The two Lonking references 60308000038 and 60308000039 differ by one digit, but the catalog describes them for different positions. The hydraulic return filter LG835.13.09.01 / 60308000038 and the hydraulic suction filter LG835.13.09.02 / 60308000039 should be separate lines on a parts request. Start by confirming which position the workshop is servicing.
Use the reference confirmed for the position shown in the machine’s parts information. A hydraulic return filter and a hydraulic suction filter are identified by their position in the circuit, not by how similar they look. The two references on this page are catalog identifiers, not a cross-reference or a claim that the products can be interchanged. If the workshop needs both items, have it identify each location before the buyer asks the supplier to match the numbers.
Read the old label or any legible marks and record the machine model and serial number. A photo of the filter beside its housing, taken when it is safely accessible, is more informative than an isolated close-up. On a sketch or photo, mark the position that the technician has confirmed. If an earlier service invoice gives a different reference, include it as a previous order number rather than silently substituting it for the current marking.
A quote for a Lonking hydraulic filter may cover an element alone or a larger assembly. Ask the supplier to state what is included. If you also need a seal, cover or housing, write it as a separate requirement and have the supplier confirm whether it is included or priced separately. Do not assume that everything shown in a product photo is in the shipment.
When the original unit is available for comparison, provide photos of the ends and any identifiable mounting or sealing features. Send dimensions with units and say where each measurement was taken. If the element is damaged, a measured value may not describe the original shape. Ask the supplier for the corresponding specification rather than rounding your reading to a size that seems close. Do not infer filtration grade or other performance characteristics from a photograph or from the fact that a candidate element appears to fit the housing.
For a scheduled service, write one purchase line for the return position and one for the suction position. Keep the part numbers in the line descriptions and ask that each package be labelled with the supplied reference. If the vendor offers an alternate number, request written identification of the circuit position and evidence for the proposed match. Keep the approval with the order so the receiving team can tell an accepted substitute from a picking error.
When the shipment arrives, read the full number on each package, not only the last two digits. Check the contents against the quoted scope, particularly where an element and an assembly were both discussed. If both items are destined for the same machine, label the bins by position before sending them to the workshop. The service team should use the applicable machine instructions for fitting and commissioning; this purchasing checklist does not specify service intervals or installation settings.
Do not assume so. The catalog lists one as a return filter and the other as a suction filter. Match the circuit position and exact reference to the machine documentation before ordering.
A stores label such as “Lonking filter 38” is too short to control an issue to the workshop. Write the full reference and circuit position on the bin label and keep the supplier’s label visible. If one filter is returned to stock after a job, check the package against the original order before putting it back. Keep a photograph of the approved label in the stock record; this lets the next buyer check a different packaging style without relying on memory. Where a fleet uses several machine builds, keep the machine serial evidence with the work order rather than printing a blanket fitment claim on the bin.
Keep return and suction references in separate stock code and bin records. When either filter arrives, follow the receiving inspection checklist before releasing it to stock.
