Nidec LEROY-SOMER FFB Series, Руководство по обслуживанию

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13
en
OPTIONS
FFB Brake Motors Maintenance Guide
5287 en - 2019.07 / d
6.3 - DMD lever
- Exploded view
1502
1505
1600 1603
1605
1702 1602
1703 1704
1700 0008
0007
0013 0027
1406 1407
0009
1701
1601
1504
1503
1501
1500 1401
- Parts list
Item Description Qty Item Description Qty
7 Fan 1 1505 Return spring (item 1501) 1
8 Fan thrust washer (item 7) 0 or 1 1600 Stud (item 1601) 1
9 Locking circlips (item 7) 1 1601 Latch mecanism 1
13 Fan cover 1 1602 Rotation axis (item 1601) 1
27 Cover fixing screw (item 13) 3 or 4 1603 Locknut 1
1406 Cover closing hatch 1 1605 Control rod (item 1601) 1
1407 Fixing screw (item 1406) 4 1700 Electromagnet plate assembly 1
1500 Stud (rep.1501) 2 1701 Plate fixing screw (item 1700) 3
1501 DLRA calliper 1 1702 Contact pallet 1
1502 DLRA control rod 1 1703 Washer under screw (item 1704) 1
1503 Spiral spring under nut 2 1704 Pallet fixing screw (item 1702) 1
1504 Locknut 2
•
Operation
For brakes fitted with a DMD, supply the brake coil separately
from the motor. Once the brake is released, supply the
electromagnet on the latch control plate. Once the latch
contact is triggered, power off the brake coil then the control
plate. The brake is maintained in the released position. When
brake power is restored, locking drops automatically and the
brake is operational.
• Disassembly :
- Disconnect the electromagnet plate
1700
.
- Unscrew the control rods of the levers 1502 and 1605 (if
mounted on their base).
- Unscrew the screws 27 from the cover, remove the metal
cover 13 .
- Remove the fan
7
by removing the axial holding circlips
9
.
- Extract the fan 7 using two screwdrivers as levers.
- Unscrew the screws 1701 from the electromagnet plate
1700 , then remove the plate.
To remove the latch (DLM) refer to § 6.2 and the (DLRA) refer
to § 6.1.
• Reassembly :
Reverse the removal procedure.
- When refitting the mechanical link between the latch and
the plate, adjust the contact pallet
1702
using the screw and
washer 1703 , 1704 .
Adjusting must be done with the rod in; check that the pallet
1702 actually activates the microcontact of the electromagnet
plate 1700 . Lock the fixing screws 1703 .
- Operate the DLRA control rod
1502
, then the DLM
1605
one. Release the DLRA, then the DLM, rotor must be free.
It is prohibited to drive the extension shaft
1401 and the fan 7 in manual rotation with
the parking brake applied, or the brake
released under load.
- Actuate the DLRA 1502 , under the action of the electro-
magnet plate 1700 , the DLM lever 1605 should return to its
'unlocked' position.
- Check the air gap between the armature
1102
and the yoke
1105 next to the spacers 1104 . The values shall comply with
the following table:
Brake size With DMD lever
FFB1, FFB2, FFB3 0,6-0,7 mm
FFB4, FFB5 0,6-0,7 mm
- Refit the fan...
After any loosening operation, check that the
brake is in the applied position once the
maintenance operations are performed.
Working position of the DLM lever (NDE motor rear view) :
1605 1605
1502
Item 1605
unlocked
Locking
direction
Item 1605
locked