Basic Maintenance Schedule - Isuzu Engine - Generac Power Systems MAGNUM MTT20IF4 Operating Manual

Combination light tower generator & water trailer
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Check that winch cables are in good condition
and are centered on each pulley. DO NOT use a
cable that is kinked or starting to unravel.
Check that the safety pins for the mast lock rod
and mast lock bar are present and secured with
a chain. Check that the spring located in the mast
lock bar is not broken or missing. Check the
operation of the mast lock bar.
Check the wheel lugs. Refer to
on page 35.
Check coolant levels. Refer to the engine oper-
ator's manual when determining proper mixture.
Coolant is checked visually by inspecting the level in the coolant overflow jug near the radiator.
Normal operation is between the full and add markings on the overflow jug, this is known as normal range.
WHEN ENGINE IS STOPPED AND COMPLETELY COOL, coolant may be added directly to the jug.
Check the oil levels. Refer to the engine operator's manual when determining proper viscosity.
DO NOT start the unit if the engine oil level is below the add mark on the dipstick.
Normal operation is between the full and add markings on the dipstick.
Add oil only if oil level is below cross-hatch pattern on the dipstick. DO NOT OVERFILL crankcase.
Check fuel level.
Note: If the engine was run out of fuel or the fuel tank was drained, it may be necessary to bleed the fuel lines. Refer
to the engine operator's manual supplied with the unit.

BASIC MAINTENANCE SCHEDULE - ISUZU ENGINE

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
Use the schedule in the following table as a guide for regular maintenance intervals. For additional or replacement
copies of the engine operator's manual, contact an authorized dealer in your area.
Check Oil Level
Check Coolant Level
Check Fuel Level
Drain Fuel Filter
Check Tire Pressure
Check All Electrical Connections
Clean Battery
Check Fan Belt Tension (Replace If Necessary)
Inspect Radiator Fins For Debris, Clean As Required
Preheating Condition Check
Check Engine Starting Conditions And Noise Conditions
Check Exhaust Smoke Condition
Inspect Light Tower Winch For Proper Operation
Replace Engine Oil
Replace Fuel Filter Element
Clean Water Sedimenter Element
Electromagnetic Pump Filter Replacement or Cleaning
"Towing the Unit"
a warranty request.
Item
PROPER MAST CABLE ROUTING
250
Daily
Hours
Hours
00131
500
1000
Hours
37

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