5 hose carrier removal, 6 hose carrier installation, Hose carrier removal – JLG 4017 Service Manual User Manual

Page 31: Hose carrier installation

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3.7

4017

Boom

6. Inspect the boom and welds. Consult the local JLG

distributor or the JLG Service Department if structural
damage is detected.

7. Inspect hoses, hardware, wear pads, mounting

points, chains and other components visible with the
first boom section. Replace any item if damaged.
(Refer to Section 3.4.1, 3.4.1. “Boom Chain
Inspection,” an
d Section 3.7.1, 3.7.1. “Wear Pad
Inspection.”)

Note: It is recommended that if any chain or hose is
damaged that ALL chains or hoses are replaced.

3.3.5

Hose Carrier Removal

1. Loosen and remove both auxiliary hoses in the

boom head.Plug the auxiliary hose ends to prevent
dirt and debris from entering hydraulic system.

2. With fourth boom section setting on suitable

supports loosen and remove the six bolts (three per
side) on the fourth boom section.

3. Pull the hose carrier (3) halfway out of fourth boom

section by hand and set on a suitable support. Place
a sling around the center of the hose carrier to be
able to balance the hose carrier while being
removed.Carefully slide the hose carrier the
remainder of the way out of the fourth boom section
and set down on suitable supports.

3.3.6

Hose Carrier Installation

1. Install the hose carrier into the fourth boom section.

Using a suitable sling, place the sling under the
center of the hose carrier and guide the front of hose
carrier into the rear of the fourth boom section. Set
the rear of the hose carrier on a suitable support.
Remove the sling and slide the remainder of the
hose carrier into the fourth boom section by hand.

2. Apply Loctite 242

®

to the hose carrier bolts. Install

the bolts through the three holes on each side of the
fourth boom section. Install the front two bolts first.
Install the middle two next. Then the rear two bolts
last. Torque to all six bolts to 90 Nm (66 lb-ft).

MZ0770

2

MZ0780

3

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