The Bitter-Sweet Nature of Proactive and Predictive Maintenance

money diceI recently purchase a used SUV. And the plan is to do some touring with the family. Starting with a trip across the Nullarbor Plain from the west to east coast of Australia. It’s a BIG trip. If you spend 12 hours a day in the car driving, you can cover the distance in four days.

But the Nullarbor is a desolate place. There’s not much out there. You’re real lucky if you see a kangaroo or emu between gas stations. And they’re hundreds of miles apart. It’s certainly not somewhere you want to breakdown (even more unacceptable for me, … continue reading »

How To Cool A Hot Hydraulic System

Not an ideal pump mounting positionWhat are you’re options when faced with a hydraulic system that is overheating? Assuming the system’s cooling circuit is working as it should, i.e. no faults, then my standard answer, and the only correct one, is there are only two possible options:

  1. reduce heat load on the system; or
  2. increase heat dissipation from the system.

Anything you can do to alleviate the problem will fall into one of the above two categories. For example, you can reduce the load (power draw) on the system. This should reduce internal leakage and therefore reduce the heat load on the system. You can … continue reading »

How To Connect An Air-Blast Heat Exchanger

cooler2When positioning an air blast heat exchanger, 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 exchanger so that oil flows from bottom to top, or if the tanks are on the sides, from lower connection (inlet) to upper connection (outlet). The reason for this is to purge all air from the unit quickly and fill it completely for maximum efficiency.

The other connection issue for air-blast heat exchangers, which requires attention during initial installation, relates to whether it is single … continue reading »