Disassembly And Assembly Instructions - Andritz HP 45 Série Instructions De Service

Series HP 45
• Pumps with mechanical seals: If leakage occurs at shaft
clean, inspect and if necessary replace the mechanical seal.
A leakage of between 0.2 and 5 ml/h is possible depending
on running smoothness, pressure, rotational speed and shaft
diameter (mechanical seals are wearing parts for which no
guarantee can be given).
• Regularely check local readings, the best each working day,
and immediately react to any large deviations.
• At regular intervals, the best once a week, check all meas-
ured and recorded operating values and note down in a unit
casebook. Determine the maintenance interval on the basis
of the trend (data development).
• Pressure gauge with three way cock: Only open the three-
way cock in order to obtain a gauge reading and close it im-
mediately afterwards.
• If pumping highly corrosive and/or abrasive media, the
components containing pressure should be inspected regu-
larly to avoid unexpected failure. The interval between in-
spections should be short initially and may be extended as
experience is gained.
5.3

Disassembly and assembly instructions

Stripping and assembly should only be carried out by qual-
ified personnel and with reference to the relevant sectional
drawings (see para. 7.4). The stripping sequence will be
clear from the drawing.
• When disassembling the pump casing: secure
the pump casing and pipework against falling
down.
5.3.1 Securing the stage casing
Observe the required torque moment of the tension rod:
Tightening
Type
torque [Nm]
HP 32-135 143,2
HP 40-155 239,1
HP 50-180 315,1
HP 65-205 464,7
Table 3: tightening torques of the tension rod
22
No. of Thread
tension rod [mm]
4 M 20
4 M 24
4 M 24
4 M 27