Just bought a manitex some time last year and I'm hearing grinding noise when I swing the boom but only when I do it slow I thought it was the swing motor and took it and got resealed but dint work I just thought it was the swing motor because we had already problems with the hydraulic system because the last owner dint really used so a lot of the seals went bad the thing is I dint hear the noise when I worked the crane on winter when the summer came that's when I started hearing the noice the crane has 2,700 hours so please anything else I can check for. ?
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