Tune-Up Versus Repair Decision Standard

Purpose

A tune-up visit ends with the technician deciding, at the door, which parts get serviced today, which get quoted, and which stop the visit. Left to judgment that decision tracks how the tech feels about selling, and the shop gets both failure modes: the tech who lubricates a frayed cable and leaves, and the tech who condemns a serviceable spring because the door is old.

This SOP gives one rule, applied per component. The event it prevents is a maintenance ticket closed as complete on a door carrying a condemn-level defect, which comes back as a dropped door with the shop's own service sticker on the wall control.

Scope

Covers the disposition decision inside a scheduled maintenance visit on a residential or light-commercial sectional door: what converts a service to a repair on the spot, what gets quoted, and what stops the door being run at all.

Does not cover the maintenance tasks themselves, owned by garagedoor-annual-service, or the balance test procedure, owned by garagedoor-door-balance-test-standard; this SOP consumes its result. Does not cover any repair method - springs, cables, drums, rollers and openers each have their own SOP. Does not cover rolling steel or fire doors.

Roles and responsibilities

The rule: three dispositions, decided per component

The unit of analysis is the COMPONENT, not the door. A door can carry one repair-now part, three quote parts and eleven parts with nothing wrong, and that is a normal result.

• Repair now when the component shows a condemn cue from the steps below, OR when its failure would let the door fall or would remove the operator's ability to hold it. Either half alone triggers it.
• Quote for a return visit when the component is inside its condemn cue but past a wear cue, and its failure would not drop the door.
• Stop and red-tag when an entrapment-protection function fails and cannot be restored today. This one is not a disposition the customer chooses.

Age is a quote trigger, never a condemn cue. A rated cycle count is the supplier's design life for that wire size and diameter, printed on their chart, so a pair past it is worth quoting because failure is now plausible on any cycle - but a spring with no gap, no rust bloom that has cost wire section, on a door that balances, is not condemned by its odometer.

Procedure

1. Take the door's state with the power off. Unplug the operator and keep the plug in your pocket, relying on the cord-and-plug exemption at 29 CFR 1910.147(a)(2)(iii)(A). Acceptance: operator unplugged, door DOWN, opening clear. Wrong looks like inspecting live because "I only need one more cycle." Stop rule: the inspection does not begin on a live operator. Hazard: a live operator puts the door in motion while your hands are in the track, and a remote in a pocket two rooms away is a live control.

2. Run the balance test and gate the visit on it. Release the trolley with the door DOWN, then hand-cycle. Acceptance: moderate one-hand lift, and the door holding within 2 in at mid travel over 10 seconds. Wrong looks like a door that runs to the floor or climbs to the header when you let go. Stop rule: a door failing balance gets no lubrication, no adjustment and no disposition list, because every downstream reading is taken against a counterbalance about to change - it converts to counterbalance work first. Hazard: never pull the release with the door up, since the door drops under its own weight the moment the trolley disengages.

3. Capture usage and convert it to cycles. Ask how many times a day the door opens in a normal week and how long they have had it. One cycle is one open plus one close. Acceptance: a cycles-per-year figure and a lifetime estimate on the ticket, with the spring's wire size and length where the supplier chart is to hand. Wrong looks like recording "old." Stop rule: none, this is an estimate made at a desk. Hazard: none at this step, power off and nothing in motion.

4. Inspect both lift cables, drum to bottom bracket. Run a gloved hand along each cable and look at the drum wraps and the bottom bracket thimble. Condemn cues: any broken strand, flat or crushed section, kink, corrosion that has visibly cost wire section, or a cable riding out of its drum groove. Acceptance: both cables clean full length, even drum wraps, no slack at rest. Stop rule: a single broken strand converts the visit to a cable repair immediately and the door is not cycled under power again, because a cable that has lost strands fails on the cycle you were about to run. Hazard: gloves on, since a broken strand goes into a hand easily and comes out badly, and keep your face out of the drum area.

5. Inspect the counterbalance and read age against the cycle estimate. Look for a gap in a torsion spring, coils gone loose against each other, rust bloom rather than surface film, and on extension springs an intact containment cable through each spring. Acceptance: no gap, no lost section, containment cable captured at both ends. Stop rule: a gap is a broken spring and the visit converts under the spring SOP; a missing containment cable is repair-now whatever the spring looks like, because it is the only thing that catches a spring when it lets go. Hazard: treat every spring as fully wound, keep hands out from between coils and off the cones, and never loosen a set screw to look at something.

6. Work the running gear: rollers, hinges, bearings, track, structural fasteners. With the door down and the release still pulled, spin each roller by hand, check each hinge knuckle, and put a hand on each end bearing while a helper hand-cycles the door. Acceptance: every roller turns freely, no hinge cracked, no fastener hole gone oval, shaft turning without grinding or wander. Stop rule: a lag into the header or a bracket fastener that spins without drawing is repair-now, because those fasteners hold the counterbalance over the opening. Hazard: fingers on the section rail, never in a section joint or between roller and track, since a hand-cycled door closes those joints on whatever is in them.

