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Clean all parts thoroughly as engine is disassembled.
Only clean parts can be accurately inspected
and gauged for wear or damage. There are many
commercially available cleaners that will quickly remove
grease, oil, and grime from engine parts. When such a
cleaner is used, follow manufacturer’s instructions and
safety precautions carefully.
Make sure all traces of cleaner are removed before
engine is reassembled and placed into operation. Even
small amounts of these cleaners can quickly break down
lubricating properties of engine oil.
Disconnect Spark Plug Leads
NOTE: Pull on boot only, to prevent damage to spark
plug lead.
Disconnect leads from spark plugs.
Drain Oil from Crankcase and Remove Oil Filter
NOTE:
Some models are equipped with an oil drain
valve.
1. Remove
oil
fi
ll cap/dipstick, and 1 oil drain plug.
2. Allow ample time for oil to drain from crankcase and
oil
fi
lter.
3. Remove mounting screw and detach oil
fi
ll tube.
4. Remove and discard oil
fi
lter.
Remove Oil Cooler
1. Use an 8 mm Allen wrench to remove oil
fi
lter
threaded nipple.
2. Separate
fi
lter adapter from oil pan, leaving oil lines
attached. Remove screws mounting oil cooler to
blower housing, then remove cooler, lines, and
fi
lter
adapter as an assembly.
Remove Muf
fl
er
Remove exhaust system and attaching hardware from
engine. On engines equipped with a port liner, remove it
now.
Remove Electronic Governor (ECV EFI) (if equipped)
NOTE: Removal of debris screen guard may be needed
to remove GCU bracket.
NOTE: If not replacing GCU or DLA, remove GCU
bracket with GCU and DLA attached.
1. Remove screws securing GCU to GCU bracket.
2. Pull GCU away from bracket and remove connector
from GCU. Route connector back through bracket.
3. Disconnect link clip from outboard end of DLA;
remove spring and linkage.
4. Remove connector from DLA.
5. Remove screws securing DLA to bracket.
6. Remove screws attaching DLA bracket to GCU
bracket.
7. Remove screws securing GCU bracket to air cleaner
bracket.
Remove Air Cleaner Assembly
Heavy-Duty Air Cleaner
1. Remove nuts securing air cleaner to mounting studs.
2. Remove screws securing air cleaner assembly to air
cleaner bracket and remove air cleaner assembly.
Low-Pro
fi
le Air Cleaner (Optional)
1. Loosen retaining knob and remove cover.
2. Remove wing nut from element cover.
3. Remove element cover, element and precleaner.
4. Remove nuts securing base. Additional screws must
be removed from lower air cleaner support bracket.
5. Remove
base.
Control Panel Components (Mechanical Governor)
E
A
C
B
D
A
Top Mount
Control Panel
B
Throttle Control
Shaft
C
Governor Lever
D
Governor Lever
Spring
E
Lower Throttle
Control Bracket
Remove Top Mount Control Panel
1. Remove throttle control shaft nut on top of throttle
shaft and remove throttle control lever and spring.
2. Remove screws fastening control panel and remove
panel from blower housing.
3. Remove lower throttle control bracket from cylinder
head.
Remove Bottom Mount Control Panel (if equipped)
1. Remove governor lever spring.
2. Remove screws fastening throttle panel and remove
panel from cylinder heads.
Disassembly/Inspection and Service
98
24 690 02 Rev. H
KohlerEngines.com
Summary of Contents for Command PRO CV26
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