Service & adjustments, Tires, Carburetor – Craftsman 247.79452 User Manual
Page 15: Engine speed, Flexible pump coupling, Service & adjustment
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•
Tighten wing nut securely.
Clean engine
•
Clean engine periodically. Remove dirt and
debris with a cloth or brush.
C leaning w ith a
forceful spray of water is not recom m ended as
w ater could contam inate the fuel system .
•
Frequently remove grass clippings, dirt and
debris from cooling fins, air intake screen and
levers and linkages. See Figure 15. This will
ensure adequate cooling and correct engine
speed.
Spark Plug
• Clean spark plug and reset the gap to .030" at
least once a season or every 50 hours of
operation. See Figure 16. Spark plug
replacement is recommended at the start of
each season. Refer to engine parts list for
correct spark plug type.
NOTE:
D o not sandblast spark plug. Sparkplug
should be cleaned by scraping or w ire brushing and
w ashing w ith a com m ercial solvent.
030” Feeler Gauge
Figure 16
Muffler
A
WARNING: Do not operate the log splitter
without a muffler, or tamper with the
exhaust system. Damaged mufflers or spark
arresters could create a fire hazard.
SERVICE & ADJUSTMENTS
A
WARNING: Always stop engine,
disconnect spark plug wire, and move it
away from spark plug before performing any
adjustments or repairs.
Tires
• See sidewall of tire for recommended pressure.
Maximum tire pressure under any
circumstances is 30 p.s.i. Equal tire pressure
should be maintained on all tires.
A
WARNING: Excessive pressure (over 30
p.s.i.) when seating beads may cause tire/
rim assembly to burst with force sufficient to
cause serious injury.
Carburetor
If you think the carburetor on your log splitter engine
needs to be adjusted, contact Sears service center.
Engine performance may be affected in altitudes
above 4,000 feet. To improve engine performance,
install a High Altitude Adjustment Kit which is
available at any authorized Tecumseh service outlet.
Engine Speed
The engine speed on your log splitter has been set at
the factory. Do not attempt to increase engine speed
or it may result in personal injury. If you believe the
engine is running too fast or too slow, take the
equipment to the nearest Sears service center for
repair and adjustment.
Important: Changing of engine governed speed will
void engine warranty.
Flexible Pump Coupling
The flexible pump coupling has a “spider” which is a
nylon insert located between the pump and engine
shaft. Over a period of time, this insert will harden and
deteriorate. Replace the spider insert and/or the
coupling halves if you detect vibration or noise coming
from the area between the engine and the pump. If the
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