Ingersoll Rand Stroller 66506 B User Manual

OPERATOR’S MANUAL  
66506-B  
RELEASED:  
REVISED:  
(REV. E)  
2-11-00  
8-1-11  
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE  
66506-B AIR MOTOR  
12” AIR MOTOR  
6” STROKE  
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,  
OPERATING OR SERVICING THIS EQUIPMENT.  
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.  
SERVICE KITS  
Use only genuine ARO® replacement parts to assure  
compatible pressure rating and longest service life.  
637112 service kit includes the necessary soft parts for  
normal service of the entire air motor.  
y
y
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637113 service kit is a replacement valve kit.  
GENERAL DESCRIPTION  
The 12” air motor is a power unit used with a two-ball or  
chop-check pump. It utilizes tie rod construction for easy  
breakdown and it connects to the lower pump end with tie  
rods for easy operation. Consult the pump model operator’s  
manual for specific instructions.  
OPERATING AND SAFETY PRECAUTIONS  
DO NOT EXCEED MAXIMUM AIR INLET PRESSURE OF 90  
P.S.I. (6.2 bar) OR 75 CYCLES PER MINUTE.  
CAUTION: High pressure equipment - Always disconnect air  
supply and relieve material pressure before attempting to  
service.  
A ground lug is located on the air motor. This ground lug al-  
lows proper grounding of the pump.  
Figure 1  
AIR AND LUBE REQUIREMENTS  
A filter capable of filtering particles larger than 50 microns  
should be used with a lubricator.  
Filtered and oiled air will allow the pump to operate more ef-  
ficiently and yield a longer life to operating parts and mecha-  
nisms.  
Use an air line lubricator and keep it supplied with a good  
grade of S.A.E. #90W non-detergent gear oil set at a rate not  
to exceed approximately 1 drop per minute.  
INGERSOLL RAND COMPANY LTD  
209 NORTH MAIN STREET – BRYAN, OHIO 43506  
(800) 495-0276 y FAX (800) 892-6276  
© 2011  
CCN 99834897  
 
