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Cutting Unit Maintenance
Blade Safety
•
A worn or damaged blade or bedknife can break,
and a piece could be thrown toward you or
bystanders, resulting in serious personal injury or
death.
•
Inspect the cutting units periodically for excessive
wear or damage.
•
Use care when checking the cutting units. Wrap
the blades or wear gloves, and use caution when
servicing the reels and bedknives. Only replace or
sharpen the reels and bedknives; never straighten
or weld them.
•
On machines with multiple cutting units, take care
when rotating a reel; it can cause the reels in the
other cutting units to rotate.
Backlapping the Cutting
Units
WARNING
Contact with the reels or other moving parts
can result in personal injury.
• Keep your fingers, hands, and clothing
away from the reels or other moving parts.
• Never attempt to turn the reels by hand or
foot while the engine is running.
Note:
When backlapping, the front units all operate
together, and the rear units operate together.
1.
Park the machine on a level surface, lower the
cutting units, engage the parking brake, shut
off the engine, and move the PTO switch to the
O
position.
FF
2.
Unlock and raise the hood to expose the
controls.
3.
Make initial reel-to-bedknife adjustments
appropriate for backlapping on all cutting units
which are to be backlapped; refer to the cutting
unit Operator's Manual.
4.
Select either front, rear, or both backlap levers
to determine which units to backlap
5.
Start the engine and run at low idle speed.
Changing the engine speed while
backlapping may cause the reels to stall.
• Never change the engine speed while
• Backlap only at low idle engine speed.
Contact with the cutting units could
cause personal injury.
Be certain that you are clear of the
cutting units before proceeding.
6.
With the mow-speed limiter in the M
move the PTO switch to the O
7.
Press the lift switch to start the backlapping
operation on the designated reels.
8.
Apply lapping compound with a long-handled
brush.
Note:
1. Front-backlap lever
9.
If the reels stall or become erratic while
backlapping, increase the throttle speed until
the reel stabilizes.
(Figure
83).
10.
To make an adjustment to the cutting units while
backlapping, turn the reels off by pressing the
rear of the lift switch; move the PTO switch to
the O
completing any adjustments, repeat steps
through 9.
59
DANGER
backlapping.
DANGER
Do not use a short-handled brush.
Figure 83
2. Rear-backlap lever
position and shut off the engine. After
FF
position,
OW
position.
N
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