Setting engine rpm
Check that the accelerator control functions normally,
i.e. the actuator arm (
1
) is pressed against the low idle
stop (
2
) when the accelerator control is at idle, and is
pressed against the full throttle screw (
3
) when the
accelerator control is at full throttle. Adjust the control
as necessary. Also check that the air filter is not
blocked, and that the air inlet is not blocked.
IMPORTANT!
The engine’s fuel volume and speed are set at the fac-
tory to give highest power and least environmental
impact. These settings must not be disturbed.
NOTICE!
Seals on injection equipment may only be
broken by authorized personnel. Seals which have
been broken must be re-sealed.
Low idle
1
Check that the gap (
7
) is about 3 mm (0.1181")
when the accelerator is in the idle position. If nec-
essary: Undo locknut (
6
) and adjust screw (
8
) to
give the correct gap.
2
Warm the engine up and check the idling speed
with a tachometer (refer to
for correct idling speed)
3
Use adjustment screw (
2
) as necessary to give
the correct idling speed.
4
Check the gap (
3
) again as in item 1.
Race revolutions (high idle)
Warm the engine up and check the race revolutions
with a workshop tachometer when the engine is
unloaded at full throttle (refer to
for correct race revolutions).
Adjust the following as necessary
1
Loosen the stop screw (
3
) so that it does not limit
the movement of the actuator arm (
1
).
2
Run the engine without load at full throttle and
adjust the race revolutions to the correct value
with adjustment screw (
4
); reseal the screw.
3
Adjust stop screw (
3
) to give a clearance of 0.1
mm (0.0039") between the stop screw (
3
) and the
actuator arm (
1
) when the throttle control is in the
full throttle position.
P0008137
1
2
3
4
5
6
7
8
1
Actuator arm
2
Adjustment screw, low idle
3
Stop screw, full throttle
4
Adjustment screw, race revolutions
5
Adjustment screw, max. fuel volume
6
Lock nut
23-7 Injectors and Delivery Pipes
108
47701798 05-2013 © AB VOLVO PENTA
Summary of Contents for D1-13
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