en
Maintenance and repair
36
WILO SE 2019-01
9.5.7.1
Oil change: sealing, gear and pre-
chamber
1
2
3
4
5
6
Fig. 12:
Oil change
1
Pre-chamber filler hole
2
Gear chamber filler hole
3
Sealing chamber filler hole
4
Pre-chamber drain hole
5
Gear chamber drain hole
6
Sealing chamber drain hole
‡
Mixer is
not
installed.
‡
Mixer is
not
connected to the mains.
‡
Wear protective equipment!
1. Position the mixer horizontally on a firm surface.
WARNING! Risk of hands being crushed. Make sure the mixer cannot fall over or
slip out of position!
CAUTION! Do not place the mixer on the propeller! Always place the mixer on a
platform.
2. Position a suitable tank to collect the operating fluid.
3. Unscrew the screw plug of the filler hole:
1 = pre-chamber
2 = gear chamber
3 = sealing chamber
4. Unscrew the drain hole screw plug and drain operating fluid:
4 = pre-chamber
5 = gear chamber
6 = sealing chamber
5. Check the operating fluid: Notify customer service if the operating fluid contains
metal swarf!
6. Dispose of operating fluid in accordance with local regulations!
7. Clean the drain hole screw plug, replace the seal ring and screw it back in.
Max.
tightening torque: 8 Nm (5.9 ft·lb)!
8. Pour the operating fluid through the filler hole.
⇒ Comply with the specifications for the operating fluid type and quantity!
9. Clean the filler hole screw plug, replace the seal ring and screw it back in.
Max.
tightening torque: 8 Nm (5.9 ft·lb)!
10.Restore corrosion protection: Seal screw plug, e.g. with Sikaflex.
9.5.8
General overhaul
The following components are checked for wear and damage as part of general main-
tenance:
ƒ
Motor bearings
ƒ
Gear bearing and planetary gear speed