7. Restore power beside the head and verify entrapment protection last. Re-latch the trolley, confirm the latch by hand pull, then plug in standing to the side of the head rather than under it. Run the contact reversal and three photo-eye tests per garagedoor-limit-and-force-verification-after-a-repair. Acceptance: contact, reversal and full return to open, plus immediate reversal on all three beam breaks. Both are the entrapment protection the head is listed to under UL 325 and required by 16 CFR Part 1211, which is why the red-tag is not a disposition the customer chooses. Stop rule: either test failing and not fixable today means stop and red-tag - trolley released, door down on manual, operator unplugged, wall control tagged, customer told plainly not to run it. Hazard: this step deliberately drives the door onto an obstruction, so the opening stays empty and nobody's hand, foot or tool is ever the test object.

8. Sort the findings and present each with its cue attached. Read the list back component by component, naming the observation before the recommendation. Acceptance: every ticket line carries a cue, a disposition, and a decision recorded as accepted, declined or deferred. Wrong looks like "the door is due for a lot of work." Stop rule: a declined repair-now item is never quietly downgraded to a quote - it is recorded as declined, and if it was a condemn cue the door goes on manual and the manager makes the call. Hazard: none at this step, a conversation held away from the opening.

The record this produces

• Fields: door size, construction and approximate age; operator make, model and serial; balance drift in inches over 10 seconds; openings per day, derived cycles per year, lifetime estimate; per component, the cue in the tech's own words plus its disposition; contact reversal result with the object used; photo-eye result as three outcomes; the customer's decision per line.
• Where it lands: the door's equipment record, with photographs of any condemn cue - a broken strand, a spring gap, an oval fastener hole - attached to the line that names it.
• Who reads it later: the tech quoting the deferred work six months on, who needs the cue rather than the recommendation; the manager on a callback; and the shop after an incident, where a photographed broken strand beside a declined line is a documented finding rather than a memory.

Worked pass: 16 ft by 7 ft insulated double, 12 years old, one step fails

Step 1: operator unplugged, plug pocketed, vehicle out, opening clear. Step 2: released with the door down; one-hand lift moderate, held at mid travel with about 1 in of drift over 10 seconds, inside the 2 in acceptance, so the visit continues.

Step 3: homeowner reports about 6 openings a day and has had the door since it went in 12 years ago. 6 cycles a day times 365 is 2,190 cycles a year; 2,190 times 12 years is 26,280 cycles. The supplier's chart rates that wire and diameter pair at 10,000 cycles nominal, so 26,280 divided by 10,000 puts the pair at roughly 2.6 times its nominal rated life.

Step 4 failed and took its stop rule. The right-hand lift cable showed two broken strands about 4 in above the bottom bracket thimble, with a rust stain running from the break. That is a condemn cue, so no further powered cycling, and the visit converted to cable replacement under garagedoor-cable-off-the-drum-correction-standard before the inspection resumed. Both cables went as a pair, since a new cable against a 12-year-old mate leaves the same failure waiting on the other side.

Step 5: no gap in either spring, coils tight against each other, surface film only with no bloom and no lost section. Under the rule as written the springs carry a wear cue and no condemn cue, so they are QUOTED, not repaired today - the 2.6 multiple is age, and age does not condemn. That is the contrast the visit teaches: the number the customer expected to matter did not convert the visit, and one broken strand did.

Step 6: two nylon rollers on the second section skidded rather than rolled and were replaced as part of the service; both end bearings turned quietly; one lag at the left header bracket turned about a quarter turn without drawing, and was moved to sound framing and re-drawn as repair-now because it carries the counterbalance.

Step 7: trolley re-latched and hand-checked, power restored from beside the head. Contact reversal: contact, reversal, full return to open. Photo eyes: three closes, beam broken from outside the opening at three points in travel, immediate reversal each time. No red-tag. Step 8: ticket closed with cables and rollers as repair-now, the header lag corrected, and the spring pair quoted with the cycle estimate attached, recorded as accepted on the repairs and deferred on the springs with a callback date.

References

• 29 CFR 1910.147(a)(2)(iii)(A), the cord-and-plug exemption relied on in step 1.
• 16 CFR Part 1211 and the UL 325 listing it incorporates, exercised at step 7 and binding manufacturers of operators made on or after January 1, 1993; the reversal timing and permitted test object for a given head sit in the manual shipped with that unit.
• DASMA technical data sheets on residential door and counterbalance maintenance, plus the spring supplier's cycle-life chart for the wire size and diameter in front of you, which is where a rated cycle count comes from.
• See related: garagedoor-annual-service, garagedoor-door-balance-test-standard, garagedoor-cable-off-the-drum-correction-standard, garagedoor-limit-and-force-verification-after-a-repair, garagedoor-parts-identification-and-ordering-on-a-call.