Hi. I have a 656D. A few weeks ago I learned something new (which I now see was mentioned in this forum before)...don't have the glow plugs active while the battery charter is also on. So, after frying all my plugs, I ordered new ones. My question is about the green sheet of paper that came with them saying the plugs are warranted only if connected to the proper controller.
Looking at the wiring diagram in my 656 operators guide, it appears the circuit has just the momentary switch, the meter, and the plugs in parallel. Is there anything else in the glow plug circuit? Does the meter have any additional resistance within it beyond the fraction of an Ohm needed to move the needle? Is the 'controller' in this case just a thumb on the button?
Looking at the wiring diagram in my 656 operators guide, it appears the circuit has just the momentary switch, the meter, and the plugs in parallel. Is there anything else in the glow plug circuit? Does the meter have any additional resistance within it beyond the fraction of an Ohm needed to move the needle? Is the 'controller' in this case just a thumb on the button?