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BH Garage Door

Oak Lawn, IL · Same-day service

Lubrication Depends on Which Spring System You Have

Oak Lawn runs both spring systems side by side, and they do not take lubricant in the same places. That is the part most advice skips. A checklist written for a torsion door sends you hunting for bearings an extension system does not have, and says nothing about the pulleys doing all the work on it.

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So the first thing to establish is which one is above your head.

Torsion doors: bearings first, coils lightly

A torsion system has three or more bearings on the shaft, one at each end plate and one at the centre. Those are the parts that whine when dry, and they want a light oil that will creep into the race rather than a heavy grease sitting on the outside of it.

The spring coils themselves take a thin film, wiped on rather than flooded. It is there to stop coil-on-coil friction and keep moisture off the steel, not to drip onto the car below. Then the hinge knuckles, the roller stems where they enter the hinge, and the lock bar if the door still has one.

Extension doors: it is all in the pulleys

An extension system has no shaft and no bearings across the wall. What it has is four pulleys, each with a sheave turning on a pin, and those are the points that dry out and start squealing. Oil goes on the pin, not in the groove where the cable runs.

The springs themselves need very little. What they need is to stay dry, which in an unheated garage is mostly about keeping road salt and standing water away from the back of the slab rather than about lubricant at all.

The track is not a lubrication point, and cold is why products fail

Grease in the track is the most common mistake we find. Nylon rollers ride on the track and do not need it, and anything applied there collects the grit and salt that comes off the car. That paste wears the wheels far faster than a dry track ever would. Tracks get wiped clean instead.

The other thing to get right is the product. General-purpose penetrating spray is a solvent and a water displacer. It cleans, then leaves nothing behind, so the door goes quiet for a fortnight and comes back loud. A white lithium or a silicone lubricant sold for garage doors stays put. In an unheated detached garage in January the difference is obvious: thickened old grease is what makes a door that runs fine in July drag itself open in winter.

Questions

Oak Lawn questions about this job

It only squeaks in winter. Why is that?

Old lubricant thickens as the temperature drops, so the door is fighting its own grease. Rubber weather seal stiffens too, and can freeze to a wet slab. A tune-up that cleans the old product off rather than adding to it usually settles both.

Can I do this myself, and what should I buy?

Yes, and it is worth doing between visits. Buy a lubricant sold for garage doors, apply it sparingly at hinges, roller stems and bearings, and keep it off the track and off the rubber. Never spray the photo eye lenses.

The door is quiet already. Does it still need a tune-up?

Quiet is not the same as sound. A tune-up also covers fasteners, hardware wear and the safety tests, and a door can run silently right up until a cable or a hinge lets go. Quiet only means the friction is not audible yet.

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