Ingersoll-Rand ARO PX20P A Series, Руководство оператора

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PX20P-XXX-XXX-AXXX (en) Page 7 of 12
MATERIAL CODE
[AO] = Alumina Oxide
[B]
= Nitrile
[C] = Carbon Steel
[D] = Acetal
[GP] = Groundable Polypropylene
MATERIAL CODE
[I] = Iron
[P] = Polypropylene
[SP] = Santoprene
“
[SS] = Stainless Steel
[U] = Polyurethane
PARTS LIST / PX20X-XXX-XXX-AXXX AIR SECTION
9
Indicates parts included in 637369 Air Section Service Kit shown below and items (70), (144), (175), (180), (237) and (238) shown on page 5.
 Indicates items included in Fluid Section Service Kit, see page 5.
 Used on models PE20P-XXX-XXX-ASX only.
AIR MOTOR PARTS LIST
Item Description
(size)
Qty Part No. Mtl

76 Pipe Plug
(1/8 - 27 N.P.T. x 0.27")
(1) Y17-50-S [SS]
101 Center Body
(PX20E)
(1) 97044 [GP]
(PX20P)
(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]
127 90o St. Elbow
(1-1/2 - 11-1/2 N.P.T.)
(1) 94860 [C/I]
3 132 Gasket (1) 94099 [B]
133
Washer
(M6) (PX 20E)
(7)
95931 [SS]
(PX20P)
(8)
134 Screw
(M6 x 1 - 6g x 35 mm)
(8) 95923 [SS]
135
Valve Block
(PD20P)
(1) 95789 [P]
(PE20P)
(1) 95789-1 [P]
(PD20E)
(1) 95789-2 [GP]
136 End Cap (1) 95790 [P]
3 137 "O” Ring
(1/16” x 2” OD)
(1) Y325-32 [B]
3 138 "U” Cup
(3/16” x 1.792” OD)
(1) 95966 [B]
3
139 "U” Cup
(3/16” x 1/4” OD)
(1) Y186-50 [B]
140 Valve Insert (1) 95650 [AO]
141 Valve Plate (1) 95659 [AO]
3 146 "O” Ring
(1/8” x 7/8” OD)
(1) Y325-208 [B]
Item Description
(size)
Qty Part No. Mtl
3
147 "O” Ring
(1/8” x 5/8” OD)
(1) Y325-204 [B]
3
166 Track Gasket (1) 94026 [B]
3
167 Pilot Piston
(includes 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]
3 171 "O” Ring
(3/32” x 1-1/8” OD)
(1) Y325-119 [B]
3 172 "O” Ring
(1/16” x 1-1/8” OD)
(1) Y325-22 [B]
3 173 "O” Ring
(1/16” x 1-3/8” OD)
(2) Y325-26 [B]

3
174 "O” Ring
(1/8” x 1/2” OD)
(2) Y325-202 [B]
3 176 Diaphragm
(check valve)
(2) 94102 [SP]
3 199 Track Gasket
(1) 95666 [B]
3 200 Gasket
(1) 95665 [B]
201 Muffler
(includes item 127)
(1) 67123
3
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]
 3 Lubriplate
“
FML-2 Grease (1) 94276
Lubriplate
“
Grease Packets
(10)
637308
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 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 specifica-
tion block on view.
y
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) should expose the opposite (121)
sleeve, (167) pilot piston and other parts.
2. Remove (170) sleeve, inspect inner bore of sleeve for
damage.
PILOT VALVE REASSEMBLY
1. Clean and lubricate parts not being replaced from ser-
vice kit.
2. Install new (171 and 172) “O” rings, replace (170) sleeve.
3. Install new (168) “O” rings and (169) “U” cup. Note the lip
direction. Lubricate and replace (167) pilot piston.
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 (146, 147
and 232) “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.
NOTE: Tighten (105) screws to 35 - 40 in. lbs (4.0 - 4.5 Nm).
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 iden-
ti fi cation dots toward (199 and 200) gaskets.
5. Assemble (146, 147 and 232) “O” rings, (199 and 200)
gaskets 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.
NOTE:
Tighten (134) screws to 35 - 40 in. lbs (4.0 - 4.5 Nm).