Scaffolding Hoist - Tractel

c) CHECK BS/BSO SECONDARY BRAKE:(continued)II At ground level first close the BSO secondarybrake by pushing EMERGENCY STOP button(e2). Then push Control lever in DOWN-positionand make the wire rope form a loopbetween TIRAK ® casing and BSO secondarybrake (Fig. 50). Open BSO secondary brakeby pulling down control lever (e1) until it locksin the open position.Push release lever (e3) in its upright positionand with gloved hands sharply pull primarywire rope in arrow direction (Fig. 50) – theBS/BSO secondary brake should close immediately(Fig. 51).Reset BSO secondary brake by pushingdown control lever (e1) until it locks in theopen position.III Lift platform 3 ft. (1 m) above ground or safesurface, and push EMERGENCY STOP button(e2) of the BS/BSO secondary brake(Fig. 51).Lower the platform to check that the BS/BSOsecondary brake holds the load. A loop shouldform as shown in Fig. 50, which means theBS/BSO is supporting the load.Raise platform until the hoist supports the load.Reset (e1) to the open position.IV During operation regularly check through thewindow (e4) that the centrifugal weights arerotating (Fig. 50).WARNING: IF DURING ONE OF THECHECKS THE BS/BSO SECONDARYBRAKE MALFUNCTIONS, IT MUSTBE REPLACED.Figure 50BS/BSO SecondaryBrakeCheck II(e2) EMERGENCYSTOPFigure 51BS/BSO Secondary BrakeCheck III / IV(e2) EMERGENCYSTOP(e3)(e1) Closed(e1) OPENPrimary wirerope loop(Secondarywire rope)(e1) CLOSED(e1) Open(e4) Windowd) Check EMERGENCY STOP button and pushbuttoncontrol according to page 12.e) CONTINUOUSLY CHECK rigging, lines, clearances,and all other elements throughout theentire time on the job.5.2 Normal operation (see page 15)A5.3 Emergency DescentIn case of emergency you can descend with the platformwithout power proceeding as follows:(1) Take the brake release lever (A) from the carryinghandle, and insert it through the motor fan coverhole into the brake release bow. Lift in arrow direction(Fig. 52). The hoist begins to lower at moderatespeed, which is regulated by a mechanical centrifugalbrake.(2) To STOP just release the lever.(3) After use: restore brake release lever (A) into itsstorage position.30CAUTION:DO NOT USE EMERGENCY DESCENTAS REGLAR TECHNIQUE TO LOWER.Figure 52ABBrake ReleaseC