Picard RE-8-24 Revolving Tray Oven Repair in Las Vegas: Uneven Heat, Squeaking and a Stalled Drum
A Picard RE-8-24 revolving tray oven in a Las Vegas bakery came with three complaints: unstable temperature (overheating and underheating), squeaking while rotating, and a drum that sometimes stopped turning. Flour in the air was the common cause. It had clogged the combustion air intake manifold, starving the gas-air mixture, and it had worn the main shaft bearings and dried out the drive chain until the drive motor overheated and stopped. We cleaned the air intake, replaced the main shaft bearings, de-rusted and lubricated the chain with food-grade grease, completed a full service and confirmed normal motor current and steady temperature under load.
| Equipment | Picard RE-8-24 revolving tray (reel) oven, gas |
|---|---|
| Location | Las Vegas, NV |
| Symptoms | Temperature swings (over- and underheating), squeaking during rotation, drum stopping |
| Root causes | Flour-clogged combustion air intake; worn main shaft bearings; dry, rusty drive chain; drive motor overheating under the extra load |
| Repair | Air intake manifold cleaned; main shaft bearings replaced; chain de-rusted and lubricated with NSF H1 food-grade grease; full preventive service |
| Verification | Motor amp draw measured under load (about 3.3 A); temperature stable through bakes |
| Result | Quiet, steady rotation and even baking |
Three problems at once
A Picard RE-8-24 revolving tray oven bakes buns, pastries and sweets for a busy Las Vegas bakery: trays hang from a revolving reel so every product sees the same heat. The owner called with three problems at once. The temperature had become unstable — sometimes too hot, sometimes too cold. The oven squeaked as the reel turned. And now and then the reel stopped turning completely, in the middle of a bake.
The common cause: flour in the air
This oven works in a kitchen where everyone handles flour and dough all day. Fine flour dust hangs in the air and gets drawn into every opening of the oven — including the parts it depends on most.
Uneven heat and overheating: a starved air intake
The burner draws combustion air through an air intake manifold and mixes it with gas. That manifold was packed with flour. With too little air the burner was starved, the gas-air mixture ran rich and heat output became unpredictable — leaving the control alternating between underheating and overshooting into overheating.
Squeaking: worn bearings and a dry chain
The squeak came from the main shaft bearings that carry the whole revolving reel and its trays, and from the drive chain. The bearings were worn and rusting, and the chain had dried out and rusted under a coat of flour.
A stalled reel: an overheating motor
Dragging bearings and a stiff chain made the drive motor work far harder than designed. It overheated and its thermal protection shut it off — the reel stopped mid-bake, then restarted once the motor cooled.
The repair and full service
- Air intake: removed and thoroughly cleaned the air intake manifold and the combustion air path.
- Bearings: replaced the main shaft bearings that support the revolving reel.
- Chain: removed the drive chain, cleaned off rust and flour, lubricated it with NSF H1 food-grade (FDA-compliant) grease, reinstalled and set the tension.
- Drive: inspected the sprockets, belt and pulleys, and checked the drive motor and its mounting.
- Burner and safety checks: inspected the burner and ignition, verified the flame, checked the safety controls, the temperature control and the door seals.
- Cleaning: cleaned flour buildup from the base, the drive compartment and the controls area.
Testing under load
After the repair we ran the oven loaded and measured the drive motor's current draw under load — about 3.3 amps, normal for the motor, confirming it was no longer straining against dragging bearings and a stiff chain. The reel turned smoothly and quietly, and the oven held a steady temperature through complete bake cycles. The customer was happy with the result.
Keeping a revolving oven healthy in a bakery
- Clean the combustion air intake and burner area regularly; flour builds up faster than you think.
- Lubricate the drive chain only with food-grade (NSF H1) lubricant, and keep it clean.
- Listen: a new squeak, groan or jerky rotation means bearings or chain need attention before the motor overheats.
- Schedule a full preventive service at least once a year — twice in a high-volume bakery.
We repair revolving, rack, deck and convection bakery ovens and other restaurant cooking equipment across the Las Vegas valley. A standard commercial service call is $100.
Frequently asked questions
Why is my revolving oven overheating and underheating?
A common cause in bakeries is a flour-clogged combustion air intake, which starves the burner and makes heat output unpredictable. Burner, ignition and control faults are other possibilities.
Why does my revolving tray oven squeak?
Usually worn main shaft bearings or a dry drive chain. On this Picard oven it was both.
Why did the oven reel stop turning?
The drive motor overheated from the extra load of worn bearings and a stiff chain and shut off on its thermal protection.
What lubricant should be used on a bakery oven chain?
A food-grade lubricant rated NSF H1, used sparingly and only where the manufacturer specifies.
Need this repair?
Bakery oven heating unevenly or squeaking? Call (702) 744-2944 — standard commercial call $100.
