Operation and maintenance manual

Section 220-0000
Steering System - Steering System Schematic
SM 1390 Rev 2 2-02
6
STEERING VALVE DIAGNOSIS
TABLE626
CONDITION REASON REMEDY
Steering wheel does not centre Binding in steering linkage to valve Align as required
Worn gear wheel Replace parts
Broken neutral position springs Replace neutral position springs,
drain and flush system
Burrs on sleeve or spool Disassemble and repair or replace
parts
Apparent inability to steer when
wheel is turned slowly
Dirt in system Drain and flush system. Refill with
clean oil.
Slow steering Excessive wear in sleeve and spool Replace sleeve and spool
Excessive wear in gear wheel Replace gear wheel
Hard steering See 'Slow Steering'
Opposite steering Lines hooked up incorrectly Reconnect correctly
Wrong orientation between gear
wheel and gear rim
Realign per instructions
Steering wheel rocking back and forth See 'Opposite Steering'
Steering wheel continues to turn Input linkage binding Align as required
Burr on sleeve or spool Disassemble and repair or replace
Dirt in system Drain and flush system. Refill with
clean oil.
Broken neutral position springs Replace neutral position springs,
drain and flush system
No steering action Sleeve and spool locked together Disassemble and repair or replace
* * * *