DEPARTMENT OF LICENSING AND REGULATORY AFFAIRS  
DIRECTOR'S OFFICE  
GENERAL INDUSTRY SAFETY STANDARDS  
(By authority conferred on the director of the department of licensing and regulatory  
affairs by sections 16 and 21 of Act No. 154 of 1974 PA 154, and Executive  
Reorganization Order Nos. 1996-2, 2003-1, 2008-4, and 2011-4, MCL 445.2001,  
445.2011, 445.2025, and 445.2030)  
PART 72. AUTOMOTIVE SERVICE OPERATIONS  
R 408.17201 Scope.  
Rule 7201. This part sets forth rules for the safe maintenance and operation of  
equipment in, around, and about places of employment where vehicles or tire and  
wheel assemblies are serviced, repaired, and salvaged. Manufacturing, research,  
and development facilities are excluded.  
History: 1979 AC; 1990 AACS.  
R 408.17204 Definitions; A to E.  
Rule 7204. (1) "Automotive lift" means a vehicle lifting device, the purpose of  
which is to raise an entire vehicle to provide accessibility for convenient under  
chassis service.  
(2) "Class I flammable liquid" means those having a flash point below 100  
degrees Fahrenheit. Representative examples of class I liquid are:  
ether, gasoline, lacquer thinner, acetone, and methyl acetate.  
(3) "Combustible" means to be readily ignitable and easily burnable.  
(4) "Extractor" means a machine, except a vacuum cleaner, used to remove  
moisture from fabrics.  
History: 1979 AC.  
Editor's Note: An obvious error in R 408.17204 was corrected at the request of the promulgating  
agency, pursuant to Section 56 of 1969 PA 306, as amended by 2000 PA 262, MCL 24.256. The rule  
containing the error was published in Administrative Code 1979. The memorandum requesting the  
correction was published in Michigan Register, 2016 MR 3.  
R 408.17205 Definitions; F to L.  
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Rule 7205. (1) "Flammable liquid" means a liquid having a flash point less than  
100 degrees Fahrenheit and having a vapor pressure of not more than 40 pounds per  
square inch (absolute) at 100 degrees Fahrenheit.  
(2) "Jack" means a portable mechanical or hydraulic device for lifting or lowering a  
load by application of a force.  
(3) "Lockout" means to lock by key or padlock.  
History: 1979 AC.  
R 408.17206 Definitions; P to S.  
Rule 7206. (1) "Pinch point" means a point at which it is possible to be caught  
between the moving parts of a machine, between moving and stationary parts of a  
machine, or between a moving object and a stationary object.  
(2) "Restraining device" means a mechanical apparatus, such as a safety cage,  
rack, or safety bar arrangement or other machinery or equipment, that will constrain  
all rim wheel components following their release during an explosive separation of  
the wheel components.  
(3) "Rim manual" means a publication containing  
instructions  
from  
the  
manufacturer or other qualified organization for the correct mounting and demounting,  
maintenance, and safety precautions peculiar to the type of wheel being serviced.  
(4) "Safeguard" means a device or part of a product designed for the protection  
of equipment or an employee.  
(5) "Safety factor" means the ratio of the breaking strength of a piece of material or  
object to the maximum designed load or stress applied when in use.  
(6) "Service" means to adjust, install, repair, replace, wash, wax, change or  
exchange, polish, sand, grind, refinish, paint, or coat.  
(7) "Single-piece rim wheel," for purposes of this part, means a vehicle wheel or  
rim which consists of 1 part, which is designed to hold the tire on the rim when the tire is  
inflated, and which is intended for use with tires designed for an inflation pressure of  
more than 44 psig.  
History: 1979 AC; 1990 AACS.  
R 408.17207 Definitions; V to Y.  
Rule 7207. (1) "Vehicle" means a powered conveyance operating on 2 or more  
wheels, including, but not limited to, an automobile, truck or trailer.  
(2) "Wet operations" means those operations which involve the drainage, splash  
or running of liquids such as, but not limited to those found in car washing or dipping  
of radiators in solutions.  
