Chapter 4: Maintenance
50 M47-17041-EN
8. If you notice any problems resulting from this inspection, contact your local Instron Services
department as directed on page 17 for immediate assistance.
Clean the columns
For frames with a J1-style crosshead, it is generally not necessary to clean the columns on any regular
interval, although it is recommended that you do not allow the columns to become overly dirty. They can
be cleaned with a petroleum-based solvent or cleaner to remove dirt and oil.
For frames with a J3-style crosshead, it is necessary to clean the columns at the frequency stated in the
“Preventative maintenance schedule” on page 43. The cleanliness of the columns will affect:
• How well the crosshead is clamped by the crosshead lock cylinders. Dirt and oil could allow the
crosshead to slip.
• The life span of the wipers that are used in the crosshead. These wipers scrape away any dirt or
debris that is on the columns and will deteriorate more quickly if the columns are not kept clean.
In most cases, it is sufficient to clean the columns with a petroleum-based solvent or cleaner to remove
dirt and oil. If necessary, use steel wool or a ScotchBrite
TM
pad to remove heavy dirt or oil. Wipe the
columns dry; any residue on the columns could prevent proper clamping of the crosshead. Do not apply
any lubricant to the columns.
Hydraulic power supply (HPS)
The HPS should be maintained according to the “Preventative maintenance schedule” on page 43.
Check the oil cleanliness
The cleanliness of the oil in the reservoir should be checked at the frequency stated in the “Preventative
maintenance schedule” on page 43. Check the appearance of the oil through the sight gauge; it
should be a clear amber color. If the oil appears dirty, it should be changed (see “Change the oil” on
page 53).
Add oil to reservoir
It should only be necessary to add oil to the reservoir if an oil leak is evident. However, the oil level
should be checked at the frequency stated in the “Preventative maintenance schedule” on page 43.
Check the oil level through the sight gauge on the HPS. The oil should be to the top of the sight gauge
when the frame’s hydraulic cylinder is fully retracted. When it is necessary to add oil, perform the
following procedure.
Equipment and supplies required
• A 4 mm hex key (supplied)
• A clean funnel with a mesh filter
In the United States and Canada, an oil sample test kit is available for purchase from Instron Services;
contact your local Instron Services department as directed on page 17 for more information about the
test kit.
All equipment and supplies must be supplied by the customer unless noted as “supplied”. For a list of
equipment that was supplied with the system, refer to “Ancillary parts” on page 57.
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