Page 1
LIBRA HYDRAULIC OPERATORS FOR SWING GATES MINI TANK HALF TANK FULL TANK SEA USA Inc. 10850 N.W. 21st - unit 160 - Doral - Miami FLORIDA (FL) 33172 Phone: ++ 1 - 305.594.1151 www.sea-usa.com 67410246 REV. 15 - 05/2024...
UL 325 ED. 7 FOR GATE OPERATORS GENERAL SAFETY PRECAUTIONS The following precautions are an integral and essential part of the product and must be supplied to the user; Read them carefully as they contain important indications for the safe installation, use and maintenance. 1.
A gate operator shall be provided with the specific instructions describing all user adjustments required for proper operation of the gate. Detailed instructions shall be provided regarding user adjustment of any clutch or pressure relief adjustments provided. The instructions shall also indicate the need for periodic checking and adjustment by a qualified technician of the control mechanism for force, speed, and sensitivity.
e. A wireless contact sensor such as one that transmits radio frequency (RF) signals to the gate operator for entrapment protection functions shall be located where the transmission of the signals is not obstructed or impeded by building structures, natural landscaping or similar obstruction. A wireless contact sensor shall function under the intended end-use conditions.
As for misunderstandings that may arise refer to your area distributor or call our help desk. These instructions are part of the device and must be kept in a well-known place. The installer shall follow the provided instructions thoroughly. SEA products must only be used to automate doors, gates and wings.
Install the operator in the correct position and on a sturdy part of the gate to avoid damages SEA operators are intended for vehicles use only. Provide separate pedestrians walkway Install the warning signs on each side of the gate area and make sure they are easily visible...
FEATURES MINI TANK - HALF TANK - FULL TANK are high quality hydraulic operators for residential and condominium use. Operators are available in the following versions according to the hydraulic locking type: HYDRAULIC LOCKING IS GUARANTEED ON LEAF LENGTH UP TO FEET FOR LONGER LEAVES USE THE ELECTRIC LOCK...
COMPONENTS MINI TANK - HALF TANK Shaft Cover Fig. 4 Release with aluminium key Front End cover bracket (Optional) By-pass valves adjustment key (only for the installer) Short brass pin Release for rear bracket Rear fixing bracket Shaft Swing fork Long brass pin for oscillating fork * The spheric joint is standard...
FULL TANK LARGE SP - VERSION WITH SEPARATE HYDRAULIC UNIT ASSEMBLY OF THE CONNECTOR ON THE FLEXIBLE PIPE 8.2 7" Cut the flexible pipe to the desired size Screw the item on the flexible pipe Insert the item and screw it on the items "...
Page 10
TECHNICAL DATA MINI TANK HALF TANK HALF TANK LARGE FULL TANK FULL TANK LARGE 120V (± 5%) - single phase 50/60 Hz Power supply Absorbed current Stroke 15,35 in 15,35 in 10,63 in 10,63 in Cycles per hour * (at 68°F temperature) Max working pressure 40 bar 30 bar...
INWARD INSTALLATION OUTSIDE OUTSIDE INSIDE Fig. 9 INSIDE MINI TANK 10,63 in. - 9,84 in. TOTAL STROKE RECOMMENDED STROKE f ** STROKE OPENING STROKE INSTALL 90° (in.) (in.) (in.) (in.) (in.) (in.) (in.) (in.) ANGLE INSIDE 1,97 3,94 4,53 1,97 34,65 110°...
Page 12
OUTWARD INSTALLATION Fig. 12 Fig. 11 OUTSIDE OUTSIDE INSIDE INSTALL INSIDE THE PROPERTY! For the «c» dimension the reference is the minimum value that could be considered The «f» dimension has been calculated for a 3,78 inches INSIDE thick gate MINI TANK - HALF TANK - FULL TANK HALF TANK LARGE - FULL TANK LARGE 10,63 in.
Page 13
INSTALLATION - PRELIMINARY NOTES Open the package carefully, making sure to not loose the parts listed in Fig. 4 or Fig. 5 For a proper operation, it is important to place as the operator as the front and rear brackets in a perfectly horizontal position with the help of a level, as shown in Fig.
Page 14
FRONT BRACKET INSTALLATION Once the operator has been fixed on the rear bracket, close the leaf and proceed as follows: Unlock the operator by following the unlocking procedure shown in chapter 27 Pull out completely the chrome shaft, then bring it back about 0,40 inches Place the front bracket on the gate and place the shaft in the housing - Fig.
INSTALLATION OF THE BRACKETS BEFORE THE OPERATOR (Not recommended!) ½ Fig. 30 RECOMMEND TO FOLLOW THE ASSEMBLY PROCEDURE SHOWN IN CHAPTERS FROM FOR A CORRECT INSTALLATION 1/2 inch OU NEED TO INSTALL THE BRACKETS BEFORE THE OPERATOR PLACE THE FRONT BRACKET LOWER THAN THE REAR BRACKET INSTALLATION OF THE EXTRUDED COVER FOR CHROME PLATED SHAFT MINI TANK - HALF TANK - HALF TANK LARGE...
Page 16
TORQUE ADJUSTMENT THROUGH THE BY-PASS VALVES The by-pass valves are inside the manual release housing; During the first installation, the manual release is not yet assembled therefore, after having carried out the adjustments of the by-pass valves - Fig. 35 - Fig. 36 or Fig. 37 - you can proceed with the assembly of the release group (see chapters Fig.
Page 17
PLASTIC RELEASE INSTALLATION for MINI TANK - HALF TANK - HALF TANK LARGE Assemble the plastic release as shown in Fig. 40. Fig. 40 Assemble the plastic release only at the end of the Fig. 40a installation and after adjusting the by-pass valves. For future adjustments of the by-pass valves (for example in case of periodic maintenance), just unscrew and remove the by-pass cover only...
EXTERNAL RELEASE - ACCESSORY ON DEMAND for MINI TANK - HALF TANK - HALF TANK LARGE Fig. 44 Fig. 45 CONNECTION OF THE RELEASE CABLE INSIDE THE OPERATOR Install the external release as shown in the images above - Fig. 44 and Fig. 45; For further information, consult the assembly instructions of the EXTERNAL RELEASE KIT BREATHER SCREW REMOVAL...
Page 19
OIL LEVEL CHECKING AND REFILL - for FULL TANK - FULL TANK LARGE DISTRIBUTOR OPTIMAL OIL LEVEL PLANE SHAFT UNSCREW AND LIFT UP HORIZONTAL COMPLETELY IF NECESSARY TOP UP THE OIL THE RELEASE GROUP INSERTED POSITION Fig. 51 Fig. 52 Fig.
Page 20
(rear and front brackets, swing fork) Check the correct operation and the conditions of all accessories, especially the safety devices ANNUAL Lubricate the shaft with SEA grease (GREASE GL 00 code 65000009) ANNUAL FTER THE MAINTENANCE IT IS NECESSARY TO REPEAT THE AUTOMATION TESTING AND COMMISSIONING...
Page 21
PRICES: Prices are based on the Price List in force. Discounts and quotations from Sales Dept. and other selling branches must be approved by SEA. Prices are F.O.B SEA warehouse in Miami and do not include shipment costs. SEA reserves the right to modify the price list at any time and provide notice to its sales network.
Need help?
Do you have a question about the LIBRA MINI TANK and is the answer not in the manual?
Questions and answers