Komatsu Hydraulic Excavator PC200-7B

Preparation and Safety Measures

Set the work equipment in a stable condition and stop the engine.

Apply the locks securely to the levers.

Ensure no one is in the surrounding area.

Set the bottom surface of the bucket on a block and ensure stability.

Set the safety lock lever to the LOCK position.

Use a hammer and drift to knock out lock pin (2) without damaging rubber pin lock (3).

Check for loose nuts, bolts, or leakage

Check condition of work equipment and hydraulic system

Check for loose wiring, play, and dust accumulation

Remove flammable materials from around battery or engine muffler

Is there any leakage of fuel or oil?

Check for damage, wear, play in work equipment, cylinders, linkage, hoses

Ensure the engine is stopped and cooled down before starting maintenance.

Set the safety lock lever to the LOCK position when leaving the operator's seat.

Ensure the machine is on level ground before cleaning or changing the coolant.

Use a permanent type of antifreeze or antifreeze containing ethylene glycol.

Ensure antifreeze is kept away from flame and avoid contact with skin and eyes.

Prepare a container with a minimum capacity of 21.5 liters (5.68 US gal) to catch drained coolant.

Prepare a hose to supply water.

Ensure the engine is stopped before starting inspection, cleaning, or maintenance.

Wear protective glasses, dust mask, or other protective equipment when using compressed air.

Be cautious of the reaction force when removing the outer element, especially at high places or where footing is poor.

Is the air cleaner clogging monitor flashing?

Clean the air cleaner element if the monitor is flashing.

Has one year passed since the element was installed?

Adjust the seat position before starting operations or after changing the operator.

Ensure the seat is adjusted so that the control levers and switches can be operated freely and easily with the operator's back against the backrest.

Fore-and-aft adjustment: Pull lever (1) up, set the seat to the desired position, then release the lever.

Adjusting reclining: Pull lever (2) and set the seat back to a comfortable position, then release the lever.

Adjusting seat tilt: Forward tilt - Push lever (3) up to adjust the angle of the front of the seat.

Adjusting seat tilt: Rear tilt - Pull lever (4) up to adjust the angle of the rear of the seat.

Adjusting seat height: Combine adjustments 1 and 2 to move the seat up or down.