(3) "Yield point" means the point where material begins to take a permanent  
deformation.  
History: 1979 AC.  
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R 408.17211 Employer responsibility.  
Rule 7211. An employer shall do all of the following:  
(a) Provide training to an employee as to the hazards, safe operations of the assigned  
job, and applicable rules of this part.  
(b) Assure that job required tools, equipment, and the work area are maintained in a  
manner free of recognized hazards which would cause an injury.  
(c) Prohibit smoking, flames and sparks within 15 feet of where Class I flammable  
liquids are dispensed or used, unless separated by an approved wall. “No Smoking” signs  
shall be posted in these restricted areas.  
(d) Not circumvent, bypass, or make inoperative any safeguard unless required  
during servicing. The safeguard shall be replaced before resuming operation of the  
equipment.  
History: 1979 AC; 2013 AACS.  
R 408.17212 Employee responsibility.  
Rule 7212. An employee shall do all of the following:  
(a) Use tools and equipment only when authorized and trained in their use.  
(b) Report employers’ defective tools and equipment and hazardous conditions,  
when detected, to the supervisor.  
(c) Maintain all personal tools, equipment, and work area in a manner to prevent a  
hazardous condition.  
(d) Not use any device emitting air or other material in a manner which may inject a  
foreign material into a human body part.  
(e) Use tools and equipment within their rated capacity.  
History: 1979 AC; 2013 AACS.  
R 408.17213 Personal protective equipment.  
Rule 7213.  
(1) An employer shall provide and an employee shall wear eye  
protection in accordance with and as prescribed in the General Industry Safety Standards  
Part 33. Personal Protective Equipment, R 408.13301 to R 408.13398 of the Michigan  
Administrative Code.  
(2) Other personal protective equipment including, but not limited to, rubber gloves,  
aprons, boots, welding helmets and respirators shall be provided by the employer and  
worn by the employee to protect against the hazards of wet operations, welding and  
cutting, radiator cleaning, battery charging, and spray painting.  
(3) Where corrosive liquids or other liquid materials that would be harmful to an  
employee are normally used and where an employee is exposed to splash of the materials,  
a readily accessible means of flushing with water shall be provided.  
(4) Cloth shoes, open sandals, and exposed rings and necklaces shall not be worn in  
the work area. A ring may be worn if covered by gloves or tape.  
History: 1979 AC; 2013 AACS.  
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Editor's Note: An obvious error in R 408.17213 was corrected at the request of the promulgating  
agency, pursuant to Section 56 of 1969 PA 306, as amended by 2000 PA 262, MCL 24.256. The rule  
containing the error was published in Administrative Code 2013. The memorandum requesting the  
correction was published in Michigan Register, 2016 MR 3.  
R 408.17221 Illumination.  
Rule 7221. When hazardous work is performed where a hazard could be  
lessened by adequate lighting, a minimum of 25 footcandles intensity shall be provided.  
History: 1979 AC.  
R 408.17222 Machinery and equipment installation.  
Rule 7222. (1) Electrically powered machinery or equipment, other than double  
insulated equipment, shall be grounded.  
(2) Nonportable machinery or equipment shall be secured to the floor, platform,  
table, or bench to prevent displacement or tipping.  
(3) Machinery or equipment shall be equipped with a disconnect switch which shall  
be locked in the off position, unless the machinery or equipment is equipped with a plug-  
in cord which shall be disconnected and tagged, when the machinery or equipment is  
repaired or serviced if unexpected motion would cause injury.  
(4) Machinery and equipment equipped with a foot control shall be provided with a  
cover or guard to prevent unintentional operation of the machinery or equipment where  
such operation would cause injury. The cover or guard shall be capable of withstanding a  
static load of 200 pounds without permanent deformation. The edges of the cover of the  
guard shall be rolled, broad, or covered to prevent injury or discomfort due to contact by  
the operator’s foot or leg.  
History: 1979 AC; 2013 AACS.  
R 408.17223 Housekeeping.  
