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Introduction
Thank you for choosing our MS4SF ratiomotor. All items in the wide Benincà production range are the result
of twenty-years' experience in the automatism sector and of continuous research for new materials and ad-
vanced technologies. We are, therefore, in the position to offer higly reliable products that due to their power,
effectiveness and useful life, fully satisfy the final user's requirements.
All our products are manufactured to the existing standard and are covered by warranty.
Possible injury to people or accidents caused by defects in construction are covered by a civil liability policy
drawn up with one of the major insurance companies.
1. General information
For an efficient operation of the sliding automatic mechanism, the gate must have the following features:
- The guide rail and its wheels must be suitable in size and mantained to prevent gate from excessive sliding
friction.
- When running, gate must not rock excessively.
- Opening and closing stroke must be regulated by a mechanical limit stop (to safety standard in force).
2. General features
Automation for private use sliding gates (max. gate weight 400Kg).
The small and elegant design enbloc MS4SF consists of an aluminium unit containing the motor and irreversible
reduction unit, realized with high-grade materials. The MS4SF has a spring-operated travel-end.
The emergency release is performed using a convenient wire control with a personalised key.
3. Laying of the foundation plate
Fit the foundation plate onto the floor according to dimensions given in fig.1, by using 4 steel T screw an-
chors (in any case the plate should be perfectly anchored to the floor). Provide for a tube to house the supply
cables.
4. Rack fixing
4.1 Nylon rack
Place the rack at a height of 111mm from the centre line of the fitting slot to which the foundation plate is to
be fitted. Drill and thread (M6) the gate in that point. Fix the rack according to points 4.3 and 4.4.
4.2 Iron rack, 12x30mm.
Position the spacers D by welding or fit them to the gate with screws at 148mm height from the centre line
of the slot used for fitting to the base on which the foundation plate is to be fixed. Fix the rack according to
points 4.3 and 4.4.
4.3 Keep the pitch of teeth between the two parts of the rack; the joining with another piece of rack would
make it easier to achieve (see Fig.3)
4.4 Secure the rack with the screws V making sure, once the actuator has been installed, that between rack
and the drive gear there is always approx. 1mm clearance (see Fig.4); to get this clearance use the slots on
the rack.
5. Actuator positioning and fixing (see Fig.5)
Remove the case by untightening the screws V. The group should be positioned with the gear centred with
respect to the rack, level it by using the screws G and, if necessary, adjust the clearance between rack and
gears (according to Fig.4). Now tighten the nuts D.
6. Limit stop flask positioning (see Fig.6)
Open manually the gate and leave approximately of 1÷3cm, depending on gate weight, between gate and
positive mechanical stop A; tighten the limit stop flask S with the grains G to press the limit stop micro. Repeat
the sequence with closing gate. To obtain braking, gradually decrease the operating time until the automatic
system starts to move at reduced speed before the stop limit switch is triggered.
N.B.: In partial operations there will be no braking.
7. Installation of the wire release
The MS4SF is equipped for the installation of an emergency wire release composed of (fig.7):
A - Key selector, for external installation, with wire release mod. CHS.
B - Wire stretching device to be installed internally.
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