Air Supply; Troubleshooting; Operating Instructions - Napa 775-9265A Instruction Manual

Nipple

AIR SUPPLY

Tools of this class operate on a wide range
of air pressures. It is recommended that air pressure of
these tools measures 90 PSI at the tool while running
free. Low pressure (under 90 psig; 6.2 bar) reduces the
speed of all air tools. Low air pressure not only wastes
time, but also costs money. Higher pressure (over 90
psig; 6.2 bar) raises performance beyond the rated
capacity of the tool, which will shorten tool life because
of faster wear and could cause injury.
Always use clean, dry air. Dust, corrosive fumes and/or
water in the air line will cause damage to the tool.
Drain the air tank daily. Clean the air inlet filter screen
on at least a weekly schedule. The recommended
hookup procedure can be viewed in the above figure.
The air inlet used for connecting air supply, has stan-
dard 1/4" NPT American Thread. Line pressure should
be increased to compensate for unusually long air hoses
(over 25 feet). Minimum hose diameter should be 3/8"
I.D. and fittings should have the same inside dimensions
and be tightly secured.
Air Inlet
PLEASE REVIEW ALL WARNING INSTRUCTIONS PRIOR TO OPERATION. SAVE THIS MANUAL FOR FUTURE REFERENCE.
775-9265A
INSTRUCTION MANUAL & PARTS BREAKDOWN
LUBRICATION
Lubricate the air motor daily with NAPA air tool oil. If
no air line oiler is used, run a teaspoon of oil through
the tool. The oil can be squirted into the tool air inlet
or into the hose at the nearest connection to the air
supply, then run the tool. The amount of oil to be used
is 1 ounce. Overfilling will cause a reduction in the
power of the tool.

OPERATING INSTRUCTIONS

Use the enclosed wrenches to assemble the discs to the
tool. When assembling discs to tools, stack discs
together in the following order: 3", 4-1/2" & 5-1/2"
with side marked as the sandpaper side toward the
work. As the sandpaper wears on the outside diameter,
you may remove the larger discs in descending order
one at a time. Trim the used portion of the sandpaper
away, thus allowing maximum usage of your sandpaper.
DO NOT use the 5-1/2" disc without the 3" disc and 4-
1/2" disc as backing or the 4-1/2" disc without the 3"
disc as backing. The 3" disc may be used alone without
another disc as backing.
Let the sander do the work. The normal weight of the
machine is sufficient for efficient sanding. Do not put
additional pressure on the machine. This will only slow
down the speed of the pad, reduce sanding efficiency
and put additional burden on the motor.
Start the work with an abrasive grit just coarse enough
to remove high spots and roughness. Follow with
additional sandings using finer grits until the desired
finish is obtained. Never go from a coarse grit to a fine
grit in one step. It may be difficult to remove swirl
marks made by coarse abrasives. Use the finest grits
practical for roughing operations and finish by using
successively finer grits.

TROUBLESHOOTING

Other factors outside the tool may cause loss of power
or erratic action. Reduced compressor output, excessive
drain on the air line, moisture or restrictions in air pipes
or the use of hose connections of improper size or poor
conditions may reduce air supply. Grit or gum deposits
in the tool may cut power and may be corrected by
cleaning the air strainer and flushing out the tool with
gum solvent oil or an equal mixture of SAE # 10 and
kerosene. If outside conditions are in order, and tool
continues erratic action or low power, disconnect tool
from hose and contact your nearest NAPA/EVERCRAFT
authorized service center.
3 Rev. 03/08/04