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66605X-X (en)
PARTS LIST / 66605X-X AIR MOTOR SECTION
Note 1: Part no. 93339-1 one-piece gasket replaces the following parts (not shown) in
models manufactured prior to October 1988, Y325-10 (4), Y325-12, 93093, 93094,
Y325-8.
Note 2: The (129
) 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 - 141. Order part no. 66362.
AIR SECTION PARTS
Item
Description
(size in inches)
Qty Part No . [Mtl]
133 Washer
(9/32” ID)
(4) 93096
[SS]
134
Bolt
(1/4” - 20 x 5”)
(4) Y6-419-T
[SS]
135
Valve Block
(1) 93090
[P]
136
Plug
(1) 93086
[D]
137 “O” Ring
(3/32” x 1-1/2” OD)
(1) Y325-125
[B]
138 Packing, “U” Cup
(1/8” x 1” OD)
(1) 94395
[U]
139 Packing, “U” Cup
(1/8” x 1 .427” OD)
(1) 96383
[U]
140 Valve Insert
(1) 93276
[CK]
141 Valve Plate
(1) 93275
[CK]
142 Washer
(2) 116038
[Z]
143 Plate
(2) 93089
[SS]
201 Muffler
(see note 2)
93110
[C]
Key-Lube “O” Ring Lubricant
93706-1
10 Pack of Key-Lube
637175
Indicates parts included in 637141 Air Section Repair Kit .
FLUID SECTION REASSEMBLY
y
Reassemble in reverse order.
y
Lubricate (1) connecting rod and (2) “O” ring with Key-
Lube or equivalent “O” ring lubricant.
y
Install (5) diaphragm washers with ID chamfer toward di-
aphragm.
y
When replacing PTFE diaphragms, install the 93465 San-
toprene diaphragm behind the PTFE diaphragm.
y
When installing (41) cage, ball guides must line up with
notches in (21) seat to prevent damage.
y
Before installing (35), (34) manifolds, (19) “O” ring should
be properly seated on the OD of (41) ball cage.
y
Before tightening (39) nut and (38) carriage bolts on (36)
swivels, attach the manifold / swivel assembly to the fluid
caps. Rotate (36) swivel to desired position and tighten
each of the nuts approximately 8 - 9 turns, then finish
tightening (62) nuts.
DIAPHRAGM PUMP SERVICE
GENERAL SERVICE NOTES:
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
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 be
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) PTFE models only]
diaphragm(s) and (5) diaphragm washer from (1) dia-
phragm connecting rod.
7. Remove (1) connecting rod from air motor.
8. Carefully remove remaining (6) diaphragm nut, (8) [(7)
PTFE models] diaphragm and (5) diaphragm washer
from (1) connecting rod. Do not mar surface of connect-
ing rod.
9. Remove (2) “O” ring from connecting rod.
10. Remove (37) clamps from top and bottom manifold /
swivel assemblies.
11. Remove (33) “O” rings from (36) swivels.
Item Description
(size)
Qty Part No . [Mtl]
101 Motor Body
(1) 93091
[P]
102 ‘‘O” Ring
(3/32” x 1” OD)
(2) Y325-117 [B]
103 Sleeve
(1) 93087
[Bz]
104 Snap Ring
(13/16”)
(2) 37285
[C]
111 Spool
(1) 93085
[D]
118 Pilot Rod
(1) 93088
[C]
119 “O” Ring
(1/8” x 3/4” OD)
(4) 93075
[U]
120 Spacer
(3) 115959
[Z]
122 Snap Ring
(1/2”)
(2) 77802
[C]
124 Stud
(5/16” - 18 x 1-17/32”) (see page 5)
(8) 93249
[SS]
129 Muffler Assembly
(1) 66972
[P]
129
Exhaust Cover
(see note 2)
93092
[PS]
130 Gasket
(1) 93107
[SY]
131 Bolt
(5/16” - 18 x 1-1/4”)
(8) 93095
[SS]
132 Gasket
(see note 1)
(1) 93339-1
[B]
MATERIAL CODE
[B] = Nitrile
[D] = Acetal
[SY] = Syn-Seal
[Bz] = Bronze
[P] = Polypropylene
[U] = Polyurethane
[C] = Carbon Steel [PS] = Polyester
[Z] = Zinc
[CK] = Ceramic
[SS] = Stainless Steel
