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66610X-X-C (en)
“Smart Parts” Keep these items on hand in addition to the Service Kits for fast repair
and reduction of down time.
PARTS LIST / 66610X-X-C AIR MOTOR SECTION
Parts Y 145-26 (1.156" ID) (qty 2) retaining rings and Y325-24 "O" rings (qty 2)
are included in the service Kit for the repair of larger pumps.
Item Description
(size)
Qty Part No.
[Mtl]
Item Description
(size)
Qty Part No.
[Mtl]
101 Motor Body
(models 66610X, 66612X)
(1) 94743
[A]
117 Gasket
(1) 92004
[B/Ny]
(models 66611X, 66613X)
(1) 94741
[CI]
118 Pilot Rod
(1) 93309-1
[C]
102 “O” Ring
(1/16” x 1” OD)
(2) Y325-20
[B]
119 “O” Ring
(1/8” x 3/4” OD)
(4) 93075
[U]
103 Sleeve
(1) 94527
[D]
120 Spacer
(3) 115959
[Z]
104 Retaining Ring, TruArc
(.925” ID)
(2) Y145-25
[C]
121 Sleeve Bushing
(2) 98723-1
[Bz]
105
Screw/Wshr
(1/4”-20 x 5/8”) (-XX0, 1, 2, 9)
(8) 93860
[C]
122 “O” Ring
(3/32” x 9/16” OD)
(2) 94820
[U]
Cap Screw
(1/4”-20 x 5/8”) (-XXA, B, C, D)
(8) Y6-42-T
[SS]
123 Screw
(#8 - 32 x 3/8”)
(4) Y154-41
[C]
106 Lockwasher
(1/4”) (6661XA, 1XB,1XC, 1XD)
(8) Y14-416-T [SS]
124
Stud
(5/16” - 18 x 1-3/4”) (6661X0, 1X1, 1X2
,
1X9)
(16) 92866
[C]
107
Leg
(models 6661X0, 1X2, 1X9)
(2) 92003
[C]
(5/16” - 18 x 1-3/4”) (6661XA, 1XB, 1XC, 1XD)
(16) 92866-1
[SS]
(models 6661XA, 1XC, 1XD)
(2) 92003-1
[SS]
128 Pipe Plug
(1/8 - 27 N.P.T x 1/4”)
(1) Y227-2-L
[C]
107 Plate
(models 6661X1, 1XB)
(2) 93707-1
[SS]
195A Button Head Screw
(1/4” - 20 x 1/4”)
(2) 94987
[SS]
108 Gasket (with notch)
(1) 92878
[B/Ny]
195B Button Head Screw
(1/4” - 20 x 3/8
”)
(1) 94987-1
[SS]
109 Piston
(1) 92011
[D]
201 Muffler
(1) 93110
[C]
110 “U” Cup
(3/16” x 1-3/8” OD)
(1) Y186-51
[B]
Key-Lube “O” Ring Lubricant
(1) 93706-1
111 Spool
(models 66610X, 66612X)
(1) 92005
[A]
Pak of 10 Key-Lube
637175
(models 66611X, 66613X)
(1) 93047
[C]
Service Kits include: Y212-101 (2) Screws (#10 - 32 x 1/4”)
used on units manufactured between 8/90 and 4/92 to retain
the pilot bushing.
112 Washer
(1.557” OD)
(5) 92877
[Z]
113 “O” Ring
(1/8” x 1-1/4” OD)
(5) Y325-214
[B]
114 “O” Ring
(3/32” x 1-9/16” OD)
(6) Y325-126
[B]
115 Spacer
(4) 92876
[Z]
116 Spacer
(1) 92006
[Z]
MAJOR VALVE DISASSEMBLY
1. Remove (107) plate (or leg depending on model), (108
and 117) gaskets.
2. On the side opposite the air inlet, push on the inner di-
ameter (111) spool. This will force the (109) piston out.
Continue pushing the (111) spool and remove. Check for
scratches and gouges.
3. Reach into the air section (exhaust side) and remove (116)
spacer, (115) spacers, (113) “O” rings, (114) “O” rings, (112)
washers, etc. Check for damaged “O” rings.
MAJOR VALVE REASSEMBLY
1. Replace (112) washer, (114) “O” ring and (113) “O” ring
onto (115) spacer and insert etc.
NOTE: Be careful to orient spacer legs away from
blocking internal ports.
2. Lubricate and carefully insert (111) spool.
3. Install (117) gasket and (107).
4. Lubricate and install (110) packing cup and insert (109)
piston into (air inlet side) cavity, the (110) packing cup
lips should point outward.
5. Install (108) gasket and (107).
MATERIAL CODE
[A] = Aluminum
[CI] = Cast Iron
[U] = Polyurethane
[B] = Nitrile
[D] = Acetal
[Z] = Zinc
[Bz] = Bronze
[NY] = Nylon
[C] = Carbon Steel [SS] = Stainless Steel
AIR MOTOR SECTION SERVICE
Service is divided into two parts − 1. Pilot Valve, 2. Major
Valve. GENERAL REASSEMBLY NOTES:
y
Air Motor Section Service is continued from Fluid Section
repair.
y
Inspect and replace old parts with new parts as neces-
sary. Look for deep scratches on metallic surfaces, and
nicks or cuts in “O” rings.
y
Take precautions to prevent cutting “O” rings upon instal-
lation.
y
Lubricate “O” rings with Key-Lube grease.
y
Do not over tighten fasteners, refer to torque specifica-
tion block on view.
y
Re-torque fasteners following restart.
PILOT VALVE DISASSEMBLY
1. Remove (104) retaining ring.
2. Remove (123) screws and (122) “O” rings.
3. Remove (118) piston rod, (121) sleeve bushing, (119) “O”
rings and (120) spacers from the (101) motor body.
4. Remove (103) sleeve and (102) “O” rings.
PILOT VALVE REASSEMBLY
1. Replace two (102) “O” rings if worn or damaged and rein-
stall (103) sleeve.
2. Install one of the (121) sleeve bushings, (119) “O” rings,
(120) spacers and the remaining (121) bushing.
3. Carefully push (118) pilot rod into bushings etc. and re-
tain on each end with the two (122) “O” rings, retain with
(123) screws.
4. Replace (104) retaining rings.
Indicates parts included in 637118-C Air Section Service Kit.
SERVICE KIT NOTE: Service Kit 637118-C is a general repair kit for all 1” and larger ARO diaphragm pump air motors. It contains extra “O” Rings and other
parts that may not be needed to service this model.
RELEASED 13/Nov/2018 12:24:02 GMT