Rule 7223. (1) Until disposal is made, wiping cloths, when soiled from oil,  
grease, paints, or solvents, shall be placed in their own covered metal container,  
which shall be labeled or identified as combustible material.  
(2) Rubbish shall be placed in containers. The container for combustible rubbish  
shall be of metal.  
(3) Floors shall be maintained free of water, oil, grease, and paint or other  
accumulations which would cause a slipping, tripping, or falling hazard.  
(4) After a vehicle is serviced, tools, loose parts, materials and general debris  
shall be cleaned up and placed in their designated places.  
History: 1979 AC.  
R 408.17224 Ventilation and air receivers.  
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Rule 7224. (1) Ventilation shall be provided and used to exhaust toxic vapors or  
fumes if such vapors or fumes exceed the maximum allowable limits prescribed by  
a department of public health rule.  
(2) The blades of a fan less than 7 feet from a floor, platform or ground shall  
be guarded on all sides. Openings in a guard shall be not more than 1 inch and the  
distance shall be not less than the values in table 1.  
(3) A fan shall not be located where fumes of flammable liquids can be induced  
into an area where sparks or flame may be present.  
(4) An air receiver shall be equipped with an operable relief valve set at not more  
than the working load limit of the receiver.  
Table 1  
Smallest dimension  
in guard (in):  
Minimum distance from guard to  
blade  
Greater than 0 up to 1/4 inclusive.  
Greater than 1/4 up to 3/8 inclusive.  
Greater than 3/8 up to 1/2 inclusive.  
Greater than 1/2 up to 3/4 inclusive.  
Greater than 3/4 up to 1 inclusive  
1/2 inch  
1 1/2 inches  
2 1/2 inches  
4 inches  
6 times the smallest dimension  
History: 1979 AC.  
R 408.17225 Flammables, painting and coating  
Rule 7225. (1) A Class I flammable solvent stored inside a building shall be in an  
approved safety can with an automatic closing cap and flame arrestor or original  
unopened container having a capacity of not more than 5 gallons. Quantities in excess of  
5 gallons shall be stored as prescribed by flammable liquid regulations of the fire marshal  
promulgated under 1941 PA 207.  
(2) When pouring a flammable solvent from 1 container to another, continuous  
contact between the containers shall be maintained or a bonding or grounding strap shall  
connect the containers.  
(3) A Class I flammable solvent shall not be used for cleaning tools, parts, floors, or  
booths.  
(4) When a flammable liquid is removed from a vehicle tank, an approved pumping  
device equipped with a ground strap shall be used.  
History: 1979 AC; 2013 AACS.  
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R 408.17226 Belt servicing.  
Rule 7226. An employee adjusting or testing the tension of a belt or installing or  
removing a belt on a vehicle, shall do so when the motor is off and without turning the  
engine over.  
History: 1979 AC.  
R 408.17227 Rescinded.  
History: 1979 AC; 2013 AACS.  
SPECIFICS  
R 408.17231 Rescinded.  
History: 1954 ACS 82, Eff. Dec. 31, 1974; rescinded 1954 ACS 93, Eff.  
Oct. 18, 1977.  
R 408.17232 Cranes and winches, hoists, and chain falls.  
Rule 7232. (1) A crane, hoist and chain fall or winch, fixed or portable, shall  
have affixed to it a permanent tag showing the rated capacity and name of  
manufacturer and, if available, the model and serial numbers.  
(2) A crane, hoist and chain fall or winch shall not be used to lift more than its  
rated capacity.  
(3) Wire rope or cable used on a crane, hoist or winch shall be inspected  
monthly, and shall be replaced if:  
(a) In any length of 8 diameters, the total number of visible broken wires  
exceeds 10% of the total number of wires.  
(b) The wire rope or cable has been kinked, crushed or bird caged or sustained  
other damage which distorts the wire rope structure.  
(c) The wire rope or cable shows heat or corrosive damage.  
History: 1979 AC.  
R 408.17233 Wreckers.  
Rule 7233. (1) A wrecker cable and boom shall have a designed safety factor of  
not less than 5.  
