16
A
Figure 26 Brake Release
WARNING:
DURING USE OF THE HOIST NEVER
DETACH BSO SECONDARY BRAKE!
Figure 27
BSO Secondary Brake
(d1) Closed
(d1) OPEN
EMERGENCY
STOP (d2)
5.3 Emergency
Descent
In case of emergency you can descend with the platform
without power proceeding as follows:
(1) Take the brake release lever (A) from the carrying
handle, and insert it through the motor fan cover
hole into the brake release bow. Lift in arrow direc-
tion (Fig. 26). The hoist begins to lower at moderate
speed, which is regulated by a mechanical centrifugal
brake.
(2) To
STOP
just release the lever.
(3)
After use
: restore brake release lever (A) into its
storage position.
CAUTION:
DO NOT USE EMERGENCY DESCENT
AS REGULAR TECHNIQUE TO LOW-
ER.
5.4
BSO Secondary Brake Action
(1)
EMERGENCY STOP
Push EMERGENCY STOP button of the BSO Sec-
ondary brake, if – for whatever reason – you want
to absolutely stop downward travel of the platform.
(2) To reset BSO secondary brake:
Raise the platform until the hoist supports the
load.
Push the control lever in the OPEN position (d1) (Fig.
27).
DO NOT
force it open.
(3) If the BSO secondary brake has
automatically
closed
:
WARNING: STOP DOWNWARD TRAVEL!
YOU MAY HAVE RUN OFF THE WIRE
ROPE CAUSING OVERSPEED. WITH
EXTREME CAUTION TRY TO GO UP.
IF YOU CANNOT GO UP, A RESCUE IS RE-
QUIRED.
When the hoist supports the load, reset the BSO
secondary brake as described above.
CAUTION:
If the BSO secondary brake repeatedly
stops downward travel, contact the
supplier for advice. Check wire rope
diameter (see page 11).
NOTE:
If during emergency descent the BSO
Secondary brake closes, you have to
wait for elctric power to go up.
The hoist must move up to get the BSO free.
Reset BSO by pushing down control lever (d1)
in open position (see Fig. 27).
DO NOT
force it open
!
If electric power is not available you have to
require help or a rescue!
WARNING:
If the BSO secondary brake stops down-
ward travel during emergency descent,
DO NOT DETACH BSO secondary
brake FROM HOIST!
