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May 15, 2026 Service bulletin

Instructions for loading software to adjust Transtech voltage regulator PWM frequency.

New Flyer technical service bulletin ITS61729 for 2025 New Flyer XE60 and 2026 New Flyer XHE40.

Bulletin number
ITS61729
Component
Fuel/propulsion system
Summary
Instructions for loading software to adjust Transtech voltage regulator PWM frequency.

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