Energy sources on a typical dough sheeter
Every machine is different: check your model's nameplate, wiring and the manufacturer's manual. This is where most dough sheeters get their energy and how it is usually isolated.
| Energy | Typical magnitude | Isolating device | How to control it |
|---|---|---|---|
| Electrical | 208–240 V 1- or 3-phase, or 120/240 V cord and plug | Machine disconnect or wall disconnect (or plug) | Switch OFF and lock and tag the disconnect, or unplug and fit a plug lockout cover. |
| Stored mechanical (motion, springs, tension) | Rollers and belts coasting after stop | None — wait for complete stop | Wait until rollers and belts have completely stopped. |
| Gravity (raised or suspended parts) | Folding conveyor tables in the raised position | Table latch or support | Lower the tables, or secure them with their latch before working under them. |
Shutting it down
- Stop the belts with the normal STOP control or foot pedal.
- Set the direction lever to neutral and the roller gap control to its rest position.
Releasing stored energy
- Confirm rollers and belts are stationary.
- Lower or latch the folding conveyor tables.
Verifying isolation
- Operate the direction lever and foot pedal: rollers and belts must not move. Return controls to neutral/OFF.
Things people miss
- The roller guard and its interlock do not replace lockout during cleaning or clearing a jam.
Turn this into your written procedure
Add your company, the machine ID, the voltage and where each disconnect and valve is. You get a machine-specific procedure that follows the structure of 29 CFR 1910.147(c)(4), with an approval block and printable DANGER tags.
Start with the dough sheeter templateQuestions
Does a dough sheeter need its own lockout procedure?
OSHA 29 CFR 1910.147(c)(4) requires documented procedures for the control of hazardous energy. A procedure is not required only when all eight conditions of the exception in (c)(4)(i) are met, for example a single energy source that can be readily identified and isolated. Most machines with more than one energy source need a written, machine-specific procedure.
Is unplugging enough?
For cord-and-plug equipment, the lockout standard does not apply when the equipment is unplugged and the plug is under the exclusive control of the employee doing the work (1910.147(a)(2)(iii)(A)). If the plug can be out of sight or reach, use a plug lockout cover with a personal lock.
Is the interlocked guard enough?
No. Guard interlocks and emergency stops are not energy isolating devices and do not replace lockout during servicing, cleaning or clearing jams.
General information, not legal advice. Verify every energy source on the actual machine and have the procedure approved by a qualified person.