Siemens 1FP1/3 - Page 111

Plastic fan
• Correctly expose the breakout openings provided in the fan plate.
• Heat up the fans to a temperature of approximately 50° C around the area of the hub.
• Use a suitable tool to pull o󹪜 the fan (puller).
• Locate the arms of the pulling tool in the breakout openings and slightly tension the pressure
screw of the tool.
• For fans with snapping mechanisms, simultaneously release the two snap-in lugs of the fan
from the annular shaft groove.
Keep the snap-in lugs in this position.
• Uniformly withdraw the fan from the shaft by turning the pressure screw of the pulling tool.
• Do not apply any hammer blows to avoid damaging the rotor shaft, the fan and the bearings.
• Order the appropriate new parts if damaged.
Metal fan
• Shaft height 63: Release the two M4 clamping screw so that the fan can rotate freely on the
shaft.
• Shaft heights 71...90: Release the M5 set screw so that the fan can rotate freely on the shaft.
• Shaft height 100...355: Remove the locking ring.
• Use a suitable tool to pull o󹪜 the fan (puller).
• Locate the arms of the pulling tool in the openings in the fan in the vicinity of the hub.
• Alternatively, place the pulling tool at the outer edge of the fan plate.
• Uniformly withdraw the fan from the shaft by turning the pressure screw of the pulling tool.
• Do not apply any hammer blows to avoid damaging the rotor shaft, the fan and the bearings.
• Order the appropriate new parts if damaged.
Plastic fan cover
Shaft height 80 ... 160
1. Carefully release the snap openings of the cover one after the other from the lugs.
2. Do not insert the lever directly under the lug, as otherwise it could break.
3. Take care to not damage the catch mechanism. Order the appropriate new parts if damaged.
Maintenance
9.4Corrective maintenance
1LE1, 1FP1/3, 1PC1/3 shaft height 63 ... 315
Operating Instructions, 11/2023, A5E38483075A 109