Ingersoll-Rand 72643D manual 3” AIR MOTOR, 50 1 RATIO, 2 1/4” STROKE, Service Kits, Pump Data

OPERATOR’S MANUAL			72643–D
INCLUDING:￿SERVICE KITS, GENERAL DESCRIPTION & TROUBLESHOOTING			72654–X–D
ALSO INCLUDE MANUALS: 6641X-X AIR MOTOR MANUAL, FORM 3637-2 GENERALIN!
FORMATION SHEET.	BASIC PUMP		RELEASED: 6–21–95
			(REV. A) IPP/PSE
3” AIR MOTOR
50:1 RATIO	72643–D	72654–X–D
2 1/4” STROKE	35 LB DRUM	400 LB DRUM

READ THIS MANUAL CAREFULLY BEFORE INSTALLING,

OPERATING OR SERVICING THIS EQUIPMENT.

SERVICE KITS

•Use only genuine AROR replacement parts to assure compatible pressure rating and longest service life.

•637066-B for repair of Air Motor section.

•60520 for repair of Lower Pump section.

GENERAL DESCRIPTION

This model is designed for delivery of heavy viscosity fluids such as chassis lubrication fluids. Material dispensing accessories and supply lines and fittings must be capable of withstanding pressures developed by pump.

•The ARO 50:1 ratio basic pump assembly consists of a 3" air motor and lower pump end.

RATIO x REGULATED AIR PRESSURE TO AIR MOTOR = MAXIMUM FLUID PRESSURE.

•The 50:1 ratio is an expression of the relationship between the air motor area and the lower pump end area. When 150 p.s.i. (10 bar) air pressure is supplied to the air motor, the lower pump end will develop a maximum of 7,500 p.s.i. (517 bar) fluid pressure (at no flow) - as the fluid control is opened, the flow rate will increase as the air motor cycle rate increases to keep up with the demand.

PUMP DATA

	66410
	Air Motor
	1/2 NPT
	Mat’l Outlet
``A"
	Model No.	``A"	``B"
	72643-D	27.3"	19.1"
		(693.4 mm)	(485.1 mm)
	72654-D	44.2"	36"
		(1123.9 mm)	(918.4 mm)
``B"	72654-1-D	44.5"	36.2"
		(924.7 mm)	(1130.2 mm)
	FIGURE 1
	Lower Pump
	Mat’l Inlet

OPERATING AND SAFETY PRECAUTIONS

•	HEED ALL WARNINGS.		• Do not operate pump continuously at speeds in excess of 75 cycles per min4
•	DO NOT EXCEED MAXIMUM WORKING PRESSURE OF 7,500 PSI (517			ute.
	BAR) AT 150 PSI (10 BAR) AIR INLET PRESSURE.			WARNING	: PREVENT STATIC SPARKING. If static sparking
	WARNING	: HIGH PRESSURE DEVICE. Improper usage of		occurs, fire or explosion could result. Pump, dispensing
	this equipment could result in serious injury. The possibility			valve and containers must be grounded when handling in!
	of injection into the flesh is a potential hazard. Never allow any			flammable fluids such as petroleum products, paints, lac!
	part of the human body to come in front of or in direct contact			quers, etc. and wherever discharge of static electricity is a
	with the material outlet. An injection injury can be serious. If		•	hazard.
	injection should occur, contact a qualified physician immedi!			Use grounded hoses (static wire) and be sure the object is grounded if it can
	ately for treatment.			produce a static charge.
•	COMPONENTRUPTURE. This pump is capable of producing high material		• Use grounded hoses (static wire) and be sure the object is
•	pressure as stated on pump model plate.			grounded if it can produce a static charge.
	Be sure material hoses and other components are able to withstand fluid		• Disconnect air line from pump air motor when system sits idle for long peri4

pressures developed by this pump. ods of time.

THE ARO CORPORATION D ONE ARO CENTER D BRYAN, OHIO 43506–0151

&(419) 636–4242 D FAX (419) 636–2115

E1995 THE ARO CORPORATION D PRINTED IN U.S.A.