DUROMAX HYBRID II XP4850EH, User Manual

Page: 19 / 33

MAINTENANCE
The Importance of Maintenance.
Good maintenance is essential for safe, economical, and trouble-free operation. It will also help
reduce air pollution.
Improper maintenance, or failure to correct a problem before operation, can cause a malfunction in
which you can be seriously injured or killed.
Always follow the inspection and maintenance recommendations and schedules in this instruction
manual.
Maintenance Safety
Make sure the engine is off before you begin any maintenance or repairs.
Let the engine and exhaust system cool before touching.
To reduce the possibility of fire or explosion, be careful when working around gasoline. Use only
a nonflammable solvent, not gasoline, to clean parts. Keep cigarettes, sparks, and flames away
from all fuel-related parts.
Maintenance Schedule
Remember that this schedule is based on the assumption that your machine will be used for its
designed purpose. Sustained high-load or high-temperature operation, or use in unusually wet or dusty
conditions, will require more frequent service.
REGULAR SERVICE PERIOD
（
2
）
Before
First Every3 Every6 Every
each month months months year or
use or 20 or 50 or 100 300
Hrs. Hrs. Hrs. Hrs
ITEM
Performed at every indicated month or
operating hour interval, whichever
comes first.
●
Engine oil
Check
○
●
Air cleaner
Check
○
Clean
○
(1)
● ○
Sediment cup Clean
●
Spark plug
Clean-Adjust
○
Replace
○
● ○
Spark arrester Clean
● ○
Idle speed Check-Adjust
● ○
Valve clearance Check-Adjust
●
Combustion
chamber
Clean After every 500 Hrs.
●
Fuel tank and
Clean
filter
○
●
Fuel tube
Check
Every 2 years(replace if necessary)
(1) Service more frequently when used in dusty areas.
(2) For commercial use, log hours of operation to determine proper maintenance intervals.
Change
○
Page 19 of 29