30 Owner’s Manual for Mobile Light Tower
Maintenance
• DO NOT start the unit if the engine oil level is
below the ADD mark on the dipstick.
• Normal operating level is in the cross-hatch
pattern between the full and add markings on
the dipstick.
• Add oil only if the oil level is below the add
mark on the bottom of the cross-hatch pattern
on the dipstick. DO NOT OVERFILL.
• Check the fuel level.
• If the unit is connected to a remote start or transfer
switch, verify the remote switch is off and tagged.
NOTE:
If the engine was run out of fuel or the fuel tank
drained, it may be necessary to purge the fuel lines. Refer
to the engine operator’s manual supplied with the unit.
Basic Maintenance Schedule
Refer to the original equipment manufacturer’s operating
manual for a complete list of maintenance requirements.
Failure to comply with the procedures as described in the
engine operator’s manual will nullify the warranty,
decrease performance, and cause equipment damage or
premature equipment failure. Maintenance records may
be required to complete a warranty request.
Use the schedule in the following table as a guide for reg-
ular maintenance intervals. For additional or replacement
copies of the engine operator’s manual, contact a
GMASD.
* Generac Mobile recommends oil change intervals on the MLTS equipped with the Mitsubishi L2E Tier 4 engine be
extended to 1,000 hours after initial break-in. The engine comes from the factory with a larger sump that holds
3.6 qts (3.4 L) of engine oil. After the initial 50 hour break-in and oil change, the sump, coupled with the larger oil
filter, allows the engine to operate up to 1,000 hours between routine oil changes. Hot, humid, or dusty conditions
can shorten engine oil service life, regardless of suggested oil change intervals. Always follow the recommendations
of the OEM engine manual that was shipped with the unit for specific operating instructions. If further technical
assistance is required, contact Generac Mobile Technical Service at 1-800-926-9768.
** Maintenance interval may be reduced based on operation in dirty environments.
Basic Maintenance Schedule
Item Daily
First
50 Hr
Every
750 Hr
Every
1,000 hr
As
Required
Check oil level
Check coolant level
Check fuel level
Check tire pressure
Inspect wheel bearings
Inspect all electrical connections
Inspect radiator fins for debris; clean as required
Inspect light tower winch for proper operation
Inspect fan belt for tightness
Inspect radiator hoses and clamp bands
Replace fan belt
Replace engine oil and oil filter
*
Inspect and adjust belt and belt tension
Replace fuel filter element
**
Inspect battery condition
Replace air filter element
**
Lubricate leveling jacks
Purge air from fuel system
Drain residual water from fuel filter
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