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Section 4: Maintenance
Emissions Information
For emissions information, see the OEM diesel engine
manual.
Maintenance
Regular maintenance will improve performance and
extend engine/equipment life. Generac Mobile Products,
LLC. recommends that all maintenance work be
performed by a Generac Mobile Products Authorized
Service Dealer (GMP ASD). Regular maintenance,
replacement, or repair of the emissions control devices
and systems may be performed by any repair shop or
person of the owner's choosing. To obtain emissions
control warranty service free of charge, the work must be
performed by a GMP ASD. See the emissions warranty.
Daily Walk Around Inspection
CAUTION
Equipment Damage. Failure to perform a daily
inspection could result in damage to the unit.
Inspect for conditions that could hinder performance or
safety, such as (but not limited to) oil, coolant, and fuel
leakage, blocked vents, loose or missing hardware, and
improper electrical connections.
Inspect the fan belt for signs of cracking, fraying, and
stretching, and verify the belt is properly seated in the
pulley grooves. Replace the belt according to the
manufacturer's recommendations.
NOTE: At the 500 hour or 12 month service interval, it is
recommended that the belt be removed and checked for
wear. While the belt is removed, inspect pulleys and
bearings. Rotate and feel for hard turning or unusual
sounds. Contact the engine manufacturer if pulleys or
bearings need replacement.
Belt Tensioners
Isuzu engines use two types of belt tensioners: manual
and automatic. Adjust the belt using the manual
tensioner according to the manufacturer's specifications.
The automatic tensioner cannot be adjusted or repaired
and is designed to maintain proper tension over the belt's
life. Units with an automatic belt tensioner must be
inspected according to the manufacturer's specifications.
Owner's Manual for MDG25IF4
General Maintenance
Poorly maintained equipment can become a safety
hazard. Periodic maintenance and occasional repairs are
necessary in order for the equipment to operate safely
and properly over a long period of time. Never perform
any routine service (oil and oil filter changes, cleaning,
etc.) unless all electrical components are shut off. Before
servicing the unit, always follow the instructions listed
below.
•
Verify the control power switch is turned OFF (O).
•
Verify the circuit breakers are turned OFF (O).
•
Activate (push in) the emergency stop switch.
•
Disconnect the negative (-) terminal on the battery.
•
Attach a DO NOT USE sign to the control panel.
This signifies that the unit is being serviced and
reduces the chance of someone inadvertently
trying to start the unit.
•
Do not wash the unit with a high pressure hose or
with any kind of power washer.
•
Do not wash the engine block or fuel tank with a
power washer or steam cleaner. Water may enter
the cabinet and collect in the generator windings or
(000306)
other electrical parts, causing damage.
•
Inspect for water inside the cabinet and generator
before each use if the unit is stored outside. If wet,
dry the unit thoroughly before starting.
•
Inspect condition of electrical cords. DO NOT use
the unit if insulation is cut or worn through.
•
Verify the condition of the air filter by viewing the
level of the vacuum draw on the filter minder
gauge. Replace the air filter when the yellow center
bar reaches the red section on the gauge (20 in.
H
O).
2
•
Inspect wheel lugs. See
•
Inspect wheel bearings. See
Bearings.
•
Inspect the wheel bearings for unusual wear.
•
Inspect coolant level daily. See the engine
operator's manual for coolant recommendations
and proper mixture.
– Visually inspect the level in the coolant overflow
tank located near the radiator.
– Normal operating level is between the FULL and
ADD markings on the overflow jug.
– When engine is stopped and completely cool,
coolant may be added directly to the coolant
overflow container.
Maintenance
Towing the
Unit.
Trailer Wheel
35
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