AJ 1000M, Operations Manual & Parts List

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(3) Regular breaker inspection and maintenance
Regular inspection is essential for keeping the hydraulic breaker operating in its best condition.
Consult the AJCE service station for a regular inspection and maintenance. Customers are
recommended to contact the service station for inspection within six months after delivery.
(4) Replacement of chisel
Chisel is deformed of burrs produced in a long-term use. When the chisel's tip is worn out, chisel is
liable to slip. Then, sharpen the chisel tip. Grinding the chisel tip many times to sharpen the edge
will make the heat-treated hardened surface layer disappear and will wear out the chisel rapidly.
In this case, replace with a new chisel. If the gap between the chisel and the lower bush becomes
large, the piston the fail to fit into the chisel resulting to damage. When the gap is over 9mm,
replace the upper bush together with the chisel.
∎ Replacement Order
- Remove the snap-ring and the chisel pin in order with a
330mm-long steel bar. When reassembling, align
groove in chisel to chisel pin hole and insert tool pin.
- Reverse disassembly procedures to install the replacement
tool. Before installing a new chisel, check each part for wear,
breakage, scores, etc. Remove burrs and swellings on each
tool pin, apply a coat of grease to the movable and frictional
areas of the chisel pin and chisel, and finally install the chisel.
Excessively deformed chisel pins will make a difficult replacement
of the chisel. Therefore, chisel pins are required to be checked
every 100 to 150 hours of operation.
- If replacement chisel is not a genuine part, we do
NOT WARRANTY the performance of the other parts of the
breaker.