Winco MD6L - Manual (Page 9)

PAGE 7 60706-121
B. Old equipment requires more frequent inspec-
tion, and possibly servicing, than similar equipment that
has seen less service.
C. Time spent in cleaning, inspecting and correct-
ing minor defects before they become major troubles
means time saved in overhaul and repair.
PREVENTIVE MAINTENANCE
A. Daily Maintenance Checklist
**Oil level is maintained between the “L” low mark and
the “H” high mark on the dipstick.
**Fuel tank full of proper grade of diesel fuel.
**Water and sediment drained from water separator.
**Air cleaner checked regularly. Change the filter
element only as required.
**Inspect for any fluid leaks.
**Look for any loose or damaged parts.
**Trailer hitch and safety chains checked for fitness.
**Tires checked for proper pressure.
**Battery checked for proper fluid level.
**Generator control panel checked for loose or dam-
aged parts.
**Unit checked for general appearance and cleanliness.
**Tower cable checked for broken strands or frays.
**Insure floodlights are securely fastened.
B. Engine Routine Maintenance
A good preventive maintenance program begins with a
good day-to-day maintenance check and continues with
a rigid routine maintenance program at the proper
service intervals. The chart below is to be used as a
guide for your maintenance program. Shorter mainte-
nance intervals are required if the engine is operated in
a dusty environment or if frequent stops are made. If the
engine is operated in consistent ambient temperatures
below 0 or above 100 degrees F., maintenance should
be performed at shorter intervals. Consult your Yanmar
authorized repair location for recommended intervals.
YLT6010DE
INTERVAL ITEM
Every 100 hours Change engine oil and oil filter
Check air cleaner element
Check fuel filter
Check injector nozzles
Check fuel lines
Check battery electrolyte
Every 500 hours Replace air cleaner element.
See Yanmar operator's manual for complete mainte-
nance schedule for the Engine.
LLT6012DE
INTERVAL ITEM
Every 125 hours Change oil and filter if you're
operating regularly above 95
degrees F or high duty factors.
Clean air cleaner.
Check for fuel and oil leaks.
Check serviceability of
battery.
Every 250 hours Change oil and filter if you're
operating regularly below 95
degress F.
Clean fuel injectors if the
exhaust is dirty.
Replace the fuel filter element.
See Lister operator's manual for complete maintenance
schedule for the Engine.
C. Generator Routine Maintenance
Very little routine maintenance is required on the
generator itself as it contains no consumable parts. The
generator and control panel should be kept free of oil
and dirt. The generator air intake and exhaust must be
kept clear of all debris.
1. The generator frequency should be checked
periodically to insure that the engine is maintaining the
correct operating speed. The voltage should be checked
with an external voltmeter.
2. Inspecting generator insulation - Routine
nondestructive testing of the stator windings may be
required where the unit is subjected to excessive
humidity, and/or dirty environment. This is especially
important when the Generator Set is used for prime
power.
CAUTION: EQUIPMENT DAMAGE
When making an insulation test on the main field,
disconnect all diodes. This is done to protect diode
elements from high voltage breakdown during megger
test.
Measure insulation resistance with a megger. If reading
of less than 200 megohm is obtained at 75 degrees F.