PREVENTIVE MAINTENANCE
CHECKS AND SERVICES
Within designated intervals, these checks are to be performed in the order listed.
M-Monthly Q-Quarterly S-Semi-annually A-Annually B-Bi-annually H-Hourly
Generator should
not be used if
Generator should
not be used if
Check for loose, damaged, or
missing parts. Tighten loose
parts. Repair or replace damaged
or missing parts. Inspect
decompression lever for debris.
Clean if needed.
Engine parts are
loose, damaged,
or missing.
Check battery terminals are
secure. Recharge battery if not
in use.
Primary and
Pre-filter Air
Filter
Elements
Inspect for clogged primary
(paper) air filter element. Clean
every 50 hours or as required, or
replace element if damaged.
Replace pre-filter (foam) element.
Air cleaner
element is
clogged or
damaged.
Check for damage or corrosion.
Check for any loose hardware or
corrosion.
Change diesel engine oil after the
first 20 hours of operation and
then after every 100 hours. (1)
Remove diesel engine oil drain
plug and collect oil in an
appropriate chemical resistant
container for disposition/disposal.
Remove, clean, and install oil
strainer. Add proper lube oil.
15W40 Synthetic
Replace fuel filter element.
Inspect gaskets for damage
Check for damaged, missing or
corroded spark arrestor if
present.
Alternator
Brushes
Wires and
Holders
Check for worn alternator
brushes. Length must be a
minimum of 0.5 in. (1.3 cm).
Check for damaged or missing
brush caps, wires, and holders.
Alternator
brushes worn.
Damaged or
missing brush
caps, wires, and
holders
AGI6500DE & AGI6500SDE Operator / Owners Manual Version 11.4.1
Page 24