PARTS LIST / PE20X-X-X-B0S AIR SECTION
Indicates parts included in 637421 air section service kit shown below and items 70, 144, 175 and 180 shown on page 4.
MATERIAL CODE
[A] = Aluminum
[D] = Acetal
[Sp] = Santoprene
[B] = Nitrile
[I] = Iron
[SS] = Stainless Steel
[C] = Carbon 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 Lubriplate FML-2 grease.
y
Do not over-tighten fasteners, refer to torque specifi-
cation block on view.
y
Re-torque fasteners following restart.
Page 6 of 8
PE20X-X-X-B0S (en)
AIR MOTOR SECTION DISASSEMBLY
1.
Remove (160) air manifold, exposing (132 and 166) gas-
kets and (176) checks.
2.
Remove (121) plugs.
AIR MOTOR SECTION REASSEMBLY
1.
Clean and lubricate parts not being replaced from service
kit.
2.
Replace (173) “O” rings and assemble (121) plugs.
3.
Assemble (132 and 166) gaskets and (176) checks to (101)
center body.
4.
Assemble (160) air manifold to (101) center body, secur-
ing with (134) screws. NOTE: Tighten screws to 40 - 50 in.
lbs (4.5 - 5.6 Nm).
AIR MOTOR PARTS LIST
Item Description
(size)
(Qty) Part No.
[Mtl]
Item Description
(size)
(Qty) Part No.
[Mtl]
101 Center Body
(PE20A-XXX-XXX-B0S)
(1) 94028
[A]
(PE20S-XXX-XXX-B0S)
(1) 94109
[SS]
103 Bushing
(1) 94092
[D]
121 Plug
(2) 96613
[D]
127 90° Street Elbow
(1-1/2 - 11-1/2 N.P.T.)
(1) 94860
[C/I]
132 Gasket
(1) 94099
[B]
133 Lockwasher
(1/4”)
(PE20A-XXX-XXX-B0S)
(3) Y117-416-C [C]
(PE20S-XXX-XXX-B0S)
(3) Y14-416-T [SS]
134 Screw
(M6 - 1 - 6g x 30 mm)
(4) 96358
[SS]
146 “O” Ring
(3/32” x 1-1/16” o.d.)
(1) Y325-118
[B]
147 “O” Ring
(1/8” x 1/2” o.d.)
(2) Y325-202
[B]
160 Air Manifold
(1) 96612
[A]
166 Track Gasket
(1) 94026
[B]
173 “O” Ring
(1/16” x 1-3/8” o.d.)
(2) Y325-26
[B]
176 Diaphragm
(check valve)
(2) 94102
[Sp]
201 Muffler Kit
(includes item 127)
(1) 67213
Lubriplate FML-2 Grease
(1) 94276
Lubriplate Grease packets (10)
637308
Used on models PE20A-XXX-XXX-B0S only.
Used on models PE20S-XXX-XXX-B0S only.