DISASSEMBLY / ASSEMBLY  
28. Remove the (48) screw from the (43) piston assembly.  
29. Remove the (39) valve rod, (45) spring and (42) ball from  
the (43) piston assembly.  
AIR MOTOR DISASSEMBLY  
NOTE: All threads are right hand.  
1. Place the air motor in an up-stroke position by pushing  
(43) piston assembly toward the top of the motor.  
2. Remove six (26) cap screws from the top of (27 and 30)  
blocks.  
3. Remove (27 and 30) blocks from (22) head plate.  
4. Remove (34) tube from (46) base assembly. Remove two  
(33) “O” rings from (34) tube and one (33) “O” ring from  
the bottom of (30) block manifold.  
5. Remove four (26) cap screws from the end of (27) block.  
6. Separate (27) block from (30) block manifold and remove  
(28 and 29) “Orings.  
7. Remove 3/4 - 14 N.P.T. pipe plugs from the two exhaust  
ports, if applicable.  
AIR MOTOR ASSEMBLY  
1. Place the (39) valve rod thru the (48) screw.  
2. Clean the threads of the (39) valve rod and the (5) exten-  
sion rod. Apply Loctite 271 to these threads and screw  
the (5) extension rod to the (39) valve rod and tighten  
by holding the (39) valve rod below the threads with an  
adjustable type pliers and using a wrench on the flats of  
the (5) extension rod. CAUTION: Do not mar or damage  
the finish on the (5) extension rod.  
3. Place the (42) ball and (45) spring into the (43) piston as-  
sembly.  
8. Using a 1/2” socket on (8) cap screw, turn (20) spool  
clockwise to align opening or slot in (20) spool with the  
3/4 - 14 N.P.T. exhaust port nearest the (8) cap screw.  
9. Insert a 1/4” rod or similar device thru the exhaust port of  
(30) block manifold and into the opening or slot of (20)  
spool. This rod will prevent rotation of (20) spool when  
removing (8) cap screw and (9) washer. CAUTION: Do  
not permit this rod to rest against (17) spacer legs,  
which could cause breakage of (17) spacer.  
10. Remove (8) cap screw and (9) washer.  
4. Place the (39) valve rod and (5) extension rod into the (43)  
piston assembly. Apply Loctite 271 to the threads of the  
(48) screw and thread the (48) screw into the (43) piston  
assembly and tighten.  
5. Assemble the (50) “O” ring to the groove in the (43) pis-  
ton assembly.  
6. Assemble the (36) “O” ring to the groove in the (46) air  
motor base assembly.  
7. Assemble the (41) “U” cup (lips up), (44) guide washer  
and (40) retaining ring into the (46) base assembly.  
8. Assemble the (43) piston assembly into the (46) base as-  
sembly, being careful not to damage the (41) “Ucup.  
9. Lubricate the inside diameter of the (37) air cylinder and  
slide it down over the (43) piston assembly and onto the  
(46) air motor base assembly (see figure 4).  
10. Assemble the (36) “O” ring to the groove in the (22) head  
plate.  
11. Align the notch in the (22) head plate with the port in  
the (46) air motor base assembly and press the (22) head  
plate down until it is seated against the (37) air cylinder.  
12. Assemble eight (49) cap screws thru the (22) head plate  
and (46) air motor base assembly.  
11. Unscrew four (32) cap screws and remove (31) cap as-  
sembly.  
12. Remove (20) spool out the “exhaust end” of (30) block  
manifold and remove (11) piston out the other end.  
13. From the “exhaust end” of (30) block manifold, remove  
four (19) washers, four (17) spacers, four (18) “O” rings,  
five (15) “Orings, (16) washer, (14) “Ucup, (13) gland and  
(10) “Oring.  
14. Remove (12) “Ucup from (11) piston.  
15. Using the wrench flats provided, remove the (2) piston  
assembly from the (5) extension rod.  
16. Remove (1 and 3) “Orings from (2) piston assembly.  
17. Remove (4) washer, (6) cylinder, two (7) “O” rings and (24)  
“Ucup from (22) head plate.  
13. Assemble eight (47) nuts on the (49) cap screws and  
tighten alternately and evenly.  
18. Remove two (7) “O” rings and (24) “U” cup from (6) cylin-  
der.  
19. Remove eight (47) nuts from (49) cap screws.  
20. Remove eight (49) cap screws from (22) head plate and  
(46) air motor base assembly.  
21. Remove (22) head plate from (37) air cylinder, then re-  
move (36) “Oring from (22) head plate.  
22. Pull upward on (37) air cylinder until (43) piston assem-  
bly separates from the (46) base assembly. If, in this step,  
the (43) piston assembly is not pulled from the (46) base  
assembly, then remove it after removing the (37) air cyl-  
inder.  
23. If the (37) air cylinder and (43) piston assembly are re-  
moved as one unit, then remove the (43) piston assembly  
from the (37) air cylinder.  
24. Remove the (36) “Oring from the (46) base assembly.  
25. Remove (40) retaining ring, (44) guide washer and (41)U”  
cup from (46) base assembly.  
26. Remove the (50) “Oring from the (43) piston assembly.  
27. Unscrew (5) extension rod from (39) valve rod by holding  
the (39) valve rod with an adjustable type pliers and us-  
ing a wrench on the wrench flats provided at the top of  
the (5) extension rod.  
14. Assemble two (7) “O” rings to the grooves in the (6) cylin-  
der.  
15. Assemble the (24) “U” cup into the (6) cylinder, with the  
lips facing out.  
16. Assemble the (6) cylinder over the (5) extension rod and  
into the (22) head plate. NOTE: Assemble the (6) cylinder  
with the “Ucup end onto the (5) extension rod first.  
17. Assemble the (4) washer over the (5) extension rod and  
into the (6) cylinder.  
18. Clean the threads on the (2) piston assembly. Apply  
Loctite 271 to the threads and assemble to the (5) exten-  
sion rod and tighten, using the wrench flats. CAUTION:  
Do not mar or damage the surface of either of these  
parts.  
19. Assemble the (1 and 3) “O” rings to the grooves in the (2)  
piston assembly.  
20. Assemble the (14) “U” cup into the (13) gland, with the  
lips pointed into the gland. Lubricate the bore of the (30)  
block manifold and assemble the (13) gland into the (30)  
block manifold, with the lips of the (14) “U” cup pointed  
into the block manifold. NOTE: Be sure the (13) gland is  
seated squarely against the shoulder in the (30) block  
manifold.  
66506-B (en)  
Page 3 of 8  
 
