Wilo 6081536, Инструкция по установке и эксплуатации

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en Maintenance and repair
24 WILO SE 2019-02
being crushed. Ensure that the pump cannot fall over
or slip away!
2. Unscrew the screw plug slowly, but do not unscrew it
completely. WARNING! Overpressure in the motor!
Stop turning the screw plug further if hissing or
whistling is audible! Wait until the pressure has com-
pletely dissipated.
3. After the pressure has dissipated, fully unscrew the
screw plug.
4. Place a suitable tank to collect the operating fluid.
5. Drain the operating fluid: Rotate the pump until the
opening points downwards.
6. Check the operating fluid: Notify customer service if an
operating fluid contains metal chips!
7. Pour in operating fluid: Rotate the pump until the open-
ing points upwards. Fill-in the operating fluid into the
opening.
⇒ Comply with the specifications for operating fluid
locations and quantity!
8. Clean the screw plug, replace the seal ring and screw it
back in. Max. tightening torque: 8 Nm (5.9 ft lb)!
9.5.7 General overhaul
During the general overhaul, the motor bearings, shaft sealings,
O-rings and power supply cables are checked for wear and dam-
age. Damaged components are replaced with original parts. This
will ensure correct operation.
The general overhaul is performed by the manufacturer or an au-
thorised service centre.
9.6 Repairs
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!
WARNING
Hand, foot or eye injuries due to the absence
of protective equipment!
Danger of (serious) injuries during work. Wear the
following protective equipment:
• Safety gloves for protection against cuts
• Safety shoes
• Closed safety goggles
The following preconditions must be met prior to starting repair
work:
ƒ
Pump cooled down to the ambient temperature.
ƒ
Pump is switched voltage-free and secured against being ac-
tivated inadvertently.
ƒ
Pump cleaned thoroughly and disinfected (if required).
For repair work the following generally applies:
ƒ
Wipe up spillage quantities of fluid and operating fluid imme-
diately!
ƒ
Always replace O-rings, gaskets and screw locking devices!
ƒ
Observe the tightening torques in the appendix!
ƒ
Never use force when carrying out this work!
9.6.1 Instructions on using screw locking devices
A screw locking device can be used on the screws. Screw locking
is done at the factory using two different methods:
ƒ
Thread-locking fluid
ƒ
Mechanical screw locking device
Always re-apply the screw locking device!
Thread-locking fluid
Medium-strength thread-locking fluid (e.g. Loctite 243) is used
for the liquid screw locking compound. This threadlocker can be
loosened with increased force. If the thread-locking fluid cannot
be loosened, then the compound must be heated to approx.
300 °C (572 °F). Clean the components thoroughly after dismant-
ling.
Mechanical screw locking device
The mechanical screw locking device consists of two Nord-Lock
wedge lock washers. The screw connection is secured by the
clamping force. The Nord-Lock screw locking device must only
be used on bolts with strength class 10.9 which have been
coated with Geomet. The use of stainless screws is prohibited!
9.6.2 Which repair work may be carried out
ƒ
Readjusting the cutting gap.
9.6.3 Readjusting the macerator
The gap between cutting plate and blade is approx. 0.1 mm
(0.004 in). If the gap becomes too great, then cutting perform-
ance is impaired and clogging will increase. In this case, readjust
the gap.
Necessary tools
ƒ
Torque wrench with size 4 Allen wrench insert
ƒ
Size 5 Allen wrench
ƒ
Size 4 Allen wrench