
1
Newspaper
2
Back lapping powder
3
Gel compound
4
Brush
Note:
The mixing ratio for the abrasive, in volume,
is one part back lapping powder (#150 -
#200) to three or four parts oil.
Caution
When handling the reel cutter (cutting
cylinder) and the bed knife (bottom blade),
wear gloves to protect your hands.
Pay attention not to let the reel cutter (cutting
cylinder) catch your gloves. Otherwise, you
may injure your hand or fingers.
Important
Check the sharpness of the blade by checking
the blade engagement after cutting grass.
Raise all the mower units.
Stop the engine.
Set the reel rotation/stop switching lever to
the "Stop" position.
1
B
A
B
2f8equ-004
Back Lapping_002
1
Reel rotation/stop switching lever
A
Stop
B
Rotate
Insert two or three strips of newspaper into
the space between the reel cutter (cutting
cylinder) and the bed knife (bottom blade) at
an angle of 90 degrees. Then, rotate the reel
cutter (cutting cylinder) counter-clockwise
(when you face the mower unit from the left)
by hand to check the sharpness of the
blades.
2.
3.
4.
5.
Check the sharpness of the entire range
(three or four points) of the reel cutter
(cutting cylinder).
Using a piece of chalk, mark locations on the
blade that are sharp.
Shift the reel rotation/stop switching levers of
the hydraulic motors in the mower units to be
used for back lapping to the "Rotate"
position.
Shift the levers for the mower units for which
you will not perform back lapping to the
"Stop" position.
Sit on the seat, apply the parking brake, and
then start the engine.
Note:
If the reel rotation switch is set to the
"Rotation" position, the engine will not start.
Lower all mower units to the ground.
Open the hood, and then set the reel reverse
switch to the "Reverse" position.
Run the engine at a low rpm.
Set the reel rotation switch to the "Rotation"
position to rotate the reel cutters (cutting
cylinders) for back lapping.
With the reel rotation/stop switching lever,
adjust the rotation speed of the reel cutter
(cutting cylinder).
Apply the abrasive evenly with the brush on
the top side of reel cutter (cutting cylinder)
where the newspaper was cut well or of
chalk-marked locations. (Never apply to
blunt areas.)
Idle the engine for a while, and when contact
noise is no longer heard, set the reel rotation
switch to the "Stop" position to stop the reel
cutters (cutting cylinders).
Raise all mower units.
Stop the engine.
Wash off or wipe off with a cloth, etc., the
abrasive from the reel cutter (cutting
cylinder), and then check it for sharpness.
Repeat steps 4 to 19 until the entire range
(three or four points) of the reel cutter
(cutting cylinder) is uniformly sharpened.
Lower all the mower units to the ground.
Finally, apply abrasive to the entire blade
width of the reel cutter (cutting cylinder) and
perform final back lapping.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
LM3210A
Maintenance
Page 6-20
Adjustment and Replacement
Содержание LM3210A
Страница 6: ...LM3210A Introduction...
Страница 8: ...LM3210A Contents...
Страница 14: ...LM3210A Safety Page 1 6 Safe Operating Practices...
Страница 36: ...LM3210A Product Overview Page 3 20 Operation Decals...
Страница 80: ...LM3210A Description of Functions Page 4 44 Engine...
Страница 134: ...LM3210A Maintenance Page 6 34 Storage...
Страница 166: ...LM3210A Appended Table Page 8 26 List of Fault Codes...