Mounting on base machine
2 – 10
9. Start the engine of the base machine, and raise the boom. Then operate the bucket cylinder to
straighten the twisted connection hose of the hydraulic breaker.
10. Turn the high-/low-pressure stop valve on the hydraulic breaker pipe at the end of the arm by 90
degrees (the line on the head shows the direction of flow), and connect the hydraulic circuit. (Set
the stop valve in the fully open position.)
NOTICE
The rod may shoot out by the hydraulic pressure in the piping, so do not stand near the
rod.
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n Removal of hydraulic breaker
Remove the hydraulic breaker in the reverse order of mounting.
• Place the hydraulic breaker on a flat place.
• Stop the engine of the base machine, and let the air pressure out of the hydraulic oil tank.
• Fully close the stop valve at the end of the arm.
• Mount the union cap and oil hose plug on the oil hose and the end of the arm.
• Place the removed pins and retaining bolts/nuts on the hydraulic breaker side.
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