JLG M4069 Operator Manual - Manual (Page 20)

SECTION 1 - SAFETY PRECAUTIONS
1-10 – JLG Lift – 3121220
1.5 MAINTENANCE
General
This section contains general safety precautions which must
be observed during maintenance of this machine. Additional
precautions to be observed during machine maintenance are
inserted at the appropriate points in this maunual and in the
Service and Maintenance Manual. It is of utmost importance
that maintenance personnel pay strict attention to these pre-
cautions to avoid possible injury to personnel or damage to
the machine or property. A maintenance program must be
established by a qualified person and must be followed to
ensure that the machine is safe.
Maintenance Hazards
• Shut off power to all controls and ensure that all operating
systems are secured from inadvertent motion prior to per-
forming any adjustments or repairs.
• Never work under an elevated platform until it has been
fully lowered to the full down position, if possible, or other-
wise supported and restrained from movement with appro-
priate safety props, blocking, or overhead supports.
• Always relieve hydraulic pressure from all hydraulic circuits
before loosening or removing hydraulic components.
• Always disconnect batteries when servicing electrical com-
ponents or when performing welding on the machine.
• Shut down the engine (if equipped) while fuel tanks are
being filled.
• Ensure replacement parts or components are identical or
equivalent to original parts or components.
• Never attempt to move heavy parts without the aid of a
mechanical device. Do not allow heavy objects to rest in an
unstable position. Ensure adequate support is provided
when raising components of the machine.
• Remove all rings, watches, and jewelry when performing
any maintenance. Do not wear loose fitting clothing or
long hair unrestrained which may become caught or entan-
gled in equipment.
• Use only clean approved non-flammable cleaing solvents.
• Never alter, remove, or substitute any items such as coun-
terweights, tires, batteries, platforms or other items that
may reduce or affect the overall weight or stability of the
machine.
• Reference the Service and Maintenance Manual for the
weights of critical stability items.