JLG 1500SJ Service Manual - Manual (Page 513)

SECTION 6 - JLG CONTROL SYSTEM
3121262 – JLG Lift – 6-61
6.10 CALIBRATING STEER
When calibrating steering, each individual wheel must be
calibrated in order to make the tire and wheel parallel with
the frame. Two methods to help ensure proper calibration
are the use of a carpenter’s square to square the spindle
to the axle or aligning the two wheels on one side using a
stretched string.
1. Position the Platform/Ground select switch to the
Platform position.
2. Plug the analyzer into the connector at the base of
the platform control box.