Hayter RT380H, Руководство оператора

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3. Remove the bolt (5/8 inch wrench), curved washer,
retainer, and blade (Figure 46). Use a block of wood
as a wedge between the blade and the cutter deck to
lock the blade when you are removing the bolt.
Figure 46
1. Bolt 4. Spindle
2. Retainer 5. Curved washer
3. Blade
4. Inspect all parts; replace any parts that are damaged.
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of
each blade (Figure 47). Maintain the original angle.
The blade retains its balance if you remove the same
amount of material from both cutting edges.
Figure 47
1. Sharpen at original angle
2. Check the balance of each blade by putting it on
a blade balancer (Figure 48). If the blade stays in a
horizontal position, the blade is balanced and can be
used. If the blade is not balanced, file some metal
off of the back side of the blade. Repeat this step
until the blade is balanced.
Figure 48
1. Blade 2. Balancer
Installing the Blades
1. Install each blade, blade retainer, curved washer
(cupped side toward blade), and the blade bolt
(Figure 46).
Important:
The curved part of the blade must
be pointing toward the inside of the cutter deck
to ensure proper cutting.
2. Tighten the blade bolt to 45 to 60 ft-lb (61 to 81
N
⋅
m).
Removing the Cutter Deck
1. Park the tractor on a level surface.
2. Disengage the blade control (PTO) and set the
parking brake.
3. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
4. Move the height-of-cut lever into the “D” notch.
5. Remove the height-of-cut lift assist spring from the
retaining bolt (Figure 49). The spring is between the
frame and the right rear wheel.
Figure 49
1. Spring 3. Spring tool
2. Bolt
Note:
Use the spring tool provided with the
machine.
When you remove the cutter deck, the
spring-tensioned height-of-cut lever could
suddenly release and injure you or someone
else.
Move the height-of-cut lever to the “D” position
and remove the height-of-cut assist spring to
release the spring tension.
6. Move the height-of-cut lever into the “A” notch.
7. Unhook the spring on the idler pulley arm from the
bracket on the cutter deck (Figure 50).
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