JLG 1100S Service Manual - Manual (Page 200)

SECTION 4 - BOOM & PLATFORM
4-52 – JLG Lift – 3121256
4.7 BOOM CLEANLINESS GUIDELINES
The following are guidelines for internal boom cleanliness
for machines that are used in excessively dirty environ-
ments.
1. JLG recommends the use of the JLG Hostile Envi-
ronment Package to keep the internal portions of a
boom cleaner and to help prevent dirt and debris
from entering the boom. This package reduces the
amount of contamination which can enter the boom
but does not eliminate the need for more frequent
inspections and maintenance when used in these
types of environments.
2. JLG recommends that you follow all guidelines for
servicing your equipment in accordance with the
instructions outlined in the JLG Service & Mainte-
nance Manual for your machine. Periodic mainte-
nance and inspection is vital to the proper operation
of the machine. The frequency of service and main-
tenance must be increased as environment, severity
and frequency of usage requires.
3. Debris and foreign matter inside of the boom can
cause premature failure of components and should
be removed. Methods to remove debris should
always be done using all applicable safety precau-
tions outlined in the JLG Operation & Safety Manual
and the JLG Service & Maintenance Manuals.
4. The first attempt to remove debris from inside the
boom must be to utilize pressurized air to blow the
debris toward the nearest exiting point from the
boom. Make sure that all debris is removed before
operating the machine.
5. If pressurized air cannot dislodge the debris, then
water with mild solvents applied via a pressure
washer can be used. Again the method is to wash
the debris toward the nearest exiting point from the
boom. Make sure that all debris is removed, that no
“puddling” of water has occurred, and that the
boom internal components are dry prior to operating
the machine. Make sure you comply with all federal
and local laws for disposing of the wash water and
debris.
6. If neither pressurized air nor washing of the boom
dislodges and removes the debris, then disassem-
ble the boom in accordance to the instructions out-
lined in the JLG Service & Maintenance Manual to
remove the debris.
4.8 HOSE ROUTING PROCEDURE
For proper hose routing and cable wrap placement and
clamping, refer to Figure 4-25., Figure 4-26., Figure 4-27.,
Figure 4-28., Figure 4-29., and Figure 4-30. It is important
to periodically inspect hoses, wraps and clamps for
proper slack adjustments and clamping integrity (pull
check). Any changes as a result of inspection should be
verified by performing full strokes of boom functions espe-
cially lift, telescope, jib, and platform rotate.
4.9 WIRE ROPE
Each day before using the machine:
1. Raise the main boom to approximately horizontal.
2. Extend and retract the boom sections.
3. Check for delayed movement of the fly section,
which indicates loose wire ropes.
Inspection
NOTE: The pictures in this paragraph are just samples to
show the replacement criteria of the rope.
1. Inspect ropes for broken wires, particularly valley
wire breaks and breaks at end terminations.
2. Inspect ropes for corrosion.
3. Inspect ropes for kinks or abuse.
4. Inspect sheaves for condition of bearings/pins. (See
Dimension Of Sheaves for proper dimension.)
5. Inspect sheaves for condition of flanges. (See
Dimension Of Sheaves for proper dimension.)
Flexing a wire rope can often expose broken wires
hidden in valleys between strands.
A kink is caused by pulling down a loop
in a slack line during improper handling,
installation, or operation.