JLG M450 ANSI Service Manual - Manual (Page 174)

SECTION 5 - HYDRAULICS
5-22 – JLG Lift – 3121127
Table 5-4. Pressure Settings - Prior to S/N 0300062642
Circuit PSI Bar
Main Control Valve
Lift Down Relief 550 38
Tower Lift Down Relief 1700 117
Telescope In Relief (A/AJ) 2150 148
Telescope In Relief (AJP) 3000 207
Platform Level Up Relief 2500 172
Platform Level Down Relief 1500 103
Brake/Steer Valve
Steer Relief 2300 159
Main Relief - E450A/M450A 3200 221
Main Relief - E450AJ/M450AJ 3400 234
Jib Valve
Jib Relief (Up and Down) 1500 103
Releveling Valve
Releveling Relief 1200 83
Figure 5-24. Jib Valve Location
Table 5-5. Pressure Settings - S/N 0300062642 to Present
Circuit PSI Bar
Main Control Valve
Lift Down Relief 800 55
Tower Lift Down Relief (E/M450AJ)
Prior to S/N 86022 1700 117
Tower Lift Down Relief (E/M450AJ)
S/N 86022 to Present 2600 179
Tower Lift Down Relief (E/M450A)
Prior to S/N 91053 1700 117
Tower Lift Down Relief (E/M450A)
S/N 91053 to Present 2600 179
Telescope Relief (A) 3000 207
Telescope Relief (AJ & AJP) 3100 214
Platform Level Up Relief 3000 207
Platform Level Down Relief 1200 83
Brake/Steer Valve
Steer Relief 2300 159
Main Relief - E450A/M450A 3200 221
Main Relief - E450AJ/M450AJ 3400 234
Jib Valve
Jib Relief (Up and Down) 2200 152
Releveling Valve
Releveling Relief (E/M450AJ)
Prior to S/N 86022 1200 83
Releveling Relief (E/M450AJ)
S/N 86022 to Present 2200 152
Releveling Relief (E/M450A)
Prior to S/N 91053 1200 83
Releveling Relief (E/M450A)
S/N 91053 to Present 2200 152