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Vetter Low Pressure Lifting Bags 0.5 Bar / 7.25 Psi Vetter Medium Pressure Lifting Bags 1 Bar / 14.5 Psi Vetter Low Pressure Bags 0.5 Bar / 7.25 Psi

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Vetter Low Pressure Lifting Bags 0.5 Bar / 7.25 Psi Vetter Medium Pressure Lifting Bags 1 Bar / 14.5 Psi Vetter Low Pressure Bags 0.5 Bar / 7.25 Psi Vetter Low Pressure Lifting Bags 0.5 bar / 7.25 psi Vetter Medium Pressure Lifting Bags 1 bar / 14.5 psi Vetter Low Pressure Bags 0.5 bar / 7.25 psi List of contents Introduction Safety instructions Introduction ..................... 14 Lifting bags may only be • Use only Vetter original operated with compressed fittings. Only these Safety instructions ........... 14 air, never with flammable or fittings have been aggressive gases. The tested in the works in Operating with com- lifting bags may only be accordance with the pressed-air cylinders ....... 15 filled using original Vetter Pressure Vessel Operating Low Pressure fittings. Check the equip- Legislation. ment before and after every Lifting Bags with dual • Please check the use for perfect working deadman controller ......... 16 perfect condition of the order. Pay attention to DIN equipment and lifting Operating Low Pressure 7716 if stored for longer bags before and after Lifting Bags with dual fitting periods of time. We will be use. controller ........................ 16 happy to supply an excerpt from this standard. • Insert lifting bags at Operating with other com- pressed-air sources ......... 17 suitable points so that at least 75 % of the bag’s Practical tips ................... 18 surface is beneath the load. Troubleshooting .............. 18 • Avoid angles larger than Maintenance and 30° (relationship servicing ......................... 19 between base and load to be lifted). The bag Recurrent tests ............... 19 could be catapulted out - Performance ................ 19 of the gap. Create a - Tables ......................... 21 parallel base to the load to be lifted whenever Technical data possible using a sturdy - Low Pressure Lifting substructure. Bags ........................... 22 - Medium Pressure Lifting • Never place more than Bags ........................... 23 two bags on top of one - Low Pressure Bags ...... 24 another. EC declaration of • Secure load against conformity ....................... 25 slipping. Keep inserting 14 props the higher the • Protect bags against Operating with com- lifting height. flying sparks during pressed-air cylinders welding and cutting • If a substructure is used work. Connect pressure regulator always ensure that this with T-screw to com- is stable and firm. The • Do not place extra loads pressed-air cylinder. substructure must on bags, e g. hydraulic support at least the props, winches, falling Close handwheel (3) of complete area of the loads. pressure reducer. bag and should be • Never work under Open cylinder valve (5): wider and longer than it suspended loads, manometer (1 ) shows the is high. never reach under pressure in the cylinder. load. Keep your Set the back pressure to distance. Danger approx. 2 bar with the ad- Risk of slipping • Avoid shearing stresses justing screw (4) (display on by squeezing the bag manometer (2)). Never place metal on when the load is metal when propping lowered. up loads! • Never stand in front of 1 2 • Place stones, branches the bag, always to one 5 or similar materials side when in use under the bag to im- since it can be cata- 3 prove adherence if used pulted out from under on slippery sur-faces the load. (ice, snow, mud, etc.). 4 • Avoid point loads, e.g. building cramps, bolts. • Never use bags on Connect pressure re- sharp edges or on very ducer’s air supply hose to hot days. Use suitable dual controller with nipple. liners and cover the complete surface of the Push nipple into coupling bag. until it catches. 15 Vetter Low Pressure Lifting Bags 0.5 bar / 7.25 psi Vetter Medium Pressure Lifting Bags 1 bar / 14.5 psi Vetter Low Pressure Bags 0.5 bar / 7.25 psi Operating Low Pressure 7.25 psi or 1 bar / 14.5 psi. Operating Low Pressure Lifting Bags with The lever automatically Lifting Bags with dual dual deadman controller returns to the middle posi- fitting controller tion = deadman position. Connect the controller to Connect the controller to the Lifting Bag with the in- the Lifting Bag with the flation hose. inflation hose. 8 Push nipple into twin-lock coupling until it catches and 3 tighten by hand (9). 