Textron Jacobsen 744908A, Technical Manual

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11
Lawnaire
IV & V
SERVICE
SERVICE
When replacement parts are required, use
genuine Jacobsen parts or parts with equivalent
characteristics, including type, strength and
material. Failure to do so may result in product
malfunction and possible injury to the operator
and/or bystanders.
Any warning decal that becomes illegible should
be replaced immediately.
Do not operate equipment without shields in
place.
Do not make any adjustments or perform any
maintenance while the engine is running.
1. Thoroughly clean all tines inside and out when
aerating is completed and apply a light coat of oil
to prevent rust on tines.
2. Check the engine and gear reduction case oil
levels with the engine resting in a level position.
3. Inspect the air filter element and replace it if
necessary.
4. Lubricate the clutch pivot G prior to each
aerating season or as needed.
5. Keep the drive belt free of oil and dirt and
replace if worn or damaged.
6. Keep the roller chain clean and in proper running
order. Lubricate using Lubriplate #13563;
available as Part No. 523248.
7. Check the roller chain for tightness and wear.
Adjust idler sprockets if necessary by loosening
the nut and screw holding the idler sprocket to
the frame and then sliding the sprocket in the
slot to the desired position. Tighten hardware.
NOTE : Excessive roller chain tightness will shorten
the life of the bearings. The chain H should
have movement of 1/8, to 1/4, (3mm to
6mm) deflection at the center point between
the upper idler and drum sprockets.