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Rev. A
Groundsmaster 4000--D Page 3 -- 7 Kubota Diesel Engine
Removal (Fig. 5)
CAUTION
The muffler and exhaust pipe may be hot. To
avoid possible burns, allow the engine and ex-
haust system to cool before working on the muf-
fler.
1. Park machine on a level surface, lower cutting
decks, stop engine, apply park ing brake and remove
key from the ignition switch.
2. Raise and support hood.
3. Remove exhaust system components from the en-
gine as necessary using Figure 5 as a guide.
Installation (Fig. 5)
IMPORTANT: If exhaust studs were removed from
engine cylinder head, thoroughly clean threads in
head and apply Loctite #277 (or equivalent) to stud
threads before installing studs into head.
NOTE: Make sure muffler flange and exhaust manifold
sealing surfaces are free of debris or damage that may
prevent a tight seal.
1. Install new exhaust gasket if original gasket is dam-
aged or torn.
IMPORTANT: Failure to follow the suggested muf-
fler fastener sequence may result in premature muf-
fler failure.
2. Install exhaust system components to the engineus-
ing Figure 5 as a guide. Hand tighten exhaust system
fasteners and then torque in the sequence shown in Fig.
6 as follows:
A. Torque lock nuts used on rubber hanger cap
screws from 16 to 22 ft--lb (21 to 29 N--m).
B. Torque flange nuts that secure muffler to muffler
bracket from 16 to 22 ft--lb (21 t o 29 N--m).
C. Torque flange head screws that secure muffler
flange to engine from 16 to 22 ft--lb (21 to 29 N--m).
D. Torque flange nuts that secure muffler bracket to
engine from 16 to 22 ft-- lb (21 to 29 N--m).
E. Torque flange screws that secure exhaust mount
to engine to 1 3 f t -- l b ( 1 7 . 6 N -- m ) .
3. Tailpipeshould have equal clearancebetweenframe
and engine after installation.
4. Lower and secure hood.
Figure 6
B
D
C
A
E
Kubota
Diesel Engine