure 15.
- For CP20 Pump – refer to Figure 16.
- Gradually loosen head retaining dome nuts
(1.03). Care should be taken as there may still
be residual product and pressure in the pump
head and as the dome nuts are loosened, this
will vent to atmosphere.
- Remove dome nuts (1.03).
Note: CP10 Pump Only - Do not rotate shafts
at this stage as the casing is held in place by
the head retaining dome nuts (1.03).
- Failure to observe this will result in damage to the pump.
- Remove head (1.01) using lever slots where necessary and
the head O-ring (1.02) or optional gasket (not shown).
- Remove rotor retainers’ (2.02) with socket supplied (not
shown).
4.0 CLASSIC+ DISASSEMbLy AND
ASSEMbLy
Before starting any work on the pump the
recommended Shutdown Procedure should be
followed, refer to section 3.5.
While disassembling 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 installed using suitable devices. Use
threaded holes for the attachment of lifting eyes
where appropriate.
During disassembly or before assembly, all components should
be inspected for fit, wear and damage. If worn or damaged the
components should be replaced.
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 gearbox
assembly 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 replacing 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, be replaced.
All O-rings and sealing lips of lipseals should be lightly lubricated
with an appropriate lubricant (suitable for application) before
installing.
When installing lipseals do not allow the rear face to come into
contact with bearings or other rotating parts.
Prior to beginning assembly, ensure all parts are clean and free
from burrs or damage. Where a vice is to be used then this
should be installed with 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 8.2.
The preferred method of installing bearing cones
is that they are heated to approximately 125°C
(250°F) prior to installation. During this operation
protective gloves should be used. Once bearing
cones are installed in the correct position they
should be allowed to cool before proceeding
with assembly. As an alternative, bearing cones
may be pressed into position providing the
proper equipment is utilized and the necessary
procedures are used to prevent component
damage.
Under no circumstances should bearing cones or cups be
hammered into position.
4.1 CP10, CP20 AND CP30 PUMP -
DISASSEMbLy AND ASSEMbLy
4.1.1 CP10, CP20 AND CP30 HEAD
AND ROTOR REMOVAL
figure 15
CP10 Exploded View of Casing and Rotor Assembly
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WARNING
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WARNING