Cutting Height; Belt Adjustment - Jacobsen Greens King 500A Series Technical Manual

7 ADJUSTMENTS
7.6

CUTTING HEIGHT _________________________________________________________

Note: Make sure the bedknife is properly adjusted before
setting the cutting height. (See Section 7.4)
1. Push kickstand down and tip mower back on it's han-
dle. Do not leave the mower tipped back for an
extended length of time or oil may migrate into the
combustion chamber.
2. Loosen nuts (M) on both sides just enough to allow
knob (L) to raise the front roller or Turf Groomer.
Raise both sides an equal amount.
3. Set gauge screw (P) to the desired cutting height
(O). Measure from the gauge bar (N) to the
underside of the screw head (P) then tighten wing
nut to lock the adjustment.
4. Place gauge bar between front roller and traction
roller, near the outer end of the rollers.
5. Slide screw head over bedknife (Q) and adjust knob
(L) so roller just contacts the gauge bar. Tighten nut
(M).
7.7

BELT ADJUSTMENT _______________________________________________________

1. Belt (A) is tensioned by a spring loaded idler pulley
(F). No adjustment is necessary.
NOTICE
To prevent permanent damage to the belt, do not
twist, fold, bend or overtighten the belt.
2. To adjust belt (B) or (C), loosely assemble 5/16-18 x
3-1/4" hex head screw (K) through tension bracket
(P), bearing bracket and 5/16-18 hex nut (N).
Assemble 5/16-18 x 1" hex head screw (L) and 5/
16-18 hex nut (N) to bottom of bearing bracket (G).
Loosen nuts (E).
a. Place bedknife gauge bar (H) on top of roller and
under screw (L). Tighten screw (L) until belt (B)
deflects 1/10" (2.5 mm) with 12.2 ~ 15.2 lb (5.5 ~
7.4 kg) load applied at mid span.
b. Tighten screw (K) until belt (C) deflects 9/64" (3.5
mm) with 3.5 ~ 6.3 lb (1.59 ~ 2.86 kg) load
applied at mid span.
c. Tighten nuts (E) and remove 5/16-18 x 1" screw
(L) and lower nut (N).
Note: 5/16-18 x 3-1/4" screw (K) and upper nut (N)
can be left in place after the adjustment procedure
is complete without affecting operation.
3. Place hardware (L and N) in a safe place for future
adjustments.
24
6. Repeat Steps 4 and 5 on the opposite end of the
reel then tighten nuts (M). Recheck and readjust the
cutting height if necessary.
L
M
N
O
F
A
N
K G
M
L
H
Q
P
Figure 7E
E
D
B
C
F
Figure 7F