Gantry crane maintenance of pneumatic components

Maintenance of the central tasks is to ensure the supply of clean dry compressed air systems, pneumatic systems to ensure air tightness, oil mist lubrication components to ensure the necessary lubrication to ensure the pneumatic components and systems are specified operating conditions (such as the use of pressure, voltage, etc.), in order to ensure the pneumatic actuator according to the requirements of scheduled work.
Lubricator best selection of one week up the oil once a specification, up the oil, pay attention to fuel reductions. If the fuel consumption is too small, should be re-adjusted drop of volume, volume is still reduced after adjustment drip drip or not, you should check whether the installed anti Import lubricator, oil duct is blocked, hoist gantry crane whether the specifications of the selected lubricator appropriate.
Monthly Quarterly maintenance work should be higher than the daily and weekly maintenance work more carefully, but still limited outside to check the scope. Its main contents are: carefully check leaks everywhere, tighten loose screws and fittings, terminal blocks check valve exhaust air quality, check the adjustment part of the flexibility of checking the correctness of indicating instrument, check the solenoid valve The reliability of the switching operation, checking the quality of the cylinder piston rod and all from the outside to check the content.
Maintenance work can be divided into regular maintenance work and regular maintenance work. The former refers to maintenance work must be carried out every day, which can be weekly, monthly or quarterly maintenance. Maintenance work should be recorded. Maintenance work should be recorded in order to facilitate future troubleshooting and handling.
Check the leak should be used gantry  steel crane  at various checkpoints Tu soap and other measures, its display is better than listening to the sound leakage is more sensitive.
Check the quality of the air discharge valve should note the following three aspects: First, to understand whether the modest oil contained in the exhaust, the method is a clean sheet of white paper placed near the mouth of the exhaust valve, the valve at work three to four cycles, if only a very light white spots, indicating that the well-oiled, the second is to understand whether the exhaust gas containing condensate, three is to understand the exhaust vent should not be whether there is leakage. A small leak component indicates early damage (presence of micro-leakage sealing valve clearance is normal). If poor lubrication, chemical pump lubricator should consider the suitability of the installation location, the appropriateness of the selected specifications, drip volume adjustment was reasonable and management practices to meet the requirements, if any condensed water discharge, you should consider whether the position of the filter suitable for all kinds of practical and components in addition to water use is reasonable, condensate management compliance. The main reason is leaking valve or cylinder seal bad, due to lack of air pressure. This system sealing valve leakage is large, it may be spool and sleeve wear due.
The cylinder piston rod often exposed. Piston rod is being observed scratches, corrosion and the presence of partial wear. According to whether the leak can be judged with the piston rod bushing inside the front cover, gasket contact case, compressed air treatment quality, the existence of lateral load cylinder and so on.
Such as safety valves, emergency shut-off valve, etc., die casting mold rarely used. Periodic inspection must confirm their operating reliability.
Let gantry  sino hoist  repeatedly switching solenoid valve, the sound can be judged from the switching valve is working properly. For AC solenoid valves, if any beeps, you should consider moving core and the core is not completely static pull, pull faces dusty, sub-ring off or damaged.