Instruction manual

6) Install the brake onto the motor. Apply
silicone to the brake end shield holes prior
to installation to prevent water from entering
the motor. Replace all three screws.
7) Measure distance (b) between the brake
retraction plate (C) and washer (D) in Figure
530. This distance must be 0.039" (1mm). If
necessary, adjust symmetrically on both
sides by means of the two screws (E).
5-9 Operational Check
Testing must be carried out once the brake has
been completely reassembled. With the fan cover
removed, proceed with the operational check:
1) With the correct power supplied to the hoist,
push the up or down button.
2) Visually inspect that the anchor disc (“C” in
Figure 530) lifts evenly upward away from the
brake disc. A pronounced "click" or "snap"
should be heard when it retracts
magnetically.
3) CAREFULLY feel for heat (Figure 531)
around the entire electromagnetic brake
being cautious around the rotating fan.
4) If there is any heat being generated, re-
inspect the brake air gap because the disc is
most likely dragging.
5) If no heat is generated, reinstall the fan
cover. When installing the fan cover, pull
back as shown in Figure 532 to gain more
clearance for the emergency descent lever.
5-10 Coil Resistance Inspection
Measure the resistance of the brake coil as
shown in the Electrical Control Box chapter.
XE301P brake resistances listed in table 501.
Brake coil resistance is also found on the wiring
diagram.
5-11 Parts List Primary Brake
38
Figure 530
Figure 531
Figure 532
WARNING
Upon completion of any brake maintenance, it is
MANDATORY that a load test of the hoist be
completed.
Brake Type
Code
Complete
Disc
Code
Release
Code
Hub
Code
110 V Precima Model
FDB10 Resistance
332 Ohms
49746 47416 61716 47416
220 V Precima Model
FDB10 Resistance
1430 Ohms
47406 47416 61716 47416
Table 501