English
28
WILO SE 07/2013
9.5
Dismantling
9.5.1
General
DANGER! Risk of fatal injury!
Risk of fatal injury and risk of injuries to personnel and property
damage due to improper handling.
• The safety instructions and regulations according to chapter 2
“Safety” on page 3 and section 9.1 “Safety” on page 26 are to be
taken into consideration for all maintenance and repair work.
Maintenance and repair work require the pump be partially or com-
pletely dismantled.
The pump housing can be installed in the piping.
• Close all valves in the suction line and pressure pipe.
• Drain the pump by opening the drainage screw and the venting screw.
• Switch off the energy supply to the pump and secure against switch-
ing on again.
• Remove coupling protection.
• If present: Remove the intermediate sleeve of the coupling.
Motor:
• Remove the fastening screws of the motor from the baseplate.
NOTE:
For installation work, please also observe the sectional drawings in
section 11.1 “Spare parts lists, Wilo-CronoNorm-NL” on page 42 as
well as in section 11.2 “Spare parts lists, Wilo-CronoNorm-NLG” on
page 46.
9.5.2
Dismantling the
Wilo-CronoNorm-NL
Slide-in unit
Slide-in unit:
See Fig. 17
• Mark positions of the parts which belong together with a coloured
pen or scriber.
• Remove the hexagon head bolts (14).
• Pull the pull-out slide-in unit straight out of the spiral housing (1.1) to
avoid damage to interior parts.
• Put the slide-in unit down at a safe workplace.This assembly must be
removed vertically to avoid damage to the impellers, stationary wear
rings and other parts.
• Remove the housing seal (1.2).
Fig. 17: Slide-in unit
14
1.2
1.1
1.3
