SMB-189
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SERVICE MANUAL BULLETIN
SMB-189
The New Flyer vehicles described in this manual may be protected by one or more
patents and design applications or registrations in the United States and Canada,
and in other countries. Refer to “Vehicle Patent Information” in this manual.
Copyright © 2019 New Flyer Industries Canada ULC
Fig. 7: Manual Service Disconnect - 2
Fig. 8: Manual Service Disconnect - 3
2.2.
Energizing Procedure
Perform a visual check to ensure that all
possible HV compartments are closed and
there is no debris, tools or test equipment
lying on HV terminations before energizing
the vehicle.
DO NOT touch cable terminations until
checking to ensure there is no voltage
between any of these cables and with
respect to vehicle chassis.
While connecting HV cables continu-
ously monitor, with the DMM, for the
inadvertent appearance of HV. If HV
appears troubleshoot why the HV
appeared and resolve before proceed-
ing.
1. Using insulated tools, reconnect all high
voltage cables.
☞
NOTE:
For the following devices, use a phase
rotation meter to ensure correct cable
sequences:
❒
Air Compressor
❒
ESS Heat Exchanger
❒
HVAC Unit
2. Reinstall high voltage junction box covers.
3. Install the ESS Manual Service Disconnect
plugs.
4. Close all HV access panels, doors, enclo-
sures.
5. Remove the lockout / tagout from the 12/24
volt Battery Disconnect switch and turn the
switch to the ON position.
6. Remove the lock/tag from the High Voltage
Interlock switch and set the switch to the
HV ON position.
7. Set the Master Run switch to the DAY-RUN
or NIGHT-RUN position.
8. Remove “Safety Barricade” with warning
lights and “Danger High Voltage” signs
around the vehicle perimeter.
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