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Resetting the Drawbar to Zero
WARNING:
Reset the drawbar to zero after each use to help prevent drifting of the flexible arms
and damage to the drawbar. Do not store or sterilize the Retractor Arms or the
Handrest while the cable is under tension.
Each Retractor Arm and Handrest is received by the customer with the drawbar at zero
setting: the jointed arm has little or no slack and the drawbar is totally recessed in the well
of the tension-setting knob. The flexible arm is stiffened during surgery by rotating the
tension-setting knob clockwise. The hub of the drawbar will protrude slightly as the cable
is pulled. After much use, the drawbar may begin to protrude excessively (Figures 8 and 9).
Figure 8: Retractor Arm
Figure 9: Handrest
12
PROTRUDING
DRAWBAR
PROTRUDING
DRAWBAR
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