ARO ARO 6661AX-X-C Operator'S Manual Download Page 5

2

k

3

k

4

k

6

,

7

15

28

21

22

25

,

26

,

36

37

21

22

FOR THE

AIR MOTOR SECTION

SEE PAGES 6 & 7

19

k

33

k

5

1

24

19

k

35

27

,

38

,

34

7

VIEW FOR -XX4 (PTFE DIAPHRAGM) CONFIGURATION ONLY

AIR SIDE

SANTOPRENE

(GREEN when

used as backer)

FLUID SIDE

PTFE

(WHITE)

.

TORQUE REQUIREMENTS

,

LUBRICATION / SEALANTS

NOTE: DO NOT OVERTIGHTEN FASTENERS

33

k

33

k

29

,

24

39

36

33

k

(6) Diaphragm Nut 25 - 30 ft lbs (33.9 - 40.7 Nm),

lubricate face with Key-Lube grease and

apply Loctite 271 to threads.

(25, 26, 27, 29) Fluid Caps / Manifold Bolts 120 - 140 in. lbs

(13.6 - 15.8 Nm), apply Loctite Nickel Antiseize to threads.

(38) Bolt 40 - 45 in. lbs (4.5 - 5.1 Nm).

61

61

COLOR CODE

DIAPHRAGM

BALL

MATERIAL

COLOR

COLOR

EPR

Blue (--)

Blue (

S

)

HYTREL

Cream

N/A

NEOPRENE

Green (--)

Green (

S

)

NITRILE

Red (--)

Red (

S

)

SANTOPRENE

Cream

*

Cream

SANTOPRENE

Green

N/A

(Backup)

PTFE

White

White

POLYURETHANE

N/A

Red

VITON

Yellow (--)

Yellow (

S

)

(--) STRIPE

(

S

) DOT

8

k

Apply Key-Lube grease to all “O”

rings, “U” Cups & mating parts.

60

60

6661XJ-X
6661XK-X
6661XL-X
6661XN-X
6661XS-X
6661XT-X

6661XJ-X
6661XK-X
6661XL-X
6661XN-X
6661XS-X
6661XT-X

6661XF-X
6661XG-X
6661XR-X

6661XF-X
6661XG-X
6661XR-X

Figure 3

PAGE 5 OF 8

6661AX-X-C

PARTS LIST / 6661AX-X-C FLUID SECTION

Summary of Contents for ARO 6661AX-X-C

Page 1: ...Diaphragm Pump offers high volume delivery even at low air pressure and a broad range of material compatibility options available Refer to the model and option chart ARO pumps feature stall resistant design modular air motor fluid sections Air operated double diaphragm pumps utilize a pressure differential in theairchamberstoalternatelycreatesuctionandpositivefluidpressure in the fluid chambers ba...

Page 2: ...slowly loosening and removing outlet hose or piping from pump WARNING EXPLOSION HAZARD Models containing alumi numwettedpartscannotbeusedwith III Trichloroethane Me thylene Chloride or other Halogenated Hydrocarbon solvents which may react and explode S Check pump motor section fluid caps manifolds and all wettedpartstoassurecompatibilitybeforeusingwithsolvents of this type WARNING HAZARDOUSMATERI...

Page 3: ...mdirtandforeignmatter duringservice disassembly and reassembly MAINTENANCE CONTINUED S Keep good records of service activity and include pump in preven tive maintenance program S Beforedisassemblingemptycapturedmaterialintheoutletmanifold by turning the pump upside down to drain material from the pump FLUID SECTION DISASSEMBLY 1 Remove top manifold s 2 Remove 22 balls 19 and 33 O rings and 21 seat...

Page 4: ... C 90533 M SPM Y328 14 T Y328 112 T 93282 T 93281 T x Quantity of eight 8 required for models 6661X3 X 6661X4 X and 6661XP X Quantity of four 4 required for models 6661XF X 6661XG X 6661XJ X 6661XK X 6661XL X 6661XN X 6661XR X 6661XS X and 6661XT X MANIFOLD FLUID CAP MATERIAL OPTIONS 6661XX XXX C POLYPROPYLENE P V D F 6661X3 6661XP 6661XF 6661XR 6661XJ XL 6661XS XT 6661X4 6661XG 6661XK XN Item Des...

Page 5: ...Caps Manifold Bolts 120 140 in lbs 13 6 15 8 Nm apply Loctite Nickel Antiseize to threads 38 Bolt 40 45 in lbs 4 5 5 1 Nm 61 61 COLOR CODE DIAPHRAGM BALL MATERIAL COLOR COLOR EPR Blue Blue S HYTREL Cream N A NEOPRENE Green Green S NITRILE Red Red S SANTOPRENE Cream Cream SANTOPRENE Green N A Backup PTFE White White POLYURETHANE N A Red VITON Yellow Yellow S STRIPE S DOT 8 k Apply Key Lube grease t...

Page 6: ...ith new parts as necessary Look for deep scratches on metallic surfaces and nicks or cuts in O rings S Take precautions to prevent cutting O rings upon installation S Lubricate O rings with Key Lube grease S Do not over tighten fasteners refer to torque specification block on view S Re torque fasteners following restart PILOT VALVE DISASSEMBLY 1 Remove 104 retaining ring 2 Remove 123 screws and 12...

Page 7: ...NT 115 SPACER LEGS AWAY FROM BLOCKING INTERNAL PORTS WHEN REASSEMBLING AIR SECTION MAJOR VALVE CROSS SECTION DETAIL 201 109 110 k 112 114 k 113 k 115 111 k 116 124 TORQUE REQUIREMENTS NOTE DO NOT OVERTIGHTEN FASTENERS 105 40 50 in lbs 4 5 5 6 Nm LUBRICATION SEALANTS k Apply Key Lube to all O rings U Cups mating parts z Apply Loctite 271 to threads g Apply Dri Loc 204 to threads 102 k 128 104 121 z...

Page 8: ... F F B D DIMENSIONS 6661XJ X 6661XL X 6661X3 X 6661XS X 6661XK X 6661XF X 6661XP X 6661X4 X 6661XT X 6661XN X 6661XR X 6661XG X A 12 21 32 321 mm 12 15 32 316 mm 13 5 32 334 mm 13 1 32 331 mm 13 5 32 334 mm 13 1 32 331 mm B 13 25 32 349 mm 13 19 32 345 mm 13 25 32 350 mm 13 19 32 345 mm 13 25 32 350 mm 13 19 32 345 mm C 10 1 16 255 mm 9 15 16 252 mm 10 1 16 255 mm 9 15 16 252 mm 10 1 16 255 mm 9 1...

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