Car Jack Failure Mode Effects Analysis
From DDL Wiki
| 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 |
| 7 | Detection not possible from a pre-release standpoint | 10 | 630 | Study base more indepth to see how well it adapts for uneven ground, and study connection point with car frame |
| Include more written and pictographic documentation with and printed on jack saying to use on level ground | 7 | 6 | 10 | 420 | |
| 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 | 10 | 360 | Study base more indepth to see how well it adapts for uneven ground, and study connection point with car frame |
| 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 | 10 | 280
| |
| User gets fingers/hand caught in pinch point | User injury | 9 | Careless or uninformed user | 5 | Detection not possible from a pre-release standpoint | 10 | 360 | Study pinch points |
| Include more written and pictographic documentation with, and printed on jack, cautioning about the pinch points | 7 | 4 | 10 | 280
| |
| 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 | 10 | 180 | Think about how often this happens, user misuse |
| Include more written and pictographic documentation with and printed on jack saying to use on the device as intended | 7 | 2 | 10 | 140 | |
| 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 | 10 | 640 | Study deisgn and look at ways to improve this problem |
| - | - | - | - | -
| |
| 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 | 10 | 560 | Study deisgn and look at ways to improve this problem |
| - | - | - | - | - |
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