(2) Wire rope or cable used on a wrecker shall be inspected as prescribed in  
R 408.17232(3).  
(3) A wrecker pulling or lifting a vehicle shall be used within its rated capacity.  
(4) When pulling a vehicle with a wrecker cable, the employee shall stand aside  
from the line of pull.  
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(5) When towing a boom supported vehicle, safety chains shall be connected  
between the wrecker and the towed vehicle.  
(6) A wrecker boom shall be equipped with a permanent tag showing rated  
capacity and name of manufacturer and, if available, the model and serial numbers.  
Where this information is not available, an outside source, knowledgeable in  
wrecker booms, shall be used to determine the rated capacity which shall be  
permanently labeled on the wrecker boom. The boom shall be installed on the vehicle  
in a manner capable of sustaining the imposed load.  
(7) The winch controls shall be located in a manner to prevent accidental  
contact with cable and winch pinch points or the pinch point shall be guarded.  
History: 1979 AC.  
R 408.17234 Jacking and blocking.  
Rule 7234. (1) A vehicle being serviced, adjusted or repaired while the motor is  
running shall have 2 wheels chocked from front and rear or parking brake set or  
other vehicle restraint controls provided.  
(2) An employee shall not place his body under a vehicle supported only by a jack,  
overhead hoist or chain fall. Safety stands having a yield point of not less than 1 1/2  
times its rated capacity shall be used to support the vehicle.  
(3) A jack shall not be used to lift more than its rated capacity.  
History: 1979 AC.  
R 408.17235 Rim wheel servicing.  
Rule 7235. (1) An employer shall ensure that each employee who is engaged  
in servicing multi-piece and single-piece rim wheels demonstrates and maintains his or  
her ability to service the rims safely and in accordance with these rules.  
(2) All wheel components shall be inspected before assembly. Rims, rim bases,  
side rings, or lock rings that are bent out of shape, pitted from corrosion, broken, or  
cracked shall not be used or welded, brazed, or otherwise heated in an attempt to  
repair them. The defective components shall be rendered unusable for tire mounting.  
(3) Tires shall be completely deflated by removing the components.  
(4) A restraining device, as defined in R 408.17206(2), shall be provided by  
the employer and maintained in a safe condition and shall be in compliance with all of  
the following requirements:  
(a) Each restraining device or barrier shall have the capacity to withstand the  
maximum force that would be transferred to it during  
a
rim wheel separation that  
occurs at 150% of the maximum tire specification pressure for the type of rim wheel  
being serviced.  
(b) Restraining devices and barriers shall be capable of preventing the rim wheel  
components from being thrown outside or beyond the device or barrier for any rim  
wheel that is positioned within or behind the device.  
(c) Restraining devices and barriers shall be visually inspected before each day's  
use and after any separation of the rim wheel components or sudden release of  
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contained air. A restraining device or barrier that exhibits evidence of damage, such  
as any of the following defects, shall be immediately removed from service:  
(i) Cracks at welds.  
(ii) Cracked or broken components.  
(iii) Bent or sprung components caused by mishandling, abuse, tire explosion,  
or rim wheel separations.  
(iv) Pitting of components due to corrosion.  
(v) Other structural damage that would decrease the effectiveness of the  
restraining device or barrier.  
(d) A restraining device or barrier that is removed from service shall not be  
returned to service until it is repaired and reinspected. A restraining device or  
barrier that requires structural repair, such as component replacement or rewelding,  
shall not be returned to service until it is certified by either the manufacturer or  
a
registered professional engineer that the device or barrier meets the strength  
requirements specified in subdivision (a) of this subrule.  
(5) A clip-on chuck with a sufficient length of hose to permit the employee to  
stand clear of the potential trajectory (see figure 1) of the wheel components and an in-  
line valve with a gauge or a pressure regulator preset to the desired pressure shall be  
furnished by the employer and used to inflate tires.  
(6) Industry-accepted tire lubricant shall be applied to the bead and the rim  
mating surfaces during assembly of the tire and wheel.  
