SECTION 4 - BOOM & PLATFORM
4-18
– JLG Lift –
3121623
Assembly
1.
Fix the actuator in a proper way to the bench
2.
Reinstall all sealing elements on their particulars
paying attention to mounting direction (see
drawing). If you have difficulty use appropriate
bushings cone.
NOTE:
For easy mounting, it is recommended to heat up
the elements of PTFE details 6, 7 and 10 in hot water
at 70/80 ° C.
3.
Put piston P, complete with seals 6 and 7 in actu-
ator body C.
4.
Engage gear ring G with piston P referring to the
previously marked position.
5.
Turn gear ring G and match references between
this and body (made during removal) and insert
mounting pins 3 until it is under the level of gear
ring.
6.
Place bearing 5 and thrust ring 4 (4+5+4) on side
B.
NOTE:
Lubricate with grease the bearing and thrust ring.
Use grease EP 0 (NLGI consistency 0; soap type Lith-
ium; base oil Mineral).
7.
Insert shaft A from side B, complete with seals 8
and 10 and guide ring 9, engage it with piston P
by referring to previously marked tooth.
NOTE:
During this operation pay attention to the sealing
elements between the shaft A and piston P.
8.
Place bearing 5 and thrust ring 4 (4+5+4) on side
A.
9.
Screw flange F, with seal 10 and guide rings 9,
until the reference and the gap between shaft
and flange do not match (clamp the shaft using
the holes Ø6 on the head).
10.
Put the pins S.
11.
Install any plugs and bleeder screws on the body
(eg: 1, 2).
12.
Install valve V and details M.
13.
Check that there isn’t air inside the actuator. To
get out any internal air put the actuator in hori-
zontal position with the axis of rotation, with the
attacks facing up and make several rotations (10/
20).
14.
To assure the oil exchange within the system
during the work the volume of the connecting
pipes must be lower than the actuator displace-
ment.
15.
Align the fixing holes of structure/machine to
those of structure/actuator flange and lock this
position by pins/screws of suitable torque.
16.
Connect the rotary actuator as per layout on the
drawing.
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