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For information relating to the servicing of HP-Manually operated hydraulic pump, see the servicing instructions, which are available on the Hi-Force website. Hi-Force reserves the right to make changes to this document at any time without notice.
If in doubt on the correct use of any Hi-Force equipment, contact your nearest Hi-Force office or distributor. Only qualified personnel should be allowed to operate hydraulic equipment. If an operator has not been trained on high-pressure hydraulic equipment and its safe usage, consult your local Hi-Force sales office or distributor who can offer training courses for operators.
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NEVER attempt to solve, or clean-up leaks in the system while the system is pressurised. Immediately replace any worn or damaged parts using genuine Hi-Force parts only. Do not use any hydraulic equipment if you are under the influence of alcohol, drugs or medication.
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Operating Instruction Manual: Serial Numbers: OM-HP-ALUMINIUM-01 From: DF2001 Servicing of hydraulic equipment must only be undertaken by a qualified technician. DO NOT drop or place heavy objects on a hydraulic hose, as this may cause internal damage, which could result in rupture of the pressurised hose.
4.0 Oil Specification Hi-Force tools will use 1 of 2 grades of oil, dependant on the tool. The tools are designed to operate at temperatures between -20°C and 80°C. Details of the oil used in this product can be found in, Section 6.2 Temperature Range: Degrees Celcius (°C)
Operating Instruction Manual: Serial Numbers: OM-HP-ALUMINIUM-01 From: DF2001 5.0 Component Identification Models: HP211, HP212, HP232 and HP252 Oil Reservoir Outlet Port 3/8 NPT Handle Release Valve Transit plug Identification plate* Breather *Later models have the name plate mounted on the side of the pump head. Component Identification (HP211 Model shown)
Operating Instruction Manual: Serial Numbers: OM-HP-ALUMINIUM-01 From: DF2001 5.0 Component Identification Models: HP232D and HP252D Oil Reservoir Outlet Port 3/8 NPT Handle Inlet Port 3/8 NPT Transit plug Directional Control Valve Breather Identification plate* *Later models have the name plate mounted on the side of the pump head. Component Identification (HP252D Model shown)
Operating Instruction Manual: Serial Numbers: OM-HP-ALUMINIUM-01 From: DF2001 6.0 Installation / Setup 6.1 Before First Use / Preparation Check for any signs of wear in the pump or connected components. Unscrew the transit plug (3) and fit the breather (4) this will maximise the oil volume available and prevent oil reservoir pressure build up.
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Operating Instruction Manual: Serial Numbers: OM-HP-ALUMINIUM-01 From: DF2001 IMPORTANT: Make sure that all coupler threads are fully engaged. Only use hoses rated at 700bar with a 4:1 safety rating on burst pressure. 6.4 Bleeding Trapped Air from the Hydraulic System The bleeding of trapped air from a hydraulic system must only be performed by qualified personnel who have been trained and are competent to do so.
From: DF2001 7.0 Operation Hi-Force will not always be aware of what equipment this pump will be used with. It is the responsibility of the owner and all operators to read, understand and comply with all appropriate safety warnings and operating instructions relating to the equipment used.
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Operating Instruction Manual: Serial Numbers: OM-HP-ALUMINIUM-01 From: DF2001 Double acting pumps: Ensure that both the advance and retract ports are connected from the pump to the cylinder. Failure to comply with this can result in tool failure and/or severe personnel injury. “A”...
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Once the required pressure is achieved, return the directional control valve (7) to the centre position. This will hold the load. This pressure hold function should not be used as a load holding device. If load holding is required, a Hi-force inline locking device should be used. ...
Replace the transit plug to prevent the entry of moisture and/or dirt into the oil. This will also prevent any accidental environmental spillage. 9.0 Troubleshooting Hi-Force HP manually operated hydraulic pumps should be serviced and repaired only by authorised Hi- Force repair centres. The following table gives possible causes and solutions for common problems. TROUBLESHOOTING GUIDE...
4. Handle is hard to a. The low pressure relief valve is Contact your local pump in low pressure. set been adjusted to high. Hi-Force office / distributor. b. Double acting: Couplers not fully connected. Release pressure and check fitment as per section 6.3 Follow bleeding procedure as per section 5.4...
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