Maintenance of Hydraulic Breaker

Every 3 hours of work with a hydraulic hammer:

· lubricate the hydraulic breaker bushing with a special grease

IMPORTANT:  The pick must be pressed against the surface in a vertical position until it stops.

· Check the hydraulic hoses, quick couplings, hydraulic oil temperature, and the reliability of the hydraulic breaker mount. 

After the first 10 hours of operation of the hydraulic breaker:

Re-tighten the bolts and nuts of all components and sections, including the hydraulic block tie bolts, accumulator mounting bolts, hydraulic fitting mounting bolts, and adapter plate bolts.

Every 10 hours of operation with a hydraulic breaker (daily operations):

· External inspection: Always inspect the hammer head for burrs or nicks. Remove any if found. Inspect the hammer body or jaws for cracks. Check the nitrogen pressure in the pneumatic chamber and the tightening of the adapter plate bolts. 

Every 50 hours of operation with a hydraulic breaker (weekly operations):

· Be sure to check the gap between the pick and the bushing. Each hydraulic breaker has its own tolerance for the maximum amount of wear. Replace the pick and bushing when the gap approaches the maximum. 

· Check the tightening of the screws on the control unit housing.

Every 100 hours of operation with a hydraulic breaker:

· Replace the excavator's hydraulic filters.

· IMPORTANT: replace the hydraulic oil in the excavator hydraulic system every 600 hours of operation (different manufacturers of imported equipment have tolerances for normal excavator operation - from 1000 to 2000 m/h). When an excavator is operating with a hydraulic breaker, the hydraulic oil heats up much more than in digging mode. Therefore, the viscosity of the oil must be constantly monitored and checked. The purity of the hydraulic oil must be no worse than class 14 according to GOST 17216-71, visible mechanical inclusions and water in the oil are 100% unacceptable. 

The first 250 hours of operation with a hydraulic breaker:

· Perform a complete hydraulic oil change.

Every 1000 hours of operation with a hydraulic breaker or 6 months:

· Inspect the hydraulic breaker at an authorized service dealer - check the condition of the hydraulic line, quick coupling, and high pressure hose. 

Every 2000 hours of operation with a hydraulic breaker or 12 months：

· Check all seals, striker, hydraulic breaker sleeve, condition of hydraulic filter, accumulator diaphragm and tie bolts. 

· Check the condition of the piston, lower and upper bushings of the tool. 

· Replace the upper and lower buffer (damper).  

· Replace the impact block tie rods.

Remember that a hydraulic hammer is a technically complex product, the repair of which, if not used and maintained correctly, will cost you at least 1/3 of the cost of a new one. 

Therefore, try to adhere to the operating and maintenance instructions as strictly as possible and the hydraulic hammer will serve you for a very long time.