Linde 350 Series Service Training page 168

Section 2
Page 142
Fault in the braking
system. See "Hydraulic
Braking System".
AH 20 -01 defective,
repair or replace.
A
02.01
Connect LP pressure gauge to port F, engine at idling speed, brake applied.
yes
LP approx. 17.5 bar
Seal port E with blanking plug, repeat measurements.
yes
Check or replace boost pressure valve, repeat measurement.
yes
LP now approx. 17.5 bar
Disconnect axle AH 20 -01, repeat measurement.
yes
Service Training
no
Pressure now
no
approx. 17.5 bar
no
Pressure now no
approx. 17.5 bar
HPV 55 -02 defective,
repair or replace.