Cub Cadet Challenger 550, Service Manual

Page: 19 / 255

General Information
1‐11
Thread locking
Compound
A thread locking compound is a fluid
applied to the threads of fasteners. After
tightening the fastener, the fluid dries
and becomes a solid filler between the
threads. This makes it difficult for the
fastener to work loose from vibration or
heat expansion and contraction. Use
thread locking compound sparingly.
Excess fluid can run into adjoining parts.
Caution
Thread locking compounds are
anaerobic and will stress, crack and
damage most plastics. Use caution
when using these products in areas
where there are plastic components.
Thread locking compounds are available
in a wide range of compounds for
various strengths, temperature and
repair applications. Follow the
manufacturer’s recommendations
regarding compound selection.
Basic Tools
Most of the procedures in this manual
can be carried out with basic hand tools
and test equipment familiar to the home
mechanic. Always use the correct tools
for the job. Keep tools organized and
clean. Store them in a tool chest with
related tools organized together.
Quality tools are essential. The best are
constructed of high-strength alloy steel.
These tools are light, easy to use and
resistant to wear. Their working surface
is devoid of sharp edges and carefully
polished. They have an easy-to-clean
finish and are comfortable to use.
Quality tools are a good investment.
Some of the procedures in this manual
specify special tools. In many cases the
tools is illustrated in use. Those with a
large tool kit may be able to perform the
jobs, however, in some cases, the
specialized equipment or expertise may
make it impractical for the home
mechanic to attempt the procedure.
When necessary, such operations are
recommended to have a dealership or
specialist perform the task. It may be
less expensive to have a professional
perform these jobs, especially when
considering the cost of equipment.
When purchasing tools to perform the
procedures covered in this manual,
consider the tool’s potential frequency of
use. If a tool kit is just now being
started, consider purchasing a basic tool
set from a quality tool supplier and they
may offer substantial savings when
complicated, specialized tools need to
be added.
Screwdrivers
Screwdrivers of various lengths and
types are mandatory for the simplest
tool kit. The two basic types are the
slotted tip (flat blade) and the Phillips tip.
These are available in sets that often
include an assortment of tip size and
shaft lengths. As with all tools, use a
screwdriver designed for the job. Make
sure the tool fits the size of the fastener.
Use them only for driving screws. Never
use a screwdriver for prying or chiseling
metal. Repair or replace worn or
damaged screwdrivers. A worn tip may
damage the fastener, making it difficult
to remove.
Phillips-head screws are often damaged
by incorrectly fitting screwdrivers.