Challenge MS-10B Instruction Manual page 16

2. Rotate the spindle lock knob until the cut out in the knob aligns with the pin in the spline shaft and
pull the shaft out. (See Figure 5 & Figure 6,below)
Spline Pin
Spline shaft lock
knob.
Figure 5
Figure 6
6.0 Installation Guide
Spline shaft
knob.
15