SECTION 4 - HYDRAULICS
4-14
– JLG Lift –
3121133
4.9
MAIN VALVE
1
2
3
4
5
6
7
8
11
MG
MS
Mp1
10
9
Valve
Ft-lb
Mn
1. Dump Valve
30 - 35
42 - 49
2. Lift Valve
25 - 30
35 - 42
3. Two Speed Valve
30 - 35
42 - 49
4. Brake Valve
30 - 35
42 - 49
5. Steer Valve
25 - 30
35 - 42
6. Lift Relief
30 - 35
42 - 49
7. Main Relief
25 - 30
35 - 42
8. Steer Relief
30 - 35
42 - 49
9. MG Port
N/A
N/A
10. MS Port
N/A
N/A
11. MP1 Port
N/A
N/A
Figure 4-15. Main Valve Torque Values
Property of American Airlines
