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MAINTENANCE AND ADJUSTMENTS
from Case CE620 CB1150 CB1450 CB2850 CB3750 CB4000 & CB5200 for 88 & 90 Series EXCAVATOR OPERATOR MANUAL
BEFORE USING THE HYDRAULICBREAKER
• Do not attempt to operate this hydraulic breaker unless you have first read and perfectly understood the safety messages and instructions featuring in this manual. • Operating the hydraulic breaker requires full attention and care on the part of the operator can avoid accidents. Get to know the hydraulic breaker’s possibilities and limitations and the working space required. • Every day, inspect the hydraulic breaker to detect any signs of oil or hydraulic fluid leakage. Tighten the connections or replace any defective components and grease as necessary. • Make sure the hydraulic breaker is in good condition. Never use a hydraulic breaker which is in poor condition or if there are components missing, as this could cause serious injury. • Make sure the maintenance procedures explained in this manual are carried out correctly.
USING THE HYDRAULIC BREAKER
• Protect yourself and the vicinity from flying chips of rock. • Wear ear protection when working with the machine door or windows open. • Move everybody away before operating the hydraulic breaker. • Never immerse the hydraulic breaker in water as this could cause damage. • Never use the hydraulic breaker to sweep the ground to spread rubble, to push objects or carry out lifting operations.
• Do not operate the hydraulic breaker with the attachment cylinders up to the end of their stroke (extended or retracted). • Do not operate the hydraulic hammer if the tool is in contact with some part of the machine.
• Place the tool against the object at a 90 degree angle. Avoid small irregularities on the object which will break easily and cause either idle strokes or an incorrect working angle. • When demolishing vertical structures (e.g brick walls), place the tool against the wall at a 90 degree angle. • Use a safety screen to protect yourself from flying debris. Keep the cab windows closed during operation.
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