Toro Multi Pro 1750 Service Manual page 35

Removal (Fig. 10)
CAUTION
The muffler and exhaust manifold may be hot. To
avoid possible burns, allow the engine and ex-
haust system to cool before working on the ex-
haust system.
Removing the spray tank is not necessary but will make
removing the exhaust system easier (see Spray Tank
Removal in Chapter 6 − Spray System in this manual).
1. Park machine on a level surface, stop engine and en-
gage parking brake. Remove key from ignition switch
and allow engine and exhaust system to cool.
2. Remove the muffler from below the machine:
A. Loosen or remove muffler clamp (item 4) that se-
cures muffler to exhaust pipe and hanger bracket
(item 7).
B. Support muffler to prevent it from unexpectedly
shifting.
C. Remove fasteners that secure two (2) muffler
clamps (item 4) to muffler mount (item 11).
D. Slide muffler from exhaust pipe (item 5) and re-
move from machine.
E. If necessary, remove remaining muffler mounting
components from machine.
3. Remove muffler clamp (item 4) that secures exhaust
pipe to exhaust manifold (item 3).
4. Slide exhaust pipe from exhaust manifold and re-
move from machine.
5. Remove four (4) flange nuts from the exhaust studs
on engine. Remove exhaust manifold from the engine.
6. Remove and discard exhaust gaskets from engine.
Multi Pro 1750
Installation (Fig. 10)
NOTE: Make sure engine and exhaust manifold seal-
ing surfaces are free of debris or damage that may pre-
vent a tight seal.
IMPORTANT: Finger tighten all exhaust system fas-
teners before fully tightening so there is no preload
on exhaust components.
1. Place new exhaust gaskets on the exhaust studs on
engine. Position exhaust manifold to the engine and
install four (4) flange nuts finger tight.
2. Install exhaust pipe and muffler clamp (item 4) that
secures exhaust pipe to exhaust manifold.
3. Install the muffler:
A. Install all removed muffler mounting components
to machine.
B. Slide muffler inlet onto exhaust pipe.
C. Secure two (2) muffler clamps to muffler mount
(item 11) with removed fasteners.
D. Install muffler clamp to hanger bracket (item 7).
4. Tighten exhaust system fasteners starting at the en-
gine and continuing toward the muffler outlet as follows:
A. Four (4) flange nuts that secure exhaust manifold
to engine.
B. Fasteners to secure muffler hangers (item 7) to
machine frame. Muffler hangers should be perpen-
dicular to frame after tightening.
C. Muffler clamp (item 4) fasteners at hanger.
D. Fasteners at two (2) muffler clamps that secure
muffler to muffler mount (item 11).
5. Install the spray tank assembly if previously re-
moved (see Spray Tank in Chapter 6 − Spray Tank in this
manual).
Page 3 − 17 Kohler Gasoline Engine