8.1
Section 8
Disassembly
8
Section 8
Disassembly
WARNING: Accidental Starts!
Disabling engine. Accidental starting can cause severe injury or death.
Before working on the engine or equipment,
disable the engine as follows: 1) Disconnect the spark plug lead(s). 2) Disconnect negative (-) ba
tt
ery cable from ba
tt
ery.
General
Clean all parts thoroughly as the 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 the
manufacturer’s instructions and safety precautions
carefully.
Make sure all traces of the cleaner are removed before
the engine is reassembled and placed into operation.
Even small amounts of these cleaners can quickly
break down the lubricating properties of engine oil.
Typical Disassembly Sequence
The following sequence is suggested for complete
engine disassembly. The sequence can be varied to
accommodate options or special equipment.
1. Disconnect spark plug leads.
2. Shut o
ff
fuel supply.
3. Drain oil from crankcase and remove oil
fi
lter.
4. Remove mu
ffl
er.
5. Remove cylinder shrouds and blower housing.
6. Remove electric starter motor.
7. Remove air cleaner assembly.
8. Remove control bracket, governor springs, and
lever.
9. Remove carburetor.
10. Remove Oil Sentry™ (if equipped).
11. Remove ba
ffl
es and intake manifold.
12. Remove oil cooler.
13. Remove
oil
fi
lter housing and oil
fi
lter adapter.
14. Remove ignition modules.
15. Remove grass screen and cooling fan
16. Remove
fl
ywheel.
17. Remove stator, recti
fi
er-regulator, and wiring
harness.
18. Remove backing shroud assembly.
19. Remove spark plugs.
20. Remove valve covers and fuel pump.
21. Remove cylinder heads and hydraulic li
ft
ers.
22. Disassemble cylinder heads.
23. Remove breather assembly.
24. Remove oil reservoir and pickup screen.
25. Remove closure plate assembly.
26. Remove camsha
ft
.
27. Remove connecting rods with pistons and rings.
28. Remove cranksha
ft
.
29. Removal of governor gear assembly.
30. Remove governor yoke, cross sha
ft
, and seal.
31. Remove li
ft
er feed cover and gaskets.
32. Remove
fl
ywheel and PTO end oil seals.
33. Removal of main bearings.
Disconnect Spark Plug Leads
1. Disconnect the leads from the spark plugs. See
Figure 8-1.
NOTE: Pull on boot only, to prevent damage to spark
plug lead.
Figure 8-1. Disconnect Both Spark Plug Leads.
Summary of Contents for Comand Pro CH1000
Page 1: ...SERVICE MANUAL HORIZONTAL CRANKSHAFT CH940 CH1000...
Page 2: ......
Page 4: ......
Page 30: ...4 4 Section 4 Air Cleaner and Air Intake System...
Page 52: ...6 6 Section 6 Lubrication System...
Page 96: ...8 16 Section 8 Disassembly...
Page 110: ...Section 9 Inspection and Reconditioning 9 14...
Page 140: ...10 30 Section 10 Reassembly...
Page 141: ......