When locating an air blast oil cooler on a machine, it should be situated so that it is at least half the fan diameter clear of any obstructions on both sides of the core. I recommend connecting the cooler so that oil flows from bottom to top, or if the tanks are on the sides, from lower connection (inlet) to … Read more
Tag Archives: hydraulics troubleshooting
The #1 Predictive Maintenance Technique For Hydraulic Machines
In the appendix of Reliability-Centered Maintenance II, John Moubray lists 102 proactive maintenance techniques in six categories:
1. Dynamic effects: monitoring of vibration, pulses and acoustic emissions (17 techniques)
2. Particle effects: monitoring of particles in the component’s operating environment, e.g. lubricant (15 techniques)
3. Chemical effects: monitoring of chemical elements in the component’s operating environment, e.g. lubricant (27 … Read more
The Problem With Troubleshooting By ‘Fault Code’
One of our member’s sent me this troubleshooting story:
“The company I worked for had invested in a complete overhaul of the engine on an older Mack truck, sleeper version in otherwise poor cosmetic shape. In addition, they were the proud owner of a mechanically poor, cosmetically good Mack in a non-sleeper configuration. The decision was made to do a … Read more