ARO ARO 650718-C Руководство по эксплуатации - Страница 6

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

Item Description

(size)

101 Motor Body

(includes items 195)

102 "O" Ring

(0.07" x 1.25" o.d.)

103 Sleeve

104 Retaining Ring

(1-5/32 i.d.)

105 Screw / Washer

(1/4" - 20 x 5/8")

107 Plate

108 Gasket

(with notch)

109 Piston

110 "U" Cup

(3/16" x 1-3/8" o.d.)

111 Spool

112 Washer

(1.556" o.d.)

113 "O" Ring

(1/8" x 1-1/4" o.d.)

114 "O" Ring

(3/32" x 1-9/16" o.d.)

115 Spacer

116 Spacer

117 Gasket

"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

[B] = Nitrile

[D] = Acetal

[Bz] = Bronze

[Ny] = Nylon

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 neces-

sary. Look for deep scratches on metallic surfaces, and

nicks or cuts in "O" rings.

Take precautions to prevent cutting "O" rings upon instal-

lation.

Lubricate "O" rings with Key-Lube grease or equivalent.

Do not over-tighten fasteners. Refer to torque specifi ca-

tion block on view.

Re-torque fasteners following restart.

PILOT VALVE DISASSEMBLY

Remove (104) retaining ring.

Remove (123) screws and (122) "O" rings.

Remove (118) pilot rod, (121) sleeve bushing, (119) "O"

rings and (120) spacers from the (101) motor body.

Remove (103) sleeve and (102) "O" rings.

Page 6 of 8

PARTS LIST / 650718-C AIR MOTOR SECTION

AIR MOTOR PARTS LIST

(Qty) Part No.

[Mtl]

(1) 93161

[A]

(2) 92960

[B]

(1) 94528

[D]

(2) Y145-26

[C]

(8) 93860

[C]

(2) 93707-1

[SS]

(1) 92878

[B/Ny]

(1) 92011

[D]

(1) Y186-51

[B]

(1) 92005

[A]

(5) 92877

[Z]

(5) Y325-214

[B]

(6) Y325-126

[B]

(4) 92876

[Z]

(1) 92006

[Z]

(1) 92004

[B/Ny]

[SS] = Stainless Steel

[U] = Polyurethane

[Z] = Zinc

Item Description

(size)

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

(1/2 - 14 N.P.T. x 17/32")

127 90° Street Elbow

(3/4 - 14 N.P.T.)

128 Pipe Plug

(1/8 - 27 N.P.T. x 1/4")

195 Button Head Screw

(1/4" - 20 x 1/4")

196 Button Head Screw

(1/4" - 20 x 3/8")

201 Muffl er

Key-Lube "O" Ring Lubricant

Key-Lube, 10 Pack

PILOT VALVE REASSEMBLY

Replace two (102) "O" rings, if worn or damaged, and rein-

stall (103) sleeve.

Install one of the (121) sleeve bushings, (119) "O" rings,

(120) spacers and the remaining (121) bushing.

Carefully push (118) pilot rod into bushing etc. and retain

on each end with the two (122) "O" rings. Retain with (123)

screws.

Replace (104) retaining rings.

MAJOR VALVE DISASSEMBLY

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

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.

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"

rings with Key-Lube or equivalent when reassembling.

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.

Lubricate and carefully insert (111) spool.

Install (117) gasket and (107) plate.

Lubricate and install (110) packing cup and insert (109)

piston into (air inlet side) cavity, the (110) packing cup

lips should point outward.

Install (108) gasket and replace (107) plate.

(Qty) Part No.

[Mtl]

(1) 93309-2

[C]

(4) 93075

[U]

(3) 115959

[Z]

(2) 98723-2

[Bz]

(2) 94820

[U]

(4) Y154-41

[C]

(1) Y227-5-L

[C]

(1) Y43-5-C

[C]

(1) Y227-2-L

[C]

(2) 94987

[SS]

(1) 94987-1

[SS]

(1) 350-568

[C]

(1) 93706-1

637175

650718-C (en)