Hydraulic cylinders for tillers daily maintenance full tips

hydraulic cylinders for tillers daily maintenance full tips

Hydraulic cylinders for tillers, as the core actuating parts of industrial equipment, have a direct impact on the efficiency and reliability of machinery. Scientific maintenance can reduce leakage, wear and tear, and extend life by 30%-50%. This article provides practical maintenance guidelines from the aspects of maintenance of key parts, fluid management and cycle maintenance.

1. Sealing System: Leakage Prevention Core Maintenance

Seals (piston seals, piston rod seals, dust rings) are the most vulnerable parts, 70% of the leakage originates from seal failure.  

Maintenance points.

Daily inspection: Before starting the machine, observe the piston rod to see if there is any dripping, and remove the dust, iron filings and other impurities accumulated at the root of the dust ring.

Periodic Replacement: Replace the seal every 1-2 years for normal working conditions, and every 6-12 months for harsh environments such as mines. When replacing, check the seal groove wear, use special tools to avoid scratching the lip.

2. Piston rod: the focus of protection of exposed parts

The surface condition of the piston rod directly affects the sealing life, and mechanical damage and corrosion should be prevented.

Maintenance steps.

Cleaning and lubrication: Wipe the exposed surface daily to remove dust and oil; every 50 hours of operation, apply lithium grease to the contact area of the guide sleeve to form lubrication protection.

Surface inspection: check the chrome layer every week, find the depth>0.2mm scratched or rusted, timely grinding and coating of antirust oil, serious damage needs professional repair.

Dust protection: install dust cover, dusty environment every shift to blow the accumulated dust, to avoid particles into the guide sleeve gap.

3. Hydraulic oil: system operation of the “blood” management

Oil pollution and degradation is the main cause of cylinder wear, need to strictly control the cleanliness and physical and chemical indicators.

Management core.

Cleanliness control: Installation of three-stage filtration, regular testing of particle size to ensure that the ISO cleanliness standards.

Performance monitoring: Monthly testing of viscosity and acid value, oil temperature control at 40-60 ℃. Cycle filtration before new oil injection to remove water and air.

4. Connection and Installation: Eliminate Stress Hazards

Cylinder head bolts and flange connections are loose or unevenly stressed, easily leading to piston rod bias load and seal damage.

Check points.

Bolt maintenance: check the preload of end cap bolts with a torque wrench every week (error ≤ ±5%), and add anti-loosening washers or locking adhesive for important connections.

Weld inspection: welded cylinder annual magnetic particle flaw detection, repair > 0.5mm surface cracks, casting cylinder focus on checking the flange stress area.

5. Maintenance points of the cycle

Daily: clean piston rod, check seal leakage and oil level.

Weekly: tighten bolts, clean dust cover.

Monthly: Replace the oil filter element, check the viscosity and acid value of the oil.

Quarterly: Replace oil suction filter element, calibrate cylinder coaxiality.

Annually: Replacement of fine filter element, full disassembly and maintenance, inspection of sealing grooves and piston rod surface.

The key to hydraulic cylinders for tillers maintenance is “prevention first”. Through the daily maintenance of core components such as seals, piston rods, oil, etc., combined with scientific cycle maintenance, leakage, jamming and other failures can be effectively reduced. It is recommended to establish maintenance files and record maintenance data to realize the upgrading from experience maintenance to accurate maintenance, which provides guarantee for the efficient operation of the equipment.

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