Ingersoll-Rand 6737X-XXX Operator's Manual

OPERATOR'S MANUAL
INCLUDING: SERVICE KITS, TROUBLESHOOTING, PARTS LIST,
DISASSEMBLY & REASSEMBLY.
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.

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

DO NOT EXCEED MAXIMUM OPERATING PRES-
WARNING
SURE AS INDICATED ON PUMP MODEL PLATE.
REFER TO GENERAL INFORMATION SHEET FOR
WARNING
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.
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276 FAX(800) 892-6276
www.ingersollrandproducts.com
TWO-BALL STYLE
LOWER PUMP ENDS
Also covers 637444-XXX service kits
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
The original language of this manual is English.
CCN 15262132
© 2010

LOWER PUMP END DESCRIPTION CHART

Pump Material
1 - 400 series stainless steel
2 - 300 series stainless steel
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)
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
Plunger Type
D - Hardened stainless steel with hard chrome plating
F - Stainless steel with hard chrome plating

Service Kit Selection

Example: Lower Pump End # 67371-C6D
Service Kit # 637444-C6D
6737X-XXX
RELEASED: 2-2-09
REVISED: 6-3-10
(REV. 02)
Figure 1
6737 X - X X X
6737X - X X X
637444 - X X D
Packing Spring