Specifications

Service Training
Page 4.2
Section 66
09.04
Install LP gauge with adapter V to port F of power limiter. Measure pressure
with engine at idling speed and brake pedal released.
yes no
Pressure under 17.5 bar. Pressure over 20 bar.
Disconnect the hydraulic lines at ports E and F of the power limiter and install
LP gauge with adapter I directly to ports E and F. Determine the Δp between
ports E and F at idling speed.
Pressure now between
17.5 and 20 bar.
yes no
BA
Δp over 12 bar.
Read pressure at port F.
Boost pump (18)
defective, replace pump.
Check boost pressure valve
(26) and increase spring
tension, if necessary. Repeat
the test.
Pressure between
17.5 and 20 bar.
Setting of boost pressure
valve (26) too high. Adjust
or renew the valve.