How to Maintain an Engineering Clutch

Engineering clutch maintenance requires a tailored plan based on the type (e.g., pneumatic, electromagnetic, mechanical, hydraulic, or magnetic powder clutch). Core maintenance key points include cleaning, lubrication, adjustment, inspection, and environmental control, as detailed below:

I. General Maintenance Principles
Cleaning and Anti-fouling
Regularly remove dust and oil from the clutch surface to prevent impurities from entering the friction surface and causing slippage or wear.
Magnetic powder clutches must be protected from water and oily materials. Non-stick lubrication is recommended when near the gearbox.
Lubrication Management
Mechanical clutches: Grease the release bearing every 60 hours (using high-temperature sodium-based or molybdenum disulfide grease), and the release sleeve every six months.
Pneumatic clutches: Regularly add lubricant to the sliding contact surfaces to reduce wear.
Hydraulic clutches: Remove and clean the release bearing every 300-500 hours, heat it, and then immerse it in butter to cool before reinstalling. Clearance and Stroke Adjustment
Mechanical Clutch: Check the pedal neutral distance (mechanically operated, approximately 20mm; hydraulically operated, the pedal should be aligned with the brake pedal and have approximately 3mm of travel).
Electromagnetic Clutch: Regularly check the armature travel and adjust the clearance between the brake surface and the turntable if wear occurs.
Hydraulic Clutch: Adjust the operating mechanism, remove dirt, and tighten the connecting bolts.
II. Maintenance Key Points by Type
1. Pneumatic Clutch
Air Pressure Control: Regularly check the air pressure transmission system to ensure stable operating pressure and avoid overload or prolonged continuous operation.
Friction Plate Cleaning: Add gasoline through the inspection port, start the engine, run it in neutral for 3-4 minutes, drain any contaminated oil, and repeat the cleaning.
Seal Check: Regularly check the seals of the air passages and connecting lines to prevent leaks.
2. Electromagnetic Clutch
Bolt Tightening: Check the bolts on the electromagnet, housing, yoke, coil, and wiring to prevent loosening.
Armature Adjustment: Observe the armature stroke length and adjust the clearance if wear occurs. Environmental Control: The dry electromagnetic clutch must be used in a water- and oil-free environment. A protective cover is required in dusty environments.
3. Mechanical Clutch
Pedal Inspection: Gently press the pedal with your thumb. The movement should be approximately 20 mm when resistance is felt. If abnormal, adjust the cable sheath or LE ring.
Oil Removal: Inspect the friction plate and pressure plate mating surfaces monthly. Remove any oil contamination immediately. Damaged shaft end oil seals should be replaced.
Hydraulic System Inspection: Inspect the master cylinder, working cylinder, oil pipes, oil seals, and other areas for oil stains. Replenish hydraulic oil promptly.