PASCO ME-6807A Human Arm Model - Manual (Page 8)

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H u m a n A r m M o d e l R e p l a c i n g t h e E l b o w - s t o p P a d
8
Replacing the Elbow-stop Pad
The post that limits the travel of the elbow is padded with plastic tubing. If the plastic
becomes worn, complete these steps to replace it.
1. Use a sharp knife to remove the old pad.
2. Cut a 10 mm piece from tubing included with the arm model.
3. Press the piece of tubing onto the post (Figure 14).
Replacement Parts
The Human Arm Model Spares Kit (PASCO part ME-6808) is available to replace
lost or worn parts. It contains:
• Cord, inelastic (120 cm)
• Elastic cord (60 cm)
• Cord locks (10)
• Balls (3)
• 100 g masses (2)
• Screws and nuts for attaching mass to hand (2 of each)
• Sensor-mounting clamps (2)
• Sensor-mounting studs (2)
• T-screws for rod clamp (4)
• Shoulder stops (2)
• Bumper that contacts shoulder stops (1)
• Screws and nuts for locking wrist (2 of each)
• Tubing for replacing elbow stop pad (30 cm)
About the Experiments
Experiments are presented on the following pages as examples of ways to set up and
use the arm model. In many of these experiments, students are asked to perform an
action with their own arms and make predictions before reproducing the action on the
arm model. Teacher's notes and sample data can be found on page 28.
Figure 14: Elbow-stop
pad replacement