Steer Unit Operation - 4 Wheel Steer Machines; 4 Wheel Steer Mode - Neutral - jcb 214e Service Manual

Steer Unit Operation
- 4 Wheel Steer Machines
4 Wheel Steer Mode
- Neutral
Flow from the priority valve enters the steering unit
through the bottom right hand port past the non-
ret urn valve 43C. When t he st eering w heel is
stationary the inner spool A and sleeve B are held
in the neutral position by the centring springs K. As
the unit is 'closed centre' the flow from the pump is
dead ended by the steering unit.
Component Key:
A Inner Spool
B Sleeve
Stator
D
K Centring Springs
X Steer Mode Control Valve
43C Non-Return Valve
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In 4 wheel steer mode the spools of the steer mode
control valve X are configured as shown.
Purchased from www.WorkshopManuals.co.uk
A395730