Page Issue 01
Chapter - Scheduled Maintenance
7:6
VT551 - Maintenance
Please refer to the Operator’s Guide, Chapter 6, for the Routine Maintenance Schedules.
The following items are not covered in the Operator’s Guide.
MAINTENANCE AND ADJUSTMENT INSTRUCTIONS
AUXILIARY ENGINE - FUEL SYSTEM BLEEDING
Please refer to the Auxiliary Engine Handbook for information.
THROTTLE SETTINGS
The engine tick-over speed is adjustable and is set by the tick-over screw on the injector pump. The
engine maximum speed is controlled by the CANbus system and is not adjustable. The relevant speeds
are given in the chart below.
ENGINE
TYPE
JOHNSTON
PART NO.
IDLE
SPEED
Rev/min
MAXIMUM
FLIGHT SPEED
(Off Load)
Rev/Min
VM D754TE3
VM D754TE3
7015088 (12V)
7008519 (24V)
850
850
1800
1800
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