HPXM USER INSTRUCTIONS ENGLISH 14983571 - 03/11
Page 16 of 48
Figure 4.2
4.3.1 Baseplate levelling
Before putting the unit on the foundation, thoroughly
clean the top of the foundation. Break off any loose
pieces of cement and roughen the top with a chisel to
afford a good hold for grout.
In case of installation over a steel structure (platform)
ensure that the top of the steel structure is cleaned
and degreased.
In order to obtain the parallelism and
flatness of pads required by API standard, baseplate
has to be properly levelled by levelling screws
provided on it and clamping the baseplate at the
foundation bolts only (For proper detailed procedure
refer to Chapter 5 para 3.9.4 of API RP 686 ).
Coupling bolting and spacer piece must
be removed from between the pump and driver half
couplings before lifting baseplate with pumping
element
When the unit is mounted directly on
structural steel framing, it should be located directly
over as near as possible to the main building
members, beams, or walls. A soleplate should be
bolted or welded to the steel frame to guarantee the
proper surface.
When lifting baseplate with pumping
element, sling baseplate from all lifting lugs provided.
Refer to Section 2.3.1
Prepare sufficient steel plates to be placed below
each baseplate jacking screw furnished with the
baseplate. The purpose of the plate is to spread the
load of the screw without crushing the concrete
below.
Not supplied
Figure 4.3
4.3.2 Method of levelling baseplate using wedges
or shims
a) Level the baseplate by using a machinist's level
on the machined surfaces of the pump and driver
pads. Levelling is best achieved by adjusting the
shim pack thickness under each holding bolt.
Carefully raise the baseplate by using either the
baseplate jacking screws provided or by levering
with a suitable pinch bar or by installing a low
level hydraulic jack.
b) Adjust the shim pack thickness and lower the
baseplate.
c) Repeat this procedure in a logical manner at
each bolt position until the baseplate is both
straight and levelled. A degree of 0.25 mm per
metre (0.0035 inch per foot) length is achievable
on most units with a maximum of 0.40 mm per
metre length (0.005 inch per foot).
d) In case of installation on steel structures (like
platforms) proceed with these extra steps:
•
Using a calibrated pin with a cone point mark
the centre of baseplate support pads
mounting holes on the soleplate.
•
Lift and move away the pump skid.
•
Drill and tap the soleplate fixing holes.
•
Replace the pump skid so that the soleplate
fixing holes align with the baseplate support
pads mounting holes.
•
Level the unit like done previously (see points
a, b, c).
e) When the baseplate is level, pull down the
foundation bolts so they are snug or tighten the
fixing bolts in case of installation on steel
