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Improper attachment of work tools could result in injury or death. Do not operate this machine until you have positive indication that the coupler pins are fully engaged. Check for engagement by:
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| Illustration 1 | g00821410 |
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Selection of a hydraulic hammer must be done with extra care. Use of a hydraulic hammer not recommended by AVSpare could result in structural damage to the machine. Consult your AVSpare dealer for hydraulic hammer information. |
Only use the hydraulic hammer to break rocks, concrete, and other hard objects. Before you start hydraulic hammer operation, place the machine on a level, stable surface. If the machine must be placed on a slope or on a rough surface, be careful during operation.
If the machine is equipped with a cab, close the front window before you start hydraulic hammer operation. If the machine is equipped with a canopy, use protective equipment such as a hard hat and protective goggles before you start hydraulic hammer operation.
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In order to avoid structural damage to the host machine or the hydraulic hammer, comply with the following: Do not attempt to break rocks or concrete by burying the hammer tool completely into the rocks or concrete. Do not apply a prying force to the hammer tool in order to remove the hammer tool from the material. |
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Frequent idle strokes (blank firing) have a deteriorating effect on the hammer. Do not operate the hammer without proper down pressure against the object. |
Do not allow the hydraulic hammer to continuously operate at one location and for more than 15 seconds. Change the location of the machine and repeat the procedure. Failure to change the location of the machine could cause the hydraulic oil to overheat. Overheated hydraulic oil could cause damage to the accumulator or to the cylinder seals.
Stop hydraulic hammer operation immediately if any of the hydraulic hoses are twisting rapidly. This indicates that the accumulator is punctured. Consult your AVSpare dealer for the necessary repairs.
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Do not use the dropping force of the hydraulic hammer to break rocks or other hard objects. This could cause structural damage to the machine. Do not use the sides or back of the hydraulic hammer to move rocks or other hard objects. Doing this could cause damage not only to the hammer but to stick or boom cylinder. Do not operate the hydraulic hammer with any of the cylinders fully retracted or extended. Doing this could cause structural damage to the machine, resulting in reduced machine life. |
Do not use the hydraulic hammer to lift an object.
Do not operate the hydraulic hammer while the stick is vertical to the ground. This could allow the stick cylinder to vibrate excessively.
Do not operate the hydraulic hammer on objects in water. This could cause the chisel to rust and the seal on the sliding section to be damaged.
Operate the attachment control levers carefully in order to keep the hydraulic hammer's chisel from hitting the boom.
Do not operate the hydraulic hammer with the upper structure sideways to the undercarriage. Before you start hydraulic hammer operation, place the upper structure in the recommended position that is shown in the following illustration. Any other operating positions could make the machine unstable. Any other operating positions could place excessive loads on the undercarriage.
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| Illustration 2 | g00101503 |
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(1) Incorrect position
(2) Correct position (3) Incorrect position (4) Correct position | |
The use of hammers shortens the life of hydraulic oil. If a hammer is used, the following measures should be taken:
- Shorten the interval for changing the hydraulic oil to 1500 service meter hours.
- Use SAE 30 hydraulic oil or 15w40 hydraulic oil in order to sustain seal life.
This list was completed at the time of publication. There may be additional work tools that have been approved since that time. Consult your Cat dealer for an updated list of approved work tools.