Maintenance Tips with Don Tombs
This month I’d like to talk about maintaining good clean voltage on your boom & trailer pumps.
This is a common oversight when trying to locate a pumping fault. A lot of faults I look at relate back to voltage especially in new pumps with computer-controlled operation, it is usually caused by a dirty earth or low voltage. It’s very important for reliable running of your pumps that you keep an eye on this and maintain your system, it doesn’t take much effort.
Firstly, make sure your batteries are in good working order, have water in the cells if they are lead acid type and if you are unsure have a battery supplier carry out a load test on the batteries to determine their condition.
Then make sure your battery terminals are clean and tight, the correct way to do this is to remove the terminal and clean it with a tool or emery paper. If the terminal won't tighten enough DON’T put a screw down the side of it! You can pack the post out with a strip of clean plumbers lead which they use for flashing. At the other end of each cable remove them and clean that connection with emery tape or a wire brush.
Look over your pump and locate all your earth cable points, on some pumps there could be several, when located remove them for cleaning, along with removing the paint where they contact the body of the pump to make a clean connection.
Next measure your battery voltage with a voltmeter (a cheap one will work) Start the engine up and with a small amount of revs, you should see a higher voltage reading which will tell you your alternator is charging the system.
Finally check your alternator drive belt is in good condition and is not too loose causing slipping.
If you are unsure about any of this or have questions, please send me an email and I will personally contact you.