This kit is intended for use on Jacobsen HR-5111™,
R-311™, and R-311T™mowers.
1. Park the mower on a flat and level surface, lower cutting
units to the ground, disengage all drives, engage the
parking brake, turn the ignition switch to the OFF
position, and remove the key.
a. Wait for all movement to stop before making any
adjustments or modifications.
b. Allow sufficient time for the unit to cool down.
c. Take this opportunity to thoroughly inspect the
equipment and perform other required maintenance.
Front Deck _______________________________________________________________________
1. Fully raise all three decks. Stop engine. Engage wing
deck latches.
2. Note location and remove height of cut pins (F) from front
deck and with the help of another person, carefully lift
deck to a perpendicular position.
3. Insert height of cut pin (F) through hole (G) and into left
front lift arm to pin deck in service position.
4. Start engine and lower front deck to the ground. Stop
engine and remove ignition key.
5. Remove and discard hardware (A) and baffle (B) from
front deck.
6. Assemble front mulcher baffle (Item 1) to front deck
using front two holes (C). Secure using two 5/16-18 x 5”
screws (Item 3), four flat washers (Item 4), and two nylon
insert nuts (Item 5).
7. Using hardware tubes (D) in mulcher baffle as a guide,
mark location for two new holes (E).
8. Remove mulcher baffle and carefully drill two 11/32 in. (9
mm) holes (E) in front deck. Remove any burrs and paint
any exposed metal with high quality Jacobsen orange
paint.
9. Secure front mulcher baffle (Item 1) to front deck using
four 5/16-18 x 5” screws (Item 3), eight flat washers
(Item 4), and four nylon insert nuts (Item 5).
10.Start engine and fully raise front deck. Stop engine.
Remove pin (F) from left front lift arm and, with the help
of a second person, slowly lower front deck until deck is
resting against lift arms.
11.Install height of cut pins (F) in correct set of holes. Start
engine and lower front deck.
Figure 1
CAUTION
Before you install this kit, read the mower’s manual to
become familiar with the vehicle, the controls, and
proper use of the equipment.
Stay alert for potential hazards and follow all safety
precautions. Read all instructions completely and
make sure you understand them before proceeding
with the assembly.
WARNING
Before you attempt to clean, adjust, or repair any of
this equipment, lower cutting units to the ground,
disengage all drives, shut down the mower, and allow
the unit to cool. Remove the key from the ignition
switch and disconnect the power connector to prevent
accidental discharge and potential bodily injuries.
1
33
33
44
44
4
4
4
4
55
5
5
A
A
B
CC
G
D
D
E
FF
F
E
INSTRUCTION SHEET
Mulcher Kit 69174
Litho in U.S.A. 6-2011 Part No. 4236101-Rev A
