Toro Groundsmaster 4500-D Series Service Manual page 101

Removal (continued)
Installation
Groundsmaster ® 4500-D/4700-D
19245SL Rev A
The muffler and exhaust pipe may be hot. To avoid possible burns,
allow the engine and exhaust system to cool before working on the
exhaust system.
1. Raise and support hood to gain access to exhaust system. Allow engine
and exhaust to cool before doing any disassembly of exhaust system
components.
2. Remove exhaust system components from the engine as necessary using
Figure 24 and Figure 25
and 15 in Figure 24
Note: Make sure that all exhaust system flanges and sealing surfaces are free
of debris or damage that may prevent a tight seal.
1. Make sure to install new gaskets in place of all gaskets that were removed.
Do not use any type of gasket sealant on gasket or flange surfaces.
2. Assemble all removed exhaust system components using
Figure 25 as guides.
A. If exhaust sensors (items 7 and 8 in
sensors from 25 to 40 N·m (19 to 29 ft−lb).
B. If exhaust pressure pipes (items 26 and 28 in
replace sensor gaskets (item 27) on both sides of the pressure pipe fitting.
C. If DPF stiffeners (items 18, 19, 20 and 21 in
or removed, tighten fasteners that secure stiffeners before tightening
fasteners that secure exhaust system to DPF stays.
CAUTION
as guides. Discard all removed gaskets (items 1
or item 6 in Figure 25).
Figure
Page 4–29 Yanmar Diesel Engine: Service and Repairs
Figure 24 and
24) were removed, torque
Figure 24) were removed,
Figure 24) were loosened