Ingersoll-Rand ARO PM30R C Series, Operator'S Manual, Page: 7 / 12

PM30R-XXX-XXX-CXX (en) Page 7 of 12
PARTS LIST / PM30R-X-X-CXX AIR SECTION

Indicates parts included in 637369 Air Section Service Kit shown below and items 70, 144, 175 and 180 shown on page 5.
MATERIAL CODE
[B] = Nitrile [P] = Polypropylene
[C] = Carbon Steel [SP] = Santoprene
[Ck] = Ceramic [SS] = Stainless Steel
[D] = Acetal [U] = Polyurethane
[I] = Iron
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.
y
SERVICE TOOLS - To aid in the installation of (168) “O”
rings onto the (167) pilot piston, use tool # 204130-T,
available from ARO.
PILOT VALVE DISASSEMBLY
1. A light tap on (118) actuator pin should expose the oppo-
site (121) sleeve, (167) pilot piston and other parts.
2. Remove (170) sleeve and Inspect inner bore of sleeve for
damage.
PILOT VALVE REASSEMBLY
1. Clean and lubricate parts not being replaced from service
kit.
2. Install new (171 and 172) “O” rings, replace (170) sleeve.
3. Install new (168) “O” rings and (169) seal - Note the lip di-
rection. Lubricate and replace (167).
4. Reassemble remaining parts, replace (173 and 174) “O”
rings.
MAJOR VALVE DISASSEMBLY
1. Remove (135) valve block and (233) adapter plate, ex-
posing (132 and 166) gaskets , (232) "O" ring and (176)
checks.
2. Remove (233) adapter plate, releasing (140) valve insert,
(141) valve plate, (199 and 200) gaskets and (232, 243 and
244) “O” rings.
3. Remove (136) end cap and (137) “O” ring, releasing (111)
spool.
MAJOR VALVE REASSEMBLY
1. Install new (138 and 139) “U” cups on (111) spool -
LIPS
MUST FACE EACH OTHER.
2. Insert (111) spool into (135) valve block.
3. Install (137) “O” ring on (136) end cap and assemble end
cap to (135) valve block, securing with (107) end plates
and (105) screws.
4. Install (140) valve insert and (141) valve plate into (135)
valve block.
NOTE:
Assemble (140) valve insert with
“dished” side toward (141) valve plate. Assemble (141)
valve plate with 2 identification dots toward (199 and
200) gaskets.
5. Assemble (232, 243 and 244) “O” rings, (199 and 200) gas-
kets and (233) adapter plate to (135) valve block.
6. Assemble (132 and 166) gaskets, (176) checks and (232)
“O” ring to (101) body.
7. Assemble (135) valve block and components to (101)
body, securing with (134) screws.
AIR MOTOR PARTS LIST
Item Description
(size)
Qty Part No. Mtl
101 Center Body (1) 97037 [P]
103 Bushing (1) 97394 [D]
105 Screw
(M6 x 1 - 6g x 180 mm)
(4) 95921 [SS]
107 End Plate (2) 95846 [SS]
111 Spool (1) 95651 [D]
118 Actuator Pin
(0.250” x 2.276” long)
(2) 94083 [SS]
121 Sleeve (2) 94084 [D]
126 Plug (1) 93897-1 [P]
127
900 St.Elbow
(1-1/2-11-1/2 NPT)
(1)
94860
[C/I]

132 Gasket (1) 94099 [B]
133 Washer
(M6)
(8) 95931 [SS]
134 Screw
(M6 x 1 - 6g x 35 mm)
(8) 95923 [SS]
135 Valve Block (1) 95789 [P]
136 End Cap (1) 95790 [P]

137 "O” Ring
(1/16” x 2” OD)
(1) Y325-32 [B]

138 “U” Cup
(3/16” x 1.792” OD)
(1) 95966 [B]

139 “U” Cup
(3/16” x 1-1/4” OD)
(1) Y186-50 [B]
140 Valve Insert (1) 95650 [Ck]
141 Valve Plate (1) 95659 [Ck]

166 Track Gasket (1) 94026 [B]
Item Description
(size)
Qty Part No. Mtl

167 Pilot Piston
(includes items 168 and 169)
(1) 67164 [D]
168 "O” Ring
(3/32” x 5/8” OD)
(2) 94433 [U]
169 “U” Cup
(1/8” x 7/8” OD)
(1) Y240-9 [B]
170 Piston Sleeve (1) 94081 [D]

171 “O” Ring
(3/32” x 1-1/8” OD)
(1) Y325-119 [B]

172 “O” Ring
(1/16” x 1-1/8” OD)
(1) Y325-22 [B]

173 “O” Ring
(1/16” x 1-3/8” OD)
(2) Y325-26 [B]

174 “O” Ring
(1/8” x 1/2” OD)
(2) Y325-202 [B]

176 Diaphragm
(check valve)
(2) 94102 [SP]

199 Track Gasket (1) 95666 [B]

200 Gasket (1) 95665 [B]
201
Muffler
(includes item 127)
(1) 67213

232 “O” Ring
(1/8” x 1/2” OD)
(2) Y325-202 [B]
233 Adapter Plate (1) 95761 [P]
236 Nut
(M6 x 1 -6g)
(4) 95924 [SS]

243 “O” Ring
(1/8” x 5/8” OD)
(1) Y325-204 [B]

244 “O” Ring
(1/8” x 7/8” OD)
(1) Y325-208 [B]
 
Lubriplate FML-2 Grease (1) 94276
Lubriplate Grease packets (10) 637308

Items included in Fluid Section Service Kit, see pages 5.