SECTION 5 - HYDRAULICS
5-20
– JLG Lift –
3121827
5.5 PRESSURE SETTING PROCEDURES
Cold temperatures have a significant impact on pressure
readings.JLG Industries Inc. recommends operating the
machine until hydraulic system has warmed to normal
operating temperatures prior to checking pressures. We
also recommend using a calibrated gauge. Pressure read-
ings are acceptable if /- 5% of specified pres-
sures.
Main Relief
1.
Install pressure gauge at port “G” on Steer/Brake
valve.
2.
Activate and bottom out either Upper or Lower Lift
Up. Adjust Main Relief to value given in Table 5-4,
Pressure Settings - Prior to S/N 0300062642 or Table
5-5, Pressure Settings - S/N 0300062642 to Present.
Upper Lift Down Relief
1.
With pressure gauge at “G” port on main valve, acti-
vate and bottom out Upper Lift Down.
2.
Adjust Upper Lift Relief to value given in Table 5-4,
Pressure Settings - Prior to S/N 0300062642 or Table
5-5, Pressure Settings - S/N 0300062642 to Present.
Lower Lift Down Relief
1.
With pressure gauge at “G” port on main valve, acti-
vate and bottom out Mid/Lower Lift Down.
2.
Adjust Mid/Lower Lift Relief to value given in Table 5-
4, Pressure Settings - Prior to S/N 0300062642 or
Table 5-5, Pressure Settings - S/N 0300062642 to
Present.
Telescope Relief
1.
With pressure gauge at “G” port on main valve, acti-
vate and bottom out Telescope In.
2.
Adjust Telescope Relief to value given in Table 5-4,
Pressure Settings - Prior to S/N 0300062642 or Table
5-5, Pressure Settings - S/N 0300062642 to Present.
Platform Level Up Relief
1.
On machines prior to S/N 0300062642, install the
pressure gauge at the “G” port on Main Control
valve, activate and bottom out Platform Level Up.
On machines S/N 0300062642 to present, install the
pressure gauge at the "B2" port on the back of the
Main Control Valve, activate and bottom out Platform
Level Up.
2.
Adjust Platform Level Up Relief to value given in
Table 5-4, Pressure Settings - Prior to S/N
0300062642 or Table 5-5, Pressure Settings - S/N
0300062642 to Present.
LC
LR
TR
T2
B2
B1
S2
S1
R2
R1
TC
LU
LL
P
R
L
T1
17
Содержание JLG E400AJP
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Страница 21: ...SECTION 1 SPECIFICATIONS 3121827 JLG Lift 1 7 Figure 1 2 Operator Maintenance Lubrication Diagram...
Страница 32: ...SECTION 1 SPECIFICATIONS 1 18 JLG Lift 3121827 NOTES...
Страница 42: ...SECTION 2 GENERAL 2 10 JLG Lift 3121827 NOTES...
Страница 54: ...SECTION 3 CHASSIS TURNTABLE 3 12 JLG Lift 3121827 Figure 3 3 Speed Sensor Orientation...
Страница 55: ...SECTION 3 CHASSIS TURNTABLE 3121827 JLG Lift 3 13 Figure 3 4 Frame Mounted Electrical Components Sheet 1 of 2...
Страница 56: ...SECTION 3 CHASSIS TURNTABLE 3 14 JLG Lift 3121827 Figure 3 5 Frame Mounted Electrical Components Sheet 2 of 2...
Страница 60: ...SECTION 3 CHASSIS TURNTABLE 3 18 JLG Lift 3121827 Figure 3 7 Steering Components and Spindles...
Страница 62: ...SECTION 3 CHASSIS TURNTABLE 3 20 JLG Lift 3121827 Figure 3 9 Tilt Sensor Location...
Страница 86: ...SECTION 3 CHASSIS TURNTABLE 3 44 JLG Lift 3121827 Figure 3 16 Swing Components...
Страница 88: ...SECTION 3 CHASSIS TURNTABLE 3 46 JLG Lift 3121827 Figure 3 18 Battery Cable Connections...
Страница 90: ...SECTION 3 CHASSIS TURNTABLE 3 48 JLG Lift 3121827 Figure 3 20 On Board Generator...
Страница 97: ...SECTION 3 CHASSIS TURNTABLE 3121827 JLG Lift 3 55 Figure 3 22 Generator Components...
Страница 100: ...SECTION 3 CHASSIS TURNTABLE 3 58 JLG Lift 3121827 Figure 3 23 Generator System Analyzer Flow Chart...
Страница 116: ...SECTION 3 CHASSIS TURNTABLE 3 74 JLG Lift 3121827 NOTES...
Страница 125: ...SECTION 4 BOOM PLATFORM 3121827 JLG Lift 4 9 Figure 4 8 Jib Platform Components and Attaching Hardware...
Страница 127: ...SECTION 4 BOOM PLATFORM 3121827 JLG Lift 4 11 Figure 4 10 Boom Limit Switches...
Страница 140: ...SECTION 4 BOOM PLATFORM 4 24 JLG Lift 3121827 Figure 4 13 Rotator Counterbalance Valve...
Страница 178: ...SECTION 5 HYDRAULICS 5 24 JLG Lift 3121827 Figure 5 26 HydraForce Cartridge Torque Value Chart...
Страница 179: ...SECTION 5 HYDRAULICS 3121827 JLG Lift 5 25 Figure 5 27 Main Valve Components Prior to S N 62642...
Страница 214: ...SECTION 6 JLG CONTROL SYSTEM 6 34 JLG Lift 3121827 NOTES...
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