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9
ADJUSTMENTS
9.1
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
9.2
FAN BELT ________________________________________________________________
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 kg) 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).
9.3
PUMP DRIVE BELT ________________________________________________________
Adjust reel pump belt (C) to deflect 1/4 in. (6 mm) with a
force of 5-7 lb. (2-3 kg) applied at midspan.
1. Loosen hardware (D and E).
2. Move pump/clutch assembly down to increase
tension on belt (C) then tighten hardware (D and E).
3. Torque hardware (D and E) to 27 - 33 ft. lb. (37-45
Nm).
qualified
technician.
If
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.
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 overspeed the
engine.
proper
D
ADJUSTMENTS
!
CAUTION
E
D
C
Diesel Engine
9
A
B
Figure 9A
Gasoline En
Figure 9B
37
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