Nidec LEROY-SOMER FLSES 100 L, Руководство по пусконаладке и техническому обслуживанию

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Maintenance and service guide - LSPX-FLSPX ZONE 21 - Ex tb – LSES-FLSES ZONE 22 - Ex tc
5725 en - 2020.02 / c
INSTALLATION AND MAINTENANCE - FLSPX
12.3 - FLSPX 200 and 225 MT/MS
motors
12.3.1 - Removing the rear bearing housing
- Remove the cover (13) once the fixing screws (27) have been
removed;
- extract the fan (7);
- withdraw the fixing screws of the rear inner cover (53);
- withdraw the fixing screws (273) from the rear bearing
housing (6);
- using two levers or a soft hammer, extract the rear bearing
housing (6), keeping the latter straight.
Release the bearing housing by sliding it on the shaft. The
seals (54a and 54b) follow and become unusable.
- Put the dismantled components to one side and recover the
pre-load washer (59) which is to be relocated in its housing;
- remove all traces of sealant located on the housing on the
frame.
12.3.2 - Removing the front bearing housing
Remove the front bearing housing without releasing the rotor
(3).
To do this:
- withdraw the fixing screws (40) of the front inner cover (33);
- withdraw the fixing screws (270) from the front bearing
housing (5);
- release the key (21);
- using two levers or a soft hammer, extract the front bearing
housing (5), keeping the latter straight;
- release the bearing housing (5) by sliding it on the shaft. The
seals (39a and 39b) follow and become unusable;
- remove all traces of sealant located on the housing on the
frame.
12.3.3 - Changing the bearings
- Each bearing housing must be fitted with a continuous bead
silicone or polyurethane sealant at the housing on the frame;
- using a suitable lifting device, extract the rotor without making
contact with the winding;
- extract the bearings (30) and (50) using a suitable tool whilst
protecting the end of the shaft extension. Avoid making contact
with the shaft support surface;
- the mobile parts of the grease valve (35) for the front and (56)
for the rear follow. ;
- put to one side the components (55) - (56) for the rear and (34)
- (35) for the front;
- change the bearings in accordance with the instructions
described in General section of § 10.2. (hot fitting only).
NOTE: Before carrying out any operations read § “CHECKS
BEFORE REFITTING”.
12.3.4 - Re-fitting
- Fit the front bearing (30) on the rotor shaft, do not forget the
inner cover (33);
- if and only if the internal Ø of the stator allows them to pass
through, fit the rear bearing (50) not forgetting the inner cover (53);
- fit in place the fixed part of the grease valves (item (55) for the
rear and (34) for the front);
- hot-fit the mobile part of the grease valves (item (56) for the
rear and (35) for the front).
Check that it rests on the inner ring of the bearing;
- introduce the rotor into the stator taking care not to make
contact with the winding. Fit the rear bearing (50) in place, do
not forget the inner cover (53) if this has not already been done;
- grease and fit the rear seals in place; seal (54b) in the rear
bearing housing (6) and seal (39b) in the front bearing housing
(5). The seal lips must be aligned towards the exterior of the
bearing housings.
- Present the bearing housings, grease nipples upwards. Start
with the front bearing housing (5). Fit a pin in one of the inner
cover (33) threaded holes to align the grease feed pipes.
Slide it until they are fully fitted.
- Finish with the rear bearing housing (6). Fit a pin in one of the
inner cover (53) threaded holes
to align the grease feed
pipes,
- lift the rotor slightly and fit the bearing housings on the frame.
From this point on we recommend that at every step you
check that the motor rotates freely by hand before moving
on to the next instruction.
- Fit the bearing housing (270) and (273) fitting screws in
position and tighten them diagonally to the recommended
torque (see § 10.2.4);
- fit the inner cover fixing screws (33) and (53). Replace the AZ
washers to ensure a perfect seal;
- after greasing it refit a new seal (54a) in position using a drift;
replace the fan (7);
- after greasing it refit a new seal (39a) in position using a drift;
- replace the cover (13) and refit the fixing screws (27);
- grease the front and rear bearings whilst rotating the shaft by
hand.
Quantity of grease for the ball bearings:
- FR and REAR = 100 cm
3
39a 35 34 30 54a
39b 54b 39b 54b
58 50
5 33 53 6
39a 34 30 54a 58 50
5 33 53 6
FLSPX 200 and 225 MT/ST
standard bearings
FLSPX 200 and 225 MT/ST
drive-end roller bearings
REAR FRONT REAR FRONT