JLG 450AJ Service Manual - Manual (Page 44)

SECTION 2 - PROCEDURES
2-28 – JLG Lift – 3120869
2.15 EXTEND-A-REACH
Removal
1. Place the Extend-A-Reach in a horizontal position
and support the complete assembly with adequate
blocking.
2. Remove the Platform as follows:
a. Disconnect the electrical connectors going into
the platform control box.
b. Remove the bolts, nuts, and washers connect-
ing the platform basket to the platform support.
c. Using a suitable lifting device, remove the plat-
form basket from the platform support.
3. Tag and disconnect the hydraulic lines running to
the extend-a-reach. Use a suitable container to col-
lect any residual fluid. Cap the hydraulic lines and
ports.
4. Remove the hardware securing the extend-a-reach
pivot pin at the boom. Using a suitable brass drift
and hammer, remove the pin from the fly boom. Use
a suitable lifting device and remove the extend a
reach.
2.16 ADJUSTMENT PROCEDURE FOR
LOCKOUT VALVE
1. With the turntable centered, adjust the bracket with
the washers to push the plunger in 7.9 mm ± 1.6
mm (5/16" ± 1/16").
CHECK VALVE
BOTTOM TUBE
TOP TUBE
E.A.R. CYLINDER
GUARD
PIVOT SHAFT
ROTATE CYLINDER
PLATFORM SUPPORT
Figure 2-23. Extend-A-Reach
BRACKET
WASHER
LOCKOUT
VALVE