Changes between Version 1 and Version 2 of Hand/262/Troubleshooting


Ignore:
Timestamp:
May 12, 2011, 4:06:57 PM (8 years ago)
Author:
edison
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • Hand/262/Troubleshooting

    v1 v2  
    22Most of the symptoms repeated in this section were generated by Barrett's own lab Hands which are assigned to destructive testing over millions of cycles. 
    33
    4 Symptom:        The Hand behaves erratically.  It disobeys some commands while obeying others.
     4=== Symptom:    The Hand behaves erratically.  It disobeys some commands while obeying others. ===
    55
    66Possible Solution:
     
    88
    99
    10 Symptom:        The host computer will not communicate with the !BarrettHand™.
     10=== Symptom:    The host computer will not communicate with the !BarrettHand™. ===
    1111
    1212Possible Solution:
     
    2020
    2121
    22 Symptom:        Initial strain gage values do not fall within specified range.
     22=== Symptom:    Initial strain gage values do not fall within specified range. ===
    2323
    2424Possible Solution:
     
    3434}}}
    3535
    36 Symptom:        The strain gage values do not follow the expected strain gage curves, shown in Figure 35, while grasping.
     36=== Symptom:    The strain gage values do not follow the expected strain gage curves, shown in Figure 35, while grasping. ===
    3737
    3838Possible Solution:
     
    4444
    4545
    46 Symptom:        Only the fingertip closes when the entire finger should close (Premature Breakaway).
     46=== Symptom:    Only the fingertip closes when the entire finger should close (Premature Breakaway). ===
    4747
    4848Possible Solution:
     
    5252
    5353
    54 Symptom:        Finger sticks fully closed.
     54=== Symptom:    Finger sticks fully closed. ===
    5555
    5656Possible Solution:
     
    6565
    6666
    67 Symptom:        Finger sticks open.
     67=== Symptom:    Finger sticks open. ===
    6868
    6969Possible Solution:
     
    7575
    7676
    77 Symptom:        Finger moves in opposite direction of commanded motion.
     77=== Symptom:    Finger moves in opposite direction of commanded motion. ===
    7878
    7979Possible Solution:
     
    8282
    8383
    84 Symptom:        The !TorqueSwitch™ does not breakaway properly, prohibiting the fingertip from completing a form grasp around an object.
     84=== Symptom:    The !TorqueSwitch™ does not breakaway properly, prohibiting the fingertip from completing a form grasp around an object. ===
    8585
    8686Possible Solution:
     
    102102
    103103
    104 Symptom:        Using the GTO or GTC command to open or close the fingers results in the fingers moving at slightly different velocities.  This does not happen with GO and GC commands.
     104=== Symptom:    Using the GTO or GTC command to open or close the fingers results in the fingers moving at slightly different velocities.  This does not happen with GO and GC commands. ===
    105105
    106106Possible Solution:
     
    111111
    112112
    113 Symptom:        Fingers will not close completely.
     113=== Symptom:    Fingers will not close completely. ===
    114114
    115115Possible Solution:
     
    121121        1. If the problem persists, contact Barrett Technology.
    122122
    123 Symptom:        The spread motion has excessive friction.
     123=== Symptom:    The spread motion has excessive friction. ===
    124124
    125125Possible Solution:
     
    128128        1. If the problem persists, contact Barrett Technology.
    129129
    130 Symptom:        The threaded locking ring does not fit on the threaded base of the !BarrettHand™.
     130=== Symptom:    The threaded locking ring does not fit on the threaded base of the !BarrettHand™. ===
    131131
    132132Possible Solution:
     
    134134        1. The threads on the base of the !BarrettHand™ have been damaged.  Contact Barrett Technology for service.
    135135
    136 Symptom:        The fingertip flops over backwards after a severe impact against a finger tip.
     136=== Symptom:    The fingertip flops over backwards after a severe impact against a finger tip. ===
    137137
    138138Possible Solution:
    139139        1. The finger cable is broken.  Verify this by removing the Shroud Cover, see Figure 23, and inspecting the cable.  The cable should be intact and not broken.  If the cable is broken, contact Barrett Technology.
    140140
    141 Symptom:        The fingertip has excessive backlash.
     141=== Symptom:    The fingertip has excessive backlash. ===
    142142
    143143Possible Solution:
     
    145145        1. The finger cable is broken.  Verify this by removing the Shroud Cover, see Figure 23, and inspecting the cable.  The cable should be intact and not broken.  If the cable is broken, contact Barrett Technology.
    146146
    147 Symptom:        The fingertip has driven itself open beyond the normal full-open position and perhaps is hyperextended, but it is not loose.
     147=== Symptom:    The fingertip has driven itself open beyond the normal full-open position and perhaps is hyperextended, but it is not loose.
    148148
    149149Possible Solution:
     
    151151        1. If problem persists, Hand must be serviced.
    152152
    153 Symptom:        The spread fingers F1 and F2 are at different angles around the palm.
     153=== Symptom:    The spread fingers F1 and F2 are at different angles around the palm. ===
    154154
    155155Possible Solution: