Faults, causes and remedies
en
Installation and operating instructions Wilo-Rexa CUT GI
25
Work steps
1
2
3
4
5
5
7
5
8
6
Fig. 10:
Readjusting the cutting gap
1...4 Grub screw
5
Cylinder-head screw
6
Cutting plate
7
Rotating blade
8
Pressure connection
‡
Protective equipment has been put on
‡
Pump cleaned and, if required, disinfected
‡
Required tools are ready for use
1. Unscrew the four grub screws from the cutting plate.
2. Push the cutting plate against the internal blade until the
stop is reached.
3. Screw in the four cylinder-head screws by hand until
they fit closely against the cutting plate.
NOTICE! Do not
fully tighten the cylinder-head screws!
4. Screw the four grub screws into the cutting plate again
and tighten crosswise with a torque wrench. Observe the
following pattern when tightening:
• Grub screw 1: 3 Nm (2 ft·lb)
• Grub screw 2: 6 Nm (4 ft·lb)
• Grub screw 1: 6 Nm (4 ft·lb)
• Grub screw 3: 3 Nm (2 ft·lb)
• Grub screw 4: 6 Nm (4 ft·lb)
• Grub screw 3: 6 Nm (4 ft·lb)
10
Faults, causes and remedies
DANGER
Danger due to fluids hazardous to health!
Danger of death in case of pumps with fluids hazard-
ous to health! Wear the following protective equip-
ment while performing the work:
• Closed safety goggles
• Breathing mask
• Protective gloves
⇒ The equipment listed here is the minimum re-
quirement, observe the specifications of the
work regulations! The operator must make sure
that the personnel have received and read the
work regulations!
DANGER
Risk of death due to electrocution!
Improper conduct when carrying out electrical work
can lead to death due to electric shock! Electrical
work must be carried out by a qualified electrician in
accordance with the locally applicable regulations.
DANGER
Risk of fatal injury due to dangerous lone
working practices!
Work in chambers and narrow rooms as well as work
involving risk of falling are dangerous work. Such
work may not be carried out autonomously! A second
person must be present for safety reasons.
WARNING
No persons are allowed to be present inside
the working area of the pump!
Persons may suffer (serious) injuries while the pump is
in operation! No persons may therefore be present in-
side the working area. If persons must enter the
working area of the pump, the pump must be decom-
missioned and secured against being switched on
again without authorisation.
WARNING
Attached macerator: sharp edges on the cut-
ting plate and rotating blade!
The macerator can cause amputation of limbs! Wear
safety gloves to protect against cuts and never reach
into the macerator!
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