Maintenance and Service Safety
• Keep the safety decals legible. Remove all grease, dirt, and debris from the safety
decals and instructional labels.
• Always lower the attachment to the ground, engage the parking brake, shut off the
engine, and remove the ignition key. Make sure all moving parts have come to a
complete stop before cleaning, inspecting, adjusting, or repairing.
• Always turn the battery disconnect to the Off position or disconnect the battery
before performing any repairs. Disconnect the negative cable first and then the
positive cable. If battery voltage is necessary for troubleshooting or test
procedures, temporarily connect the battery. Connect the positive battery cable
and then the negative cable.
• Keep all bolts, nuts, screws, and other fasteners properly tightened.
• Never perform maintenance on the power unit and/or attachment if someone is in
the operator’s station.
• Always use protective glasses when handling the battery.
• Check the fuel lines for tightness and wear on a regular basis. Tighten or repair
them as needed.
• To reduce the hazard of fire, keep the battery compartment, engine, and muffler
areas free of grass, leaves, and excess grease.
• Do not touch the engine, the muffler, or other exhaust components while the
engine is running or immediately after stopping the engine. These areas may be
hot enough to cause a burn.
• Allow the engine to cool before storing and do not store near an open flame.
• Do not change the engine governor settings or over-speed the engine. Operating
engine at excessive speeds may increase the hazard of personal injury.
• Springs may contain stored energy. Use caution when disengaging or removing
springs and/or spring-loaded components.
• The hydraulic system may contain stored energy. Before performing maintenance
or repairs on the hydraulic system, remove any attachments, engage the parking
brake, disengage the weight transfer system (if equipped), shut off the engine, and
remove the ignition key. To relieve pressure on the auxiliary hydraulic system, shut
off the power unit engine and move the hydraulic control lever left and right before
disconnecting the auxiliary hydraulic quick couplers.
• Make sure the hydraulic connections are tight and all hydraulic hoses and tubes
are in good condition. Repair any leaks and replace any damaged or deteriorated
hoses or tubes before starting the machine.
• Keep your body and hands away from pinhole leaks or nozzles that eject high
pressure hydraulic fluid. Hydraulic fluid escaping under high pressure can
penetrate the skin causing serious injury, leading to severe complications and/or
secondary infections if left untreated. If hydraulic fluid is injected into the skin,
seek immediate medical attention no matter how minor the injury appears.
• An obstruction or blockage in a drive system or moving/rotating parts may cause a
buildup of stored energy. When the obstruction or blockage is removed, the drive
system or moving/rotating parts may move suddenly. Do not attempt to remove an
General Safety Instructions: Maintenance and Service
Safety
Page 1–4 4520P
09.40003Rev 00
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