Street Crane ZX6, Инструкции по установке, эксплуатации и обслуживанию

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
Slide the limit switch up to the rope guide retainer until the switch is activated. Tighten the grub screws
holding the arm to the limit bar.

Test that the limit operates satisfactorily firstly at slow speed and then at fast speed, stopping at the
correct distance from the underside of the beam. Re ‐ adjust if necessary. When the adjustments are
complete, replace the hoist cover.
3.7 SETTING THE UPPER AND LOWER LIMIT SWITCHES – OPEN BARREL
Open barrel hoists will not be fitted with standard upper and lower limit switches, they will however be fitted
with a Rotary limit switch that will be mounted on the end of the drum in the same position as the Ultimate
limit option. (Open barrel TVL hoists do not have a Rotary Ultimate Limit option).
3.7.1 Setting the Hoist Upper limit

Raise the hook to the desired operating position at slow speed with no load attached allowing an
additional 50mm for a fast speed approach.
1
The upper hook level for low headroom hoists vary with the runway flange width. The hoist
will be seriously damaged if the hook is set higher than the values indicated in section 3.10.

Remove the lid from the Rotary limit and loosen the central clamp screw (see Figure ).

Turn cam no.2 adjustment screw until cam no. 2 is positioned just before it operates the micro switch.

Re ‐ tighten the central clamp screw.

Test the operating position in slow speed at first repeating the test in fast speed adjusting the trip
position where necessary. Replace limit switch lid.
Figure 17 – Setting the Upper/Lower Limit Switch – Rotary Type