Exmark 4500-370, Руководство оператора

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Maintenance
Adjustments
Note:
Disengage PTO, shut off engine, wait for
all moving parts to stop, engage parking brake, and
remove key before servicing, cleaning, or making any
adjustments to the unit.
Deck Leveling
1. Position mower on a flat surface.
2. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
3. Inflate drive tires to 15 psi (103 kPa).
4. Verify all hairpins are in the 3 inch deck height
holes with the spacers under the hair pins
(Figure 15).
Figure 15
Right Hand Side Shown
1. Hairpin 3. Deck support pin
2. Spacer
5. Shorten/lengthen each deck support pin to obtain
blade tip height of 3 inches at the front of the
deck and 3 1/4 inches at the rear of the deck.
Caster Pivot Bearings
Pre-load Adjustment
Remove dust cap from caster and tighten nyloc nut
until washers are flat. Back the nyloc off 1/4 of a
turn to properly set the pre-load on the bearings.
Note:
If disassembled, make sure the spring washers
are reinstalled as shown in Figure 16.
Figure 16
1. Spring disc washers
Deck Locking Pin Stop
Adjustment
1. Slide deck locking pins in on both sides and rotate
to lock the deck in the “operation” position.
2. Loosen the jam nut and turn the stop screw
clockwise until the locking pins is tight and cannot
be rotated by hand (Figure 17).
Figure 17
1. Rotate stop screw clockwise until locking pin is tight,
then back off 1/2 turn.
2. Loosen jam nut
3. Loosen the stop screw counter clockwise 1/2
turn and tighten the jam nut
4. Test the locking pin to make sure it slides freely.
Readjust if necessary.
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