Kubota KM55 Quick Start Guide

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1. Before Use

• Confirm the breaker is correctly fitted, with the boom and toggle retaining pins locked.
• Confirm the correct tool (moil point or chisel) is fitted and the tool lock pin is in place.
• Confirm the tool has been greased.
• Confirm the carrier excavator is a suitable size and standing stable and level. The carrier must have a protective screen in front of the operator.
• Clear and control a 20-metre exclusion zone around and below the work area.

📌 If anything looks loose, damaged or leaking, do not use it - contact us.

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2. Fitting

We normally fit this for you.

• Adapter bolts tight; boom and toggle pins fully inserted and locked.
• Hydraulic hoses connected with no leaks, fitted with the accumulator side facing the cab.

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3. Operating the Breaker

• Position the tool at 90 degrees (square) to the surface.
• Press the tool firmly onto the material before starting - never start 'in the air'.
• On large objects, start near an edge and work inwards - never start in the middle.
• Apply steady down-pressure through the boom.
• Never strike the same spot for more than about 15 seconds - reposition if it won't break.
• Keep the boom off full extension and full retraction.

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4. Never

• Blank-fire (run the breaker without the tool pressed onto material).
• Pry, lever or bend with the tool.
• Use the breaker to lift, drag or move debris.
• Work near electric cables or services - the breaker is not electrically insulated.
• Operate in an explosive or flammable atmosphere, or near flammable materials, fumes or dust.

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5. Greasing

• Grease the tool about every 2 hours with the correct chisel paste, with the tool pushed fully in.

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6. What to Watch Out For (Stop & Inform Us)

• Hydraulic leaks or damaged/chafed hoses.
• Loose tool or retaining pins.
• A sudden drop in breaking performance.
• Overheating.

📌 The tool gets very hot in use - never touch it.

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7. Stopping / Changing the Tool

• Switch off immediately if anyone enters the danger area.
• Before any tool change: stop the excavator engine and relieve the hydraulic pressure.
• Never touch the tool while the hydraulics are connected.

📌 The breaker has an internal pressurised accumulator - never attempt to dismantle it. Contact us.