Navistar IC Bus Electric CE Series Instruction Sheet page 18

Disable Direct Hazards (cont.)
Figure 18. Master Service Disconnects (MSD)
1. S-box
2. MSD (2 total)
The Manual Service Disconnects (Figure 18, Item 2), located on the S-box (Figure 16, Item 1) are accessible
from the driver-side of the vehicle.
The MSD can be removed by pressing down the locking tab while pulling the release handle downward
approximately 45 degrees.
Removing the two Manual Service Disconnects (MSD) physically disconnects high-voltage after the S-box,
isolating high-voltage away from High-voltage Isolation zone 1. High-voltage will still exist in high-voltage
isolation zones 2 and 3.
4328785R1
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