10 If the working pressure 9 exceeds 0.5 bar / 7.25 psi or 1 bar / 14.5 psi the safety valve opens. Push nipple into twin-lock The max. tolerance for coupling until it catches and opening and closing the tighten by hand (9). safety valve may be Open the handwheel (3) on ± 10 %. The manometer (8) the Vetter pressure regula- shows the pressure in the tor. bag. Pull back the lever (10) on Push the lever forwards to 9 the controller to inflate the deflate the Lifting Bag and/ Lifting Bag. or lower the load. Keep an eye on the mano- meter (8) and the load. Once the desired working pressure for lifting force and Place the bag in position. height is reached stop Close the ball valve (6) and inflation by releasing the discharge device (7) on the lever at a max. of 0.5 bar / head of the safety valve. 16 Open the handwheel (3) on or fault, find the cause and Operating with other the Vetter pressure regula- remedy. compressed-air sources tor. The max. tolerance for Vetter adaptor sets are Open the ball valve (6) to opening and closing the available for other com- inflate the Lifting Bag and safety valve may be pressed-air sources. raise the load. ± 10 %. The manometer (8) shows the pressure in the 17 18 bag. Open the discharge device on the head of the safety 7 6 valve (7) by turning anti- 19 clockwise to deflate the 15 6 3 Lifting Bag and / or lower 8 16 21 7 the load. 20 • Compressed-air mains Keep an eye on the internal (15) pressures in the bag shown • Truck tyre inflator (16) at the mano-meter (8) of the dual controller and the load. The safety valve Warning prevents an overfilling of the bag. Tyre inflation connec- tor must be protected Depending on the type, by a safety valve. position and behaviour of the load during lifting, the • Truck air brake Lifting Bags are filled either systems (17) • simultaneously and equally or Warning • gradually and / or individually. Seal off control line with the dummy Close the ball valve imme- coupling (18). Secure diately in the event of a stop truck with wheel blocks. 17 Vetter Low Pressure Lifting Bags 0.5 bar / 7.25 psi Vetter Medium Pressure Lifting Bags 1 bar / 14.5 psi Vetter Low Pressure Bags 0.5 bar / 7.25 psi • Truck tyre valve (19). Practical tips placement of the lifting For inflation with a bags, Vetter Mini Lifting You should normally use at normal hand or foot Bags can usually be used least two bags of the same pump. to quickly create the size and design. Place necessary space. • Truck tyre valve con- each bag as close as nector (20). To take air possible to the end of the from the spare tyre. load. Troubleshooting Pull bag under the load with If a safety valve opens 22 a working line or lower prematurely because a between loads to be foreign body has pene- separated. On account of trated the system, open the the low bearing pressure discharge device at the [maximum 0.5 kg / cm2 head of the safety valve 2 23 (7.25 psi) or 1.0 kg / cm fully by turning anticlock- (14.5 psi)] substructures wise so that compressed- are rarely required, even on air can escape. If this does soft bases. not remove the foreign body the top part of the • Building site com- Secure the load against valve must be unscrewed. pressor (21). slipping during lifting by Unscrew in an anticlock- bracing or other suitable • Hand (22) or foot (23) wise direction using a pipe measures. Place Lifting pump with manometer. wrench. Carefully remove Bags completely under the valve cone and remove Reducing adaptors and air load wherever possible the foreign body in front of pumps are available from (though with at least 75% of the sealing plate. Screw the the manufacturer. their surface). The lower the top part of the valve back contact area between the If the maximum pressure on tight and check for lifting bag and load, the from the compressed-air perfect operation. The pre- lower the lifting power. supply exceeds 4 bar / set pressure may not be 58 psi a pressure reducer Place the side wall material changed. If the lead or must be used and the between the top and leaded plate on the top part pressure reduced to bottom of the bag before of the valve is removed a approx. 2 bar / 29 psi. inserting under the load. If safe function can no longer the insertion height or area be guaranteed - return the is inadequate for a proper device to the manufacturer. 18 If this ices up because of a f) Press patch firmly onto Performance of tests excess atmospheric prepared area of the Tests on delivery by user humidity in connection with bag and rub. low temperatures use a g) Leave bag at least 48 During this test in accord- normal defroster (such as hours in deflated state. ance with DIN 14 152 Part is used for car locks). 1, Item 5.2* the device The bag should be tested should be checked by the by a safety expert after the user’s qualified tester to Maintenance and repair. ensure that all parts have servicing been delivered and that none are damaged. The Minor damage such as Recurrent tests bags are to be inflated up to cracks, cuts or punctures 0.2 times the permissible can be repaired by the user Tests for lifting bags are working pressure, i.e. to 0.1 with the enclosed repair kit based on the Pressure bar / 1.5 psi.
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