Howdy,
This may sound funny, but it is true. I have contacted the manufacturer's of those chains with guardlinks that come up higher than the cutter by end of life, and that one with the folded over depthgauge, to find what the officially recommended method is for lowering the depthgauges when the chain is professionally maintained in the saw shop. To date, no manufacturer has given a sensible reply! As near as I can figure, on the Vanguard chain, you are not supposed to lower the depthgauge. No official word on the tripple hump at all (and no mention in the maintainence manual).
My concern was prompted by my observation that these chains required twice as much time to service as other chains, making it cost prohibitive for the chains to be sharpened by a servicing dealer. You have to charge at least $10 to sharpen a chain!
I refuse to accept the idea of "hitting them with the grinder" as a viable and safe method to be used for chains for the general public.
Has anyone heard any official word on this from any of the manufacturer's? I used to say that may be the chains were just designed to get out of the show room, like the shocks on a new car, but this is not funny anymore since there are so many of them out there and they seem to get quite dull
by the time they come into the shop to be fixed up. It's a real looser for the servicing dealer.
Regards,
Walt Galer