DIESEL ENGINE, MUFFLER, FUEL SYSTEM,
AND CLUTCHES
Air Intake System
16
2189
Figure 16-20
Idle Throttle Adjustment Screw
3077
Figure 16-21
High-Speed Throttle Adjustment Screw
High-Speed RPM Adjustment
1.
Clean paint, grease, and dirt from any one of the three fuel injector lines
.
See
following NOTE.
NOTE:
It is very important that the line be cleaned enough to expose the metal.
Read the tachometer and diesel probe instructions before any RPM adjustments are made.
2.
Secure the fuel line clamp to the clean area of the fuel injector line
.
3.
Secure the negative (–) line clamp to the negative (–) battery post
4.
Secure the diesel probe to the tachometer
See following NOTE.
NOTE:
It may be necessary to cut the wire attached to the adjustment screws. The manufacturer recommends that a
new wire be secured to the screws after new RPM settings are established.
5.
Turn the key switch to start and allow the engine to idle. Press the accelerator pedal all the way to the floor.
Measure the RPM with the tachometer and diesel probe attachment. Note the RPM reading.
6.
Turn the key switch OFF and remove the key. Turn the high-speed adjustment screw 1/4 turn clockwise to
lower the RPM, or counterclockwise to raise the RPM.
7.
Turn the key switch to start and allow the engine to idle. Press the accelerator pedal all the way to the floor.
Measure the RPM. Repeat steps 5 and 6 until the high-speed RPM is correct.
NOTE:
The high-speed RPM for this diesel engine is 3825 RPM ±25.
AIR INTAKE SYSTEM
See General Warnings, Section 1, Page 1-2.
AIR FILTER REPLACEMENT
The air filter should be inspected periodically and replaced when necessary. Filter changes should not exceed the
recommended interval.
See Periodic Service Schedule, Section 10, Page 10-1.
More frequent service may be
required in extremely dirty operating environments. In the event of a loss of power, sluggish acceleration, or a roughly
running engine, service the air filter immediately.
2016 Carryall 1500/1700 and XRT 1550 Maintenance and Service Manual
Page 16-21
Summary of Contents for Carryall 1500 2016
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