Cutting Height - Floating Mode; Deflector - Jacobsen LF 3810 Dealer's Manual

4.19 CUTTING HEIGHT - FLOATING MODE _________________________________________

1. Assemble the front roller adjuster (B) to mower
frame. Refer to the chart below for correct hole of
front roller adjuster to use.
2. Reposition the rear roller adjusters (F).
a. For cutting heights from 3/8 to 1-3/4 in. (9 to
44 mm) use holes (M) on the mower frame and
two holes (shown in black) of adjuster (F) as
shown.
b. For cutting heights greater than 1-3/4 in.
(44 mm), disassemble adjuster (F) and turn the
mounting bracket upside down; then use holes
(N) of the frame and the two holes (shown in
black) of adjuster (F).
3. Loosen nut (L) and adjust screw (K) to obtain
desired cutting height (X) then lock nut (L) against
gauge (P).
4. Place one end of the gauge under the front roller at
either end of the reel, and slide the head of screw
(K) over the bedknife.
a. Adjust nut (G) to lower the rear roller to the
gauge, then tighten nut (E) against the adjuster.
b. Move the gauge to the other end of the reel and
repeat Steps 4a and 4b.
Range of Cut
Grooved Roller
Inches Millimeters
3/8 - 7/8 10 - 22
7/8 - 1-3/8 22 - 35
1-3/8 - 1-3/4 35 - 44
1-3/4 - 2-1/2 44 - 63

4.20 DEFLECTOR ______________________________________________________________

1. The grass deflectors (Y) need to be adjusted to the
grass conditions.
a. Install the deflectors upwards when mowing damp
grass to prevent accumulation of grass clippings
inside the reel housing.
b. Install the deflectors downwards when mowing dry
grass to prevent discharge from blowing onto
operator or tractor.
2. Deflectors may also be adjusted fore and aft to
regulate grass discharge.
Solid Roller
Inches Millimeters
3/8 - 5/8 10 - 16
5/8 - 1-1/8 16 - 29
1-1/8 - 1-5/8 29 - 41
1-5/8 - 2-1/8 41 - 54
G
F
E
Front Roller
P
R M
S M
T M
U N
Y
ADJUSTMENTS
M
N
M
N
X-Cutting Height
Rear Roller
L
K
4
U
T
B
S
R
Figure 4T
Figure 4U
Figure 4V
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