Yanmar YDG Series - The Importance of Daily Checks; Keep a Log of Generator Hours and Daily Checks; Yanmar Replacement Parts; Tools Required

PERIODIC MAINTENANCE
YDG Operation Manual
97
Perform periodic maintenance procedures in an
open, level area free from traffic. If possible,
perform the procedures indoors to prevent
environmental conditions, such as rain, wind, or
snow, from damaging the machine.
The Importance of Daily Checks
Periodic Maintenance Schedules assume that the
daily checks are performed on a regular basis.
Make it a habit of performing daily checks before
the start of each shift. See Daily Checks on
page 55.
Keep a Log of Generator Hours and
Daily Checks
Keep a log of the number of hours the generator is
run each day and a log of the daily checks
performed. Also note the date, type of repair, and
parts needed for any service needed between the
periodic maintenance intervals. Periodic
maintenance intervals are every 50, 200, 400 and
1000 generator hours. Failure to perform periodic
maintenance will shorten the life of the generator.
Yanmar Replacement Parts
Yanmar recommends that you use genuine Yanmar
parts when replacement parts are needed.
Genuine replacement parts help ensure long
generator life.
Tools Required
Before you start any periodic maintenance
procedure make sure you have the tools you need
to perform all of the required tasks.
Ask Your Authorized Yanmar
Industrial Engine Dealer or
Distributor For Help
Our professional service technicians have the
expertise and skills to help you with any
maintenance or service related procedures.
Required EPA / ARB Maintenance -
USA Only
To maintain optimum engine performance and
compliance with the Environmental Protection
Agency (EPA) Regulations Non-road Engines and
the California Air Resources Board (ARB,
California), it is essential that you follow the
Periodic Maintenance Schedule on page 99 and
Periodic Maintenance Procedures which start on
page 101.
Tightening Fasteners
Use the correct amount of torque when you tighten
fasteners on the machine. Applying excessive
torque may damage the fastener or component and
not enough torque may cause a leak or component
failure.
CAUTION
The tightening torque in the
“Standard
Torque Chart” on page 98
should be
applied only to the bolts with a “7” head.
(JIS strength classification: 7T)
• Apply 60% torque to bolts
that are not listed.
• Apply 80% torque when
tightened to aluminum alloy.
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