Basic Tools - Yamaha MM700A Manual

8
Most solvents are used in a parts washing cabinet for in-
dividual component cleaning. For safety, use only non-
flammable or high flash point solvents.
Gasket Sealant
Sealants are used in combination with a gasket or seal
and are occasionally alone. Follow the manufacturer's
recommendation when using sealants. Use extreme care
when choosing a sealant different from the type originally
recommended. Choose sealants based on their resistance
to heat, various fluids and their scaling capabilities.
One of the most common sealants is RTV, or room tem-
perature vulcanizing sealant. This sealant cures at room
temperature over a specific time period. This allows the
repositioning of components without damaging gaskets.
Moisture in the air causes the RTV sealant to cure. Al-
ways install the tube cap as soon as possible after applying
RTV sealant. RTV sealant has a limited shelf life and will
not cure properly if the shelf life has expired. Keep partial
tubes sealed and discard them if they have surpassed the
expiration date.
RTV
Applying sealant
Clean all old gasket residue from the mating surfaces.
Remove all gasket material from blind threaded holes; it
can cause inaccurate bolt torque. Spray the mating sur-
faces with aerosol parts cleaner and then wipe with a
lint-free cloth. The area must be clean for the sealant to
adhere.
Apply RTV sealant in a continuous bead 2-3 mm
(0.08-0.12 in.) thick. Circle all the fastener holes unless
otherwise specified. Do not allow any sealant to enter
these holes. Assemble and tighten the fasteners to the
specified torque within the time frame recommended by
the RTV sealant manufacturer.
Gasket Remover
Aerosol gasket remover can help remove stubborn gas-
kets. This product can speed up the removal process and
prevent damage to the mating surface that may be caused
by using a scraping tool. Most of these types of products
are very caustic. Follow the gasket remover manufac-
turer's instructions for use.
Threadlocking Compound
A threadlocking 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 difficult for the fastener to work loose from vi-
it
bration, or heat expansion and contraction. Some
threadlocking compounds also provide a seal against Quid
leakage.
Before applying threadlocking compound remove any
old compound from both thread areas and clean them with
aerosol parts cleaner. Use the compound sparingly. Ex-
cess fluid can run into adjoining parts.
Threadlocking compounds come in different strengths.
Follow the particular manufacturer's recommendations
regarding compound selection. Two manufacturers of
threadlocking compound are ThreeBond and Loctite
which offer a wide range of compounds for various
strength, temperature and repair applications.

BASIC TOOLS

Most of the procedures in this manual can be carried out
with simple hand tools and test equipment familiar to the
home mechanic. Always use the correct tools for the job at
hand. 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
CHAPTER ONE