JLG 4017RS Service Manual - Manual (Page 64)

Boom
3-24 3614RS, 4017RS
3.10.7 Fourth Boom Section Installation Only
1. Using a suitable sling, balance the fourth boom section
and carefully slide 914 mm to 1219 mm
(3 ft to 4 ft) into the front of the third boom section. Set
the fourth boom section head onto suitable support
and reset sling under the boom head of the fourth
boom section. Carefully slide the fourth boom section
into the third boom section. Leave
1829 mm to 2438 mm (6 ft to 8 ft) of the fourth boom
section out to be able to install wear pads in front of the
third boom section.
2. With the sling still under boom head install the bottom
front wear pads and backing plates on the third boom
section. Lower the fourth boom section and install the
top front and side wear pads and backing plates on the
third boom section. Tighten as required.
3. Install the two bolts securing the hose carrier (30) to the
third boom section.
4. At the rear of the boom, remove the caps from both Tilt
hoses (28) and (if equipped) both Auxiliary hoses (29).
Connect each hose to the previously labeled tubes
attached to the third boom section.
5. Connect the extend chain clevis (27) to the rear of the
fourth boom section.
3.10.8 Fourth 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 sheaves 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. Install the extend chain (1) on the top rear of fourth
boom section. Lay the extend chain the length of fourth
boom section.
2. Grease the inside third boom section on area’s where
the fourth boom section wear pads will slide.
3. Using a suitable sling, balance the fourth boom section
and carefully slide 914 mm to 1219 mm
(3 ft to 4 ft) into the front of the third boom section. Set
the fourth boom section head onto suitable support
and reset sling under the boom head of the fourth
boom section. Carefully slide the fourth boom section
into the third boom section. Leave
1829 mm to 2438 mm (6 ft to 8 ft) of the fourth boom
section out to be able to install wear pads in front of the
third boom section.
MZ7360
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