PARTS LIST / 6661AX-X-C AIR MOTOR SECTION
nIndicates parts included in
SERVICE KIT NOTE: Service Kit
It contains extra “O” Rings and extra parts that may not be needed to service this model.
ITEM | DESCRIPTION (Size in inches) | Qty | Part No. | [Mtl] |
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101 | Motor Body | (1) | 94743 | [A] |
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| (1) | 94741 | [CI] | |
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n102 | “O” Ring (1/16” x 1” o.d.) | (2) | [B] | |
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V103 | Sleeve | (1) | 94527 | [D] |
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n104 | Retaining Ring, TruArc (.925” i.d.) | (2) | [C] | |
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105 | Screw (1/4” - 20 x 5/8”) | (8) | [SS] | |
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106 | Lock Washer (1/4”) | (8) | [SS] | |
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107 | Plate | (2) | [SS] | |
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n108 | Gasket (with notch) | (1) | 92878 | [B/Ny] |
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V109 | Piston | (1) | 92011 | [D] |
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n110 | “U” Cup (3/16” x | (1) | [B] | |
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V111 | Spool | (1) | 92005 | [A] |
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| (1) | 93047 | [C] | |
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V112 | Washer (1.557” o.d.) | (5) | 92877 | [Z] |
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n113 | “O” Ring (1/8” x | (5) | [B] | |
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n114 | “O” Ring (3/32” x | (6) | [B] | |
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V115 | Spacer | (4) | 92876 | [Z] |
ITEM | DESCRIPTION (Size in inches) | Qty | Part No. | [Mtl] |
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V116 | Spacer | (1) | 92006 | [Z] |
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n117 | Gasket | (1) | 92004 | [B/Ny] |
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118 | Pilot Rod | (1) | [C] | |
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n119 | “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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n122 | “O” Ring (3/32” x 9/16” o.d.) | (2) | 94820 | [U] |
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n123 | Screw (#8 - 32 x 3/8”) | (4) | [C] | |
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124 | Screw (5/16” - 18 x | (12) | 93277 | [SS] |
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128 | Pipe Plug (1/8 - 27 N.P.T. x 1/4”) | (1) | [C] | |
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195 | Button Head Screw (1/4” - 20 x 1/4”) | (3) | 94987 | [SS] |
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201 | Muffler | (1) | 93110 | [C] |
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n | (1) |
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| Pak of 10 | (10) | 637175 |
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n | Service Kits include: | |||
| manufactured between 8/90 and 4/92 to retain the pilot bushing. | |||
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AIR MOTOR SECTION SERVICE
Service is divided into two parts - 1. Pilot Valve, 2. Major Valve.
GENERAL REASSEMBLY NOTES:
SAir Motor Section Service is continued from Fluid Section repair.
SInspect and replace old parts with new parts as necessary. Look for deep scratches on metallic surfaces, and nicks or cuts in “O” rings.
STake precautions to prevent cutting “O” rings upon installation.
SLubricate “O” rings with
SDo not
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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 | [CI] = | Cast Iron | [P] = | Polypropylene |
[B] = | Nitrile | [D] = | Acetal | [U] = | Polyurethane |
[Bz] = | Bronze | [N] = | Neoprene | [SS] = Stainless Steel | |
[C] = | Carbon Steel | [Ny] = | Nylon | [Z] = | Zinc |
MAJOR VALVE DISASSEMBLY
1.Remove (107) plate (or leg depending on model), (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
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 in- ternal ports.
2.Lubricate and carefully insert (111) spool.
3.Install (117) gasket and (107).
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).
V “Smart Parts” Keep these items on hand in addition to the Service Kits for fast repair and reduction of down time.
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