Adjustments; General Precautions; Belt Adjustment - Jacobsen Zero Turn Rotary Mower Safety, Operation & Maintenance Manual

10 ADJUSTMENTS

10Adjustments

10.1 GENERAL PRECAUTIONS ________________________________________________________

Before you clean, adjust or repair this equipment, push PTO switch to the OFF position, lower the cutting unit 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 BELT ADJUSTMENT _______________________________________________________

If the traction belt or the engine to deck belt slips, check the compressed length of the tension springs.
Measure the compressed spring length for the traction belt
spring. The spring length must be 3 inches (7.6 cm).
If the spring length is not correct, adjust the nut at the end
of the spring until the spring length is 3 inches (7.6 cm).
Measure the compressed spring length for the engine to
deck belt spring. The spring length must be 3 inches (7.6
cm).
If the compressed spring length is not correct, adjust the
nut at the end of the spring until the compressed spring
length is 3 inches (7.6 cm).
If the compressed spring length is correct and the belt
continues to slip, replace the belt. Adjust the compressed
spring length after the belt is replaced.
en-49
!
WARNING
Engine to
deck belt
spring
3 inches
(7.6 cm)
Traction belt
spring