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5
ADJUSTMENTS
5.1
GENERAL ________________________________________________________________
!
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.
1. Adjustments and maintenance should always be
performed by a qualified technician. If proper
5.2
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.
5.3
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.
adjustment cannot be made, contact an authorized
Jacobsen Dealer.
2. Replace,
do
not
components.
3. Do not wear jewelry or loose fitting clothing when
making adjustments or repairs.
!
CAUTION
Be careful to prevent entrapment of the hands and
fingers between moving and fixed components of the
machine.
4. Do not change governor settings or over speed the
engine.
A
ADJUSTMENTS
adjust,
worn
or
damaged
Figure 5A
B
1/4 TO 5/16 IN.
(6 TO 8 MM)
Figure 5B
5
LF002
LF012
17
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