Faraone ELEVAH 40 MOVE - Electromagnetic Brake (Elevah 40 Move)

USE AND MAINTENANCE MANUAL - SECTION 8
ELEVAH 40 MOVE / 40 B AERIAL PLATFORM – Rev. 12_2021
Page 8-5
Checking the bearings
Make sure that neither bearing is noisy and has no excessive backlash.
NOTE: whenever maintenance is performed, it is recommended to replace all consumables –
considering these to also include the screws complete with washers and anti-loosening
treatment, the keys and the corrugated washers.
CAUTION
FOLLOWING A STRONG COLLISION, WE RECOMMEND THOROUGHLY CHECKING THE
CASTING OF THE REDUCER, THE WHEEL, THE GEARS AND THE BEARINGS
ELECTROMAGNETIC BRAKE (ELEVAH 40 MOVE)
Checking the electromagnet
The maximum braking torque of the electromagnetic brakes available is indicated below according
to diameter:
Æ
80 Econ C = 0.4 Kgm
Æ
80 C = 0.6 Kgm
Checking the electromagnet
If the brake does not release and lock the lining properly when it is energised and de-energised in
alternation, measure the resistance of the winding, which must be as follows:
Æ
80 Econ
Æ
80
- 24 Volt brake 70
W
25
W
Also check the insulation towards the motor, using a 500-volt Megohmmeter to measure the
insulation resistance, which must be above 0.1 MΩ.
The electromagnet must be replaced if it does not fulfil these conditions.
Replacing the electromagnet and checking the lining with a splined hub
Remove any brake covers and completely loosen the three fixing screws and remove the
electromagnet and check the lining disk.
Its thickness must be about 7 mm for the ø80 mm type.
If the thickness is less than 5 mm, it is advisable to replace the complete lining of the splined hub
after having removed the Seeger ring or self-locking nut.
Refit the new lining.
Calibrating the clearance
Calibration should be carried out as described below when replacing the lining or the entire
electromagnetic brake:
• loosen the three hexagonal adjustment bushes;
• adjust the three fixing screws so as to obtain a clearance between 0.2 and 0.4 mm;
• lock the three hexagonal adjustment bushes and check, with a thickness gauge, that the
clearance is within the permitted limits.