Linde 350 Series Service Training page 171

Service Training
HP approx. 420 bar,
LP approx. 17.5 bar.
HP valve for forward
travel direction is OK.
yes
Connect LP pressure gauge to port F", HP pressure gauge to HP test point (on
right side). Block the brake (with brake release valve by pressing brake piston
down with a long screwdriver), depress the forward pedal, read HP and LP.
HP far under 420 bar,
LP approx. 17.5 bar.
Internal leakage, possible
causes: feed valves/
relief valves or towing
bypass valve leaking.
Remove HP pressure gauge from right HP test points and install on left HP test
points (LP pressure gauge stays on port F") and then perform the check with the
reverse accelerator pedal. The readings now refer to the other direction of travel
or components.
02.01
C
no
Average wheel
speed OK.
Section
Page
Check swash angle of
variable pump, see
"Swash angle of the va-
riable pump".
As HP rises,
LP drops to 0 bar.
Leakage in the HP
section for forward travel.
Disconnect AH 20 -01 to
localise fault in the HPV
55 -02 or AH 20 -01.
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