Bedknife Adjuster; Bedknife; Brake - Jacobsen Greens King 500A Series Technical Manual

7.3

BEDKNIFE ADJUSTER _____________________________________________________

1. Adjuster (A) is used to increase or decrease the
spring load on the bedknife. Adjuster (B) is used to
move the bedknife to the reel or away from the reel.
2. Once the spring is totally collapsed as a result of
many adjustments, the bedknife cannot be moved.
Back-off adjuster (A) before adjusting (B).
3. For most applications, compress the spring to 1 in.
(25 mm).
7.4

BEDKNIFE _______________________________________________________________

1. Read Section 7.2 before making the adjustment.
2. Start adjustment at the leading edge of the reel,
followed by the trailing end. The leading end of the
reel blade is the end that passes over the bedknife
first during normal rotation.
Leading Edge
!
CAUTION
To prevent personal injury and damage to the cutting
edges, handle the reel with extreme care.
7.5

BRAKE __________________________________________________________________

A properly adjusted brake requires 10 lb. pull at top of
brake lever to engage and must have 1.50 in. (38 mm)
center to center when released.
1. Minor adjustments are made at the handle. Loosen
nut (H), turn nut (J) to adjust the brake cable, then
tighten nut (H).
2. If adjustments cannot be made at the handle,
remove the transport
adjustment at the brake band.
3. Loosen screw (K) and pull cable to obtain desired
brake tension. Tighten screw (K). Readjust (H) and
(J).
Rotation
Figure 7C
wheel, and make the
B
3. Turn adjuster (B) clockwise to bring the bedknife
closer to the reel or counterclockwise to back the
bedknife away from the reel.
a. Slide a feeler gauge or shim stock 0.001 - 0.003
in., (0.025 - 0.075 mm) between the reel blade
and the bedknife. Do not turn the reel.
b. Adjust the trailing end of the reel in the same
manner, then recheck the adjustment at the
leading end.
c. When the reel and bedknife are properly
adjusted, the reel will spin freely, and will cut a
piece of newspaper along the full length of the
reel when the paper is held at 90° to the
bedknife.
H
J
ADJUSTMENTS
A
Figure 7B
K
Brake Band
Figure 7D
7
1.50 in.
(38 mm)
23