Car Jack Failure Mode Effects Analysis

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Revision as of 23:04, 11 February 2007

Item & Function	Failure Mode	Effects of Failure	S	Causes of Failure	O	Design Controls	D	RPN	Recmd Actions	Responsibility & Deadline	Actions Taken	S	O	D	RPN
Car Jack, used to lift corner of a car	Structural Failure	Car drops, can injure user, damage car	9	To much downward force, component failure	5	Ensure that the jack can be produced consistently with a high factor of safety	5	225	-	-	Preliminary FEA of jack showed approx 22,000 lb could be placed on jack before failure	3	2	5	42
	Rusting of jack over time	Failure of jack	9	Steel the material of the jack, can rust over time making it brittle	5	Make sure that coating is well applied	5	225	-	-	Steel coated to protect from elements, also placement during storage keep it protected from elements	3	3	5	45
	Car falls off of jack	Car drops, can injure user and damage car	9	Useage of jack on uneven ground Misalignment of jack with frame	7	Detection not possible from a pre-release standpoint	1	63	Study base more indepth to see how well it adapts for uneven ground, and study connection point with car frame	Alberto Guzman Matthew Wasserman	Include more written and pictographic documentation with and printed on jack saying to use on level ground	7	6	1	42
	User getting under car	User injury	9	Small workspace easy to be injured, car falling off of jack	4	Detection not possible from a pre-release standpoint	1	36	Study base more indepth to see how well it adapts for uneven ground, and study connection point with car frame	Alberto Guzman Matthew Wasserman	Include more written and pictographic documentation with, and printed on jack, saying to use on level ground, not to get under jack, and to keep hands away from pinch points	7	4	1	28
	User gets fingers/hand caught in pinch point	User injury	9	Careless or uninformed user	5	Detection not possible from a pre-release standpoint	1	36	Study pinch points	Alberto Guzman Matthew Wasserman	Include more written and pictographic documentation with, and printed on jack, cautioning about the pinch points	7	4	1	28
	User not using device as intended	User injury, damage to other items	9	Any number of reasons including jack slipping or applying too much force	2	Detection not possible from a pre-release standpoint	1	18	Think about how often this happens, general user stupidity	Alberto Guzman Matthew Wasserman	Include more written and pictographic documentation with and printed on jack saying to use on the device as intended	7	2	1	14
	User scraping knuckles on ground	User injury	8	Position of jack and design of rod for turning	8	Detection not possible from a pre-release standpoint	1	64	Study deisgn and look at ways to improve this problem	Alberto Guzman Matthew Wasserman	-	-	-	-	-
	User having difficulty aligning with frame	Car can fall off of jack resulting in user injury	8	Location of frame makes it difficult to spot where the jack needs to go in daylight as well as at night	7	Detection not possible from a pre-release standpoint	1	56	Study deisgn and look at ways to improve this problem	Alberto Guzman Matthew Wasserman	-	-	-	-	-

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