V
Smart Parts" keep these items on hand in addition to the Service Kits for fast repair and reduction of down time.
66605XĆX
PAGE 6 OF 8
PARTS LIST / 66605X-X AIR MOTOR SECTION
(
n
) Indicates parts included in 637141 Air Section Repair Kit.
AIR SECTION PARTS
ITEM DESCRIPTION
(Size in Inches)
QTY
PART NO.
[MTL]
ITEM DESCRIPTION
(Size In Inches)
QTY
PART NO.
[MTL]
101 Motor Body
(1) 93091
[P]
n
102 O" Ring
(3/32" x 1" o.d.)
(2) Y325Ć117
[B]
j
103 Sleeve
(1) 93087
[Bz]
j
104 Snap Ring
(13/16")
(2) 37285
[C]
111 Spool
(1) 93085
[D]
118 Pilot Rod
(1) 93088
[C]
n
119 O" Ring
(1/8" x 3/4" o.d.)
(4) 93075
[U]
j
120 Spacer
(3) 115959
[Z]
n
122 Snap Ring
(1/2")
(2) 77802
[C]
124 Stud
(5/16" Ć 18 x 1Ć17/32") shown pg. 5
(8) 93249
[SS]
129 Muffler Assembly
(1) 66972
[P]
129
l
Exhaust Cover
(see note 2)
93092
[PS]
n
130 Gasket
(1) 93107
[SY]
131 Bolt
(5/16" Ć 18 x 1Ć1/4")
(8) 93095
[SS]
n
132 Gasket
(see note 1)
(1) 93339Ć1
[B]
133 Washer
(9/32" i.d.)
(4) 93096
[SS]
134 Bolt
(1/4" Ć 20 x 5")
(4) Y6Ć419ĆT
[SS]
135 Valve Block
(1) 93090
[P]
136 Plug
(1) 93086
[UH]
n
137 O" Ring
(3/32" x 1Ć1/2" o.d.)
(1) Y325Ć125
[B]
n
138 Packing, U" Cup
(1/8" x 1" o.d.)
(1) 94395
[U]
n
139 Packing, U" Cup
(1/8" x 1.427" o.d.)
(1) 93116
[B]
n
140 Valve Insert
(1) 93276
[CK]
n
141 Valve Plate
(1) 93275
[CK]
142 Washer
(2) 116038
[Z]
143 Plate
(2) 93089
[SS]
201 Muffler
(see note 2)
93110
[C]
n
Keylube O" Ring Lubricant
93706Ć1
10 Pack of Keylube
637175
DIAPHRAGM PUMP SERVICE
GENERALSERVICE NOTES:
S
Inspect and replace old parts with new parts as necessary. Look for
deep scratches on metallic surfaces, and nicks or cuts in O" rings.
S
7/16" Wrench, 1/2" Wrench, 7/16" Socket, 1/2" Socket, Torque
Wrench (measuring inch pounds), O" ring Pick.
FLUID SECTION DISASSEMBLY
1. Remove (34) top manifold / (36) swivel assembly.
Note: Manifold options involve single piece manifolds (60 / 61) or three
piece swivel type manifolds with clamps.
2. Remove (41) ball cages, (22) balls, (19 and 20) ``O" rings and (21)
seats. Note: If cages are difficult to remove at this step, it may may
helpful to proceed through step 5 and remove them once they are
accessible from the inside of the fluid cap.
3. Remove (35) bottom manifolds / (36) swivel assembly.
4. Remove (19) O" rings, (21) seats and (22) balls.
5. Remove (15) fluid caps.
6. Remove (6) diaphragm nut, (8) [(7) Teflon Models only] diaĆ
phragm(s) and (5) diaphragm washer from (1) diaphragm connectĆ
ing rod.
7. Remove (1) connecting rod from air motor.
8. Carefully remove remaining (6) diaphragm nut, (8) [(7) Teflon ModĆ
els] diaphragm and (5) diaphragm washer from (1) connecting rod.
Do not mar surface of connecting rod.
9. Remove (2) O" ring from connecting rod.
10. Remove (37) clamps from top and bottom manifold / swivel assemĆ
blies.
11. Remove (33) O" rings from (36) swivels.
Note 1: Part No.93339Ć1 OneĆPiece Gasket replaces the following parts (not shown) in
models manufactured prior to October 1988, Y325Ć10 (4), Y325Ć12, 93093, 93094,
Y325Ć8.
Note 2: The (129
l
) Exhaust Cover and (201) Muffler were standard until 9/92. They are
available separately for service or piped exhaust applications.
Note 3: A Major Valve Service Assembly is available separately which includes items: 111,
132, 135 Ć 141. Order part no 66362.
MATERIAL CODE
[B] = Nitrile
[D] = Acetal
[SY] = SynĆSeal
[Bz] = Bronze
[P] = Polypropylene
[U] = Polyurethane
[C] = Carbon Steel
[PS] = Polyester
[UH] = UHMWĆPE
[CK] = Ceramic
[SS] = Stainless Steel
[Z] = Zinc
FLUID SECTION REASSEMBLY
S
Reassemble In reverse order.
S
Lubricate (1) connecting rod and (2) O" ring with KeyĆLube or
equivalent O" ring lubricant.
S
Install (5) diaphragm washers with i.d. chamfer toward diaphragm.
S
When replacing Teflon diaphragms, install the 93465 Santoprene
diaphragm behind the Teflon diaphragm.
S
When installing (41) cage, ball guides must line up with notches in
(21) seat to prevent damage.
S
Before installing (35), (34) manifolds, (19) O" ring should be propĆ
erly seated on the o.d. of (41) ball cage.
S
Before tightening (39) nut on (38) carriage bolts on (36) swivels, atĆ
tach the manifold / swivel assembly to the fluid caps. Rotate (36)
swivel to desired position and tighten each of the nuts approx. 8 Ć 9
turns, then finish tightening (29) nuts.
