Specifications

Service Training
Page 4.2
Section 55
09.04
Valve (20) of lock-out
logic faulty or setting too
low.
With accelerator pedals released and engine running, pull the lift lever fully
back and hold it there.
Loosen banjo bolt at port N of speed control cylinder. With the engine running,
pull the lift lever fully back and hold there.
Valve (20) faulty. Repair
valve, repeat the test.
Speed control cylinder
faulty. Repair cylinder
and repeat test.
Shuttle valve (D) faulty.
yes no
BA
noyes
noyes
noyes
C
Speed control
cylinder extends fully.
Engine accelerates to
2250
+ 50
rpm.
Speed
control cylinder extends
fully. Engine accelerates to
rated speed.
Speed
control cylinder extends
fully. Engine accelerates to
rated speed.
Pressure
rise is directly
proportional to stroke of
pedal up to 14 bar
minimum
Connect LP gauge with screw coupling 1.1 to port V of travel control unit. Start
the engine, fully depress an accelerator pedal and observe the pressure
gauge.
Travel control valve (49)
malfunctioning. Remedy
malfunction or renew
travel control.