INTRODUCTION
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A-1
SECTION A. INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONS
A
GENERAL
This section contains the general safety precautions
which must be observed during maintenance of the
Mobile Elevating Work Platform (MEWP). It is of utmost
importance that maintenance personnel pay strict
attention to these warnings and precautions to avoid
possible injury to themselves or others, or damage to
the equipment. A maintenance program must be fol-
lowed to ensure that the machine is safe to operate.
MODIFICATION OR ALTERATION OF A MOBILE ELEVATING WORK PLAT-
FORM SHALL BE MADE ONLY WITH WRITTEN PERMISSION FROM THE
MANUFACTURER.
The specific precautions to be observed during mainte-
nance are inserted at the appropriate point in the man-
ual. These precautions are, for the most part, those that
apply when servicing hydraulic and larger machine
component parts.
Your safety, and that of others, is the first consideration
when engaging in the maintenance of equipment.
Always be conscious of weight. Never attempt to move
heavy parts without the aid of a mechanical device. Do
not allow heavy objects to rest in an unstable position.
When raising a portion of the equipment, ensure that
adequate support is provided.
SINCE THE MACHINE MANUFACTURER HAS NO DIRECT CONTROL OVER
THE FIELD INSPECTION AND MAINTENANCE, SAFETY IN THIS AREA IS THE
RESPONSIBILITY OF THE OWNER/OPERATOR.
B
HYDRAULIC SYSTEM SAFETY
It should be noted that the machine’s hydraulic systems
operate at extremely high potentially dangerous pres-
sures. Every effort should be made to relieve any system
pressure prior to disconnecting or removing any por-
tion of the system.
Relieve system pressure by cycling the applicable con-
trol several times with the engine stopped and ignition
on, to direct any line pressure back into the reservoir.
Pressure feed lines to system components can then be
disconnected with minimal fluid loss.
C
MAINTENANCE
FAILURE TO COMPLY WITH SAFETY PRECAUTIONS LISTED IN THIS SECTION
MAY RESULT IN MACHINE DAMAGE, PERSONNEL INJURY, OR DEATH, AND
IS A SAFETY VIOLATION.
• Use only replacement parts or components that are
approved by JLG. To be considered approved, replace-
ment parts or components must be identical or equiv-
alent to original parts or components.
• No smoking is mandatory. Never refuel during electri-
cal storms. Ensure that fuel cap is closed and secure at
all other times.
• Remove all rings, watches and jewelry when perform-
ing any maintenance.
• Do not wear long hair unrestrained, or loose-fitting
clothing and neckties which are apt to become caught
on or entangled in equipment.
• Observe and obey all warnings and cautions on
machine and in service manual.
• Keep oil, grease, water, etc. wiped from standing sur-
faces and hand holds.
• Use caution when checking a hot, pressurized coolant
system.
• Never work under an elevated platform until it has
been safely restrained from any movement by block-
ing or overhead sling, or the safety prop has been
engaged.
• Before making adjustments, lubricating or performing
any other maintenance, shut off all power controls.
• Battery should always be disconnected during
replacement of electrical components.
• Keep all support equipment and attachments stowed
in their proper place.
• Use only approved, nonflammable cleaning solvents.
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