Section R. 408.42940 - Personnel lifting hoist inspectionsRule 2940. The employer shall ensure that each day before use, a competent person visually inspects all hoists to verify that the following conditions are met:
(a) The manufacturer's guidelines and recommendations are used; however, when not available, the following minimum guidelines shall be used: (i) A competent person, knowledgeable of hoists, shall complete inspections.(ii) All repair and inspection records shall be available and accessible for a minimum of 2 years.(iii) A tear down inspection record shall be available until the next teardown inspection is completed.(iv) Any hoist that has been idle for a period of over 6 months shall be given an annual inspection.(v) Any hoist that has an unknown history of repair or maintenance shall have a tear down inspection.(b) The inspection criteria for a gear and hydraulic oil sample analysis is to evaluate the properties of the oil. The general guidelines are the following: (i) Hydraulic oil shall conform to ISO standard 4406, hydraulic fluid power--fluids--method for coding the level of contamination by solid particles, second edition, December 1999, for cleanliness level of 18/16/14.(ii) Gear oil shall conform to the following gear contaminate guideline: (A) 100 to 500 ppm normal.(B) 501 to 800 ppm caution.(C) 801 and up ppm unacceptable.(c) A daily inspection shall be performed, which shall include, at a minimum, all of the following: (i) Engine oil level shall be checked.(ii) Engine coolant levels shall be checked.(iii) Check for external oil leaks.(iv) Hydraulic oil reservoir level shall be checked.(v) All safety devices and brakes shall be checked to ensure they function properly.(vi) A visual inspection shall be conducted for loose or missing structural connections.(d) A semi-annual inspection shall be performed, which shall include, at a minimum, all of the following: (i) Engine oil level shall be checked.(ii) Winch oil level shall be checked.(iii) Engine coolant levels shall be checked.(iv) System shall be checked for external oil leaks.(v) Hydraulic oil reservoir level shall be checked.(vi) All safety devices and brakes shall be tested to ensure they are functioning properly.(vii) A visual inspection shall be conducted for loose or missing structural connections.(viii) A complete oil analysis shall be conducted.(ix) The winch assembly shall be dynamically tested in both the hoisting and lowering directions while under a load of at least 30% of the hoist lifting capacity.(x) The inspection shall be documented in writing and maintained for 2 years.(e) An annual inspection shall be performed, which shall include, at a minimum, all of the following: (i) Engine oil levels shall be checked.(ii) Winch oil levels shall be checked.(iii) Engine coolant levels shall be checked.(iv) System shall be checked for external oil leaks.(v) Hydraulic oil reservoir level shall be checked.(vi) All safety devices and brakes shall be tested to assure they are functioning properly.(vii) A visual inspection shall be conducted for loose or missing structural connections.(viii) A complete hydraulic and gear oil analysis shall be conducted.(ix) The winch assembly shall be dynamically tested in both the hoisting and lowering directions while under a load of at least 30% of the hoist lifting capacity.(x) Lubricating oil in the hoist drum shall be changed after testing.(xi) Hydraulic fluid and filter shall be changed after testing.(xii) The annual inspection shall be documented and maintained for 2 years.(f) Teardown inspection of the winch assembly shall be performed by a qualified person. The following shall apply: (i) A teardown inspection shall include the hoist being completely disassembled; cleaned and inspected; and replacement of all worn, cracked, corroded, or distorted parts such as pins, bearings, shafts, gears, brake rotors, brake plates, drum, and/or base.(ii) After a teardown inspection, a certificate shall be issued by the inspector/service person effective of the date the hoist is placed back in service. The tag shall identify the hoist mechanism, the inspector, and date of the inspection.(g) Winch assemblies that adhere to the required daily, monthly, semi annually, and yearly inspection criteria, shall conform to the following teardown inspection time frame: (i) Severe duty (applies to those winch assemblies that are used more than 125 hours a month at or near the rated capacity of the hoist) is every 3 years.(ii) Moderate duty (applies to those winch assemblies that are used 50 to 125 hours per month and normally operate at considerably less than the winch assembly rated capacity) is every 5 years.(iii) Infrequent use (applies to those winch assemblies that are used for 50 hours or less per month and normally operate less than the winch assembly rated capacity) is every 7 years.(h) Winch assemblies that do not adhere to the inspection criteria in subdivision (g) of this subrule, shall have a tear down inspection every 3 years.(i) During any inspection, items found that may affect the performance of the unit must be repaired before use.(j) Documentation of the inspection shall include, but not be limited to, winch model and serial number, name and employer of repair/inspection technician, date and description of findings, parts replaced, and test results.Mich. Admin. Code R. 408.42940