ARO RS25A–VLK Operator'S Manual Download Page 2

2

WARNING LABEL IDENTIFICATION

FAILURE TO OBSERVE THE FOLLOWING WARNINGS COULD RESULT IN INJURY.

Always wear eye protection
when operating or perform-
ing maintenance on this
tool.

WARNING

WARNING

Always wear hearing 
protection when operating
this tool.

Always turn off the air sup-
ply and disconnect the air
supply hose before install-
ing,  removing or adjusting
any accessory on this tool,
or before performing any
maintenance on this tool.

WARNING

Air  powered  tools  can vibrate
in use.  Vibration, repetitive
motions or uncomfortable po-
sitions may be harmful to your
hands and arms.  Stop using
any tool if discomfort, tingling
feeling or pain occurs.  Seek
medical advice before resum-
ing use.

WARNING

Do not carry the tool by
the hose.

WARNING

WARNING

Do not use damaged, frayed
or deteriorated air hoses
and fittings.

WARNING

Keep body stance balanced
and firm.  Do not overreach
when operating this tool.

WARNING

Operate at 90 psig (6.2 bar/
620 kPa) Maximum air pressure.

90 psig

(6.2bar/620 kPa)

SANDER SPECIFIC WARNINGS

Use only a sanding pad, buffing wheel or
polishing bonnet with these tools.  Do not use
any grinding wheel, bur or metal removing
accessory other than a sanding pad with
these tools.  Never use an accessory having a
maximum operating speed less than the free
speed of the Sander in which it is being used.

These Sanders will operate at the free speed
specified on the nameplate if the air supply
line furnishes 90 psig (6.2 bar/620 kPa) air
pressure at the tool.  Operation at higher air
pressure will result in excessive speed.

Do not operate this Sander away from the
work surface.

Check for excessive speed and vibration
before operating.

Do not use this tool if actual free speed
exceeds the nameplate rpm.

Never exceed the rated rpm of tool.

Repeated prolonged operator exposure to
vibrations which may be generated in the use
of certain hand–held tools may produce
Raynaud’s phenomenon, commonly referred
to as Whitefinger disease.  The phenomenon
produces numbness and burning sensations
in the hand and may cause circulation and
nerve damage as well as tissue necrosis.
Repetitive users of hand–held tool who
experience vibrations should closely monitor
duration of use and their physical condition.

When using a pad having a shank, insert the
shank to full depth in the collet.  When using a
pad on a threaded arbor, make certain the
flange nut is tightened securely.  Check the
tightness of the collet nut or flange nut before
operating a Sander to make certain it will not
loosen during operation.

Summary of Contents for RS25A–VLK

Page 1: ... air hoses and fittings Be sure all hoses and fittings are the correct size and are tightly secured See Dwg TPD905 1 for a typical piping arrangement Always use clean dry air at 90 6 2 bar 620 kPa psig maximum air pressure Dust corrosive fumes and or excessive moisture can ruin the motor of an air tool Do not lubricate tools with flammable or volatile liquids such as kerosene diesel or jet fuel Do...

Page 2: ...er than a sanding pad with these tools Never use an accessory having a maximum operating speed less than the free speed of the Sander in which it is being used These Sanders will operate at the free speed specified on the nameplate if the air supply line furnishes 90 psig 6 2 bar 620 kPa air pressure at the tool Operation at higher air pressure will result in excessive speed Do not operate this Sa...

Page 3: ...ter each 160 hours of operation inject one or two strokes of ARO Part 33153 grease through the end of the spindle 27 to lubricate the needle bearing which is in the end of the counterbalance 26 Do not mark any nonmetallic surface on this tool with customer identification codes Such actions could affect tool performance MAIN LINES 3 TIMES AIR TOOL INLET SIZE TO AIR SYSTEM TO AIR TOOL LUBRICATOR REG...

Page 4: ...1 GRIP RING 2 58 DIA 6 7 8n 9 4 5 2 3 20 19 18 17 n 27 26 25 24 10 n 16 n 15 14 1 23 n 16 22 n 21 n 28 n INCLUDED IN SERVICE KIT NO 49837 INSTALL RETAINING RING 15 AS SHOWN BOWED AWAY FROM BEARING FACE WITH ROUNDED O D ON THIS SIDE 31 NOT SHOWN 48275 1 DUST BAG 49600 VACUUM HOSE 11 ATP 38 4 ...

Page 5: ...move retaining ring 28 Remove spindle assembly 27 includes bearing NOTE Do not attempt to remove bearing from spindle Remove lock ring 24 and pull motor and seal 19 from hous ing Remove retaining ring 15 Using special brass blocks to fit around o d of cylinder clamp around cylinder and press shaft of counterbalance thru bear ing 16 and end plate 17 Remove blades 21 rotor 20 and key 25 Remove end p...

Page 6: ...using with hole in valve stem in line with housing to ac cept valve 7 Assemble seat 6 into housing with rounded corners into housing first Coat valve 7 with ARO 29665 spindle oil and assemble into housing securing valve stem 2 Assemble spring 8 into housing Assemble inlet adapter 9 to housing securing throttle com ponents Assemble lever 3 to housing securing with roll pin 4 Assemble eductor assemb...

Page 7: ...7 NOTES ...

Page 8: ...PN 49999 500 ...

Reviews: