Ingersoll-Rand ARO 66266 Series User manual

OPERATOR’S MANUAL 66266--X
RELEASED: 7--7--90
REVISED: 6--4--10
(REV. G) IPP
INCLUDING: SERVICE KITS, TROUBLESHOOTING, PARTS LIST, DISASSEMBLY & REASSEMBLY
IMPORTANT: READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
LOWER PUMP END
CHOP--CHECK STYLE
ALSO COVERS 637074- XXX SERVICE KIT
(PACKINGS ARE UPPER AND LOWER UNLESS NOTED)
LOWER PUMP END OPTION
DESCRIPTION CHART*
66266--XXX
PACKING MATERIAL
1 THIOKOL LEATHER -
3 GLASS FILLED PTFE
PACKING MATERIAL
5PTFE(GF)/LEATHER STAG’D (UPPER)
GLASS FILLED PTFE (LOWER) -
PLUNGER TYPE
SPRING ARRANGEMENT
SPRING ARRANGEMENT PLUNGER TYPE
1COILSPRING-
4 WAVE SPRING
5 COMPOSITE SPRING W/ADJ P’KG NUT -
3 HD SS W/HD CHROME PLATING
* NOT ALL MODEL COMBINATIONS ARE AVAILABLE, REFER TO PUMP MODEL MANUAL (650XXX--XXX) FOR ‘‘ACTIVE” MODELS.
C UHMW--PE
DUHMW--PE/LEATHER STAG’D (UPPER)
LEATHER (LOWER) -
G UHMW--PE/LEATHER STAG’D
PUHMW--PE/PTFE STAG’D (UPPER)
UHMW--PE (LOWER)
RPTFE/UHMW--PE STAG’D (UPPER)
PTFE (LOWER)
-AS OF MAY 15, 1995 NO LONGER AVAILABLE
SERVICE KITS
•Use only genuine ARO replacement parts to assure compatible-
pressure rating and longest service life.
•637074--XXX for general repair of 66266--XXX Lower Pump End
GENERAL DESCRIPTION
WARNING DO NOT EXCEED MAXIMUM OPERATING PRES-
SURE AS INDICATED ON PUMP MODEL PLATE
WARNING REFER TO GENERAL INFORMATION SHEET
FOR ADDITIONAL SAFETY PRECAUTlONS AND IMPORTANT
INFORMATION. (See the pump model manual for the proper Form
No.)
•This LOWER PUMP END MANUAL is one of four documents need-
ed to properly support an ARO pump model.
Part A. 650XXX--XXX--X MODEL (OPERATOR’S) MANUAL,
Part B. GENERAL INFORMATION,
Part C. MOTOR (OPERATOR’S) MANUAL,
Part D. LOWER PUMP END (OPERATOR’S) MANUAL.
Copies are available from the factory upon request.
•The Chop--Check design provides far easy priming of the lower foot
valve. The double acting feature is standard in all ARO industrial
pumps, material is delivered to the pump discharge outlet on both
the up and down stroke.
•The pump ratio is an expression of the relationship between the air
motor area and the lower pump end area.
REGULATED INLET AIR PRESSURE X PUMP RATI0 =
MAXIMUM FLUID OUTLET PRESSURE PRESSURE
EXAMPLE: When 150 PSI (10.3 Bar) air pressure is supplied to the
pump motor on a 3:1 ratio pump, the lower pump end will develop a
maximum of 450 PSI (31 Bar) fluid pressure (at no flow).
As the fluid control is opened, the flow rate will increase as the motor
cycle rate increases to keep up with the demand.
•Operating at excessive pressures will shorten the life of the pump.
TROUBLE SHOOTING CHOP- CHECK PUMPS
Common Lower Pump End Problems
•No material at outlet. (Pump continually cycles.)
Check material supply, disconnect or shut off the air supply and re-
plenish the material, reconnect.
•Material on one stroke only. (fast downstroke.)
The lower check may not be seating in the foot valve. (See lower
pump disassembly) Remove the check from the foot valve, clean
and inspect the valve seat area. If check or foot valve are damaged,
replace.
•Material on one stroke only. (fast upstroke.)
Check for worn or damaged seals. Replace the seals as necessary.
•Material leakage out of the solvent cup or material appears on
the pump plunger rod.
For Models (--X5X Only). Increase the load on the packings by tight-
ening the packing nut.
Check for worn upper packings and replace them as necessary.
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
[phone] FAX[phone] © 2010
www.ingersollrandproducts.com

MATERIAL CODE
[B]=Buna ‘‘N’’
[Br]=Brass
[CS]=Carbon Steel
[SS]=Stainless Steel
[T]=PTFE
[UH]=UHMW--PE
SERVICE KITS INCLUDE:
‘‘V” Type Models: 7, 23, 24, 37, 51, 52, 55, 56 & 59.
Cup Type Models: 7, 23, 24, 37, 51, 52, 55, 56 & 65.
- K3X Type Models: 7, 23, 24, 37, 75, 76 & 77.
Also in kit: Two Y15--47--C Cotter Pins to connect pump to Air Motor
[Cu]=Copper
[De]=Delrin
[DI]=Ductile Iron
[L]=Leather
PAGE 2 OF 4 66266- X
PACKING OPTIONS AND SERVICE KITS
LOWER PUMP SERVICE UPPER PACKING MIDDLE PACKING LOWER PACKING
66266- XXX KIT 51 (X) ‘‘V” PACKING 52 (2) ‘‘V” PKG 55 (X) ‘‘V” PACKING 56 (2) ‘‘V” PKG 65 (1) ‘‘U” CUP
(Popular Models) 637074- XXX PART NO (QTY) [MT’L] PART NO [MT’L] PART NO (QTY) [MT’L] PART NO [MT’L] PART NO [MT’L]
- G13, -- G43.- G53 -637074- G43 93661- 4 (3) [UH] 93661- 1 [L] 93662- 4 (2) [UH] 93662- 1 [L] 90911 [T]
- P13, -- P43, - P53 -637074- P43 93661- 4 (3) [UH] 93661- 2 [T] 93662- 4 (4) [UH] ------- -- 90911 [T]
- R13, -- R43, - R53 -637074- R43 93661- 2 (3) [T] 93661- 4 [UH] 93662- 2 (4) [T] ------- -- 90911 [T]
(See Page 4 for more Options) -After May 15, 1995 these models are no longer available. EXAMPLE: 66266- G13 is replaced by 66266- G43 & Svce kit is 637074- G43.
COMMON WETTED PARTS
66266- XXX 66266- XXX
ITEM DESCRIPTION (QTY) PART NO [MTL] ITEM DESCRIPTION (QTY) PART NO [MTL]
1Solvent Cup (1) 66866- 1 [CS] 26 Plunger Rod (1) 91552- 1 [SS]
6Pump Body (1) 90848 [DI] 28 Seat (1) 90914 [SS]
7Gasket (2) 90306 [Cu] 30 Rod (1) 91719 [SS]
9Tube (1) 91844 [SS] 31 Plate (1) 93597- 1 [SS]
10 Tie Rod (3) 91725 [CS] 32 Button (1) 93596- 1 [SS]
11 Nut (3) Y11-110-N [CS] 33 Nut (1) Y171-7-C [SS]
15 Foot Valve Body (1) 91730 [CS] 34 Rod (1) 90847 [SS]
21 Body (1) 90916 [SS] 35 Wavy Washer Y(1) 91745 [CS]
22 Seat (1) 91716 [Cu] 36 Nut (1) 90912 [CS]
23 Gasket (2) 91736 [SS] 37 Snap Ring (1) Y147- 102 [CS]
24 ‘‘O” Ring (1) Y325- 229 [B] 58 Washer, F Backup P(1) 91743 [Br]
25 Adapter (1) 91842 [DI] 61 Washer, M Backup P(1) 91744 [Br]
YUse only on - 1XX,- AXX,- DXX & - KXX PUse only on - 1XX, - AXX & - DXX
UPPER PACKING PARTS
COIL SPRING MODELS --X1X ONLY
ITEM DESCRIPTION (QTY) PART NO [MTL]
41 Spring (1) 90836 [CS]
50 Washer, F Backup (1) 90840 [Br]
53 Washer, M Backup (1) 90839 [Br]
UPPER PACKING PARTS
WAVE SPRING MODELS --X4X ONLY
ITEM DESCRIPTION (QTY) PART NO [MTL]
43 Wave Spring (1) 94131 [SS]
53 Washer, M Backup (1) 90839 [Br]
115 Washer, F Backup (1) 94132 [De]
- KXX PACKING OPTION CONSISTS OF: 75 Packing Assembly (93451- 1), 76
Packing Assembly (93452- 1) & 77 Packing Assembly (93453- 1).
