Setup, Compatibility & Care
Compatibility Check: Before purchase, verify that your chainsaw's bar length, chain gauge (1.3mm or 0.05"), chain pitch (3/8"), and drive link count (33) match the specifications of this ALM chain. Specifically, it is confirmed to fit Greenworks 8-inch Pole saw models (20102, 20157, 20157BA, 20192, 20212) and Mac Allister MGS 1815-Li.
Installation: Ensure the chainsaw is switched off and unplugged or the battery is removed. Consult your chainsaw's manual for specific instructions on removing the bar and chain cover. Loosen the bar nuts. Remove the old chain, ensuring it is not under tension. Place the new chain onto the guide bar, ensuring the drive links sit correctly in the bar groove and the cutters are facing the correct direction for cutting (typically forward). Re-attach the bar and chain cover. Adjust chain tension according to your chainsaw manufacturer's recommendations – the chain should be snug but still rotatable by hand. Tighten the bar nuts securely.
Care: Regularly clean debris from the chain and guide bar. Ensure the chain is correctly tensioned before and during use; a loose chain can cause damage or be a safety hazard, while an overtightened chain causes excessive wear. Sharpen the chain when cutting performance degrades. Store the chain in a dry place, ideally with a light coat of oil, when not in use.