I'm curious if anyone else has ever had, or might have some insight, on a situation we encountered with our engine at a structure fire this morning.
Without going into a long, drawn out explanation, here's what we ran into. When we put the pump into gear, niether the "Ok to Pump" lights in the cab or on the pump panel lit, but you could hear the shifter "clunk" into pump gear. We could get a little pressure when we wound up the engine, and at about 1600 RPM it felt like the transmission shifted and we'd pick up pressure.
Now here's the kicker. After the fire, we were messing with things at the station. We had a battery charger hooked up to see thinking the alternator wasn't pushing enough to charge the batteries. All of the sudden the "OK to Pump" lights come on and the primer starts whining. Got the primer shut off (you have to give it a whack to get it to disengage) and tried pumping it, since pressure kicked up at idle. Pumped like nothing was ever wrong with it!
Any clues as to what might cause this? We're looking into the alternator and the primer control as possible issues, thinking that maybe it's an electrical issue. Thought I'd see if anyone might have some insight before we tear into it hard and heavy.
Without going into a long, drawn out explanation, here's what we ran into. When we put the pump into gear, niether the "Ok to Pump" lights in the cab or on the pump panel lit, but you could hear the shifter "clunk" into pump gear. We could get a little pressure when we wound up the engine, and at about 1600 RPM it felt like the transmission shifted and we'd pick up pressure.
Now here's the kicker. After the fire, we were messing with things at the station. We had a battery charger hooked up to see thinking the alternator wasn't pushing enough to charge the batteries. All of the sudden the "OK to Pump" lights come on and the primer starts whining. Got the primer shut off (you have to give it a whack to get it to disengage) and tried pumping it, since pressure kicked up at idle. Pumped like nothing was ever wrong with it!
Any clues as to what might cause this? We're looking into the alternator and the primer control as possible issues, thinking that maybe it's an electrical issue. Thought I'd see if anyone might have some insight before we tear into it hard and heavy.
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