3 ADJUSTMENTS
8
3
ADJUSTMENTS
3.1 GENERAL________________________________________________________________
1. Adjustments and maintenance should always be
performed by a qualified technician. If proper
adjustment cannot be made, contact an authorized
Jacobsen Dealer.
2. Replace, do not adjust, worn or damaged
components.
3. Long hair, jewelry or loose fitting clothing may get
tangled in moving parts.
4. Do not change governor settings or overspeed the
engine.
3.2
FAN BELT (DIESEL ENGINES) _______________________________________________
Inspect and adjust new belt after first ten hours of
operation. Adjust every 100 hours thereafter.
1. Adjust alternator pulley so belt (
B
) deflects 9/32 to
11/32 in. (7 to 9 mm) with a 22 lb. (10 kgf) push at
midspan between pulleys.
2. If tension is incorrect, loosen alternator mounting
bolts (
A
) and adjust alternator until proper belt
tension is achieved. Tighten hardware (
A
).
Figure 3A
3.3
NEUTRAL SWITCH ________________________________________________________
1. Place traction pedal in neutral position, engage
parking brake.
2. Adjust switch
(C)
and bracket
(D)
as required until
sensing portion of switch is centered under damper
mounting hardware.
3. Use a meter to be certain switch contacts are
closed with pedal in neutral position and open when
pedal is depressed in either the forward or reverse
direction.
Figure 3B
WARNING
To prevent injury, lower implements to the ground,
disengage all drives, engage parking brake, stop
engine and remove key from ignition switch before
making any adjustments or performing maintenance.
Make sure the tractor is parked on a solid and level
surface. Never work on a tractor that is supported
only by the jack. Always use jack stands.
If only the front or rear of the tractor is raised, place
chocks in front of and behind the wheels that are not
raised.
!
CAUTION
Be careful to prevent entrapment of the hands and
fingers between moving and fixed components of the
machine.
!
A
B
C
D
