Troy-Bilt 030247-1 Operator's Manual page 19

Section 6: Maintenance
Servicing_ S_ark Attester
The engine exhaust muffler has a spark arrester screen.
Inspect and clean the screen every 100 hours of operation
or once each year, whichever comes first.
If you use your generator on any forest-covered, brush-
covered, or grass-covered unimproved land, it must have a
spark arrester.The spark attester must be maintained in
good condition by the owner/operator.
WARNING
DO NOT touch hot surfaces and avoid hot exhaust gases.
Allow equipment to cool before touching.
Keep at least S ft. (152 cm) clearance on all sides of generator
including overhead.
Code of Federal Regulation (CFR) Title 36 Parks, Forests, and
PuNic Property require equipment powered by an internal
combustion engine to have a spark arrested, maintained in
effective working order, complying to USDA Forest service
standard 5100-IC or later revision. In the State of California a
spark attester is required under section 4442 of the California
Public resources code. Other states may have similar laws.
Clean and inspect the spark attester as follows:
i. To remove muffler heat shield from muffler, remove
four screws that connect guard to muffler bracket
(Figure i 8).
Spark Attester
n
Muffler _.
Heat Shield
2. Remove four screws that attach spark attester screen.
3. Inspect screen and replace if torn, perforated or
otherwise damaged. DO NOT use a defective screen. If
screen is not damaged, clean it with commercial solvent.
4. Reattach screen and muffler guard.
Clean Cooling_ System
Over time debris may accumulate in cylinder cooling fins
and cannot be observed without partial engine disassembly.
For this reason, we recommend you have a authorized
service dealer clean the cooling system (Figure 19) per
recommended intervals (see "Maintenance Schedule" on
page [ 6). Equally important is to keep top of engine free
from debris. See "Generator Cleaning".
Clean
CheckVaive Clearance
Regular valve clearance check and adjustment will improve
performance and extend engine life.This procedure cannot
be done without partial engine disassembly and the use of
special tools. For this reason we recommend that you have
an authorized service dealer check and adjust valve
clearance at recommended intervals.
Carburetor Adjustment
The carburetor on this engine is low emission. It is
equipped with a non-adjustable idle mixture valve and
governed idle, if equipped. Governed idle and top speed
have been set at the factory. If adjustment is required, see a
authorized service dealer.
CAUTION
DO NOT tamper with governed speed. Generator supplies
correct rated frequency and voltage when running at governed
speed.
DO NOT modify generator in any way.
O