Maintenance Skilsaw Model 77 Worm Drive

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Old 12-10-11, 11:54 AM
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Maintenance Skilsaw Model 77 Worm Drive

Is there a good substitute for the worm drive lubricant from Skil?

At almost $10 for 8 oz, seems too expensive.
 
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Old 12-10-11, 12:11 PM
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And how many lifetimes would it take you to use 8 oz of the stuff??? Not sure of a substitute, but I don't use wormdrives. I do like left handed saws, and use a PC. MUCH lighter than a wormdrive.
 
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Old 12-10-11, 03:23 PM
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I wonder how important it is to change the oil? I bought an almost new craftsman worm drive saw from a boy desperate to come up with drug money about 25 yrs ago. I've never changed the oil in it
I always change the oil regularly in everything else, don't know why I always forget about that saw
 
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Old 12-10-11, 03:41 PM
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Oil

I was wondering if 90 weight gear oil would work.

I bought the saw at a yard sale today. Looks to be in good shape. The previous owner said he had not changed the oil.

Yep, it weighs a ton.
 
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Old 12-10-11, 03:44 PM
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Can you find any specs on the $10 for 8 oz. stuff?
 
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Old 12-10-11, 04:00 PM
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Oil

No specs yet. Plan to look at 8 oz tube at the store when I can find it. Hoping the label will have specs.

Here is a quote from the owner's manual:

NOTE: If oil is extra dirty or thick, replace the
plug and run the saw for one minute to warm
up the oil. Then remove oil plug and turn saw
upside down, to remove all oil. Fill housing
with kerosene. Replace plug and run for one
minute to flush out the gear housing. Drain out
the kerosene and add fresh Skil lubricant. With
a new saw, change the oil after the first ten
hours of use.
 
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Old 12-10-11, 05:26 PM
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Ken, you may find it the same consistency as regular nail gun oil, not sure. But since it is under constant friction, it may break down without special additives.
 
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Old 12-11-11, 12:31 PM
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Oil

I have read posts outside this forum suggesting everything from 140 weight gear oil to 30 weight motor oil. I may be over thinking this question.

Since this saw will not get over worked while I own it, I think I will try the 90 weight gear oil. Thanks for all the help.
 
 

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