ARO ARO 666250-XXX-C Operatör El Kitabı - Sayfa 6
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PARTS LIST / 6662XX-XXX-C AIR MOTOR SECTION
Indicates parts included in 637434 air section service kit.
Item Description
(size)
101 Motor Body
102 "O" Ring
(1/16" x 1-1/4" o.d.)
103 Sleeve
104 Retaining Ring
(1-5/32" i.d.)
105 Screw / Lockwasher
(1/4" - 20 x 5/8")
(models 6662X0-XXX-C, 6662X1-XXX-C
and 6662X2-XXX-C)
Cap Screw
(1/4" - 20 x 5/8") (models
6662XA-XXX-C, 6662XB-XXX-C and
6662XC-XXX-C)
106 Lockwasher
(1/4") (models 6662XA-
XXX-C, 6662XB-XXX-C and 6662XC-XXX-C)
107 Plate
108 Gasket
(with notch)
109 Piston
110 "U" Cup
(3/16" x 2-1/8" o.d.)
111 Spool
112 Washer
(2.055" o.d.)
113 "O" Ring
(1/8" x 1-3/4" o.d.)
114 "O" Ring
(3/32" x 2-1/16" o.d.)
115 Spacer
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[Bz] = Bronze
[C] = Carbon Steel
[D] = Acetal
AIR MOTOR SECTION SERVICE
Service is divided into two parts - 1. Pilot Valve, 2. Major Valve.
GENERAL REASSEMBLY NOTES:
Air Motor Section service is continued from Fluid Section repair.
Inspect and replace old parts with new parts as necessary. Look
for deep scratches on metallic surfaces, and nicks or cuts in "O"
rings.
Take precautions to prevent cutting "O" rings upon installation.
Lubricate "O" rings with Key-Lube.
Do not over-tighten fasteners. Refer to torque specifi cation
block on view.
Re-torque 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.
"Smart Parts", keep these items on hand in addition to the service kits for fast repair and reduction of down time.
Page 6 of 8
AIR MOTOR PARTS
Qty Part No.
Mtl
(1) 96374
[A]
(2) Y325-24
[B]
(1) 94528
[D]
(2) Y145-26
[C]
(8) 93860
[C]
(8) Y6-42-T
[SS]
(8) Y14-416-T
[SS]
(2) 96424
[SS]
(1) 96426
[B/Ny]
(1) 96422
[D]
(1) Y186-55
[B]
(1) 96421
[A]
(5) 93251
[GPS]
(5) Y325-222
[B]
(6) Y325-134
[B]
(4) 93250
[GPS]
[GPS] = Glass fi lled Polyphenylene Sulfi de
[Ny] = Nylon
[SS] = Stainless Steel
[U] = Polyurethane
[Z] = Zinc
Item Description
(size)
116 Spacer
117 Gasket
118 Pilot Rod
119 "O" Ring
(1/8" x 3/4" o.d.)
120 Spacer
121 Sleeve Bushing
122 "O" Ring
(3/32" x 9/16" o.d.)
123 Screw
(#8 - 32 x 3/8")
126 Pipe Plug
(3/4 - 14 PTF x 17/32")
127 Pipe Fitting
(1-1/4 - 11-1/2 NPT x 1-1/2 -
11-1/2 NPT)
128 Pipe Plug
(1/8 - 27 PTF x 1/4")
197 Button Head Screw
(1/4" - 20 x 1/4")
198 Button Head Screw
(1/4" - 20 x 3/8")
201 Muffl er Kit
(includes item 127)
Key-Lube "O" Ring Lubricant
10 Pak of Key-Lube
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.
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
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) wash-
ers. 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 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).
Qty Part No.
Mtl
(1) 96420
[D]
(1) 96425
[B/Ny]
(1) 93309-2
[C]
(4) 93075
[U]
(3) 115959
[Z]
(2) 98723-2
[Bz]
(2) 94820
[U]
(4) Y154-41
[C]
(1) Y227-6-L
[C]
(1) 96451
[C]
(1) Y227-2-L
[C]
(2) 94987
[SS]
(1) 94987-1
[SS]
(1) 67389
(1) 93706-1
(10) 637175
666250-XXX-C (en)