JLG 4017RS Service Manual - Manual (Page 48)

Boom
3-8 3614RS, 4017RS
3.3.4 Third Boom Section Installation
Note: During reassembly use Loctite ® 243 TM on all bolt threads.
Note: Shim all wear pads. Refer to Section 3.16, “Boom Wear
Pads.” You may have to final adjust the wear pads after the
boom assembly is installed on the machine and hydraulic
power is available.
Note: Coat the interior of all bushings and bores with Mystik
Tetrimoly Grease XD#2 prior to the installation of pins and
bushings. Wear pads and slide areas must be lubricated with
Mystik Tetrimoly Grease XD#2 or an equivalent.
1. Place the second boom section on suitable supports.
2. Lubricate the inside second boom section on areas
where the third boom section wear pads will slide.
3. Lubricate and place the extend chain in the center of
the second boom section.
4. Using a suitable sling, balance the third boom section
and carefully slide the 1m-1,2m (3 ft-4 ft) of the third
boom section into the front of the second boom
section.
5. Set the third boom section onto a suitable support and
reset the sling under the boom head of the third boom
section. Carefully slide the third boom section into the
second boom section.
6. Leave 152 mm-203 mm (6 in-8 in) of the third boom
section out to be able to install the wear pads in the
front of the second boom section.
7. With the sling still under boom head, install the wear
pads and spacers in the front of the second boom
section.
8. Install the previously removed tilt hoses and
(if equipped) the auxiliary hoses mounting bracket (1).
9. Install the extend chain clevis (2), mounting bracket (3)
and secure with bolt (4).
MZ7210
1
MZ7190
4
3
2