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5

1

Housing

49812–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

2

Valve Stem

48065–2

. . . . . . . . . . . . . . . . . . . . . . . . . . 

3

Lever

49936

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

4

Roll Pin

Y178-134

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

5

Grip Ring

49798

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

6

Seat

48071

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

7

Tip Valve

48070

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

8

Spring

32858

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

9

Inlet Adapter

49824

. . . . . . . . . . . . . . . . . . . . . . . . 

10

Muffler Tube

48263–1

. . . . . . . . . . . . . . . . . . . . . . . . . 

11

Dowel Pin

Y148–16

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

14

Shroud
 for models RS25A–VLK

48876

. . . . . . . . . . . . . . 

 for models RS26A–VLK

48878

. . . . . . . . . . . . . . 

15

Retaining Ring

44533

. . . . . . . . . . . . . . . . . . . . . . . 

16

Bearing (2 req’d)

48169–1

. . . . . . . . . . . . . . . . . . . . . 

17

Rear End Plate

48872

. . . . . . . . . . . . . . . . . . . . . . 

18

Cylinder (includes roll pin)

49815

. . . . . . . . . . . . . 

19

Seal

49819

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

20

Rotor

48253–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

21

Blade (5 req’d)

48254–1

. . . . . . . . . . . . . . . . . . . . . . . 

22

Front End Plate

48871

. . . . . . . . . . . . . . . . . . . . . . 

23

O Ring

Y325–223

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

24

Lock Ring

48257–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

25

Key

39442

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

26

Counterbalance (includes needle bearing)
 for models RS25A–VLK

49808–5

. . . . . . . . . . . . . . 

 for models RS26A–VLK

49808–6

. . . . . . . . . . . . . . 

27

Spindle Assembly (includes bearing)

49807

. . . . 

28

Retaining Ring

Y147–125

. . . . . . . . . . . . . . . . . . . . . . . 

30

Wrench (not shown)

30131–2

. . . . . . . . . . . . . . . . . . 

31

Eductor Assembly

49976

. . . . . . . . . . . . . . . . . . . . 

Service Kit: includes items 8, 15, 16, 21,
 27 and 28

49837

. . . . . . . . . . . . . . . . . . . . . . . . . . 

DISASSEMBLY/ASSEMBLY INSTRUCTIONS

Always wear eye protection when operating or performing
maintenance on this tool.

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

Never apply excessive pressure by a holding device which
may cause distortion of a part.

Apply pressure evenly to parts which have a press fit.

Apply even pressure to the bearing race that will be press
fitted to the mating part.

Use correct tools and fixtures when servicing this tool.

Don’t damage ‘‘O” rings when servicing this tool.

Use only genuine ARO replacement parts for this tool. When
ordering, specify part number, description, tool model number
and serial number.

MOTOR DISASSEMBLY

Remove 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 plate (22) and bearing (16).

Do not remove dowel pin (11) from housing (1) unless damage
is evident. To remove, press pin out from inside of housing.

MOTOR ASSEMBLY

Assemble dowel pin (11) into housing (1), pressing flush with
surface of housing.

Grease and assemble ‘‘O” ring (23) to lock ring (24).

Assemble lock ring (24) over counterbalance (26).

Assemble bearing (16) into end plate (22), pressing on outer
race of bearing.

Assemble end plate (22) onto shaft of counterbalance, press-
ing on inner race of bearing.

Install key (25) in key slot.

Assemble rotor (20) to counterbalance, aligning keyway to
key (25).

Assemble five rotor blades (21) to rotor slots.

Assemble cylinder (18) over rotor, aligning roll pin in cylinder
with slot in end plate.

Assemble bearing (16) into end plate (17), pressing on outer
race of bearing.

Assemble end plate (17), with bearing (16), to counterbal-
ance, pressing on inner race of bearing. NOTE: Align slot in
end plate with roll pin in cylinder.

Install retaining ring (15) to groove in counterbalance, with
bow in ring positioned as shown on parts illustration page.

Assemble seal (19) to grooves in cylinder.

Assemble motor to housing, aligning seal (19) with air inlet.

Tighten lock ring (24), securing motor assembly.

Lubricate needle bearing, contained in counterbalance, with
ARO 33153 grease.

Assemble spindle assembly (27) to counterbalance, securing
with retaining ring (28).

PART NUMBER FOR ORDERING

PART NUMBER FOR ORDERING

Содержание RS25A–VLK

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 7: ...7 NOTES ...

Страница 8: ...PN 49999 500 ...

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