Michigan Administrative Code

R 408.18117 Lubrication and maintenance . Rule 8117. An employee required to work in an explosive atmosphere shall use nonsparking maintenance and cleaning tools to prevent static and mechanical sparking . History: 1979 AC; 1982 AACS .

R 408.18118 Hot surfaces . Rule 8118. Steam pipes, hot water pipes and surfaces of machinery and equipment which would cause burns, if exposed to contact, shall be guarded with a heat-resistive or insulating material or a barrier. If guarding is impractical, the exposed employee …

R 408.18119 Housekeeping . Rule 8119. (1) Flour dust shall be removed not less than monthly from ledges, beams, sills, machinery and equipment in the make up and flour storage areas . (2) Flour and dough shall be removed from the floor or platform of a work station not less than …

R 408.18121 Dry ingredients conveyors generally . Rule 8121. (1) A flour-handling system which has the final delivery end out of sight of the beginning point shall have a control at each point, either of which shall stop the flow of flour . (2) A bag chute with an incline of more…

R 408.18122 Bag-arm conveyors. Rule 8122. A bag-arm conveyor used for transporting bags of flour or sugar with manual takeoff shall be equipped with a device installed so as to stop the conveyor automatically if any bag fails to clear the bar-arms at the discharge end. The convey…

R 408.18123 Storage bins and silos. Rule 8123. (1) A dry ingredient storage bin or silo shall be equipped with a dust- tight cover secured with gaskets and latches or other fasteners. A cover over a point of entry used by an employee shall be interlocked with the loading and unlo…

R 408.18124 Mechanical dumpbins and blenders . Rule 8124. (1) An opening in a mechanical dumpbin or blender shall be guarded by 1 of the following: (a) Parallel bars not more than 3 inches apart on centers . (b) Not less than 11-gauge wire mesh with openings not more than 3 inche…

R 408.18125 Sifters. Rule 8125. (1) An employer shall ensure that a sifter has both of the following: (a) All openings constructed with dust tight closures that are readily accessible for inspection purposes. (b) Refuse tailing receptacles for all types of sifters readily accessi…

R 408.18126 Weighing hoppers and scales . Rule 8126. (1) A dial cover of a scale shall be made of shatter-proof material . (2) A trolley flour scale shall be equipped with a bar-type handle not less than 3/4 inch in diameter for use in moving the scale . (3) Trolley wheels on a w…

R 408.18127 Mixers generally . Rule 8127. (1) Valves and controls used to regulate the coolant to the mixer shall be located so as not to create a hazard for an employee . (2) A pressure regulator shall be installed on all mixer coolant supply lines and shall be set at not more t…

R 408.18128 Horizontal batch mixers . Rule 8128. (1) A horizontal batch mixer shall have control devices which require concurrent use of both hands whenever the mixer bowl is opened more than 6 inches and the agitator is energized. The controls shall be located so that the operat…

R 408.18129 Horizontal tub-type mixers and beaters . Rule 8129. (1) A horizontal tub-type mixer or beater shall be guarded and have the control devices prescribed in R 408.18128(1) or shall have an interlocked cover which will stop the agitator when the cover is opened . (2) A bo…

R 408.18130 Vertical batch mixers. Rule 8130. (1) A bowl locking device on a vertical batch mixer, including an artoflex mixer, shall be designed to require a positive action of the operator to unlock the bowl. (2) If an employee can reach into a vertical mixing bowl, a warning s…

R 408.18131 Spindle mixer . Rule 8131. A vertical spindle mixer shall be equipped with a cover which raises and lowers with the spindle head. The cover or head shall be interlocked so that the spindles cannot start when the cover is raised. A jog switch, so located that the opera…

R 408.18132 Continuous mixers . Rule 8132. (1) A cover on a continuous mixer shall be interlocked to the power source so that the agitator will not turn when the cover is open . (2) A continuous mixer which starts automatically shall have a warning device which shall be activated…

