We know very well that for some people the dismantling of the hydromotor with the gear is first because each of us had to start their adventure with machines. What is it going with the problems related to their exploitation. Therefore, we present a simple guide on how to effectively dismantle the device so that you can easily mount it later and by the way do not damage something else.
The guide is based on a specific example of a mini excavator CAT 301.8C
The first step we take is to remove the track, so first we loosen the tensioning wheel of the track so that it can be removed from the guide and the drive wheel. We get rid of the grease that will show up next to the calamit and take on the removal of the caterpillar, let’s remember that the piston clamping the caterpillar is pushed to the end, it will greatly facilitate its subsequent installation.
What’s next ?
After removing the caterpillar, we start to clean the hydromotor and the transmission from the sediment. Then we pull off the cover of the driving motor housing, which is located on the inner part (between the tracks). We remove the soil that has accumulated behind the lid. Hydraulic hoses appear. For easy assembly, select or remember which hose and where thicker wires have been installed are the power cords. We are starting to unscrew the hydraulic hoses, remember that after unscrewing the pipe we will start to pour oil out of the system, so be sure to have plugs to screw the wires, if we disassemble in harder conditions, somewhere in the middle of the field (and we know that this is often the case ) you can replace the plugs with wooden pointed twigs, of course, we do not recommend this method although it is a way out in extreme situations.
This will not prevent oil leakage but will slow it down significantly. However, disassembly of the hydromotor is a good time to change the oil in the hydraulic system which should be exchanged in the CAT 301.8C excavator at least every 1000 mtg (twice the time of changing the engine oil). It may be problematic to unscrew the hoses, which were covered with a layer of earth behind the lid because they are often corroded.
That’s why it’s good to stock some kind of WD-40 rust remover so that you can loosen the wires. After disconnecting the wires, we start to unscrew the bolts securing the body of the reducer to the frame of the track. After unscrewing the screws, we need to clean the ramp levels to facilitate assembly.
In order to reduce shipping costs (weights), you can unscrew the drive wheel of the track from the gear housing.
After the regeneration of the device, it remains us to mount it in exactly the same way as we dismantled it.