Cutting Unit Maintenance; Cutting Unit Safety; Backlapping The Cutting Units - Toro Reelmaster 03781 Operator's Manual

Cutting Unit Maintenance

Cutting Unit Safety

A worn or damaged cutting unit can break, and a piece of
a reel or bedknife could be thrown at you or bystanders,
resulting in serious personal injury or death.
•
Inspect the cutting units periodically for 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 multi-bladed machines, take care as rotating 1 reel can
cause other blades to rotate.

Backlapping the Cutting Units

WARNING
Contact with the reels or other moving parts can
result in personal injury.
• Keep 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
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.
DANGER
Changing the engine speed while backlapping
may cause the reels to stall.
• Never change the engine speed while
backlapping.
• Only backlap at low idle engine speed.
DANGER
Contact with the cutting units could cause
personal injury.
Be certain that you are clear of the cutting
units before proceeding.
position.
FF
(Figure 81).
58
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: Do not use a short-handled brush.
Figure 81
1. Front-backlap lever
9. If the reels stall or become erratic while backlapping,
increase the throttle speed until the reel stabilizes.
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
position and shut off the engine. After completing any
adjustments, repeat steps
11. Repeat the procedure for all cutting units that you want
to backlap.
12. When finished, return the backlap levers to the
M position, lower the hood, and wash all lapping
OW
compound off the cutting units. Adjust the cutting
unit reel-to-bedknife as needed. Move the cutting unit
reel-speed controls to the desired mowing position.
Important: If you do not return the backlap
switch to the O position after backlapping, the
FF
cutting units will not raise or function properly.
Note: Additional instructions and procedures on
backlapping are available in the Toro Sharpening Reel and
Rotary Mowers Manual, Form No. 80-300SL.
Note: For a better cutting edge, run a file across
the front face of the bedknife after lapping. This will
remove any burrs or rough edges that may have built
up on the cutting edge.
position,
OW
position.
N
g015076
2. Rear-backlap lever
FF
5 through 9.