ARO 650636-X43-C Посібник оператора - Сторінка 2

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650636- -X

PACKING MATERIAL

GENERAL DESCRIPTION

WARNING HAZARDOUS PRESSURE. Do not exceed maxi-

mum operating pressure of 450 psi (31.0 bar) at 150 psi (10.3

bar) inlet air pressure.

PUMP RATIO X

INLET PRESSURE TO PUMP MOTOR

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 3:1 ratio pump it will develop a maximum of 450 p.s.i. (31.0 bar) fluid

pressure (at no flow) -- as the fluid control is opened, the flow rate will increase as the

motor cycle rate increases to keep up with the demand.

WARNING Refer to general information sheet for additional

safety precautions and important information.

•

The Four--Ball pumps are primarily designed for the high volume

transfer of light and medium viscosity fluids compatible with 400 se-

ries stainless steel. The lower pump is designed for easy priming

and the double acting feature is standard on 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 leakage

through the material packing gland. Be sure the solvent cup is ade-

quately filled with lubricant to protect the upper packings and insure

longest service life.

TROUBLE SHOOTING

Pump problems can occur in either the Air Motor Section or the Lower

Pump End Section. Use these basic guidelines to help determine which

section is affected.

If the pump will not cycle.

•

Be certain to first check for non--pump problems including kinked,

restrictive or plugged inlet/outlet hose or dispensing device. Depres-

surize the pump system and clean out any obstructions 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.

If the pump cycles but does not deliver material.

•

Refer to the lower pump end manual for further trouble shooting.

PUMP OPTION DESCRIPTION CHART

4 3 - -C

PLUNGER TYPE

SPRING ARRANGEMENT

MAXIMUM PUMP

FLUID PRESSURE

PACKING MATERIAL

(PACKINGS ARE UPPER AND LOWER UNLESS NOTED)

GLASS FILLED PTFE (UPPER)

)

VIRGIN PTFE (LOWER

UHMW--PE

UHMW--PE/LEATHER STAG'D (UPPER)

UHMW--PE (LOWER)

SPRING ARRANGEMENT

MULTIPLE WAVE SPRING

PUMP CONNECTION - - UPPER / LOWER

NOTE: All threads are right hand.

1. Lay the pump assembly on a workbench.

2. Remove the three nuts and washers from the three spacer rods (see

figure 1).

3. Pull the air motor from the lower pump end until motor piston rod is in

the ''down" position and lower pump end rod is in ''up" position.

4. Using e--ring pliers, slide the retaining ring up far enough to allow the

sleeve to move upward and release the two connectors (see figure

2).

PUMP CONNECTOR DETAIL

Pump Motor

Piston Rod

FIGURE 2

Lower Pump

Piston Rod

1. Align the pump motor with the lower pump end. Position the air inlet

of the motor 200_ from the material outlet.

2. Install the two connectors and retain with the sleeve, slide the retain-

ing ring back into position.

3. Reinstall the spacer rods to the pump motor.

4. Bring the motor and lower pump together and retain with the three

nuts and washers.

UHMW--PE/PTFE STAG'D (UPPER)

UHMW--PE (LOWER)

PTFE/UHMW--PE STAG'D (UPPER)

PTFE (LOWER)

PLUNGER TYPE

HD SS W/HD CHROME PLATING

RETAINING RING

91547

SLEEVE 91546

CONNECTOR

91644 (2)

REASSEMBLY

PN 97999- 692

650636- X- C