Normally problems in daily maintenance of crawler excavators
The crawler excavators shift pressure, boom, bucket and steering are normal, but the crawler excavators still cannot move forward and backward
First check whether the crawler excavators transmission is short of oil and whether the crawler excavators oil inlet pipeline is blocked,
and then check the crawler excavators transmission oil pan (electrical motor) and torque converter filter. If crawler excavators metal fragments are found,
it is certain that the parts in the large overrunning clutch in the transmission are damaged. If aluminum chips are found in the transmission
oil pan and torque converter filter, crawler excavators is certain that the parts in the torque converter are damaged. At this time, the crawler excavators transmission and torque converter must be disassembled and inspected for repair and replacement of damaged parts. If the above reasons are eliminated and the vehicle still cannot walk, it can be determined that the bolts around the second gear component in the gearbox are cut off, or the output gear of the intermediate shaft falls off, so that the crawler excavators power cannot be output. Troubleshooting: disassemble the 8-shaped end cover of the gearbox, take out the second gear component, and replace the crawler excavators cut-off bolt. The bolt material is 40Cr, which must be quenched and tempered, and can never be replaced by ordinary bolts.
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