Table of Contents
Summary of Contents for TEHMA SP400
- Page 1 SAFETY MANUAL USE AND MAINTENANCE SPLITTING CYLINDER SP400-SP600 IMPORTANT READ THIS MANUAL BEFORE USING THE TOOL KEEP ALWAYS FOR FUTURE TRANSLATION OF THE ORIGINAL VERSION REFERENCES Rev. 6 11/2020 ALWAYS FOR FUTURE REFERENCES - 1 -...
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Page 2: Table Of Contents
Index PAGE 1 Safety Policy 2 Product Description 3 Safety Norms 3.1 Prohibited uses 3.2 Risks connected with the use of the product 3.3 Hoses warnings 3.4 Cleaning & Storage of hoses 4 Set Up 4.1 Tool Presentation 4.2 Equipment Check 4.3 Pump Unit Check 4.4 Connection of the equipment 4.5 First Use... -
Page 3: Safety Policy
1 Safety Policy TEHMA tools are designated and developed with the purpose to give the best result and performance when used properly. Operator safety is one of the first aspect of the product design. In order to avoid danger of injury, the equipment should only be operated by persons with appropriate training in the safety aspects and with a good knowledge of the equipment too. -
Page 4: Product Description
2 Product Description Counter wedges Central wedge Pin extraction cap Handle Quick-coupling female Quick-coupling male Low-pressure hose (Return) High-pressure hose Rear handle 10 Control cam 11 Hydraulic cylinder - 4 -... -
Page 5: Safety Norms
3 Safety Norms 3.1 Prohibited uses TEHMA tools have been designed exclusively for professional use for demolitions, industrial use and rescue. Any use other than those of this nature is therefore prohibited! 3.2 Risks connected with the use of the product... - Page 6 Never hold the hoses in the hands, nor step on them when the tool is working and the hoses are under pressure. The hydraulic fluid contained in the equipment can be dangerous if swallowed or in direct contact with the skin. When boulders or large freestanding blocks of rock and concrete are split, the split pieces may fall to the ground, for this reason, never stand on or near the block and note in...
- Page 7 Always dispose of exhausted hydraulic oil and any rags deriving from cleaning and maintenance operations, in an appropriate manner according with local laws. NOTE: TEHMA is not liable for any damages resulting from improper use of the equipment or from modifications made to its products. - 7 -...
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Page 8: Hoses Warnings
3.3 Hoses warnings Hoses are to be inspected for previous damages always before the use. If necessary, they must be replaced. This operation is very important and the operator is responsible of this control for his safety and the correct working of the device. -
Page 9: Set Up
The pump unit must be switched off and set on unpressurised circulation before to be connected to the tool. NOTE: It’s very recommended to use the TEHMA power pack to drive the equipment. If the power unit is a different manufacturer, you have to ensure... -
Page 10: Connection Of The Equipment
4.4 Connection of the equipment On the side of the tool there are two short hoses. The one on the right ending with the female coupling is the high-pressure hose, the other one the return hose. They are connected to the power pack through one or more pair- extension hoses. -
Page 11: First Use
ATTENTION: the dust protection caps must put back on every time the hoses are decoupled. 4.5 First Use The tool need to be prepared when used for the first time and after a repair. Connect it to the power pack and proceed advancing and retracting completely the central wedge twice without any load. -
Page 12: Drilling
The drill-hole must be deep enough to allow for the wedge in extended condition, without fail. If it is too shallow, the wedge will strike the bottom of the hole and possibly snap off. The correct depth is 440 mm (SP400) / 640 mm (SP600) - Fig. C) - 12 -... -
Page 13: Drill-Hole Straightness
WARNING: always make sure of the correct size and straightness of the hole made using the aluminum tube supplied with the tool. If it is not possible to fully insert the tube into the hole, do not use the device on this hole but drill a new more precise hole. -
Page 14: Commands
7.2 Commands 1) Neutral position The control cam is in the central position and the tool is set on unpressurised circulation. 2) Wedge extraction Turning the control cam in a clockwise direction and keeping in this position the central wedge is extracted. Wedge retraction Turning the control cam in an anti-clockwise direction and keeping in this position the central... - Page 15 This indicates that the splitting process has been successful. E) As soon as the wedge is fully advanced, the cut-off valve on the TEHMA power pack relieves the pressure in the circuit, whereupon the pressure suddenly falls to about 70 bar.
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Page 16: Installing The Enlarging Counter Wedges
H) As soon as the wedge is fully retracted, the cut-off valve on the pump unit again relieves the pressure in the circuit whereupon the pressure suddenly again falls to about 70 bar. I) The splitting cylinder can now be removed from the hole and the splitting process repeated in the next hole. -
Page 17: Enlarging Splits With Cs350 Combi-Shear
8.1 Enlarging splits with CS350 combi-shear The TEHMA CS350 Combi shear can be used to enlarge a split which has already been widened with standard or special enlarging counter wedges. Blocks of concrete or rock can be forced apart or lifted to a maximum distance of 360 mm. -
Page 18: Lubricating The Wedge Set
WARNING: If the special grease used comes from a different manufacturer, it is necessary to ensure that it complies with TEHMA specifications. A) With a screwdriver or similar, spread the wedge and one counter wedge apart to gain access to the contact faces, then insert something to keep the space between the wedges. -
Page 19: Function Check
9.3 Function Check Every 350 operating hours or in case of doubt regarding the safety and reliability of the equipment, a function check can be performed to verify the existence of problems or damages. Proceed advancing and retracting completely the central wedge twice without any load, the movement has to be flawless, without any jerks or suspicious noises. -
Page 20: Tool Disposal
TEHMA are fabricated with recyclable materials that can be stored, disposed and scrapped without particular cautions. Materials and components used by TEHMA do not contain asbestos or other elements that require special caution for their use. - 20 -... -
Page 21: Repairs
Servicing may only be carried out by the manufacturer or personnel trained by the manufacturer and by the authorised TEHMA dealers. Only TEHMA spare parts may be used to replace all components. ATTENTION: Before to proceed to with repair works ensure the complete cleanliness of all components and the device. -
Page 22: Technical Data
Leaks from the Piston damaged Repair by an piston rod authorised dealer or Defective rod seal TEHMA itself. If the malfunctions can’t be resolved, please inform an authorised TEHMA dealer immediately. Technical Data SPLITTING CYLINDER SP400-SP600 SP600 Model SP400 1330 x 195 x 195... -
Page 23: Warranty
13 Warranty • All parts produced by TEHMA are guaranteed for a period of twelve months from the date of delivery to the final customer, against defect of: material, workmanship-assembly. Cost of labour and transports are not covered by warranty and should be paid by the customer. Parts and complete components not produced by TEHMA such as engines, compressors, alternators, etc., are covered by the warranty of the manufacturer. -
Page 24: Label
14 Label 15 Manufacturer and European authorised representative (E.A.R.) Manufacturer: European authorized representative (E.A.R.): TEHMA SA Virgilio Tentori Srl Vicolo Concordia 1, 6932 Via Belfiore 31/D, 23900 Lugano - Breganzona, Switzerland Lecco, Italy 16 Fac-simile EU declaration of conformity - 24 -...
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