Heinrich de Fries GmbH Heinrich de Fries GmbH, Gauss Str. 20, D-40235 Düsseldorf Heinrich De Fries GmbH will be named HADEF in the following text. Original operating- and maintenance instructions in German language. Translation in other languages is made of the German original.
Failure to follow the instructions of this manual can lead to unpredictable hazards. For any resulting damage or personal injury, HADEF assumes no liability. The unit was designed and built following a risk analysis and careful selection of the harmonized standards that are to be complied with, as well as other technical specifications.
In order to avoid severe injury, please pay attention to the following when using the equipment: Use protective clothes/equipment. Do not wear long hair hanging down open. Do not wear rings or other jewelry. Do not wear clothes that are too big/wide. ...
If the unit is put into motion, any persons in the immediate vicinity must be informed by calling to them! Please pay attention to the regulations for load carrying devices UVV for both positive and non-positive methods of attaching loads. ...
when persons are under suspended loads Design HADEF ratchet lever hoists are compact hoists with suspension hook for stationary use. Illustration 2 Functions The load is lifted, lowered or tensioned by operating the lever. The load pressure brake prevents automatic lowering of the load.
slipping clutch for these cases. NOTICE! The best protection against functional failures in case of extreme environmental impact is the regular use of the equipment. Important components Gear Gear components are made of high-quality material. Load pressure brake Holds the load in any position.
7.1.1 Free-wheeling of chain DANGER! Never activate the free-wheeling mechanism if the hoist is under charge. Switching ON the free-wheeling mechanism switch in middle position Illustration 7 Turn the free-wheeling mechanism anti- clockwise, if necessary pull the loose fall of the chain jerkily.
A free-wheeling OFF B free-wheeling switched ON Pull the free-wheeling wheel upwards in direction ▲ . The chain can be pulled through in both directions. Illustration 12 C Switch OFF the free-wheeling. Switching OFF the free-wheeling mechanism D free-wheeling OFF ...
Definition “qualified person” (former expert) A “qualified person” has learned, due to occupational training and experience and the job that the person has done, the skills needed to tests the material for one’s work. Definition “licensed qualified person” (former approved expert) A “licensed qualified person”...
11.1 Periodic checks Independently from the regulations of the individual countries, lifting devices must be checked at least yearly by a qualified person or licensed qualified person regarding its functional safety. 11.1.1 Components to be checked The following must be checked: ...
If the same lifting operations are carried out constantly, the switching area from a lifting to a lowering movement must be given special attention. Thoroughly effected lubrication of the chain will prolong the life of the chain by approx. 20 times, compared to dry run with unlubricated chain.
NOTICE! According to EN 13157 lifetime is 1500 operating cycles (lifting/lowering movements) with 300 mm lift with nominal load and normal operation conditions. Use by heavy conditions can shorten the product lifetime. In these cases, the thickness of the brake lining must be checked more than 1x yearly.
Remedy Check the ratchet lever hoist by listening to the noise it makes: Lifting: Move the lever forward and backwards - it should make click Lowering: Only move the lever backwards not forward - it should make click Problem Cause Remedy Overload Reduce the load to nominal load...