4 ADJUSTMENTS
en-12
4
ADJUSTMENTS
4.1 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.
Do not wear jewelry or loose fitting clothing when making
adjustments or repairs.
4.
Do not change governor settings or overspeed the engine.
4.2
MOW SPEED _____________________________________________________________
Cutting quality is better at speeds well below the transport
speed of the mower. An initial mow speed of five to six mph is set
at the factory and should be satisfactory for most cutting
conditions. Local turf conditions, however, may respond better
to a different speed.
To set mow speed, loosen jam nut
(A)
and adjust stop screw up
to reduce speed, down to increase speed. Tighten nut to hold
adjustment in place.
Figure 4A
4.3
BELT ____________________________________________________________________
Inspect and adjust new belt after first ten hours of operation.
Adjust every 100 hours thereafter.
Adjust alternator pulley so belt deflects 1/4 to 5/16 in. (6 -8 mm)
with a 20 lb. push at midpoint between pulleys. See engine
manual.
If tension is incorrect, loosen alternator mounting bolts
(B)
and
adjust alternator until proper belt tension is achieved.
Figure 4B
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 mower is parked on a solid and level surface.
Never work on a mower that is supported only by the jack.
Always use jack stands.
If only the front or rear of the mower 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
LF002
1/4” TO 5/16”
(6 TO 8 MM)
B
LF012
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