R 408.18133 Dough trough elevator and dump . Rule 8133. An elevator-type dough trough dump shall be provided with an interlocked gate so that the trough cannot be elevated or lowered until the gate is in position to protect an employee, or the trough shall be controlled constantl…

R 408.18134 Dividers and depositors . Rule 8134. (1) A guard at the front of a divider or depositor shall be constructed so that the dough weight can be adjusted without removal of the guard . (2) A guard at the back of a divider or depositor shall enclose all moving parts. The g…

R 408.18136 Manually fed dough brakes . Rule 8136. (1) The in-running roll of a manually fed dough brake shall be enclosed by a guard of not less than 11 gauge metal or material of equivalent strength extending to within 6 inches of the hopper bottom board and at a horizontal dis…

R 408.18138 Roll-type dough sheeters . Rule 8138. (1) A roll-type dough sheeter shall be equipped with a barrier guard so located as to prevent fingers from getting into the nip point or an emergency stop bar shall be provided across the length of the rolls so designed that it wi…

R 408.18139 Bun intermediate proofers . Rule 8139. (1) A star wheel feeder on a bun intermediate proofer shall be enclosed by a hinged guard on all sides except for an opening to receive the dough. The hinged portion shall be designed to open up when struck by a hand . (2) The mo…

R 408.18141 Oven loaders and unloaders . Rule 8141. (1) A hand-fed overhand bar oven loader shall be equipped with 2- hand controls wired to operate concurrently with the buttons guarded by covers, rings or by location to prevent bridging, or the oven loader shall be hung in a ma…

R 408.18142 Pan washers and rack washers . Rule 8142. (1) The safety controls on a pan washer or rack washer shall be inspected and maintained not less than as prescribed in table 1 . (2) A pan washer or rack washer shall have an emergency door latch on the door so an operator ma…

R 408.18143 Pan-cooling towers . Rule 8143. (1) A pan-cooling tower extending more than 1 floor in height shall have a stop switch at each floor. The conveying means shall be restarted only at the location where stopped or at the main source after the stopped switch has been rese…

R 408.18145 Material handling . Rule 8145. (1) A rack used to transport bake goods within a bakery production area shall be equipped with: (a) Handles so located that no part of an employee's hand extends beyond the outer edge of the frame when holding the handles . (b) Castors w…

R 408.18146 Air conditioner . Rule 8146. An air conditioner having access doors for body entry shall be equipped with a means of opening the door from the inside and the outside . History: 1979 AC; 1982 AACS .

R 408.18147 Steam kettles. Rule 8147. (1) A steam kettle shall have a positive locking device capable of holding the kettle at any desired position. (2) A kettle with a steam jacket shall be provided with safety valves as prescribed in the ASME Pressure Vessel Code, Section VIII,…

R 408.18148 Chocolate melting, refining, and mixing kettles . Rule 8148. A chocolate melting, refining and mixing kettle shall be equipped with an electrically interlocked cover to stop agitation when the cover is opened . History: 1979 AC .

R 408.18149 Doughnut machines. Rule 8149. Separate flues shall be provided for doughnut machines as follows: (a) For venting vapors from the frying section. Page 16 Courtesy of Michigan Administrative Rules (b) For venting products of combustion from the combustion chamber used t…

R 408.18151 Slicing machines . Rule 8151. (1) A slicing machine shall be equipped with a device which shall be used to push the last loaf through the knives without contacting the moving knives . (2) A slicing machine with reciprocating knives shall have the knife frames guarded …

R 408.18152 Wafer cutting machine . Rule 8152. A wafer cutting machine shall be guarded to prevent the operator's hand from making contact with the saw or knife . History: 1979 AC .

