APRON WILL NOT RAISE (CONTINUED)
Is the apron binding or jammed as a
result of damage to apron or hull?
Perform apron control valve
Is hydraulic pressure at circuit 19
less than 2,000 psi (13,790 kPa)?
Clear obstructions and
repair mechanical damage.
To block 7
Perform relief valve adjustment.
Can circuit 19 relief valve be set to develop
3,500 psi (24,131 kPa)?
Verify problem is solved.
Replace directional control valve