UPPER PACKING PARTS
COMPOSITE SPRING MODELS --X5X ONLY
ITEM DESCRIPTION (QTY) PART NO [MTL]
42 Composite Spring (1) 66752- 102 [SS]
50 Washer, F Backup (1) 90840 [Br]
MIDDLE PACKING PARTS
‘‘V” TYPE MODELS
ITEM DESCRIPTION (QTY) PART NO [MTL]
47 Wave Spring (1) 90915 [CS]
54 Washer, F Backup (1) 90910 [SS]
57 Washer, M Backup (1) 90909 [SS]

--X1X MODELS
COIL SPRING
--X5X MODELS
COMPOSITE SPRING
‘‘V” PACKING
STAGGERED PACKINGS
NOTE: When using ‘‘STAGGERED”
packings use the shaded position as shown in the
views above for the ‘‘52” and ‘‘56” packings.
nA 93456--1 Rod is included with unit
to adjust packing nut/solvent cup. 66266- X
47
50
42
58
36
51
52
41
61
59
1
n
6
75
10
11
21
26
9
37
7
15
28
-- K 3 X M O D E L S
57
56
55
54
-- K 3 X M O D E L S
-- K 3 X
MODELS
UPPER
MIDDLE
LOWER
77 21
21
24
25
37
35
35
22
23
30
31
32
33
65
34
50
51
52
53
(MODELS --GXX & --9XX
have staggered pkgs)
‘‘V” PACKING
CUP PACKING
(Models --1XX,
--AXX, --DXX)
37
43
115
52
51
WAVE
SPRING
--X4X MODELS
Primer
Assembly
AFTER MAY 15, 1995
THE MODELS IN SHADED
AREAS ARE NO LONGER
AVAILABLE
76
53
LOWER PUMP END
66266- X PAGE 3 OF 4

LOWER PUMP DISASSEMBLY
LOWER PUMP REASSEMBLY
PAGE 4 OF 4 66266- X
PACKING OPTIONS AND SERVICE KITS
L
O
W
E
R
P
U
M
P
S
V
C
E
K
I
T
UPPER PACKING MIDDLE PACKING LOWER PACKING
LOWER PUMP SVCE. KIT 51 (X) ‘‘V” PACKING 52 (2) ‘‘V PKG 55 (X) ‘‘V” PKG 59 (4) ‘‘V” PKG 65 (1)‘‘U” CUP
66266- XXX 637074- XXX PART NO (QTY) [MT’L] PART NO [MT’L] PART NO (QTY) [MT’L] PART NO [MT’L] PART NO [MT’L]
- 113, -- 153 -637074- G43 93661- 1 (5) [L] ------- -- 93662- 1 (4) [L] 93678- 1 [L] ------- --
- 313, -- 353 -637074- 343 93661- 2 (5) [T] ------- -- 93662- 2 (4) [T] ------- -- 90911 [T]
- 513, -- 553 -637074- G43 93661- 2 (3) [T] 93661- 1 [L] 93662- 2 (4) [T] ------- -- 90911 [T]
- C13, --C53-637074- C43 93661- 4 (5) [UH] ------- -- 93662- 2 (4) [T] ------- -- 90911 [T]
- D13, --D53-637074- D43 93661- 4 (3) [UH] 93661- 1 [L] 93662- 1 (4) [L] 93678- 1 [L] ------- --
-After May 15, 1995 these models are no longer available. EXAMPLE: 66266- 113 is replaced by 66266- G43 & Service kit is 637074-G43.
Note: All threads are right hand.
