Komatsu PW170ES-6 Excavator always operate carefully to avoid getting stuck in mud. If the machine does get stuck in mud, use the following procedures to get the machine out.
1.WHEN ONE SIDE IS STUCK
When only one side is stuck in mud, use the bucket to raise the wheels then lay boards or logs and drive the machine out. If necessary, put a board under the bucket also.
When using the boom or arm to raise the machine, always have the bottom of the bucket in contact with the ground. (Never push with the teeth). The angle between the boom and arm should be 90” to 110”. The same applies when using the inverting bucket.
2.WHEN BOTH SIDES ARE STUCK
When all wheels are stuck in mud and the machine will not move, lay boards as explained above, and dig the bucket into the ground in front. Then pull in the arm as in normal digging operations and put the travel levers in the FORWARD position to pull the machine out.