6
Daily Adjustments of Cutting
Unit
Prior to mowing each day, or as required, each cutting unit
must be checked to verify proper bedknife-to-reel contact.
This must be performed even though quality of cut is
acceptable.
1. Lower the cutting units onto a hard surface, shut off the
engine, and remove the ignition key.
2. Slowly rotate the reel in a reverse direction, listening
for reel-to-bedknife contact. If no contact is evident,
turn the bedknife adjusting knob clockwise, one click at
a time, until light contact is felt and heard.
Note: The adjustment knob has detents corresponding to
0.0007 in. (0.018 mm) bedknife movement for each
indexed position.
3. If excessive contact is felt, turn the bedknife adjusting
knob counterclockwise, one click at a time until no
contact is evident. Then turn the bedknife adjusting
knob one click at a time clockwise, until light contact is
felt and heard.
Important
Light contact is preferred at all times. If
light contact is not maintained, the bedknife/reel edges will
not sufficiently self-sharpen and dull cutting edges will
result after a period of operation. If excessive contact is
maintained, bedknife/reel wear will be accelerated, uneven
wear can result, and quality of cut may be adversely
affected.
Note: As the reel blades continue to run against the
bedknife, a slight burr will appear on the front cutting edge
surface along the full length of the bedknife. If a file is
occasionally run across the front edge to remove this burr,
improved cutting can be obtained.
After extended running, a ridge will eventually develop at
both ends of the bedknife. These notches must be rounded
off or filed flush with the cutting edge of the bedknife to
ensure smooth operation.
Maintenance
Note: Determine the left and right sides of the machine
from the normal operating position.
Greasing the Bearings and
Bushings
Each cutting unit has 7 grease fittings that must be
lubricated regularly with No. 2 General Purpose Lithium
Base Grease.
The grease fitting locations and quantities are:
•
Adjusting knob pivot point (Fig. 6)
•
Reel bearings (2) (Fig. 6)
•
Front and rear rollers (2 ea.) (Fig. 6)
Important
Lubricating the cutting units immediately
after washing helps purge water out of the bearings and
increases bearing life.
1. Wipe each grease fitting with a clean rag.
2. Grease the reel bearings (Fig. 6) until grease comes out
of the pressure relief.
3. Grease the front and rear roller bearings (Fig. 6) until
grease begins to show around the seal lips.
4. Grease the adjusting pivot point (Fig. 6).
Important
Do not apply too much pressure or the
grease seals will be permanently damaged.
1
Figure 6
1.
Pressure relief
5. Wipe excess grease away.
