Copyright © Parallax Inc.
Product Name (#28106)
v2.1 5/5/2009 Page 3 of 4
Step 6:
Attach the sides first, using 3/8” length
screws and nuts as shown. Then attach the servo
horn (with wheel) using the screw that came with the
servo.
Step 7:
Attach the remaining wheels by first
tightening the nut on the wheel then loosening it 1/4
to 1/3 of a turn. Attach the wheel assembly to the
frame with a nut and a lock washer on the inside of
the frame. When the two nuts on each wheel are
tightened, check to see that there is a very small gap
between the wheel and outside nut to allow for easy
rolling, as shown.
Step 8:
Mount the remaining wheel assemblies with
lock washers and nuts. When tightening, leave a very
small gap on the wheel side so the wheel can turn
freely, as shown.
Step 9:
Separate all the rubber tread pieces and connect together as shown below. Each loop contains 1
long, 2 medium and 2 short treads. Please do not pull the treads to disconnect from one another; please use
scissors or an X-acto
®
knife. Pulling on the treads will stretch them beyond use. Check each wheel to make
sure it rolls without binding. If any wheels bind, loosen the nut and remount to maintain a very small gap
between the wheel and nut. Carefully stretch the tread over the wheels.