Specifications

Service Training
Page 4.2
Section 53
09.04
4.2.5.4 HYDRAULIC SPEED CONTROL FOR THE ENGINE
The engine speed control check is first performed, as described below, merely as a functional test. If any
malfunctions are detected during the test, a detailed troubleshooting must be carried out subsequently.
4.2.5.4.1 FUNCTIONAL TEST
TEST CONDITIONS
- Engine and travel drive at operating temperature
- Pedals properly adjusted
TEST
Prüfung Symptoms Assessment
Start the engine and, with the Each time the engine Speed control is in order.
brake applied, fully depress speed control cylinder moves
the F and R accelerator the injection pump lever
pedals. as far as the stop. Engine
Then, with the pedal released, speed reaches the upper
move the lift lever to the "Lift" idling speed of 2250
+ 50
RPM
position, hold there and and then drops to the lower
then release the lever. idling speed of 750
+ 50
RPM.
Release the brake, fully
depress the F and R
accelerator pedals
consecutively and
release them.
Caution: Rotating wheels!
If these results are not obtained, or the engine does not accelerate when driving, determine and eliminate
the cause as follows.
4.2.5.4.2 TROUBLESHOOTING
TEST CONDITIONS
- Pedals properly adjusted.
- Engine and travel drive at operating temperature.
- Engine cover raised.
- Floor plate removed.
- Front cover removed.
- Brake pedal locked in the "applied" position.
- Truck jacked up and secured so that both traction wheels can rotate freely.