Fig. 11: Motor compartment: Oil change
E
+
Fig. 12: Motor compartment: Oil change
Installation and operating instructions Wilo Motor FK 17.1, FK 202, FK 34, FK 42 + EMU FA, Rexa SUPRA, Rexa SOLID
Maintenance and repair
Motor FK 17.1
+/-
Fill/drain the oil in the motor compartment
‡
Protective equipment has been put on!
‡
Pump has been dismantled and cleaned (decontaminated if required).
1. Place the pump upright on a firm surface.WARNING! Risk of hands being crushed.
Ensure that the pump cannot fall over or slip away!
2. Place a suitable tank to collect the operating fluid.
3. Unscrew the screw plug slowly, but do not unscrew it completely. WARN-
+/-
ING! Overpressure in the motor! Stop turning the screw plug further if hissing
or whistling is audible! Wait until the pressure has completely dissipated.
4. After the pressure has dissipated, fully unscrew the screw plug and drain the oper-
ating fluid.
5. Check the operating fluid: Notify customer service if an operating fluid contains
metal chips!
6. Pour the new operating fluid in through the opening.
⇒ Comply with the specifications for operating fluid locations and quantity!
7. Clean the screw plug, replace the seal ring and screw it back in. Max. tightening
torque: 8 Nm!
Motors FK 202, FK 34 and FK 42
E
Venting
+
Fill the oil in the motor compartment
-
Drain the oil in the motor compartment
‡
Protective equipment has been put on.
‡
Pump has been dismantled and cleaned (decontaminated if required).
1. Place the pump on a firm surface in a vertical position.WARNING! Risk of hands
being crushed. Ensure that the pump cannot fall over or slip away!
-
2. Position a suitable tank to collect the operating fluid.
3. Unscrew the screw plug (E) slowly, but do not unscrew it completely. WARN-
ING! Overpressure in the motor! Stop turning the screw plug further if hissing
or whistling is audible! Wait until the pressure has completely dissipated.
4. After the pressure has dissipated, fully unscrew the screw plug (E).
5. Unscrew the screw plug (+).
6. Unscrew screw plug (-) and drain the operating fluid. If a shut-off ball cock is in-
stalled on the outlet opening, open the shut-off ball cock.
7. Check the operating fluid: Notify the customer service if the operating fluid con-
tains swarf!
8. If a shut-off ball cock is installed on the outlet opening, close the shut-off ball
cock.
9. Clean the screw plug (-), replace the seal ring and screw it back in. Max. tightening
torque: 8 Nm (5.9 ft·lb)!
10.Pour the new operating fluid in through the hole of the screw plug (+).
⇒ Comply with the specifications for operating fluid type and quantity.
11.Clean the screw plug (+) and (E), replace the seal ring and screw it back in. Max.
tightening torque: 8 Nm (5.9 ft·lb)!
en
185