(7) When a tire is in a restraining device, an employee shall not rest or lean any  
part of his or her body or equipment on or against the device.  
(8) An attempt shall not be made to correct the seating  
of  
the  
wheel  
components, rim, rim base, or side and lock rings by hammering, striking, or forcing the  
components while the tire is pressurized.  
(9) Heat shall not be applied to an inflated wheel tire assembly.  
(10) Figure 1 reads as follows:  
Figure for 408.17235  
History: 1979 AC; 1990 AACS; 1993 AACS.  
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R 408.17236 Multi-piece rim wheels.  
Rule 7236. (1) Wheel components shall not be interchanged except as permitted  
pursuant to the publication entitled “Multi-piece Rim/Wheel Matching Chart” or any  
other publication containing, at a minimum, the same instructions, safety precautions, and  
information as the charts identified in subrule (2) of this rule.  
(2) The publications entitled “Multi-piece Rim/Wheel Matching Chart” and “Safety  
Precautions for Mounting and Demounting Tube/Type Truck Tires,” as revised January  
1978, which are hereby incorporated in these rules by reference, shall be accessible and  
available in the service area. These publications are available from the United States  
Department of Labor, Occupational Safety and Health Administration, 315 West Allegan,  
room 315, Lansing, Michigan, 48917, or via the internet at website www.osha.gov, at no  
charge as of the time of adoption of these rules. These publications are also available for  
inspection at the Department of Licensing and Regulatory Affairs, MIOSHA Standards  
Section, 7150 Harris Drive, P.O. Box 30643, Lansing, Michigan, 48909-8143.  
(3) Mating surfaces of the rim gutter ring shall be free of any dirt, surface rust, scale,  
or rubber buildup before mounting and inflation.  
(4) A tire shall be completely deflated by removal of the valve core before a wheel is  
removed from the axle in either of the following situations:  
(a) When the tire has been driven underinflated at 80% or less of its recommended  
pressure.  
(b) When there is obvious or suspected damage to the tire or wheel components.  
(5) Tires shall be inflated only when constrained by a restraining device, except  
when the wheel assembly is on a vehicle. Tires may be inflated without being constrained  
by a restraining device if remote control inflation equipment is used and no employees  
remain in the trajectory path during inflation in either of the following situations:  
(a) Tires are underinflated, but have more than 80% of the recommended pressure.  
(b) Tires are known not to have been run underinflated.  
(6) When a tire is being partially inflated without a restraining device for the  
purpose of seating the lock ring or to round out the tube, such inflation shall not exceed 3  
psig (0.21 Kg/cm).  
(7) After tire inflation, the tire rim and rings shall be inspected while still  
constrained in the restraining device to assure they are properly seated and locked.  
History: 1990 AACS; 2013 AACS.  
R 408.17237 Single-piece rim wheels.  
Rule 7237. (1) Subrules (2) to (8) of this rule apply to the servicing of single-piece  
wheel rims used on vehicles such as trucks, trailers, buses, and off-road machines  
which have a tire inflation pressure that is 45 psig or greater. Subrules (2) to (8) of this  
rule do not apply to single-piece rim wheels used on automobiles and light-duty  
trucks or vans utilizing automobile tires.  
(2) A rim manual, as prescribed in R 408.17206(2), which contains  
instructions for the types of wheels serviced shall be available in the service area.  
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(3) The size and type of both the tire and the wheel shall be checked for  
compatibility before assembly of the rim and wheel.  
(4) Mounting and demounting of the tire shall be done only from the narrow  
ledge side of the wheel. Care shall be taken to avoid damaging the tire beads while  
mounting tires on wheels.  
(5) If a bead expander is used to seat the beads, it shall be removed before the  
tire is inflated to more than 10 psig (.7031 Kg/cm).  
