Assembly; Assembling The Electric Motor; Electric Motor Bearings; Electric Motor Stator - Johnson Pump SPX Flow CombiLine Series Instruction Manual

CombiLine-CombiBlocHorti
7.7
!
7.8
7.8.1
!
!
7.8.2
!
CL-CBH/EN (1901) 7.6

Assembly

For correct tightening moments see paragraph 10.3 "Tightening torques".
All parts should be clean and undamaged. Bearings and mechanical seal
should be left in the packing as long as possible.

Assembling the electric motor

The item numbers used refer to figure 17 on page 59.

Electric motor bearings

1 Place the shaft (2420-8) end up on the work table, the key way side up.
2 Place the inner circlip (2420-7) loosely around the shaft.
3 Mount the bearing (2420-9A) onto the shaft.
If possible heat the bearings on a heating plate up to 90 °C.
Make sure the bearings are mounted straight.
Never hit directly on a bearing: use a mounting bush against the inner bearing
race.
4 Turn the shaft and mount the other bearing (2420-9B).
5 Place the oil-baffle (2420-10) in the seat of the front bearing shield (2420-11).
6 Support the motor flange and mount the shaft with the bearing at the key way side in
the front bearing shield.
Make sure the bearing is placed straight inside the seating. Knock on the
shaft end with a plastic hammer. Rotate the shaft slightly after every blow.
7 Mount the inner circlip (2420-7). Make sure it is fitted inside the groove in the bearing
seat.

Electric motor stator

1 Carefully slide the stator (2420-6) over the shaft and the rotor (2420-8) and press
the stator into the collar of the front bearing shield. Make sure that the notches in the
cooling fins correspond with the position of the tie rods.
The terminal box (2420-12) should then be placed at the fan side!
2 Place the wave spring (2420-5) on the rear bearing.
3 Push the rear bearing shield (2420-4) over the bearing (2420-9B). Watch the
position of the holes for the tie rods.
4 Place the oil-baffle (2420-10) in the rear bearing shield.
5 Fix the tie rods (2420-3) and tighten them crosswise and gradually.
6 Mount the cooling fan (2420-2). The smaller types only have a light drive fit. Press the
fan over the shaft end by means of a mounting bush. For the larger types, also tighten
the clamping screws.
7 Mount the fan cover (2420-1).
8 Check whether the shaft end can be rotated.
Disassembly and assembly 39