−38−
12-3 Adjusting the blades
* Proper reel-to-bedknife adjustment is critical.
Caution
●
When you adjust reel-to-bedknife, stop the engine and remove
the ignition key.
1) Set Bypass valve on hydraulic motor to
"Stop" position then reel cylinder will free
rotate. (Refer to 7-19 )
2) Inspect the reel blade and bedknife to
ensure properly engaged. When the reel
blade is proper ly adjusted to the
bedknife, the reel cylinder will spin freely
and you should be able to cut two
sheets of newspaper, along the full
length of the reel blade.
If the cutter adjustment nut is loosened,
contact between the reel and bedknife
become hard, and contact will become
weak if it is tightened.
Cutter adjustment nut
Pipe with the cutter adjustment screw
3) If no newspaper cutting due to wear or damage is evident, the cutting edges should be
corrected by the backlapping process.
4) If the reel cutter is worn out and the diameter becomes small, the tension of the spring
will become weak. Loosen the pipe with the cutter adjustment screw, and adjust the
tension of the spring.
Danger
●
Both the reel cylinder and bed knife are the cutting tools. When
you handle with them, be careful of injury.
●
When you try cutting the newspaper, be careful not to pinch your
fingertip, which turns the reel cutter.
●
Before doing this work, be sure to apply the parking brake firmly.
●
Do not carry out in two-person operation.
12-4 Backlapping
1) Inspect whether the newspaper can cleanly cut across the full length of reel.
2) Set the bypass valve lever of the hydraulic motor into the "Rotation" position on the
backlapping mower unit. Set bypass valve lever of the hydraulic motor into "Stop"
position on the mower unit, which does not carry out backlapping.
3) Lower all the mowing unit to the ground, then stop the engine.
4) Open the hood and reel-reverse-rotation switch to "ON". (Refer to 7-16 )
5) Sit on the seat, engage the parking brake, start the engine and then adjust rotation of
engine to low speed.
6) Set the reel rotation switch into the " Rotation " position, and carry out the backlapping
rotation of the reel blade. (Refer to 7-15 )
7) Adjust reel rotation adjusting valve to the desired speed. (Refer to 7-20 )
8) Apply backlapping compound with brush to the part where a newspaper was cut. (Never
apply backlapping compound to the part where was not cut well.) Use backlapping
compound which is a mixture of oil and emery (#150 - #200) at rate of 1:3 to 4.
9) Rotate the reel cutter for a while, if there is no longer contact sound, stop the rotation,
and then stop the engine.
10) Check full length of the reel cutter whether there are the parts that cut off the newspaper
well, and the parts that don't cut the newspaper. Repeat the above steps and at the
same time, make a slight adjustment on the reel unit there is a uniform clearance along
full length of the cutting edges.
11) Finally apply backlapping compound to full length on the edge of each blabe of the reel
cutter, and carry out final backlapping.
12) When finished, stop the engine and carefully and thoroughly clean off the remaining
backlapping compound.
13) Return the reel rotation adjusting valve to the original position.
Danger
●
Both the reel cylinder and bed knife are the cutting tools. When
you handle with them, be careful of injury.
●
When you try cutting the newspaper, be careful not to pinch your
fingertip, which turns the reel cutter.
●
Before doing this work, be sure to apply the parking brake firmly.
●
Do not carry out in two-person operation.
●
When maintain it, avoid to get exhaust gas directly.
●
Pay attention to the rotating part.
Caution
●
When you wash the abrasive, be careful not to pour water to the
Electrical equipment and the switches.
If they become wet, it may cause unexpected accident.
