PARTS LIST / 650719-C AIR MOTOR SECTION
qIndicates parts included in
AIR MOTOR PARTS LIST
Item | Description (size) | (Qty) | Part No. | [Mtl] |
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101 | Motor Body (includes items 195) | (1) | 93161 | [A] |
o 102 | “O” Ring (0.07” x 1.25” o.d.) | (2) | 92960 | [B] |
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o 103 | Sleeve | (1) | 94528 | [D] |
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q 104 | Retaining Ring | (2) | [C] | |
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105 | Screw / Washer (1/4” - 20 x 5/8”) | (8) | 93860 | [C] |
107 | Plate | (2) | [SS] | |
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q 108 | Gasket (with notch) | (1) | 92878 | [B/Ny] |
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o 109 | Piston | (1) | 92011 | [D] |
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q 110 | “U” Cup (3/16” x | (1) | [B] | |
o 111 | Spool | (1) | 92005 | [A] |
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112 | Washer (1.556” o.d.) | (5) | 92877 | [Z] |
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q 113 | “O” Ring (1/8” x | (5) | [B] | |
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q 114 | “O” Ring (3/32” x | (6) | [B] | |
o 115 | Spacer | (4) | 92876 | [Z] |
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o 116 | Spacer | (1) | 92006 | [Z] |
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q 117 | Gasket | (1) | 92004 | [B/Ny] |
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Item | Description (size) | (Qty) | Part No. | [Mtl] |
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118 | Pilot Rod | (1) | [C] | |
q 119 | “O” Ring (1/8” x 3/4” o.d.) | (4) | 93075 | [U] |
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120 | Spacer | (3) | 115959 | [Z] |
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121 | Sleeve Bushing | (2) | [Bz] | |
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q 122 | “O” Ring (3/32” x 9/16” o.d.) | (2) | 94820 | [U] |
q 123 | Screw (#8 - 32 x 3/8”) | (4) | [C] | |
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126 | Pipe Plug (1/2 - 14 N.P.T. x 17/32”) | (1) | [C] | |
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127 | 90° Street Elbow (3/4 - 14 N.P.T.) | (1) | [C] | |
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128 | Pipe Plug (1/8 - 27 N.P.T. x 1/4”) | (1) | [C] | |
195 | Button Head Screw (1/4” - 20 x 1/4”) | (2) | 94987 | [SS] |
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196 | Button Head Screw (1/4” - 20 x 3/8”) | (1) | [SS] | |
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201 | Muffler | (1) | [C] | |
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q | (1) |
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| 637175 |
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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
yDo not
y
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
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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