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ITEM 57531
S
AFETY
S
ETU
p
INST
ALLA
TION
M
AINTENANCE
Maintenance
WARNING
TO pREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING:
Turn the Engine Switch to its “OFF” position, wait for the Engine to cool, and disconnect the
spark plug cap before performing any inspection, maintenance, or cleaning procedures.
TO pREVENT SERIOUS INJURY FROM EQUIpMENT FAILURE:
Do not use damaged equipment. If abnormal noise, vibration, or excess
smoking occurs, have the problem corrected before further use.
Follow all service instructions in this manual. The Engine may fail critically if not serviced properly.
Many maintenance procedures, including any not detailed in this manual, will need to be performed
by a qualified technician for safety. If you have any doubts about your ability to safely service the
equipment or Engine, have a qualified technician service the equipment instead.
Cleaning, Maintenance, and Lubrication Schedule
Note:
This maintenance schedule is intended solely as a general guide. If performance decreases or if
equipment operates unusually, check systems immediately. The maintenance needs of each piece of equipment
will differ depending on factors such as duty cycle, temperature, air quality, fuel quality, and other factors.
Note:
The following procedures are in addition to the regular checks and maintenance
explained as part of the regular operation of the Engine and equipment.
Break-in period:
a. Breaking-in the engine will help to ensure proper equipment and engine operation.
b. The operational break-in period will last about 10 hours of use.
Do not operate the engine at its maximum speed during this period.
c. Change the engine oil after the initial break-in period.
d. Check/adjust valve clearance after the initial break-in period.
Under normal operating conditions subsequent maintenance follows the schedule explained below.
procedure
Before
Each Use
Monthly or
every 20
hr. of use
Every 3 mo. or
50 hr. of use
Every 6 mo. or
100 hr. of use
Yearly or
every 300
hr. of use
Every
2 Years
Brush off outside of engine
Check engine oil level
Check air cleaner
Check sediment cup
Change engine oil
Clean air filter
*
Check and clean spark plug
1. Check/adjust idle speed
2. Check/adjust valve clearance
3. Clean fuel tank, strainer
and carburetor
4. Clean carbon build-up from
combustion chamber
**
**
Replace fuel line if necessary
**
*
Service more frequently when used in dusty areas.
**
These items should be serviced by a qualified technician.
