When newly installed components are problematic or damaged, the causes are often sourced from the discharge stage during the repair process. There are two main causes:
1. Urgent repairs
In hasty repairs that heavy equipment can be reused immediately, the source of the damage is usually unrecognized and resolved.
2. Ease of repair
Sometimes, ease of component replacement can slow down the repair. Some components are easy to reach and relatively easy to remove and install. For example hydraulic pump. Replacement parts can be removed and installed easily without checking for the presence of debris and contamination. Contamination is a major cause of wear and breakage of components prematurely.
The following are the key steps in component disposal:
1. Record the release of the component
Be sure to record important information about component releases for future reference. This information is very important to help determine the cause of future component replacement, and the level of damage that can occur, system contamination, and level of system cleaning required. Noteworthy is:
· Date of repair
· Engine serial number and duration of machine usage
Figure 3.7 Engine serial number
- · Serial number of components (if any)
- · Duration of component usage
- · Check the component repair / oil analysis records
2. Mention the cause of component replacement
The cause of component replacement is usually included in the following categories:
- · Damage
Unexpected fixes due to faulty components or poor performance. This often results in fragments of damaged components contaminating the machine system. If damage occurs, the source of the cause should be sought and addressed.
- · Aus
Components are depleted due to wear. The performance of the machine system gradually decreases to the point where component replacement must be performed
- · Planned Component Replacement (PCR)
The PCR time period is known so that the component can be replaced before it is damaged
3. Check the engine system of debris and contamination
Filter, strainer and magnetic drain plug in the machine should always be checked to make sure there were no debris in it and estimate the level of contamination of the machine system. This step is important to help determine the extent to which the machine system needs to be cleaned to prevent future damage.
Figure 3.8 Magnetic drain plug
4. Keep the system clean
When removing the components, the engine room and all hoses must be sealed or plugged so that the engine system does not contain contamination from the outside.
Figure 3.9 Closing holes in the machine
5. Schedule to repair or rebuild related systems
Sub-systems of major components are often contaminated or not as large as the main component life cycle if not repaired or rebuilt. If the sub-system is not reconditioned correctly at the same time that the main component is rebuilt, the main components will usually wear out or get damaged prematurely.