DISASSEMBLY / ASSEMBLY  
21. Assemble one (15) “O” ring and the (16) washer into the  
29. Assemble the (8) cap screw and (9) washer thru the (11)  
(30) block manifold and against the (13) gland (see figure  
5).  
piston.  
30. Apply Loctite 271 to the threads of the (8) cap screw then  
thread it into the (20) spool.  
22. Assemble four (15) “O” rings, four (18) “O” rings, four (17)  
spacers and four (19) washers into the (30) block mani-  
fold (see figure 5). NOTE: Assemble the (19) washers with  
the i.d. lips toward the (18) “O” ring. Position the (17)  
spacers so the legs are not aligned with the 3/4 - 14 N.P.T.  
exhaust ports in the (30) block manifold.  
31. Insert a 1/4” rod or similar device thru the 3/4 - 14 N.P.T.  
exhaust port in the side of the (30) block manifold and  
thru the slot of the (20) spool to prevent it from rotating,  
then tighten the (8) cap screw. Remove the 1/4rod.  
32. Assemble the (28 and 29) “O” rings into the (30) block  
manifold.  
23. Clean the threads in the (20) spool.  
24. Apply grease to the exterior of the (20) spool and assem-  
ble it into the (30) block manifold. Align the slot in the (20)  
spool with the 3/4 - 14 N.P.T. exhaust port in the side of  
the (30) block manifold.  
25. Assemble the (51) spacer into the (31) cap assembly and  
assemble the (31) cap assembly to the (30) block mani-  
fold, securing with four (32) cap screws.  
26. Assemble the (12) “U” cup into the groove in the (11)  
piston, with the lips pointed toward the “boss” side of the  
piston.  
33. Assemble the (27) block to the (30) block manifold, se-  
curing with four (26) cap screws (hand tight only).  
34. Assemble two (33) “Orings to grooves in the (34) tube.  
35. Assemble the (34) tube into the port provided in the (46)  
air motor base assembly.  
36. Assemble one (33) “O” ring to the counterbore in the bot-  
tom of the (30) block manifold.  
37. Lubricate the bore in the (27) block.  
38. Carefully slide the (27 and 30) block assemblies down  
over the (2) piston assembly and (34) tube and onto the  
(22) head plate.  
27. Assemble the (10) “O” ring onto the boss portion of the  
(11) piston.  
28. Clean the threads on the (8) cap screw.  
39. Assemble six (26) cap screws in the (27 and 30) block  
assemblies. Tighten the two (26) cap screws in the (27)  
(continued on page 6)  
PARTS LIST  
(size)  
(size)  
Item Description  
Qty Part No.  
(1) Y325-8  
(1) 66654  
Item Description  
Qty Part No.  
(1) 92531  
(1/16" x 5/16" o.d.)  
1
2
"O" Ring  
31a Cap  



9


(includes items 2a and 2b)  
Piston Assembly  
31b Washer  
(1) 92516  
(1/4” - 20 x 1-3/4”)  
2a Washer  
2b Piston  
(1) 92524  
32 Cap Screw, Socket Head  
(4) Y99-45  
(3) Y325-24  
(1) 92518  

