JLG E45A_AJ Service Manual - Manual (Page 40)

SECTION 2 - PROCEDURES
2-24 – JLG Lift – 3120884
Assembly
NOTE: Lubricate all seals and o-rings with clean hydraulic
oil prior to assembly.
1. Install new seal (7 and 6) on the piston sleeve (3).
NOTE: Apply a coat of grease to the thrust ring before slid-
ing onto the shaft.
2. Install new seal (13), thrust washer (16) and bearing
(15) on shaft (2).
NOTE: Apply a coat of grease to the thrust washer before
sliding onto the end cap.
3. Install new seals (9), back-up ring (10), cap bearing
(14), bearing packing (13) and thrust ring (16) on
end cap (4).
4. Place the actuator in the vertical position, install the
piston sleeve (3) in timed relation to the housing (1).
DO NOT MISALIGN THE SLEEVE TOO MUCH ANY ONE WAY, AS IT
WILL MARK THE CYLINDER BORE.
NOTE: The timing marks (the small punch marks on the
face of each gear), must be aligned for proper shaft
orientation. (See Actuator Timing.)
5. Install the shaft (2) into housing (1) by aligning the
proper punched timing marks.
6. Temporarily tape the threaded portion of the shaft
will help installation past the shaft seals (masking
tape).
7. Install the tie rod assembly and secure in place with
the nut.
2.12 BOOM LIMIT SWITCHES
Refer to Figure 2-28., Boom Limit Switches for adjust-
ments to be made to the two Boom Limit Switches which
bolt in place on the upright.
Figure 2-27. Actuator Timing