Johnson Pump SPX Flow CombiBlocHorti Series, Instruction Manual

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38 Disassembly and assembly
CL-CBH/EN (1901) 7.6
7.6 Disassembling the electric motor
The item numbers used refer to figure 17 on page 59.
7.6.1 Electric motor stator
1 Put the electric motor vertically with the shaft end pointing downward. Let the motor
flange rest on e.g. 2 wooden blocks with an opening in the working surface for the
shaft end.
2 Remove the fan cover (2420-1) by loosening the 4 screws.
3 Remove the cooling fan (2420-2). For electric motors from 2,2 kW you must first
loosen 2 clamping screws. After that, remove the fan from the shaft end by means of
2 broad screw drivers, see figure 8.
4 Loosen the 4 tie rods (2420-3).
5 Carefully lift up and remove the rear bearing shield (2420-4) by means of two broad
screwdrivers.
6 Remove the wave spring (2420-5).
7 Carefully lift up the stator (2420-6) by means of 2 broad screw drivers and remove it
in vertical direction.
7.6.2 Electric motor bearings
1 Remove the inner circlip (2420-7).
2 Knock on the shaft end, using a plastic hammer, to loosen the shaft (2420-8) with
bearing from the bearing seat of the front bearing shield (2420-11).
3 Remove both bearings (2420-9) using a proper bearing puller. First remove possible
paint from the shaft.
4 Remove the oil-baffle (2420-10) from the rear and front bearing shield (2420-4) and
(2420-11) respectively.
Figure 8: Removing the cooling fan.
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