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A trademark of Meijer Special Equipment 8. Inspection and maintenance The telescopic forks operate with a closed self-lubricating hydraulic system. The telescopic forks are delivered with Rando HD 32 hydraulic oil. The servicing that must be performed to keep the telescopic forks in good condition is very limited. What is important is that the servicing is carried out in time and correctly. Check the telescopic forks each day for damage and oil leakage. If there is indeed damage or leakage this should be reported to the person in charge. During all service work on the telescopic forks the fork-lift truck should be switched off, the ignition key must be removed and there may be no more pressure in the system. Consult the maintenance schedule for further inspection. In some cases it may happen that the maintenance schedule must be adjusted, for example in extra polluted environment. Plugs should then be replaced more often, in particular the wiper ring. The telescopic forks must be tested again minimum once per year by a specialist according to the ISO 5057 norm. The results of the test should be kept in a test book. In case parts of the piston or the cylinder head must be replaced, this should be carried out by a skilled person or contact an officially authorised importer listed on the website (www.telescopicforks.com). 8.1. Maintenance schedule Table 8.1 shows which parts must be controlled, what actions must be taken and when this must be done. The numbers of the description correspond to the telescopic fork in Figure 8.1 (page 16). Description Daily Weekly 6 months Yearly or 1000 hours or 2000 hours 1 Inner fork – lubricating upper and underside with grease X 2 Checking inner fork for leakage X 3 Checking wear resistant strips for wear (for REE: also check wear pad bottom inner fork) X 4 Checking the underside of outer forks for wear, especially at the back side X 5 Checking for dirt in outer casing and eventual removal X 6 Checking cylinder head for leakage X 7 Checking inner fork according to ISO 5057 X Table 8.1 Maintenance schedule 14 © MEIJER SPECIAL EQUIPMENT 2005
Here comes a commentary on the maintenance schedule from Table 8.1: A trademark of Meijer Special Equipment 1. As lubricating grease we recommend Novatex EP 2, this is a special type of calcium grease for lubrication of heavy loaded sliding parts that protects against wear and corrosion. 2. In case of leakage in the curve of the inner fork immediately demount the telescopic forks from the fork-lift truck and take contact with your dealer. In case of leakage of couplings tighten or replace them. 3. When the wear resistant strips are thinner than 1,5 mm, they should be replaced or filled up with filling plates. For REE: When the hardened wear pad at the bottom of the telescopic fork is so worn-out that it is level with the bottom of the outer fork, it should be replaced. This is to prevent excess wear of outer and inner forks. The remainder of the old wear pad must be removed and the new wear pad must be welded under the telescopic fork according to the welding figure in Appendix 13. ATTENTION: Take out interior work (piston, piston rod and cylinder head) from telescopic fork BEFORE welding. 4. When the hardened wear pad in the heel of the outer fork is level with the underside of the outer fork or is even thinner than the original thickness of the outer fork then the outer fork should be replaced. 5. Eventual dirt in the front part of the outer casing can affect the stroke length of the telescopic forks. Depending on the application it may need to be controlled either more or less often. 6. The wiper ring can be easily controlled if the outer casing is taken off (for instructions on removing the outer fork, see par. 8.4). 7. The international standard ISO 5057 must be applied for checking your telescopic lift truck forks, except for paragraph 5.6.1 because the inner fork may not be subject to wear. © MEIJER SPECIAL EQUIPMENT 2005 15
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English - Meijer Special Equipment

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