E2006 CCN 99452401
& (800) 276-4658 D FAX (800) 266-7016
INGERSOLL RAND COMPANY LTD
P.O. BOX 151 D ONE ARO CENTER D BRYAN, OHIO 43506-0151

OPERATOR’S MANUAL 650751-X

RELEASED: 9-14-93
REVISED: 5-4-06
(REV. G)

SPECIAL 1-1/2” DIAPHRAGM PUMPS

650751 (BSP THREADS WITH VITON DIAPHRAGMS)
650751-1 (BSP THREADS WITH TEFLON / SANTOPRENE DIAPHRAGMS)
650751-2 (N.P.T.F. THREADS WITH TEFLON / SANTOPRENE DIAPHRAGMS)
INCLUDE OPERATOR’S MANUAL: 66615X-X-C (pn 97999-96).

GENERAL DESCRIPTION

Models 650751-X are similar to standard models in the 1-1/2" Metallic
Diaphragm Pump family. A 66615X-X-C Operator’s Manual should be
used for General Information, Installation, Operation and Maintenance.
These special pumps have Aluminum center bodies, Stainless Steel
manifolds and fluid caps, Stainless Steel seats and Teflon balls. Refer to
the views for the substituted parts.
650751 is similar to model 666171-243-C.
650751-1 is similar to model 666171-244-C.
650751-2 is similar to model 666151-244-C.

SERVICE KITS

650751 k 65764 - Air Valve Section, 65766 - Fluid Section
650751-1 k 65010 - Air Valve Section, 65705 - Fluid Section
650751-2 k 637380 - Air Valve Section, 637381 - Fluid Section
Refer to the Operator’s Manual for Disassembly and Reassembly in-
formation.
kKit Note: Some parts included in these kits are used on 1" diaphragm
pumps and would not be required to service this model.
‘J" ‘O" Ring (1/8" x 2-3/4" o.d.)
‘I" Diaphragm
‘K" ‘‘O" Ring (1/16" x 3/4" o.d.)
‘F" ‘‘O" Ring (3/32" x 1" o.d.)
‘E" ‘‘O" Ring (1/8" x 3/4" o.d.)
‘H" ‘‘O" Ring (3/32" x 9/16" o.d.)
‘G" ‘‘O" Ring (1/16" x 1-1/4" o.d.)
Figure 1
PARTS LIST FOR SPECIAL PUMP MODELS
MODEL A (6) B (5) C D E (4) FG (2) H (2) I (2) J (4) K (4) L
650751 Y327-126 Y327-214 93871-1 93870-1 Y329-206 Y329-117 Y327-24 Y327-110 92755-3 Y327-230 Y327-16 Y247-51
650751-1 93876 93878 93871 93870 93075 93875 93873 93874 94617
94616
Y220-230 Y328-16 Y184-51
650751-2 Y327-126 Y327-214 93871-1 93870-1 Y329-206 Y329-117 Y327-24 94820 94617
94616
Y220-230 Y328-16 Y247-51