User`s manual

This series of limit switches is made up of a case

containing a worm screw unit and micro-switches. ]t is

directly driven by the rope drum axle to which it is

connected by means of a plastic coupling or an hexagonal

shaft.

Removing the cover the cams of the micro-switches can

be seen.

The cam can be released by loosening the central screw;

with lateral screws 1 - 2 - 3 place the cams in the exact

position for opening the contact relative to the two working

directions.

Re-tighten the central screw and carry out a few lifting

manoeuvres as a final test. If there is a cam for the

emergency contact, which acts on the line contactor

switch, there should be a slight delay compared to the

"hoist" contact.

The contacts must be set in the following order;

emergency, "hoist" and then "lower".

Make sure the central screws are tight and then carefully

shut the case.

SETTING OF THE "TER" TYPE WORM SCREW HOIST LIMIT SWITCHES

(To be carried out by a qualified operator)

SETTING OF THE “BOX 0A” TYPE WORM SCREW HOIST LIMIT SWITCH

(to be carried out by a qualified operator)

For setting operations, please refer to the instructions for TER type limit switch

Central screw

Screws open

Emergency micro switch

S “Hoisting” micro switch

D “Lowering” micro switch

S hoisting contact

D lowering contact

CAMS