(6) To seat the bead while the rim wheel is restrained on  
a
tire changing  
machine, the tire shall not be inflated to more than the operating pressure  
indicated on the tire or the posted capacity of the machine, whichever is the lesser. If,  
during inflation, the tire beads do not progress toward the flanges in a normal manner  
or are not fully seated by the time the tire is inflated to its designated operating pressure,  
the tire shall be deflated and the rim wheel disassembled. The wheel and tire shall be  
rechecked for compatibility, relubricated, repositioned, and then reinflated in  
accordance with this rule.  
(7) A tire inflated in accordance with subrule (3) of this rule which reaches the  
tire changing machine's posted capacity before becoming inflated to its designated  
operating pressure or which has to be inflated in excess of its operating pressure to fully  
seat shall be placed in a restraining device positioned behind a barrier or shall be  
bolted on the vehicle, with lug nuts fully tightened.  
(8) Employees shall stay out of the potential trajectory of the wheel when  
inflating a tire and shall not lean or place a rim wheel on or against any flat solid  
surface.  
History: 1990 AACS.  
R 408.17241 Radiators and gas tanks.  
Rule 7241. (1) A radiator cap shall not be removed until the pressure has been  
relieved.  
(2) Where radiators are repaired and cleaned by use of caustic solutions, the  
employee shall be protected by boots, gloves, rubber apron, safety glasses and face  
shield. A deluge water supply at a fixed location shall be available within 25 feet of the  
hazard source. This equipment shall be posted: "Emergency Shower."  
(3) When the top of an open tank or vat containing a hazardous substance is less  
than 36 inches from the floor, platform or ground level, a barrier shall be erected to a  
height of not less than 36 inches on all exposed sides.  
(4) Gasoline tanks shall be thoroughly evacuated and maintained free of all  
explosive vapors or gasoline before commencing welding or soldering repairs.  
History: 1979 AC.  
R 408.17243 Transmissions.  
Rule 7243. When removing or replacing a transmission from below a vehicle,  
a cradle-type device shall be used to hold and carry the transmission.  
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History: 1979 AC.  
R 408.17245 Extractors and wringers.  
Rule 7245. (1) An extractor shall be equipped with a metal cover interlocked  
in a manner to prevent opening when the basket is in motion and power operation of  
the basket when the cover is open.  
(2) An extractor shall be equipped with a motor brake.  
(3) A power wringer used to remove moisture from fabrics shall be equipped  
with a safety release bar which shall remove the tension of the wringer rolls when  
struck.  
History: 1979 AC.  
R 408.17246 Car wash conveyors.  
Rule 7246. (1) A conveyance used to move a vehicle along a line of working  
equipment or moving such equipment along a vehicle, shall have the conveyor, track or  
chain outlined by a 4-inch strip of yellow zone paint or other warning means located  
within 8 inches of the hazardous area.  
(2) Pinch points exposed to contact shall be guarded as prescribed by the  
General Industry Safety Standard Part 14. Conveyors, being R 408.11403 to R  
408.11461 of the Michigan Administrative Code.  
History: 1979 AC.  
Editor's Note: An obvious error in R 408.17246 was corrected at the request of the promulgating  
agency, pursuant to Section 56 of 1969 PA 306, as amended by 2000 PA 262, MCL 24.256. The rule  
containing the error was published in Administrative Code 1979. The memorandum requesting the  
correction was published in Michigan Register, 2016 MR 3.  
R 408.17251 Automotive lift; adoption by reference; auxiliary support device;  
permanent tag; lifting more than rated capacity prohibited.  
Rule 7251. (1) An automotive lift installed, or the modification made, after the  
effective date of this subrule, shall be as prescribed in sections 2, 3, and 5, except  
paragraph 5.7, of the ANSI Standard, B153.1-1974, Safety Requirements for the  
Construction, Care and Use of Automotive Lifts, which is incorporated herein by  
reference and may be inspected at the Lansing office of the department of licensing and  
regulatory affairs. This standard may be purchased at a cost of $20.00 from IHS Global,  
15 Inverness Way East, Englewood, Colorado, 80112, USA, telephone number: 1-800-  
854-7179 or via the internet at website: http://global.ihs.com.  
