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Fig. 19: Drain the leakage chamber: T 63.2,
T 72
9.6.7
Grease roller bearings
E
Fig. 20: Greasing roller bearings: T 50.1, T 57,
T 63.1
52
Maintenance and repair
Motor T 63.2, T 72
-
Drain off the leakage
‡
Protective equipment has been put on!
‡
Pump is removed and cleaned (if necessary decontaminated).
1. Place the pump upright on a firm surface.WARNING! Risk of hands being crushed.
Make sure that the pump cannot fall over or slip!
2. Place a suitable tank to collect the operating fluid.
3. Unscrew the screw plug slowly (-) but do not unscrew it completely. WARNING! Over-
pressure in the motor! If you hear hissing or whistling sounds, do not turn any fur-
ther! Wait until the pressure has fully dissipated.
4. After the pressure has dissipated, fully unscrew the screw plug (-) and drain the operat-
-
ing fluid.
5. Clean the screw plug (-), replace the seal ring and screw it back in. Max. tightening
torque: 8 Nm (5.9 ft·lb)!
Motors T 50.1, T 57, T 63.1
E
Venting
+
Grease nipple for greasing (grease quantity: 200 g/7 oz)
‡
Protective equipment has been put on!
‡
Pump is removed and cleaned (if necessary decontaminated).
1. Place the pump upright on a firm surface.WARNING! Risk of hands being crushed.
Make sure that the pump cannot fall over or slip!
2. Unscrew the screw plug (E) slowly, but do not unscrew it completely. WARNING! Over-
pressure in the motor! If you hear hissing or whistling sounds, do not turn any fur-
ther! Wait until the pressure has fully dissipated.
3. After the pressure has dissipated, fully unscrew the screw plug (E).
4. Unscrew the screw plug (+). The grease nipple for lubricating the bearings is located
+
behind the screw plug.
5. Use a grease gun to inject the new grease into the grease nipple.
6. Clean screw plug (E) and (+), replace the seal ring and screw it back in. Max. tightening
torque: 8 Nm (5.9 ft·lb)!
WILO SE 2019-01
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