JLG 4017RS Service Manual - Manual (Page 70)

Boom
3-30 3614RS, 4017RS
7. Label, disconnect and cap both Tilt hoses (35) and (if
equipped) both Auxiliary hoses (36). Cap all fittings to
prevent dirt and debris from entering the hydraulic
system.
8. Label, disconnect and cap both Tilt hoses (35) attached
to the tubes on the bottom of the boom. If equipped,
label, disconnect and cap both Auxiliary hoses (36)
attached to the tubes on the bottom of the boom.Cap
all fittings and openings to keep dirt and debris from
entering the hydraulic system.
9. Fasten a rope/wire to the hose end below the first boom
section.
10. From the rear of the boom, pull the tilt hoses (and if
equipped) auxiliary hoses from between the first and
second boom sections.
11. Unfasten the rope/wire from the end of the hose
assembly.
3.12.2 Tilt/Auxiliary Hose Installation
1. Fasten the rope/wire left in the boom from the hose
removal to each end of the new hose at the rear of
boom.
2. Slowly pull the rope/wire from below the first boom
section until the hose end is visible at the tube
connections.
3. Unfasten the rope/wire from each end of the hose.
4. Uncap and connect the hoses to the previously labeled
tubes under the first boom section. Refer to Section
2.3.3, “Hydraulic Hose Torque Chart,” for proper hose
torque.
5. Uncap and connect the hoses to the previously labeled
fittings at the tilt cylinder or the auxiliary fittings. Refer
to Section 2.3.3, “Hydraulic Hose Torque Chart,” for
proper hose torque.
6. Properly connect the battery.
3.12.3 Carrier Tilt/Auxiliary Hose Removal
1. Label, disconnect and cap both Tilt hoses (37) and (if
equipped) both Auxiliary hoses (38). Cap all fittings to
prevent dirt and debris from entering the hydraulic
system.
2. Fasten a rope/wire to the end of each disconnected
hose.
3. Loosen and remove lower clamp (39) securing both Tilt
hoses (37) and (if equipped) both Auxiliary hoses (38).
4. Slowly pull each hose assembly halfway out of the rear
boom assembly.
MZ7520
35
36
MZ7220
35
36
M 7530 Z
37 38
39
40