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

15

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