R 408.18153 Cutting, panning, embossing, peeling, and bar machines . Rule 8153. (1) The manually fed rolls of a cutting, panning, embossing, peeling, and bar machine shall be guarded in front of the rolls by 1 of the following: (a) A mechanical guard across the rolls to prevent e…

R 408.18154 Rotary, pretzel rolling, and pretzel extruding machines . Rule 8154. (1) The forcing rolls within a dough hopper on a rotary, pretzel rolling and pretzel extruding machine shall be guarded as prescribed for feed hoppers in R 408.18160 . (2) A rotary, pretzel rolling a…

R 408.18155 Frying machines and vats; construction . Rule 8155. (1) A frying machine or vat shall be insulated or guarded where burns can result from accidental contact with the outside covering . (2) A frying machine or vat shall be equipped with an automatic temperature control…

R 408.18156 Frying machines and vats; , installation. Rule 8156. (1) A frying machine or vat shall be installed on a noncombustible floor, or a metal pan flanged on 4 sides shall be installed underneath the entire machine. The capacity of the pan shall be not less than the frying…

R 408.18157 Frying machines and vats; maintenance . Rule 8157. Not less than every 90 days the following shall be accomplished: (a) The frying machine or vat shall be washed and boiled out to remove all accumulations of gum . (b) The controls shall be checked for operability . (c…

R 408.18158 Icing and topping machines . Rule 8158. (1) An agitator for an icing and topping machine which is too heavy to lift out shall be hinged to swing up, out of the way, or lifted by mechanical means so the hopper may be removed . (2) A hot water or steam-jacketed hopper f…

R 408.18159 Pulverizers . Rule 8159. (1) A belt drive used in connection with a pulverizer shall be grounded to remove static electricity . (2) Pulverizing equipment shall be dust tight. Electrical equipment and motors located in the room or area shall be dust ignition proof, cla…

R 408.18160 Feed hoppers . Rule 8160. (1) A feed hopper for a grinder, pulverizer or food chopper shall have a guard over the hopper opening. The guard shall be 1 of the following: (a) A grid with opening small enough to keep the fingers from touching the feeding knives or worm .…

R 408.18161 Chocolate and fig breaking machines . Rule 8161. A chocolate and fig breaking machine shall be guarded as prescribed in R 408.18160 . History: 1979 AC .

R 408.18171 Wrapping machines. Rule 8171. (1) An electric sealing heater on a wrapping machine shall have the exposed heated surfaces guarded to prevent burns from accidental contact. (2) Where more than 1 operator is feeding a wrapping machine, each operator shall have an emerge…

R 408.18172 Carton wrapping machines . Rule 8172. (1) An electric sealing heater on a carton wrapping machine shall be as prescribed in R 408.18171(1) . (2) A hot metal glue pot for a carton wrapping machine shall have the heated surfaces insulated or guarded to prevent burns fro…

R 408.18173 Bag loading machines . Rule 8173. (1) A bag magazine feed and the funnel section of a bag loading machine shall be guarded by a movable panel or guard equipped with an interlock which stops the motion of all parts when the panel or guard is in an open position . (2) A…

R 408.18174 Form-fill-seal pouch or bag machine . Rule 8174. (1) A form-fill-seal pouch or bag machine shall have: (a) The exposed hot long seam sealer parts insulated or guarded as prescribed in R 408.18171(1) . (b) The in-running nip point of the power driven friction film feed…

R 408.18175 Tray or carton forming and carton closing machines . Rule 8175. (1) The former and corner lock section of a tray or carton forming and carton closing machine shall be guarded with interlocked hinged or removable covers or enclosures . (2) The heated surfaces of a hot …

R 408.18176 Caddy, cover, and box stitchers . Rule 8176. A caddy, cover, and box stitcher shall be provided a point of operation guard or device to protect the operator's fingers . History: 1979 AC .

R 408.18177 Carton and lining feeding machines . Rule 8177. A carton and lining feeding machine shall be equipped with a hinged hood type guard over the cutters which shall be interlocked with the drive motor . History: 1979 AC .

R 408.18181 Ovens. Rule 8181. (1) With the exception of a range or cabinet type oven without moving parts installed before November 16, 1974, a combustible fueled oven shall be provided devices to protect against all of the following hazards: (a) Ignition failure. (b) Abnormal fu…