Bedknife Adjustment; Cutting Height - Jacobsen Greens King IV Handbuch

4 ADJUSTMENTS
4.3

BEDKNIFE ADJUSTMENT __________________________________________________

1. Read Section 4.2 before making the adjustment.
2. Start adjustment at the leading end of the reel,
followed by the trailing end. The leading end of the
reel blades is that end which passes over the
bedknife first during normal reel rotation.
!
CAUTION
To prevent personal injury and damage to the cutting
edges, handle the reel with extreme care.
3. Use adjusters (A and B), to adjust gap. Loosen
bottom adjuster (B) and turn top adjuster (A) down
(Clockwise) to close gap.
a. Slide a feeler gauge or shim stock 0.001 - 0.003
in. (0.025 - 0.076 mm) between the reel blade
and the bedknife. Do not turn the reel.
b. Adjust the trailing end of the reel to the same
gap in a similar manner then recheck the
adjustment at the leading end.
4.4

CUTTING HEIGHT _________________________________________________________

Note: Always make the bedknife to reel adjustment
before adjusting height of cut. (See Sections 4.2 and
4.3).
1. Raise mowers to transport position then engage the
parking brake, stop engine, and remove key from
ignition switch.
2. Set desired cutting height on the gauge (I).
a. Measure distance (J) between the underside of
screw head and gauge block surface.
b. Adjust screw (F) to obtain desired height then
tighten the wing nut.
3. Loosen the locknuts on the front roller brackets (E)
just enough to allow the adjuster knob (H) to raise or
lower the front roller.
4. Place gauge (I) across bottom of front and rear
rollers near one end of roller.
5. Slide the head of gauge screw over the bedknife (G)
and adjust the knob (H) to close the gap between the
screw head and bedknife. Then tighten locknut (E).
6. Repeat Steps 4 and 5 on opposite end. Complete
adjustment to one end before adjusting opposite end.
7. Tighten locknuts (E) and recheck each end.
16
c. When the reel is properly adjusted to the
bedknife, the reel will spin freely and you should
be able to cut a piece of newspaper, along the
full length of the reel, when the paper is held at
90° to the bedknife.
Note: Avoid excessive tightening or serious damage may
result to bedknife and reel blades. Reels must turn freely.
H
E
I
A
B
Figure 4C
F
G
J
Figure 4D