Adjustments; General Precautions; Engine Fan Belt - Jacobsen LF557 Safety, Operation & Maintenance Manual

Lightweight fairway mower
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10 ADJUSTMENTS

10.1 GENERAL PRECAUTIONS ________________________________________________________

10Adju stments
Before you clean, adjust or repair this equipment, push PTO switch to the OFF position, lower front and rear cutting
units to the ground, turn on the parking brake switch, stop the engine and remove the key.
Make sure the mower is parked on a solid and level surface. Never work on a mower that is lifted only by the jack.
Always use the jack stands.
A qualified technician must always do adjustments and maintenance. If the correct adjustments can not be made,
contact your Jacobsen Dealer.
Inspect the equipment according to the maintenance schedule and keep complete records.
a
Keep the equipment clean.
b
Keep all moving parts correctly adjusted and lubricated.
c
Replace worn or damaged parts before you operate the mower.
d
Keep all fluids at the correct level.
e
Keep the shields in position and all hardware tight.
f
Keep the tires correctly inflated.
When you make the adjustments or repairs, do not wear jewelry or loose fitting clothing.
Refer to the illustrations in the Parts Manual for the removal and assembly of parts.
When you discard hazardous materials (batteries, lubricants, fuel, anti-freeze), follow your local, state or federal-
recommended procedures.

10.2 ENGINE FAN BELT ________________________________________________________

Inspect and adjust a new belt after the first ten hours of operation.
Check the belt every 100 hours after the first 10 hours.
Adjust the alternator position so that the belt moves 1/4 to 5/16 inch (0.6
to 0.8 cm) with a 20 lb. (89 N) push at the center point between pulleys.
Refer to the Engine manual.
If the belt tension is not correct, loosen the alternator mounting bolts
and adjust the alternator until the correct belt tension is set. Tighten the
alternator mounting bolts.
en-67
!
WARNING
Upper Mounting
Bolt
Lower Mounting
Bolt
1/4 to 5/16 Inch
(0.6-0.8 cm)

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Lf570Lf550Lf577

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