Ingersoll-Rand manual PARTS LIST / 650719-CAIR MOTOR SECTION, Air Motor Parts List

PARTS LIST / 650719-C AIR MOTOR SECTION

qIndicates parts included in 637118-C air section repair kit.

AIR MOTOR PARTS LIST

Item	Description (size)	(Qty)	Part No.	[Mtl]
101	Motor Body (includes items 195)	(1)	93161	[A]
o 102	“O” Ring (0.07” x 1.25” o.d.)	(2)	92960	[B]
o 103	Sleeve	(1)	94528	[D]
q 104	Retaining Ring (1-5/32 i.d.)	(2)	Y145-26	[C]
105	Screw / Washer (1/4” - 20 x 5/8”)	(8)	93860	[C]
107	Plate	(2)	93707-1	[SS]
q 108	Gasket (with notch)	(1)	92878	[B/Ny]
o 109	Piston	(1)	92011	[D]
q 110	“U” Cup (3/16” x 1-3/8” o.d.)	(1)	Y186-51	[B]
o 111	Spool	(1)	92005	[A]
112	Washer (1.556” o.d.)	(5)	92877	[Z]
q 113	“O” Ring (1/8” x 1-1/4” o.d.)	(5)	Y325-214	[B]
q 114	“O” Ring (3/32” x 1-9/16” o.d.)	(6)	Y325-126	[B]
o 115	Spacer	(4)	92876	[Z]
o 116	Spacer	(1)	92006	[Z]
q 117	Gasket	(1)	92004	[B/Ny]

Item	Description (size)	(Qty)	Part No.	[Mtl]
118	Pilot Rod	(1)	93309-2	[C]
q 119	“O” Ring (1/8” x 3/4” o.d.)	(4)	93075	[U]
120	Spacer	(3)	115959	[Z]
121	Sleeve Bushing	(2)	98723-2	[Bz]
q 122	“O” Ring (3/32” x 9/16” o.d.)	(2)	94820	[U]
q 123	Screw (#8 - 32 x 3/8”)	(4)	Y154-41	[C]
126	Pipe Plug (1/2 - 14 N.P.T. x 17/32”)	(1)	Y227-5-L	[C]
127	90° Street Elbow (3/4 - 14 N.P.T.)	(1)	Y43-5-C	[C]
128	Pipe Plug (1/8 - 27 N.P.T. x 1/4”)	(1)	Y227-2-L	[C]
195	Button Head Screw (1/4” - 20 x 1/4”)	(2)	94987	[SS]
196	Button Head Screw (1/4” - 20 x 3/8”)	(1)	94987-1	[SS]
201	Muffler	(1)	350-568	[C]
q	Key-Lube “O” Ring Lubricant	(1)	93706-1
	Key-Lube, 10 Pack		637175

o“Smart Parts”, keep these items on hand in addition to the service kit for fast repair and reduction of down time.

MATERIAL CODE

[A]	=	Aluminum	[C]	=	Carbon Steel	[SS]	=	Stainless Steel
[B]	=	Nitrile	[D]	=	Acetal	[U]	=	Polyurethane
[Bz]	=	Bronze	[Ny] =		Nylon	[Z]	=	Zinc

AIR MOTOR SECTION SERVICE

Service is divided into two parts - 1. Pilot Valve, 2. Major Valve.

GENERAL REASSEMBLY NOTES:

yAir Motor Section service is continued from Fluid Section repair.

yInspect and replace old parts with new parts as neces- sary. Look for deep scratches on metallic surfaces, and nicks or cuts in “O” rings.

yTake precautions to prevent cutting “O” rings upon instal- lation.

yLubricate “O” rings with Key-Lube grease or equivalent.

yDo not over-tighten fasteners. Refer to torque specifica- tion block on view.

yRe-torque fasteners following restart.

PILOT VALVE REASSEMBLY

1.Replace two (102) “O” rings, if worn or damaged, and rein- stall (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 bushing etc. and retain on each end with the two (122) “O” rings. Retain with (123) screws.

4.Replace (104) retaining rings.

MAJOR VALVE DISASSEMBLY

1.Remove (107) plate and (108 and 117) gaskets.

2.On the side opposite the air inlet, push on the inner di- ameter of (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.

PILOT VALVE DISASSEMBLY

1.Remove (104) retaining ring.

2.Remove (123) screws and (122) “O” rings.

3.Remove (118) pilot rod, (121) sleeve bushing, (119) “O” rings and (120) spacers from the (101) motor body.

4.Remove (103) sleeve and (102) “O” rings.

MAJOR VALVE REASSEMBLY

NOTE: Replace worn parts as necessary. Lubricate “O” rings with Key-Lube 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 ori- ent 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.

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