Milwaukee Grinder Repair – Replacing the O-Ring (Milwaukee Part # 34-40-0560)

This O-ring is used to seal your grinder spindle assembly to the gear case housing. The O-ring fits tightly around the spindle housing and seals against the gear case. The O-ring keeps the gear case lubricant from leaking from the housing. Over time, the O-ring can fail and break. This will cause oil to leak […]