Gradall 534D-6T Service Manual - Manual (Page 262)

E
NGINE
S
PEED
NOTE!
Please note the initial
adjustment on current
accelerator pedals.
3.0
• SET UP
1. With the park brake engaged and the transmission in “Neutral”,
start the material handler.
2. Raise the boom high enough to gain access to the engine
compartment.
• CHECK
1. Install an adequate tachometer and check the engine speed
(RPM).
2. At low idle, engine speed should be 800-900 RPM.
3. At full throttle, engine speed should be 2500 +150/-0 RPM.
• ADJUST
1. Adjust low idle engine speed using the screw on the injection
pump.
2. When testing engine speed, make sure the injection pump lever is
contacting the stop.
3. The full-throttle adjustment screw is pre-set at the factory to
prevent “Overspeed”. The screw is not adjustable in the field.
RAISE THE BOOM HIGH ENOUGH TO GAIN
ACCESS TO THE ENGINE COMPARTMENT
LOW IDLE ADJUSTMENT SCREW