Справочник Пользователя для Ingersoll-Rand 650883-XXX-B

The two-ball pumps are primarily designed for the pumping of 
medium viscosity fl uids. Stainless steel construction off ers compat-
ibility with a wide range of fluids. The two-ball design provides 
better priming of the lower foot valve. The double acting feature 
is standard in all ARO industrial pumps. Material is delivered to the 
pump discharge outlet on both the up and down stroke.
The motor is connected to the lower pump end by a spacer section. 
This allows for lubrication of the upper packing gland and prevents 
motor contamination because of normal wear and eventual leak-
age through the material packing gland. Be sure the solvent cup is 
adequately fi lled with lubricant to protect the upper packings and 
insure longest service life.

Pump ratio is an expression of the relationship between the pump motor area 
and the lower pump end area. EXAMPLE: When 150 p.s.i. (10.3 bar) inlet pressure 
is supplied to the motor of a 4:1 ratio pump, it will develop a maximum of 600 
p.s.i. (41.4 bar) fl uid pressure (at no fl ow) - as the fl uid control is opened, the fl ow 
rate will increase as the motor cycle rate increases to keep up with the demand.

NOTICE: Thermal expansion can occur when the fl uid in the mate-
rial lines is exposed to elevated temperatures. Example: Material 
lines located in a non-insulated roof area can warm due to sunlight. 
Install a pressure relief valve in the pumping system.
Replacement warning label (pn 92325) is available upon re-
quest.

Pump problems can occur in either the air motor section or the 
lower pump end section. Use these basic guidelines to help deter-
mine which section is aff ected.

Be certain to first check for non-pump problems including 
kinked, restrictive or plugged inlet / outlet hose or dispensing 
device. Depressurize the pump system and clean out any ob-
structions in the inlet / outlet material lines.
Refer to the motor manual for trouble shooting if the pump 
does not cycle and / or air leaks from the air motor.
Damaged motor. Service the motor.

Refer to the lower pump end manual for further trouble shoot-
ing.

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Lay the pump assembly on a work bench.
Remove the three (Y85-29-C) nuts from the three spacer rods 
(see fi gure 1).
Pull the air motor from the lower pump end until the motor 
piston rod is in the “down” position and the lower pump end 
rod is in the “up” position.
Using e-ring pliers, slide the “e” ring up far enough to allow the 
sleeve to move upward and release the two connectors (see 
fi gure 2).

Align the pump motor with the lower pump end. Position the 
air inlet of the motor 45° from the material outlet.
Install the two connectors (94688) and retain with the sleeve 
(94689). Slide the “e” ring (95069) back into position.
Reinstall the spacer rods to the pump motor.
Bring the motor and lower pump together and retain with 
three (Y85-29-C) nuts.

1.
2.

3.

4.

1.

2.

3.
4.

(Packings are upper and lower unless noted)

3 -  Glass fi lled PTFE 

P -  UHMW-PE / PTFE staggered (upper)

C -  UHMW-PE 

 

UHMW-PE (lower)

G -  UHMW-PE / Leather staggered 

R -  PTFE / UHMW-PE staggered (upper)

  

 Glass 

fi lled PTFE (lower)

4 -  Multiple wave spring with stainless 

D -  Hard stainless steel with hard chrome plating

 

steel balls 

G -  Hard stainless steel with ceramic coating

7 -  Multiple wave spring with alternate
 

balls (hard stainless steel)

y ARO® is a registered trademark of Ingersoll-Rand y