ICS M4 Grinding Gears
My friend has a ICS C15 and had it for about 4 months and when ever he fires it, it makes a weird noise and the nozzle moves abit and back and no barely any air.
I tried mortar height, I tried different upper gearboxs with mine and his, I opened his lower gearbox and nothing I could see a problem maybe not perfect shimming, and tried different batteries.
I'm thinking most likely the lower gearbox and I fired it without a upper gearbox and it spins but once I put the upper it does a noise of awfulness .
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