1. Remove (6) pump body from (9) suction tube, by sliding it off three
(10) tie rods.
2. Remove (7) gasket from top of (9) suction tube.
3. Remove three (10) tie rods.
4. Pull (9) suction tube off the MIDDLE packing and valve section and
out of (25) adapter.
5. Push (26) plunger rod to expose the primer assembly
6. Remove (33) nut, (32) valve plate and (31) washer from (30) primer
rod.
7. Pull (26) plunger rod and remove MIDDLE packing, valve section
and (30) rod from (15) chamber body.
8. Remove (7) gasket out of (25) adapter.
9. With the aid of a flat bladed screwdriver remove (25) adapter, (21)
valve body, (22) valve seat and two (23) gaskets out of (15) cham-
ber body. Use the flat bladed screwdriver to pry on the slot on (25)
adapter.
10. Remove (24) ‘‘O” Ring from (14) adapter.
11. With retaining ring pliers, remove (37) retaining ring from (21) valve
body, then remove the packings out of (21) valve body.
12. Using provided wrench flats, remove (30) rod from (34) valve rod.
Again, using wrench flats remove (34) valve rod from (26) plunger
rod.
CAUTION: DO NOT mar or damage surfaces of any of these rods.
13. Slide the MIDDLE packing assembly off (34) valve rod.
14. Clamp (34) valve seat in a vise and remove (36) valve seat nut, then
remove the MIDDLE packing assembly off (28) valve seat.
15. Remove (1) solvent cup from (6) pump body. Now remove UPPER
packing assembly out (6) pump body.
Note: All rubber goods and packings should be lubricated with a com-
patible lubricant prior to assembly.
1. Assemble (21) valve body with LOWER packings. Refer to Packing
Options Chart on page 2.
2. Retain LOWER packing assy. in (21) valve body with (37) retaining
ring.
3. Assemble (28) valve seat MIDDLE packings. Refer to Packing Op-
tions Chart on page 2.
4. Secure the MIDDLE packing assy. with (36) valve seat nut.
5. Slide (21) valve body with LOWER packingsonto the end of (30) rod
opposite the wrench flats. Install (21) valve body with the beveled
end onto rod
6. Screw (30) rod into (34) valve body and tighten.
7. Place (24) ‘‘O” Ring on (25) adapter.
8. Slide (25) adapter onto the (34) valve body & (30) rod assy with the
wider diameter opening going on first & fit it over (21) body.
9. Slide (28) valve seat and MIDDLE packing assy over (34) valve
body. Be sure to place beveled end of (28) valve seat against bevel
of (34) valve body.
10. Screw (34) valve body into (26) plunger rod and tighten. Use
wrench flats.
11. Place one (23) gasket inside (15) chamber body, followed with (22)
valve seat with beveled side up. NOTE: If stringy or filled materi
al is being pumped, then reverse the (22) valve seat. Next place
second (23) brass gasket against top of (22) valve seat.
12. Place (26) plunger, (28) valve seat and MIDDLE packing assy along
with (30) rod & (25) adapter assy into (15) chamber body with the
primer rod end going in first.Slide the (25) adapter into place in the
(15) chamber body.
13. Place (7) gasket in (25) adapter.
14. Lubricate the MIDDLE packing assy and the inside of (9) suction
tube. Carefully slide (9) suction tube over (26) plunger and MIDDLE
packing assy into (15) adapter.
15. Install three (10) tie rods.
16. Place (7) gasket on end of (9) suction tube. NOTE: Apply a small
amount of grease on gasket to help keep gasket in place.
17. Slide (6) pump body over (26) plunger rod onto (10) tie rods. Seat
the (9) suction tube into (6) pump body.
18. Assemble the UPPER packing onto the (26) plunger rod and slide
into (6) pump body.
19. Install (1) solvent cup and hand tighten.
20. Push (26) plunger rod to expose (30) rod at bottom of pump. Place
(31) washer, (32) plate with beveled edges away from pump and
(33) nut onto (30) rod. Tighten (33) nut.
21. Push (30) rod until rod is inside (15) chamber body. Tighten (1) sol-
vent cup
.
PN 97999- 057