Wilo T 17.3 P Series User Manual

Maintenance and repair en
Installation and operating instructions Wilo Motor T 17.3, 20.2:, EMU FA, Rexa SUPRA, Rexa SOLID 87
5. Unscrew the screw plug (-) and drain the operating fluid. Open the ball valve if a
ball valve has been installed at the outlet opening.
NOTICE!Vacuum the oil or rinse the sealing chamber to fully drain the system.
6. Check the operating fluid:
⇒ If there is a leakage in the mechanical seal, small amounts of water may enter
the sealing chamber. This turns the oil milky/cloudy. If the ratio of oil to water
is less than 2:1, the mechanical seal may be damaged. Change the oil and
check again after 4weeks. If water is again present in the oil during the second
check, contact customer service!
⇒ Notify customer service if the operating fluid contains metal swarf!
7. If a ball valve is installed on the outlet opening, close the ball valve.
8. Clean the screw plug (-), replace the seal ring and screw it back in. Max. tightening
torque: 8Nm (5.9ft·lb)!
9. Fill the new operating fluid through the opening for the screw plug (+).
⇒ Comply with the specifications for the operating fluid type and quantity!
10.Clean the screw plug (+), replace the seal ring and screw it back in. Max. tightening
torque: 8Nm (5.9ft·lb)!
T20.2 motors
+
-
Fig.12: Sealing chamber: Oil change
+ Add the oil to the sealing chamber
- Drain the oil from the sealing chamber
‡ Use protective equipment!
‡ Pump has been dismantled and cleaned (decontaminated, if required).
1. Place the pump upright on a firm surface.WARNING!Risk of hands being crushed.
Make sure that the pump can not fall over or slip!
2. Position a suitable reservoir 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 you can
hear hissing or whistling! Wait until the pressure has completely dissipated.
4. Once the pressure has dissipated, fully unscrew the screw plug (+).
5. Unscrew the screw plug (-) and drain the operating fluid. Open the ball valve if a
ball valve has been installed at the outlet opening.
NOTICE!Vacuum the oil or rinse the sealing chamber to fully drain the system.
6. Check the operating fluid:
⇒ If there is a leakage in the mechanical seal, small amounts of water may enter
the sealing chamber. This turns the oil milky/cloudy. If the ratio of oil to water
is less than 2:1, the mechanical seal may be damaged. Change the oil and
check again after 4weeks. If water is again present in the oil during the second
check, contact customer service!
⇒ Notify customer service if the operating fluid contains metal swarf!
7. If a ball valve is installed on the outlet opening, close the ball valve.
8. Clean the screw plug (-), replace the seal ring and screw it back in. Max. tightening
torque: 8Nm (5.9ft·lb)!
9. Fill the new operating fluid through the opening for the screw plug (+).
⇒ Comply with the specifications for the operating fluid type and quantity!
10.Clean the screw plug (+), replace the seal ring and screw it back in. Max. tightening
torque: 8Nm (5.9ft·lb)!

Wilo T 17.3 P Series Specifications

General

Brand	Wilo
Model	T 17.3 P Series
Category	Engine
Language	English