Summary of the content on the page No. 1
OPERATOR’S MANUAL 6662AX-X-C
RELEASED: 5-3-88
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
REVISED: 5-12-10
(REV. R)
2” DIAPHRAGM PUMP
1:1 RATIO (NON-METALLIC)
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
SERVICE KITS
Refer to Model Description Chart to match the pump material
options.
637118-C for Air Section repair (see page
Summary of the content on the page No. 2
OPERATING AND SAFETY PRECAUTIONS READ, UNDERSTAND, AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE. Safe handling practices must comply with local and EXCESSIVE AIR PRESSURE HAZARDOUS MATERIALS national laws and safety code requirements. S TATIC SPARK HAZARDOUS PRESSURE Obtain Material Safety Data Sheets on all materials from the supplier for proper handling instructions. WARNING EXPLOSION HAZARD. Models containing WARNING EXCESSIVE AIR PRESSURE. Can cause per- aluminum we
Summary of the content on the page No. 3
GENERAL DESCRIPTION MAINTENANCE The ARO diaphragm pump offers high volume delivery even Refer to the part views and descriptions as provided on page 4 at low air pressure and a broad range of material compatibility through 7 for parts identifi cation and Service Kit information. options available. Refer to the model and option chart. ARO Certain ARO “Smart Parts” are indicated which should be pumps feature stall resistant design, modular air motor / fl uid available for fast repair and reduct
Summary of the content on the page No. 4
PARTS LIST / 6662AX-X-C FLUID SECTION Fluid Section Service Kits include: Balls (see Ball Option, refer to -XX in chart below), Diaphragms (see Diaphragm Option, refer to -XX in chart below), 937061 Key-Lube grease, plus “O” Ring items: 2, 3, 4, 19 and 33. SEAT OPTIONS BALL OPTIONS 6662XX-XXX-C 6662XX-XXX-C (2-1/2” dia.) (Service Kit-XX) “21” “22” -XXX Seat Qty [Mtl] -XXXBall Qty[Mtl]-XXXBall Qty[Mtl] -2XX 96849 (4) [SS] -X1X 93358-1 (4) [N] -X5X 93358-5 (4) [E] -3XX 97171-1 (4) [P] -X2X
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PARTS LIST / 6662AX-X-C FLUID SECTION 1 3 8 5 36 37 01 9 38 33 6 7 34 4 2 26 Torque Sequence 24 39 29 2 5 22 19 21 33 28 124 TAB 15 1 34 7 6 27 FOR THE AIR MOTOR SECTION SEE PAGES 6 & 7 22 19 21 VIEW FOR -XX4 (PTFE DIAPHRAGM) CONFIGURATION ONLY PTFE Santoprene 8 7 33 (White) (Green) 24 35 36 33 25 TAB Figure 2 Fluid Side Air TORQUE REQUIREMENTS COLOR CODE Side DIAPHRAGM BALL Air NOTE: DO NOT OVERTIGHTEN FASTENERS MATERIAL COLOR COLOR Side (6) Diaphragm Nut 65 - 70 ft. lbs (88.1 - 9
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PARTS LIST / 6662AX-X-C AIR MOTOR SECTION Indicates parts included in 637118-C Air Section Service Kit. SERVICE KIT NOTE: Service Kit 637118-C is a general repair kit for all 1” and larger ARO diaphragm pump air motors. It contains extra O” Rings and other parts that may not be needed to service this model. Item Description (size) Qty Part No. [Mtl] Item Description (size) Qty Part No. [Mtl] 101 Motor Body (6662AX-XXX-C) (1) 94744 [A] 116 Spacer (1) 92006 [Z] (6662BX-XXX-C) (1) 94742 [
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1. PARTS LIST / 6662AX-X-C AIR MOTOR SECTION IMPORTANT BE CERTAIN TO ORIENT (115) SPACER LEGS AWAY FROM BLOCKING INTERNAL PORTS WHEN REASSEMBLING AIR SECTION. 117 105 111 116 106 115 114 113 107 112 MAJOR VALVE See cross section detail Figure 3. 101 195 104 195 121 102 123 103 102 108 109 106 104 105 126 107 PILOT VALVE 119 110 123 118 128 231 120 127 122 201 MAJOR VALVE CROSS SECTION DETAIL 109 110 112 114 113 115 111 116 TORQUE REQUIREMENTS NOTE: DO NOT OVERTIGHTEN FASTENERS
Summary of the content on the page No. 8
TROUBLE SHOOTING Product discharged from exhaust outlet. Low output volume, erratic fl ow, or no fl ow. Check for diaphragm rupture. Check air supply. Check tightness of diaphragm nut. Check for plugged outlet hose. Check for kinked (restrictive) outlet material hose. Air bubbles in product discharge. Check for kinked (restrictive) or collapsed inlet Check connections of suction plumbing. material hose. Check “O” rings between intake manifold and fl uid caps. Check for pump cavitation
