JLG 450A_AJ Series II Service Manual - Manual (Page 308)

SECTION 5 - HYDRAULICS
5-68 – JLG Lift – 3121290
Figure 5-115. Main Control Valve
1. M2 - Proportional Main Pressure Test Port
2. Swing Relief Valve
3. Swing Solenoid: Bottom - Left, Top - Right
4. Main Dump Solenoid
5. Lift Solenoid: Bottom - Down, Top - Up
6. Steer Solenoid: Bottom - Right, Top - Left
7. Flow Control Solenoid
8. Lower Lift Solenoid: Bottom - Down, Top - Up
9. Telescope Solenoid: Bottom - In, Top - Out
10. Flow Control
11. M1 - Telescope Pressure Test Port
12. Telescope Relief Valve
13. Proportional Main Relief Valve
14. Steer Relief Valve
15. Lift Down Relief Valve
16. Check Valve
17. Check valve
18. M4 - Swing Pressure Test Port
19. M3 - Steer Pressure Test Port