JLG 26MRT ANSI Service Manual - Manual (Page 25)

SECTION 2 - PROCEDURES
3120791 – JLG Sizzor – 2-13
.
3. Connect the black lead of the voltmeter to ground
and the red lead to the yellow wire protruding from
the pot on the bottom of the sensor.
4. Adjust the leveling nuts to obtain the highest possi-
ble voltage reading.
5. Check the voltage at the trip point in all four direc-
tions. If the voltage reading is not symmetrical,
repeat step 4 above.
2.13 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.
2.14 PRESSURE SETTING PROCEDURES
NOTE: Make all pressure adjustments with the engine oper-
ating and the hydraulic oil at normal operating tem-
perature. 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 oper-
ating the functions from the platform control station.
Lift Relief Adjustments
1. Install a pressure gauge at gauge port MP, located
on the lower right side of the valve body. The port is
identified by a stamping on the valve body.
2. From the platform control station, activate the Lift Up
function by pressing the ENABLE button and activat-
ing the LIFT control switch to the Up position.
3. Bottom out the Lift Up function and adjust the Lift Up
relief to 2100 psi (145 bar).
4. From the platform control station, activate the Lift
Down function by pressing the ENABLE button and
activating the LIFT control switch and activating the
controller to the Down position.
5. Bottom out the Lift Down function and adjust the Lift
Down relief to 900 psi (62 bar)
6. Remove the pressure gauge from gauge port MP.
Figure 2-14. Tilt Switch Leveling - Voltmeter Adjustment