Jacobsen AR-3 - Radiator;Hydraulic Oil Cooler

ENGINE
4181384 First Edition 3-13
3
Figure 3-20
10. Support the exhaust manifold/turbocharger assembly
(21).
11. Remove six nuts (22) and lock washers (23), and
remove exhaust manifold/turbocharger assembly
(21) and gasket (24).
Installation Notes
• Install the exhaust manifold/turbocharger assembly
by reversing the order of removal.
• Use new gaskets during installation.
Radiator/Hydraulic Oil Cooler
Removal and Installation
See Figures 3-21 through 3-24.
NOTE
Turbocharged engine shown; naturally aspirated engine
is similar.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-7.)
2. Raise the hood.
!
WARNING
3. Drain cooling system.
4. Drain hydraulic system.
Figure 3-21
NOTE
Label all hoses before removing to ensure correct
installation.
5. Loosen hose clamp (2), and disconnect hose (3)
from radiator/hydraulic oil cooler (1).
6. Loosen hose clamp (6), and disconnect hose (4)
from radiator/hydraulic oil cooler (1).
7. Disconnect hydraulic hose (5) from radiator/hydraulic
oil cooler (1).
Engine coolant is hot and under pressure! Allow
the cooling system to cool completely before
performing service.
Rotate the filler cap 1/2 turn counterclockwise
and allow pressure to vent before removing filler
cap.
TN1167
21
24
22
23
4
TN1192
3
1
6
5
2