Removing The Cutting Unit; Cutting Height - Fixed Mode - Jacobsen Tri King 1900 Series Dealer's Manual

5 ADJUSTMENTS

5.17 REMOVING THE CUTTING UNIT _____________________________________________

1. To prevent contamination of the hydraulic system, as
well as loss of oil, do not disconnect the hoses from
the motor.
!
CAUTION
Disconnect lift springs before removing mowers.
2. Raise and lock the lift arms in transport mode
(Section 3.4) and disconnect the down pressure
springs.
3. Remove transport pin then lower the lift arms to the
ground.

5.18 CUTTING HEIGHT - FIXED MODE ____________________________________________

Follow the procedures outlined in Section 5.16.
1. Reposition the rear roller adjuster.
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 the height adjuster
(F) as shown.
b. For cutting heights greater than 1-3/4 inches
(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 the adjuster (F).
2. Remove the tether, and lower the cutting units to the
ground.
3. Place spacers of the desired height (J) under each
end of the reel, adjacent to the front edge of the
bedknife.
4. Loosen nut (G) and lower rear roller to the ground.
Tighten nut (E) against the adjuster then recheck
the setting on both side of the reel. Readjust if
necessary.
5. Assemble the front roller adjuster (B) (If a roller is
required) to holes number 2 and 4 only of the
mower frame. Do not use holes number 1 and 3.
Set roller to 1/4 in. (6 mm) above rear roller.
22
4. Remove hardware securing motor to drive housing
and carefully pull the motor away.
5. Place motor in a clean plastic bag and cover the
opening in the gear box.
6. Remove pin and collar from center (rear) lift arm
and pull the center cutting unit away from the
mower.
7. Remove the hardware securing the front lift arms to
the cutting units, and slide the mowers out of the
way.
G
N
F
M
N
E
M
G
F
E
B
5
6
1
2
7
3
8
4
Figure 5Q
J
Figure 5R
U
T
S
R
A
B