9
hydraulic motors have been mounted and the belts
tightened, loosen swivel nuts at the motor and reposition
hoses. This can greatly increase the life of the hoses. With
cutting units down, all cutting unit hoses should have a
flat natural lay and be free from twist.
6. Tighten tipper bracket clamps on #4 and #5 cutting
units (Fig. 7).
Note: Refer to the Traction Unit Operator’s Manual for
instructions on setting the adjustable hydraulic
counterbalance, if so equipped.
Before adjusting reel to bedknife, raise and fully
latch cutting units. Remove key from the ignition
switch. Keep others off machine while adjusting
cutting units.
Caution
Adjusting the Reel to Bedknife
Contact
Before adjusting height-of-cut and each day before
operating, check reel to bedknife contact, regardless if
quality of cut had previously been acceptable.
Note: A 3/4 in. wrench is required for making the reel to
bedknife adjustment.
1. Slowly and carefully rotate the reel, listening for light
contact across the full length of the reel and bedknife.
2. If there is no contact, loosen the adjuster locking nut
on each adjuster (Fig. 13). Then, equally turn each
adjuster knob clockwise until light contact is felt and
heard.
1
2
Figure 13
1.
Adjuster locking nut
2.
Adjustment knob
3. If there is excessive contact, turn the adjusting knobs
counterclockwise until no contact is noticed. Then
equally turn both adjusting knobs clockwise, until light
contact is felt and heard between the reel and
bedknife. Final adjustment should always be in the
tightening (clockwise) direction.
4. Tighten adjuster locking nuts when completed making
adjustments.
Sharp edges on the cutting units can cut or pinch
hands or fingers.
•
When adjusting the cutting units, wear heavy
gloves.
•
Use care when turning the reels by hand.
Caution
Important
Adjusted correctly, the reel will cut paper
(approx. .03 in. thick) across its entire length.
The cutting units will provide optimum mowing
performance when adjusted and maintained correctly.
Keeping a precise reel to bedknife adjustment (light
contact), at each end of the cutting unit will produce a
continual self-sharpening action. Therefore, sharp cutting
edges are maintained, good quality of cut ensured, and the
need for corrective re-sharpening reduced.
Important
Cutting units with excessive contact
between the reel and bedknife are noisy, consume
excessive power, shorten component life and result in
overall poor performance. Light contact between the reel
and bedknife, once the cutting unit is warmed up, provides
optimum mowing performance and component life.
Adjusting the Height-of-Cut for
a Floating Cutting Unit
Adjusting the Reel to Bedknife Contact
Adjust reel to bedknife contact on all cutting units. Refer
to Adjusting the Reel to Bedknife Contact, page 9.
Leveling the Rear Roller to the Reel
1. Start engine and lower the cutting units onto a flat
surface such as a piece of 3/4 in. or 1 in. plywood (at
least 20 in. x 30 in. in size). Stop engine and remove
key from switch. Lock cutting units in the fixed
position, by loosening the jam nut on lockout pin
(Fig. 14) and screwing pin into hole in pivot arm
(Fig. 15). Tighten nut to secure lockout. Raise the
front rollers up so they do not contact the flat surface.
