1 Check the pilot valve
Faulty
Repair or replace the pilot
valve
Normal
2
Check the spool opera-
tion
Faulty
īµīīīīīīīīīīīīīīīīīīīīīīīīīīīīī
block
Normal
ī
Check the slew relief
valve
Faulty
Repair or replace the slew re-
lief valve
Normal
4 The slew motor is faulty
Repair or replace the slew
motor
1. Check the pilot valve
It is likely that only the pilot valve spool on the side
īīīīīīīīīīīīīīīīīīīīīīīīīīī
īīīīīīīīīīīīī
īīī±īīīīīīīīīīīīīīīīīīī
īīīīīīīī¦īīīīīīīīīīīīīīīīīīīīī
2. Check the spool operation
It is likely that the spool does not move in the direction
īīīīīīīīīīīīīīīīīīīīīīīīīīīīīī
īīī
īīī±īīīīīīīīīī īīī īīīīīī
īīīīīīīī¦īīīīī īīīī īīīīīīīī-
erationā
3. Check the slew relief valve
ī ī ī¶īīīīīīī
īīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīīī¬īī
īīīīīīīīī
īīīīīīīīīīīīī
īīīīīīīīīīīīīīīīīīīīīīīīīīīīīīī
4. The slew motor is faulty
ā4. Disassembly and assembly, Slew motorā