-VIII-
General Precautions
Removal and Disassembly
Confirm the location of the faulty part and find the
probable cause of the trouble. Then decide whether
removal or disassembly is required. If so, carry out
the removal or disassembly according to the steps
shown in this service manual.
To prevent erroneous installation and to facilitate
installation work, punch or draw alignment marks in
places where neither function nor appearance is
affected.
Make a distinction between the items removed from
one assembly and those removed from another
assembly, especially when disassembling a unit
having a large number of component parts or when
disassembling two or more similar parts. Always do
the following:
1.
Keep the removed parts in order.
2.
Make a distinction between the parts to be
replaced and the parts to be reused.
3. When replacing bolts and nuts, use only ones of
the specified size.
Special Tools
When specified, be sure to use the special tools for
the specific service work. Using other tools may
cause damage to parts and/or injury to workers.
Non-reusable Parts
Whenever any of the following parts are removed,
be sure to replace them with new ones.
1.
Oil seals
2.
Gaskets (except rocker cover gasket)
3.
Packings
4. O-rings
5. Lock
washers
6. Split
pins
Recommended Replacement Parts
1.
For replacement parts, use only genuine
Cat parts.
2.
Use of the available sets and kits of service
parts is recommended.
3.
To unify parts, or for other reasons, service parts
are subject to change. When replacing parts in
the engine, carefully check for possible
modifications by referring to the updated parts
catalog for the specific engine.
Genuine Cat Parts