JLG 4017 Service Manual - Manual (Page 47)

3.23 4017
Boom
3.7.3 Boom Wear Pad Lubrication
The boom has been factory lubricated for proper wear pad
break-in and will normally require minor further
lubrication. However, after replacing any wear pad(s), or
after prolonged periods of inoperation, light lubrication of
the boom wear surfaces with a factory authorized grease
is recommended to keep the boom wear surfaces
lubricated properly. Light lubrication of the boom wear
surfaces is also recommended when the machine is
stored, to help prevent rusting.
3.8 QUICK SWITCH ASSEMBLY
This machine is equipped with a quick switch system for
easy attachment changes.
3.8.1 Connecting with a Mechanical Quick
Switch Device
1. Retract quick switch device to provide clearance.
Check to be sure lock pin (1) and retainer pin (2) is
out.
2. Align attachment pin (3) with recess in
attachment (4).
3. Engage quick switch device.
4. Shut off engine. Exit cab and insert lick pin and
secure with retainer pin.
5. If attachment is equipped, connect auxiliary
hydraulic hoses. See Section 3.8.3, “Connecting
with a Quick Switch to a Hydraulic Operated
Attachment.”
3.8.2 Connecting with a Hydraulic Quick
Switch Device
1. Retract quick switch device to provide clearance.
Check to be sure lock pin is disengaged.
2. Align attachment pin (3) with recess in
attachment (4). Raise boom slightly to engage
attachment pin in recess.
3. Engage quick switch device.
4. Press the button (5) and at the same time, move the
joystick to engage or to disengage the quick switch
device.
5. Raise the boom to eye level and visually check that
the quick switch pin protrudes through the hole. If the
pin does not protrude through the hole, place the
attachment on the ground and return to step 2.
6. If attachment is equipped, connect auxiliary
hydraulic hoses. See Section 3.8.3, “Connecting
with a Quick Switch to a Hydraulic Operated
Attachment.”
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MZ0870
First Section Boom
MAH0980
5