JLG 2658E3 ANSI Service Manual User Manual
Page 30
SECTION 2 - PROCEDURES
2-18
– JLG Lift –
3120762
2.16 LIMIT SWITCH ADJUSTMENT
Platform Limit Switch
The platform limit switch is located on the left side of the
frame of the machine. When activated, the switch cuts out
the High Drive function. Adjust the switch to activate when
the platform is raised above the stowed position.
2.17 PRESSURE SETTING PROCEDURES
NOTE: Make all pressure adjustments with motor operating
and hydraulic oil at normal operating temperature. In
addition, all functions must be operated from the
platform control station in order to achieve full pump
speed. It may be necessary to use an assistant to
adjust the pressure settings while operating the func-
tions from the platform control station.
Lift Relief Adjustments
1.
Install a pressure gauge at gauge port MP, located at
the bottom rear of the valve body. The port is identi-
fied by a stamping on the valve body.
2.
From the platform control station, activate the lift up
function by pressing the lift switch and activating the
controller to the full forward position.
3.
While monitoring the pressure gauge at MP, adjust
the lift up relief as follows:
1532E3 - 1625 psi (112 bar).
1932E3 - 2000 psi (138 bar).
2033E3 - 1525 psi (105 bar).
2046E3 - 1800 psi (124 bar).
2646E3 - 1800 psi (124 bar).
2658E3 - 2100 psi (145 bar).
5.
If adjusting the steer pressure, proceed to steer
adjustment; if not, remove the pressure gauge from
gauge port MP.
Main Relief and High Drive Pressure Switch
Adjustment
1.
Install a pressure gauge at gauge port MP, located at
the bottom front of the valve body. The port is identi-
fied by a stamping on the valve body.
2.
Close the steer valve completely by turning clock-
wise.
3.
Once the steer valve is closed activate the steer
switch in either direction until the steer cylinder bot-
toms out.
4.
Adjust your main pressure to 3000 psi (207 bar).
5.
Once you have adjusted your main pressure be sure
and reset your steer pressure to 2100 psi (145 bar).
Figure 2-18. Tilt Switch Leveling - Voltmeter Adjustment