7 MAINTENANCE AND LUBRICATION
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7.8
HYDRAULIC TEST PORTS __________________________________________________
If you have any problems with the hydraulic system, check the hydraulic pressures with the service ports that are
supplied.
All tests must be done with the hydraulic oil at the normal temperature of the engine, unless specified at a different
temperature.
TEST PORTS:
1.
Charge pressure: 20 Bar ± 2 Bar (290 psi + - 29 psi)
2.
Forward traction pressure, engine running, no drive (Wheel
restraints installed). Should balance charge pressure
constant 250 Bar
(3629 psi)
, Peak 280 Bar (
4061 psi).
3.
Reverse traction pressure (plugged port). Engine running, no
drive (Wheel restraints installed), should balance charge
pressure, maximum 210 Bar (3045 psi), peak 250 Bar (3629
psi).
NOTE:
Only approved personnel must service the hydraulic
system.
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3
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