Removal; Fig. 7-20: Oscillation Control Block Installation - JLG Lull 1044C-54 II Series Service Manual

Frame Tilt and Oscillation

Removal

Oscillation Control Block
Rear Oscillation Lock Cylinder Installed on Machine
7-32
# Description
1 #6 Hydraulic Hose
2 #8 Hydraulic Hose
3 Capscrew
4 Lockwasher
5 Check Valve Cartridge

Fig. 7-20: Oscillation Control Block Installation

(Ref. Fig. 7-20) Use the following control block removal procedures when
the rear oscillation lock cylinder is installed on the machine. For removal
procedures when the cylinder has been removed, see page 7-33.
1. Follow preparation procedures as outlined in Section 3.
2. Place blocks between frame and top of rear axle. This will hold the
frame in place when the control block is removed.
3. Install brake pressure diagnostic port test gauge onto brake diagnostic
port.
4. While watching test gauge, press brake pedal numerous times until
pressure gauge reads 0 psi. Remove test gauge from diagnostic port.
1
1
29
2
1 26
9
10
1
5
6
7
3
4
8
# Description
6 Oscillation Control Block
7 O-Ring
8 Rear Oscillation Lock Cylinder
9 Electrical Lead
10 Pressure Reducing Valve
MV0470
31200079