5
MAINTENANCE, CONTROL AND REPAIR
5.1
MAINTENANCE AND CONTROL
Generally, the overspeed governor and respect ve tens on we ght w th counterwe ght do not need any ma nte-
nance.
The whole plant has been conce ved n such a way that, w th proper use w thout damages, there s no need for
mportant ma ntenance ntervent ons.
Accord ng to the frequency of use, controls of the plant should be carr ed out per od cally.
After substant al changes or after an acc dent, t s necessary to carry out a control of the plant (see
EN 81-2, annex E2).
Th s s necessary espec ally when safety dev ces are changed.
Changes, damages or other rregular t es must be not fied and, f necessary, repa red w th n the l m ts of the al-
lowed feas b l ty.
Per od cal controls ncrease, not only the safety, but also the trouble-free and long-l fe operat on of
the plant!
Part cularly recommended are controls and ma ntenance operat ons before the operat ng tests foreseen by the
law take place.
Please contact your suppl er f there are any doubts regard ng the operat on effic ency of the components of
the plant.
MAINTENANCE AND CONTROL SCHEDULE
• Check every 6 (s x) months the operat on effic ency of the overspeed governor.
• Check the damage or the d stort ons of the overspeed governor and respect ve structural elements.
• Check the wear of the undercut grooves of the overspeed governor and the grooves of the tens on pulley.
Danger of tear to the rope! When the governor rope runs n an rregular way, that s to say when the
outl ne of the rope rema ns stamped n the groove of the overspeed governor.
• Control that the rocker lever s eas ly movable. If necessary, replace t.
• Control the safety sw tch by hand (manual release).
• Keep the plant clean from d rt and part cularly the s gns and the type-plates must always be kept leg ble.
5.2 EXECUTION OF REPAIRS
Generally, also n case of repa rs, the overspeed governor cannot be d sassembled or mod fied n any other
way (seal ng, seal ng-wax).
It s not allowed the spontaneous replacement of parts or element groups due to defects or severe
wear.
The reasons are the follow ng:
• rules and regulat ons concern ng guarantee and safety techn cal d spos t ons;
• only or g nal spare-parts must be mounted.
It s no allowed to operate the elevator plant, even f temporar ly, w thout the overspeed governor.
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