(2) When an employee is required to work underneath a vehicle supported by a  
hydraulic lift, installed before the effective date of this part, the lift shall be used only  
when an auxiliary support device is engaged and capable of supporting the rated capacity  
of the lift.  
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(3) An automotive lift purchased after December 28, 1974, shall have affixed to it a  
permanent tag showing the name of the manufacturer, model number, serial number, and  
rated capacity.  
(4) An automotive lift purchased before December 28, 1974, shall be equipped with  
a permanent tag showing the name of the manufacturer and its rated capacity. Where this  
information is not available, an outside source knowledgeable in automotive lifts shall be  
used to determine the rated capacity. The capacity shall be permanently labeled on the  
lift.  
(5) An automotive lift shall not be used to lift more than its rated capacity.  
History: 1979 AC; 2013 AACS.  
Editor's Note: An obvious error in R 325.51880 was corrected at the request of the promulgating  
agency, pursuant to Section 56 of 1969 PA 306, as amended by 2000 PA 262, MCL 24.256. The rule  
containing the error was published in Michigan Register, 2013 MR 10. The memorandum requesting the  
correction was published in Michigan Register, 2013 MR 21.  
R 408.17252 Automotive lift; inspections.  
Rule 7252. (1) Wire rope used on a mechanical-type lift shall be inspected as  
prescribed in R 408.17232(3).  
(2) Effective December 31, 1976, the following items shall be inspected and the  
inspections shall be repeated not less than annually thereafter:  
the bolster, bolster connections, lifting arms and pads, lift control devices, oil  
reservoir level, cylinder packing, and all other critical components. Defects shall be  
repaired before the hoist is returned to service.  
History: 1979 AC.  
R 408.17253 Automotive lift; color coding obstructions or hazards in  
work area; vehicle positioning means; corrosive protective methods.  
Rule 7253. (1) Fixed obstructions, protrusions, and other tripping or stumbling-  
type hazards located in the work area of a lift shall be color-coded as prescribed in  
rule 18 of General Industry Safety Standard, Part 1. General Provisions being R  
408.10018 of the Michigan Administrative Code.  
(2) Vehicle positioning means, such as locating ribs, positioning dishes, or  
floor markings, shall be used with frame axle engaging lifts.  
(3) A hydraulic automotive lift cylinder installed underground in a fixed  
position after the effective date of this amendment shall be protected from possible  
catastrophic failure by electrolytic corrosion at the bottom of the cylinder. At least l  
effective means, such as 1 of the following corrosive protective methods, shall be  
used to protect the cylinder:  
(a) The cylinder bottom shall be imbedded in concrete to a depth of not less than 3  
inches and with not less than a 1-inch wall thickness.  
(b) A square plate which is not less than 1/2 inch greater in diameter than the  
cylinder bottom and which is thicker than the cylinder wall shall be continuously welded  
to the cylinder bottom.  
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(c) The cylinder shall be encased in a watertight electrical insulating housing,  
wrap, or coating.  
(d) The cylinder shall be equipped with a sacrificial anode system sufficient to  
protect the cylinder.  
(4) An electromechanical power lift shall have all of the following devices:  
(a) A separate deadman-type raise-lower switch mounted on the power column.  
(b) A separate power disconnect switch that is readily accessible to the operator in  
the lift area.  
(c) A device to automatically de-energize the lift when it has reached the limits of  
its travel.  
(5) A screw-driven lift shall be provided with a safety nut to follow the main  
drive nut, which shall be capable of sustaining the imposed load in the case of failure of  
the main drive nut.  
(6) The lift control mechanism shall automatically return to neutral or "off"  
position when released by the operator.  
History: 1979 AC; 1990 AACS.  
Editor's Note: An obvious error in R 408.17253 was corrected at the request of the promulgating  
agency, pursuant to Section 56 of 1969 PA 306, as amended by 2000 PA 262, MCL 24.256. The rule  
containing the error was published in Annual Administrative Code Supplement 1990. The memorandum  
requesting the correction was published in Michigan Register, 2016 MR 3.  
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;