Neutral positioning test
1. After adjusting the pilot relief valve, the steering wheel must be able to go to neutral position by itself
no later than ~1 second after the activation of the steering wheel has been stopped.
2. The steering unit is in neutral position when the pressure drop (P-T) is no higher than 18 bar.
Check for external leakage
1. After testing of the former items, the port connections are removed.
2. P, EF, L, and R ports are to be plugged with steel plugs.
3. Oil pressure of 20 bar is supplied to the T-front port for approximately 3 minutes:
No leakage must be found in any assemblies.
Service Manual
VSPP Steering unit
Testing of VSPP
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©
Danfoss | November 2019
AX319758618681en-000101
