Ingersoll Rand 6737X-XXX - Manual

CCN 15262132

OPERATOR’S MANUAL

6737X-XXX

INCLUDING: SERVICE KITS, TROUBLESHOOTING, PARTS LIST,
DISASSEMBLY & REASSEMBLY.

RELEASED: 2-2-09
REVISED: 6-3-10
(REV. 02)

TWO-BALL STYLE

LOWER PUMP ENDS

Also covers 637444-XXX service kits

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.

The original language of this manual is English.

SERVICE KITS

Use only genuine ARO® replacement parts to assure compatible

pressure rating and longest service life.

637444-XXX for general repair of 6737X-XXX lower pump ends.

GENERAL DESCRIPTION

WARNING

DO NOT EXCEED MAXIMUM OPERATING PRES-

SURE AS INDICATED ON PUMP MODEL PLATE.

WARNING

REFER TO GENERAL INFORMATION SHEET FOR

ADDITIONAL SAFETY PRECAUTIONS AND IMPORTANT IN-
FORMATION.

This manual covers the lower pump section. It is one of four
documents which support an ARO pump. Replacement copies
of these forms are available upon request.

NMXXXXX-XX-XXX Pump Model Operator’s Manual.
General Information for Air / Hydraulically Operated Piston

Pumps.

Lower Pump End Operator’s Manual.
Air / Hydraulic Motor Operator’s Manual.

The two-ball design provides better priming of the lower foot
valve. The double acting feature is standard in all ARO indus-
trial pumps. Material is delivered to the pump discharge outlet
on both the up and down stroke.

MAINTENANCE

The air / hydraulic motor is completely separate from the lower
pump end. This helps to keep the motor from being contaminated
by the material being pumped. Periodically, flush entire pump
system with a solvent that is compatible with the material being
pumped.
Keep solvent cup fi lled with this compatible solvent. This will keep
the material from drying on the piston rod, which would drag
through the packings, ruin them and eventually scour the piston
rod.
Provide a clean work surface to protect sensitive internal moving
parts from contamination from dirt and foreign matter during dis-
assembly and reassembly.
Before reassembling, lubricate parts as required. When assembling
“O” rings, or parts adjacent to “O” rings, exercise care to prevent
damage to “O” rings and “O” ring groove surface.

LOWER PUMP END DESCRIPTION CHART

Figure

1

6737 X - X X X

Service Kit Selection

Example: Lower Pump End # 67371-C6D
Service Kit # 637444-C6D

6737X - X X X

Packing

Spring

637444 - X X D

Packing Material

C - UHMW-PE (upper and lower)
K - Carbon and Graphite fi lled PTFE with nitrile ener-

gizer (upper and lower)

L - Mineral fi lled PTFE (upper and lower)
P - UHMW-PE / Mineral fi lled PTFE staggered (upper)
UHMW-PE

(lower)

R - Mineral fi lled PTFE / UHMW-PE staggered (upper)
Mineral

fi lled PTFE (lower)

Plunger Type

D - Hardened stainless steel with hard chrome plating
F - Stainless steel with hard chrome plating

Spring Arrangement

3 - No spring
6 - Wave spring
8 - No spring with alternate solvent cup
C - No spring with alternate seat material
D - Wave spring with alternate seat material
E - Wave spring with alternate solvent cup
F - No spring with alternate seat material and alternate

solvent cup

G - Wave spring with alternate seat material and alternate

solvent cup

Pump Material

1 - 400 series stainless steel
2 - 300 series stainless steel

INGERSOLL RAND COMPANY LTD

209 NORTH MAIN STREET – BRYAN, OHIO 43506

(800) 495-0276

FAX

(800) 892-6276

© 2010

www.ingersollrandproducts.com