(1/16” x 1-1/4” o.d.)  
(1) 92520  
33 “O” Ring  

9
(3/32” x 5/8” o.d.)  
3
4
5
6
7
8
9
“O” Ring  
Washer  
(1) Y325-111  
(1) 92517  
34 Tube  
9
9
(1/8 - 27 N.P.T.)  
35 Pipe Plug  
(1) Y227-2-L  
(2) Y325-277  
(1) 90035  

(1/8” x 11-3/4” o.d.)  
Extension Rod  
Cylinder  
(1) 92519  
36 “O” Ring  
9
(1) 92513  
37 Air Cylinder  
(1/16” x 7/8” o.d.)  
(1/16 - 27 N.P.T.)  
“O” Ring  
(2) Y325-18  
(1) Y6-54-C  
(1) F15-44-C  
(1) Y325-12  
(1) 92521  
38 Pipe Plug  
(1) Y227-1-L  
(1) 92527  
9



(5/16” - 18 x 7/8”)  
Cap Screw, Hex Head  
Washer  
39 Valve Rod  
(2.630” o.d.)  
40 Retaining Ring  
(1) Y147-237  
(1) Y186-24  
(1) Y16-14  
(1) 62111-B  
(1) 92216  
(1/16” x 1/2” o.d.)  
(1/4” x 1-3/4” o.d.)  
10 “O” Ring  
41 “U” Cup Packing  


9
9
(0.4375” dia.)  
11 Piston  
42 Ball  

9

9
9


9


(3/16” x 1-5/8” o.d.)  
12 “U” Cup Packing  
13 Gland  
(1) Y186-53  
(1) 94789  
43 Piston Assembly  
44 Guide Washer  
45 Spring  
(3/16” x 1-1/2” o.d.)  
14 “U” Cup Packing  
(1) Y186-52  
(5) Y325-134  
(1) 94790  
(1) 24143-B  
(1) 66507-1  
(1) 90034  


(3/32” x 2-1/16” o.d.)  
(includes items 46a and 46b)  
15 “O” Ring  
16 Washer  
17 Spacer  
18 “O” Ring  
19 Washer  
20 Spool  
46 Air Motor Base Ass’y  
46a Air Motor Base  
46b Bushing  
(4) 93250  
(1) 92511  
(1/8” x 1-3/4” o.d.)  
(1/2” - 20)  
(4) Y325-222  
(4) 93251  
47 Nut  
(8) Y11-8-C  
(1) 92525  

48 Screw  
(1/2” - 20 x 10-1/4”)  
(1) 92522  
49 Cap Screw, Hex Head  
(1/4” x 12” o.d.)  
(8) 94046-1  
(1) Y325-452  
(1) 92860  
22 Head Plate  
(1) 90056-1  
(1) Y186-46  
(2) Y227-2-L  
(10) Y99-68  
(1) 92514  
50 “O” Ring  
51 Spacer  
9


(1/8” x 11/16” o.d.)  
24 “U” Cup Packing  
9



9
9


(1/8 - 27 N.P.T.)  
25 Pipe Plug  
52 Connector  
(1) 93006  
(3/8” - 16 x 2-1/2”)  
(1/8” x 2”)  
26 Cap Screw, Socket Head  
27 Block  
Cotter Pin  
(1) Y15-47-C  
(1) 94833  
9
9
Gadus® S2 U1000 Grease Packet (1/4 oz.)  
(1/16” x 5/8” o.d.)  
28 “O” Ring  
(1) Y325-14  
(1) Y325-131  
(1) 92515  


(3/32” x 1-7/8” o.d.)  
29 “O” Ring  
Items included in service kit  
637112  
637113  
9

(entire valve section)  
30 Block Manifold  
Service Kit  
(includes items 31a and 31b)  
31 Cap Assembly  
(1) 66655  
Items not included with 66506-B air motor  
Page 4 of 8  
66506-B (en)  
 
