Windshield wiper assembly

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(Failure Modes and Effects Analysis)
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! Item and Function !! Failure Mode !! Effects of Failure !! S !! Causes of Failure !! O !! Design Controls !! D !! RPN !! Recommended Actions !! Responsibility !! Comments
! Item and Function !! Failure Mode !! Effects of Failure !! S !! Causes of Failure !! O !! Design Controls !! D !! RPN !! Recommended Actions !! Responsibility !! Comments
|-  
|-  
-
! Part 1
+
! Motor Connection Link
-
| cell 1,1 || cell 1,2
+
*Rigid bar that transmits rotational power from the motor to Link LN3
 +
| Loose connection || Little or no mechanical power transmitted to Link LN3
|-  
|-  
-
! Row header 2
+
! Rubber Connections
-
| cell 2,1 || cell 2,2
+
*Attaches to connection links
 +
|  Corrosion || Doesn't connect other links and fails to transmit power to links
 +
|-
 +
!  Rubber Thermal Mount
 +
*Protects "Rigid Subassembly" and allows for mounting
 +
| Corrosion || Does not mount properly in car; Fails to rotate the wiper arm
 +
|-
 +
!  Hose
 +
*Transmits wiper fluid
 +
| Holes || Cause wiper fluid to leak and not reach the nozzle
 +
|-
 +
!  Nozzle
 +
*Sprays wiper fluid
 +
| Chipping or breaking || Will not spray the wiper fluid onto the window
 +
|-
 +
!  Spring Connector
 +
*Ensures that spring is in place
 +
| Chipping or breaking || Does not secure spring thereby letting the wiper arms move away from the windshield
|}
|}

Revision as of 14:21, 23 September 2007

Failure Modes and Effects Analysis



Item and Function Failure Mode Effects of Failure S Causes of Failure O Design Controls D RPN Recommended Actions Responsibility Comments
Motor Connection Link
  • Rigid bar that transmits rotational power from the motor to Link LN3
Loose connection Little or no mechanical power transmitted to Link LN3
Rubber Connections
  • Attaches to connection links
Corrosion Doesn't connect other links and fails to transmit power to links
Rubber Thermal Mount
  • Protects "Rigid Subassembly" and allows for mounting
Corrosion Does not mount properly in car; Fails to rotate the wiper arm
Hose
  • Transmits wiper fluid
Holes Cause wiper fluid to leak and not reach the nozzle
Nozzle
  • Sprays wiper fluid
Chipping or breaking Will not spray the wiper fluid onto the window
Spring Connector
  • Ensures that spring is in place
Chipping or breaking Does not secure spring thereby letting the wiper arms move away from the windshield
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