JLG 4017RS Service Manual - Manual (Page 49)

3-9 3614RS, 4017RS
Boom
3.3.5 Second and Third Boom Section
Installation
1. Place the first boom section on suitable supports.
2. From the rear of the boom, feed the tilt hoses (5) and (if
equipped) auxiliary hoses (6) to the proper tube
connections on the bottom of the first boom section.
3. Tighten and torque the tilt hoses and (if equipped)
auxiliary hoses. Verify the hoses are aligned square to
the boom.
4. Lubricate the inside first boom section on area’s where
the second boom section wear pads will slide.
5. Lubricate and place the retract chain in the center of the
second boom section with 254mm (10 in) extending
from the rear of the first boom section.
6. Using a suitable sling, balance the second and third
boom sections and carefully slide 0,9 m-1,22 m
(3 ft-4 ft) into the front of the first boom section.
7. Set the second and third boom sections onto a suitable
support and reset the sling under the boom head of the
third boom section.
8. Carefully slide the two boom sections into the first
boom section. Leave 152 mm-203 mm (6 in-8 in) in of
the two boom sections out to be able to install the wear
pad block and the wear pads in the front of the first
boom section.
9. Install the wear pads, spacers and shims at the front of
the first boom section (7).
10. Install the pin (8) and circlip securing the retract chain
(9) at the rear of the third boom section.
MZ7220
5
6
MZ7130
7
M 7120 Z
9
8