PARTS LIST  
29  
28  
8
9
25  
26  
27  
1
11  
12  
10  
52  
26  
30  
14  
15  
16  
17  
18  
15  
19  
51  
32  
2a  
2b  
6
2
3
4
7
13  
38  
33  
24  
35  
20  
31b  
22  
36  
5
31a  
31  
37  
49  
48  
39  
33  
45  
42  
34  
41  
33  
36  
50  
43  
40  
44  
46b  
46a  
46  
47  
LUBRICATION / SEALANTS  
Apply thread sealant to all pipe threads.  
c
d
e
Apply Loctite® 271™ to threads when assembling.  
Lubricate (43), (41), i.d. of (37) and all upper valve  
parts with Gadus S2 U1000 grease.  
Figure 3  
66506-B (en)  
Page 5 of 8  
 
DISASSEMBLY / REASSEMBLY  
block, making sure it rests squarely on the (22) head  
TROUBLE SHOOTING  
Air leakage out of the main exhaust.  
plate.  
40. Snug up the other four (26) cap screws in the top of the  
(30) block manifold just enough to draw the (30) block  
manifold against the (22) head plate.  
41. Tighten the four (26) cap screws which secure the (27)  
block to the (30) block manifold. Now, tighten the four  
(26) cap screws in the top of the (30) block manifold.  
Check for worn or damaged (18) “Orings on spool.  
Check for worn or damaged (14) “Ucup packing.  
Check for worn or damaged (20) spool.  
Check for worn or damaged (50) “O” ring on (43) piston  
assembly.  
y
y
y
y
Air leakage around (43) piston assembly.  
Check for worn or damaged (12) “Ucup packing.  
y
37 Air Cylinder  
50 “ORing  
Fluid leakage out of the pilot exhaust hole.  
Check for worn or damaged (3) “Oring.  
Check for worn or damaged inside diameter of (6) cylin-  
der.  
y
y
Check for worn or damaged (1) “Oring.  
Check for worn or damaged (24) “Ucup packing.  
Check for worn or damaged (12) “U” cup packing on (11)  
piston.  
y
y
y
46 Air Motor Base  
43 Piston Assembly  
Figure 4  
ARO® is a registered trademark of Ingersoll-Rand Company Gadus® is a registered trademark of the Shell Oil Company Loctite® is a registered trademark of the Henkel Loctite Corporation  
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271® is a trademark of the Henkel Loctite Corporation  
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Page 6 of 8  
66506-B (en)  
 
CROSS SECTION  
Figure 5  
66506-B (en)  
Page 7 of 8  
 
OPTIONAL 66718 MUFFLER ASSEMBLY  
MUFFLER INSTALLATION  
66718 PARTS LIST  
(size)  
Item Description  
Qty Part No.  
(1) 79294  
(1) 79293  
(1) 79295  
(4) Y6-417  
(1) Y17-14-C  
NOTE: Secure fittings after all components have been posi-  
tioned.  
1
2
3
4
5
90° EMT Short Angle Elbow  
1. Remove nut and sleeve from the (1) 90° short angle el-  
bow.  
2. Insert and install the 3/4 - 14 N.P.T. end of the (1) elbow  
to the air motor (back off the retaining nut a few turns).  
3. Insert the (5) pipe plug into the air motor secondary ex-  
haust port.  
Tube  
Muffler  
(1/4- 20 x 4”)  
Cap Screw  
(3/4 - 14 N.P.T.)  
Pipe Plug  
4. Slide the sleeve and nut onto the (2) tube and insert the  
tube into the (1) elbow.  
5. Locate the (3) muffler on the collar of the air motor while  
aligning the (2) tube with the hole provided in the muf-  
fler.  
6. Secure the muffler to the air motor collar with four (4)  
cap screws.  
7. Secure all connections.  
2
1
5
3
4
Figure 6  
PN 97999-870  
66506-B (en)  
Page 8 of 8  
 

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