New Holland CX720 Repair Manual page 2835

STEERING Hydraulic - Test (D.20.C - F.40.C.01)
1. The following practical test will determine if steering
pump output is sufficient to allow satisfactory opera-
tion of the steering system.
Steering Test
2. Set engine speed to high idle
3. Turn steering quickly from lock to lock.
If steering is operating correctly the reaction should
be immediate with no time delay between turning the
steering wheel and movement of the wheels.
4. At full lock the relief valve in the main frame valve
stack should be heard to blow.
5. Steering Circuit Pressure Test
6. Install Tee adaptor (3) Parker fitting 8R6MLOS and
quick release adaptor (2) Parker fitting PD38BTL,
into hose to steering cylinder.
7. Connect 0-250 bar (0-3600 psi) pressure gauge (1)
293244, with hose 292246, using quick release cou-
pler 291924.
8. Set engine speed to high idle.
9. Turn steering wheel to full lock and hold in position.
10. Pressure reading of approximately 175 bar (2538
psi) should be recorded.
TRAVELLING - STEERING Hydraulic
2 4/7/2006
D.20.C / 3
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