Frame Tilt System; General Description; Circuit Description; Fig. 7-1: Frame Tilt System Components - JLG Lull 1044C-54 II Series Service Manual

Section 7 — Frame Tilt and Oscillation

Frame Tilt System

General Description

Circuit Description

31200079
Frame Tilt
Cylinder
Multi-Spool
Control Valve

Fig. 7-1: Frame Tilt System Components

(Ref. Fig. 7-1) The frame tilt system allows the machine to be levelled
laterally (side-to-side) up to 10°, left or right. The lateral angle of the
machine, relative to level ground, is shown on the frame level indicator.
When hydraulic pressure is applied to the frame tilt cylinder the frame
pivots around each axle. Two counterbalance valves (one on the rod end
and one on the base end) are used to inhibit hydraulic fluid from exiting the
frame tilt cylinder.
Function is controlled by the frame tilt control valve (see page 7-3) located
in the operator's compartment.
Reference Fig. 7-1 above and Section 4-1, "Reference Diagrams".
Frame Tilt
Control Valve
7-1