Seite 12 von 18 WH-1, WH-2, WH-3, WH-4
3.7 All safety equipment has to be checked for completeness and flawless condition:
- instruction markings and warning signs (safety instructions)
- check safety cover (e.g. motor-safety covers, heat protection etc.) if they are available and if they are in good condition..
3.8 Working under loads is not allowed if they are only lifted by hydraulic cylinders. If the work is indispensable sufficient
mechanical supports are needed additionally.
3.9 Do not stress hoses mechanically (pulling, buckling etc.).
3.10 When working in the vicinity of live components and lines, suitable precautions must be taken against current conductions and
high-voltage flashovers on the hand pump and connected devices.
3.11 Prevent electrostatic charges with possible subsequent sparking from occurring when the unit is in operation.
3.12 When setting up the unit, ensure that the functionality and safety of the unit is not impaired by the influence of high external
temperature.
4 Instructions for maintenance and service
4.1 For the execution of maintenance and service work, tools and workshop equipment adapted to the task on hand are absolutely
indispensable.
Work on the hydraulic system must be carried out only by personnel having special knowledge and experience with hydraulic
equipment.
4.2 Before putting into operation clean the machine, especially connections and threaded unions, of any traces of oil, fuel or
preservatives before carrying out maintenance/repair. Never use aggressive detergents. Use lint-free cleaning rags and pay attention
that the components are meticulously clean during reassembling after repair.
4.3 During dismantling of machines it is necessary to collect the outrunning hydraulic liquids completely, so that they cannot reach
the ground. They have to be disposed properly accord-ing to the instructions.
4.4 Always tighten any screwed and thread connections that have been loosened during maintenance and repair. Observe the
stipulated torques.
4.5 Aggressive material (acid, lye, solvent, vapour) can damage the machine. It is necessary to clean the whole machine if it must
be exceptionally operated under such conditions or gets into touch with these materials. Additionally, the machine must be checked
as described under 3.6.
5 Safety Instructions for Hydraulic hoses
All instructions as to safe use of hydraulic hoses can be found in the booklet deliverd with the hoses.
6 Intended use
6.1 General Instructions
The WH-1, WH-2, WH-3, WH-4 hand pumps are designed for operating single acting hydraulic cylinders and rescue devices. The
WH-2, WH-3, WH-4 hand pump is designed for operating single or double acting hydraulic cylinders and rescue devices. An
operation of cylinders other than is possible, but it must be approved by Weitner in each individual case.
Warning!
Please always observe the product restrictions regarding operating pressure, load limit values and
operating conditions. The operating pressure must not exceed the lowest max. operating pressure
of all system components.
NEVER set the pressure control valve to an operating pressure that is higher than the nominal
pump operating pressure specified in section 16. Higher settings may result in equipment damage
and/or personal injury.
Please ensure that the used volume of the hand pump (refer to section 16) is sufficient for
operating the connected cylinders and units.
The oil volume required for operation is specified in the technical data or the operating
instructions of the respective cylinders or units.
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