Ingersoll-Rand ARO 650710-C - Manual (Page 6)

650710ĆC Page 6 of 8
PARTS LIST / AIR MOTOR SECTION
n Indicates parts included in 637118ĆC Air Section Service Kit.
Item Description (size in inches) Qty Part No. [Mtl] Item Description (size in inches) Qty Part No. [Mtl]
101 Motor Body (includes items 195 and 196) (1) 93161 [A]
V 102 O" Ring (.07" x 1.25" o.d.) (2) 92960 [B]
V 103 Sleeve (1) 94528 [D]
n 104 Retaining Ring, TruArc (1Ć5/32" i.d.) (2) Y145Ć26 [C]
105 Screw / Washer (1/4" Ć 20 x 5/8") (8) 93860 [C]
106 Lock Washer (1/4") (1) Y14Ć416ĆT [SS]
107 Plate (2) 93707Ć1 [SS]
n 108 Gasket (with notch) (1) 92878 [B/NY]
V 109 Piston (1) 92011 [D]
n 110 U" Cup (3/16" x 1Ć3/8" o.d.) (1) Y186Ć51 [B]
V 111 Spool (1) 92005 [A]
112 Washer (1.556" o.d.) (5) 92877 [Z]
n 113 O" Ring (small) (1/8" x 1Ć1/4" o.d.) (5) Y325Ć214 [B]
n 114 O" Ring (large) (3/32" x 1Ć9/16" o.d.) (6) Y325Ć126 [B]
V 115 Spacer (4) 92876 [Z]
V 116 Spacer (1) 92006 [Z]
n 117 Gasket (1) 92004 [B/NY]
118 Pilot Rod (1) 93309Ć2 [C]
n 119 O" Ring (1/8" x 3/4" o.d.) (4) 93075 [U]
120 Spacer (3) 115959 [Z]
121 Sleeve Bushing (2) 98723Ć2 [Bz]
n 122 O" Ring (3/32" x 9/16" o.d.) (2) 94820 [U]
n 123 Screw (#8 Ć 32 x 3/8") (4) Y154Ć41 [C]
126 Pipe Plug (1/2 Ć 14 P.T.F. x 17/32") (1) Y227Ć5ĆL [C]
127 Elbow (3/4 Ć 14 N.P.T. x 1Ć7/8") (1) Y43Ć5ĆC [C]
128 Pipe Plug (1/8 Ć 27 P.T.F. x 1/4") (1) Y227Ć2ĆL [C]
195 Button Head Screw (1/4" Ć 20 x 1/4") (2) 94987 [SS]
196 Button Head Screw (1/4" Ć 20 x 3/8") (1) 94987Ć1 [SS]
201 Muffler (1) 93139 [P]
n KeyĆLube O" Ring Lubricant (1) 93706Ć1
10 Pak of KeyĆLube 637175
V Smart Parts" Keep these items on hand in addition to the Service Kits for fast repair and reduction of down time.
AIR MOTOR SECTION SERVICE
Service is divided into two parts - 1. Pilot Valve, 2. Major Valve.
GENERAL REASSEMBLY NOTES:
S Air Motor Section Service is continued from Fluid Section repair.
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 Take precautions to prevent cutting O" rings upon installation.
S Lubricate ``O" rings with KeyĆLube or equivalent.
S Do not overĆtighten fasteners, refer to torque requirement block on
view.
S ReĆtorque fasteners following restart.
PILOT VALVE DISASSEMBLY
1. Remove (104) retaining ring.
2. Remove (123) screws and (122) O" rings.
3. Remove (118) piston rod, (121) sleeve bushing, (119) O" rings and
(120) spacers from the (101) motor body.
4. Remove (103) sleeve and (102) O" rings.
PILOT VALVE REASSEMBLY
1. Replace two (102) O" rings if worn or damaged and reinstall (103)
sleeve.
2. Install one of the (121) sleeve bushings, (119) O" rings, (120)
spacers and the remaining (121) bushing.
3. Carefully push (118) pilot rod into bushings etc. and retain on each
end with the two (122) O" rings, retain with (123) screws.
4. Replace (104) retaining rings.
MATERIAL CODE
[A] = Aluminum [D] = Acetal [SS] = Stainless Steel
[B] = Nitrile [NY] = Nylon [U] = Polyurethane
[Bz] = Bronze [P] = Polypropylene [Z] = Zinc
[C] = Carbon Steel
MAJOR VALVE DISASSEMBLY
1. Remove (107) plate and (108 and 117) gaskets.
2. On the side opposite the air inlet, push on the inner diameter (111)
spool. This will force the (109) piston out. Continue pushing the (111)
spool and remove. Check for scratches and gouges.
3. Reach into the air section (exhaust side) and remove (116) spacer,
(115) spacers, (113) O" rings, (114) O" rings, (112) washers, etc.
Check for damaged O" rings.
MAJOR VALVE REASSEMBLY
NOTE: Replace worn parts as necessary. Lubricate O" ring with
KeyĆLube or equivalent when reassembling.
1. Replace (112) washer, (114) O" ring and (113) O" ring onto (115)
spacer and insert etc.
NOTE: Be careful to orient spacer legs away from blocking internal
ports.
2. Lubricate and carefully insert (111) spool.
3. Install (117) gasket and (107) plate.
4. Lubricate and install (110) packing cup and insert (109) piston into
(air inlet side) cavity, the (110) packing cup lips should point outward.
5. Install (108) gasket and replace (107) plate.