SkyTrak 3606 Service Manual User Manual
Page 317
Hydraulic System
9-123
31. Directional control valve
difficult to shift.
1. Broken internal parts.
2. Scored valve body bore,
producing leakage between
spool and body.
3. Broken centering spring.
1. Disassemble control valve and
replace broken parts.
2. Inspect bore. Replace valve
section if scored.
3. Replace spring.
32. Movement of joystick fails
to cause spool in control
valve to shift.
1. Faulty joystick, joystick switch,
wiring, or solenoid valve.
2. Insufficient pressure to move
spool.
3. Check main control valve for
stuck spool.
1. Troubleshoot and repair as
required. Refer to Section 10
Electrical System.
2. Check pilot pressure.
3. Replace as required.
Hydraulic System Troubleshooting
Problem
Cause
Remedy
Model 3606 • Origin 10/99