Thursday, October 1, 2015

Hey Grinderguy, how do I keep shingle dust off my grinder?

Everyone has the same issue when it comes to dust whether it’s from shingles, C&D or just wood. It destroys air filters and plugs radiators creating downtime and lost production along with costing a whole lot of dollars on filters.
If you do not have an SOP(Standard Operating Procedures) for operating a grinder, you better create one. Here are a few things to include in your list:
·         Use compressed air, or even a leaf blower if that is all you have, to clean off engine and blow out coolers and air filters every day. A plugged radiator will not only increase coolant temperature, but it will increase fuel temperature also. There is usually a fuel cooler attached to the engine radiator and a hydraulic oil cooler somewhere also. Remember, increased fuel temperature make fuel usage increase, so the cooler the fuel the better fuel usage you will have. A plugged air filters will decrease fuel efficiency also because of the lack of air into the engine.  A 5% greater fuel usage on a 1000 hp engine equals about another $50 a day in fuel.
·         Turn radiator or air filters into the wind and make sure it is upwind of the grinding chamber if possible. This allows the wind to hit the radiator or filters first and then blow the dust from the grinding and stacking areas away from them both.
·         Clean debris off the grinder so you are able to see all bearings, grease lines, hydraulic lines, etc.
·         At the end of the day, if you are using a portable machine, move the grinder out of the area you were grinding in and clean up that area with a loader. Clean the area and then wait until morning before replacing machine into the grinding area. This way allows you to observe the wind pattern the next morning before resetting up the grinder.
Including these items will improve engine performance, reduce costs and increase productivity.
I was told by one customer whom would grind shingles, that they used PAM® Cooking Spray to cover the engine and radiator every time they ground the shingles. They only ground shingles on occasion but the dust from the tear off shingles plugged their radiator and covered and melted onto their engine. I am assuming they did not spray onto exhaust manifold, turbos , etc. but they did cover the entire radiator and engine. Afterward, they used a pressure washer to clean off the dust and the cooking spray and it was perfectly clean. I am NOT suggesting you do this, but if you do this or something similar, I would love to hear what you used, how it worked and what issues it created?
The standard operating procedures will not only help operationally, it will reduce and almost eliminate the chance of your grinder catching fire and really costing you more dollars and downtime.

Questions?         Dave Whitelaw

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