Sand Removal and Track Cleaning

Where the Sand Actually Collects

A garage door has four places grit likes, and only one of them is obvious.

The bottom track, the vertical section from the floor up to about waist height, catches everything that blows in under a closed door and everything the tyres carry onto the driveway. This is the drift people find when they finally look.

The bottom seal channel, the aluminium retainer along the base of the lowest panel, is the one that causes the phone calls. It is a U-shaped extrusion holding a rubber astragal, and it is a superb sand trap because the door presses it down onto the floor twice a day and packs whatever is in it.

The roller stems and races collect the fine fraction. On a stem that is dry, that grit acts as a lapping compound between the stem and the hinge sleeve. On an open ball bearing it gets inside the race and stays there.

The end bearing plates and centre bearing on the torsion shaft are last, and slowest, but a bearing that has taken in grit is the one that squeals at six in the morning.

What We Do on a Clean

We work top down so nothing falls into what we have already done.

• Both vertical tracks and both horizontal tracks vacuumed along their length, then wiped out with a dry rag. No solvent, no oil.
• The bottom seal retainer cleared. Often the astragal has to come out to get at the packed layer behind it, and if the rubber has hardened we say so rather than putting a dead seal back in.
• Rollers checked one at a time by hand for free rotation and for play in the race.
• Hinges, bearings and the torsion spring lubricated properly, with a light lithium or silicone product, wiped so nothing stays wet enough to attract grit.
• The threshold and the first foot of driveway swept back, because the next cycle will otherwise drag the same sand straight back in.
• A balance test before we leave. Door halfway, hands off, and it should hold.

Why the Track Never Gets Oiled

This is the part homeowners find counterintuitive, so it is worth being plain about. The track is not a bearing surface. It is a guide rail, and the roller wheel rolls on it. There is nothing in that relationship that needs oil.

What oil does in a beach town is capture sand and hold it against the steel. The door goes quiet for a few days because the paste damps the noise, and underneath it the wear rate goes up sharply. We have pulled track sections in this city with a polished groove worn into them, and every one of them had a black greasy line down it.

Clean and dry. That is the whole specification for track.

Doing It Yourself

Most people can do the routine clean, and we would rather they did.

A shop vacuum with a crevice nozzle, a rag, and about ten minutes. Vacuum the vertical track from the floor up, wipe it, clear the bottom seal channel with the door open so the retainer is off the floor, and sweep the threshold. Twice a year within a few blocks of the sand, once a year further inland, and again after any hard onshore blow.

Call us when the cleaning stops fixing it. That means the wear has moved into the hardware, and hardware is the other half of the job.

Call (657) 754-0029.